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330edc2bc0
1310726 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Sergey Senozhatsky
|
330edc2bc0 |
zram: rework writeback target selection strategy
Writeback suffers from the same problem as recompression did before - target slot selection for writeback is just a simple iteration over zram->table entries (stored pages) which selects suboptimal targets for writeback. This is especially problematic for writeback, because we uncompress objects before writeback so each of them takes 4K out of limited writeback storage. For example, when we take a 48 bytes slot and store it as a 4K object to writeback device we only save 48 bytes of memory (release from zsmalloc pool). We naturally want to pick the largest objects for writeback, because then each writeback will release the largest amount of memory. This patch applies the same solution and strategy as for recompression target selection: pp control (post-process) with 16 buckets of candidate pp slots. Slots are assigned to pp buckets based on sizes - the larger the slot the higher the group index. This gives us sorted by size lists of candidate slots (in linear time), so that among post-processing candidate slots we always select the largest ones first and maximize the memory saving. TEST ==== A very simple demonstration: zram is configured with a writeback device. A limited writeback (wb_limit 2500 pages) is performed then, with a log of sizes of slots that were written back. You can see that patched zram selects slots for recompression in significantly different manner, which leads to higher memory savings (see column #2 of mm_stat output). BASE ---- *** initial state of zram device /sys/block/zram0/mm_stat 1750327296 619765836 631902208 0 631902208 1 0 34278 34278 *** writeback idle wb_limit 2500 /sys/block/zram0/mm_stat 1750327296 617622333 631578624 0 631902208 1 0 34278 34278 Sizes of selected objects for writeback: ... 193 349 46 46 46 46 852 1002 543 162 107 49 34 34 34 ... PATCHED ------- *** initial state of zram device /sys/block/zram0/mm_stat 1750319104 619760957 631992320 0 631992320 1 0 34278 34278 *** writeback idle wb_limit 2500 /sys/block/zram0/mm_stat 1750319104 612672056 626135040 0 631992320 1 0 34278 34278 Sizes of selected objects for writeback: ... 3667 3580 3581 3580 3581 3581 3581 3231 3211 3203 3231 3246 ... Note, pp-slots are not strictly sorted, there is a PP_BUCKET_SIZE_RANGE variation of sizes within particular bucket. Link: https://lkml.kernel.org/r/20240917021020.883356-5-senozhatsky@chromium.org Signed-off-by: Sergey Senozhatsky <senozhatsky@chromium.org> Cc: Minchan Kim <minchan@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
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Sergey Senozhatsky
|
3f909a60ce |
zram: rework recompress target selection strategy
Target slot selection for recompression is just a simple iteration over zram->table entries (stored pages) from slot 0 to max slot. Given that zram->table slots are written in random order and are not sorted by size, a simple iteration over slots selects suboptimal targets for recompression. This is not a problem if we recompress every single zram->table slot, but we never do that in reality. In reality we limit the number of slots we can recompress (via max_pages parameter) and hence proper slot selection becomes very important. The strategy is quite simple, suppose we have two candidate slots for recompression, one of size 48 bytes and one of size 2800 bytes, and we can recompress only one, then it certainly makes more sense to pick 2800 entry for recompression. Because even if we manage to compress 48 bytes objects even further the savings are going to be very small. Potential savings after good re-compression of 2800 bytes objects are much higher. This patch reworks slot selection and introduces the strategy described above: among candidate slots always select the biggest ones first. For that the patch introduces zram_pp_ctl (post-processing) structure which holds NUM_PP_BUCKETS pp buckets of slots. Slots are assigned to a particular group based on their sizes - the larger the size of the slot the higher the group index. This, basically, sorts slots by size in liner time (we still perform just one iteration over zram->table slots). When we select slot for recompression we always first lookup in higher pp buckets (those that hold the largest slots). Which achieves the desired behavior. TEST ==== A very simple demonstration: zram is configured with zstd, and zstd with dict as a recompression stream. A limited (max 4096 pages) recompression is performed then, with a log of sizes of slots that were recompressed. You can see that patched zram selects slots for recompression in significantly different manner, which leads to higher memory savings (see column #2 of mm_stat output). BASE ---- *** initial state of zram device /sys/block/zram0/mm_stat 1750994944 504491413 514203648 0 514203648 1 0 34204 34204 *** recompress idle max_pages=4096 /sys/block/zram0/mm_stat 1750994944 504262229 514953216 0 514203648 1 0 34204 34204 Sizes of selected objects for recompression: ... 45 58 24 226 91 40 24 24 24 424 2104 93 2078 2078 2078 959 154 ... PATCHED ------- *** initial state of zram device /sys/block/zram0/mm_stat 1750982656 504492801 514170880 0 514170880 1 0 34204 34204 *** recompress idle max_pages=4096 /sys/block/zram0/mm_stat 1750982656 503716710 517586944 0 514170880 1 0 34204 34204 Sizes of selected objects for recompression: ... 3680 3694 3667 3590 3614 3553 3537 3548 3550 3542 3543 3537 ... Note, pp-slots are not strictly sorted, there is a PP_BUCKET_SIZE_RANGE variation of sizes within particular bucket. [senozhatsky@chromium.org: do not skip the first bucket] Link: https://lkml.kernel.org/r/20241001085634.1948384-1-senozhatsky@chromium.org Link: https://lkml.kernel.org/r/20240917021020.883356-4-senozhatsky@chromium.org Signed-off-by: Sergey Senozhatsky <senozhatsky@chromium.org> Cc: Minchan Kim <minchan@kernel.org> Cc: Dan Carpenter <dan.carpenter@linaro.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
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Sergey Senozhatsky
|
58652f2b6d |
zram: permit only one post-processing operation at a time
Both recompress and writeback soon will unlock slots during processing, which makes things too complex wrt possible race-conditions. We still want to clear PP_SLOT in slot_free, because this is how we figure out that slot that was selected for post-processing has been released under us and when we start post-processing we check if slot still has PP_SLOT set. At the same time, theoretically, we can have something like this: CPU0 CPU1 recompress scan slots set PP_SLOT unlock slot slot_free clear PP_SLOT allocate PP_SLOT writeback scan slots set PP_SLOT unlock slot select PP-slot test PP_SLOT So recompress will not detect that slot has been re-used and re-selected for concurrent writeback post-processing. Make sure that we only permit on post-processing operation at a time. So now recompress and writeback post-processing don't race against each other, we only need to handle slot re-use (slot_free and write), which is handled individually by each pp operation. Having recompress and writeback competing for the same slots is not exactly good anyway (can't imagine anyone doing that). Link: https://lkml.kernel.org/r/20240917021020.883356-3-senozhatsky@chromium.org Signed-off-by: Sergey Senozhatsky <senozhatsky@chromium.org> Cc: Minchan Kim <minchan@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
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Sergey Senozhatsky
|
bf779fb9af |
zram: introduce ZRAM_PP_SLOT flag
Patch series "zram: optimal post-processing target selection", v5. Problem: -------- Both recompression and writeback perform a very simple linear scan of all zram slots in search for post-processing (writeback or recompress) candidate slots. This often means that we pick the worst candidate for pp (post-processing), e.g. a 48 bytes object for writeback, which is nearly useless, because it only releases 48 bytes from zsmalloc pool, but consumes an entire 4K slot in the backing device. Similarly, recompression of an 48 bytes objects is unlikely to save more memory that recompression of a 3000 bytes object. Both recompression and writeback consume constrained resources (CPU time, batter, backing device storage space) and quite often have a (daily) limit on the number of items they post-process, so we should utilize those constrained resources in the most optimal way. Solution: --------- This patch reworks the way we select pp targets. We, quite clearly, want to sort all the candidates and always pick the largest, be it recompression or writeback. Especially for writeback, because the larger object we writeback the more memory we release. This series introduces concept of pp buckets and pp scan/selection. The scan step is a simple iteration over all zram->table entries, just like what we currently do, but we don't post-process a candidate slot immediately. Instead we assign it to a PP (post-processing) bucket. PP bucket is, basically, a list which holds pp candidate slots that belong to the same size class. PP buckets are 64 bytes apart, slots are not strictly sorted within a bucket there is a 64 bytes variance. The select step simply iterates over pp buckets from highest to lowest and picks all candidate slots a particular buckets contains. So this gives us sorted candidates (in linear time) and allows us to select most optimal (largest) candidates for post-processing first. This patch (of 7): This flag indicates that the slot was selected as a candidate slot for post-processing (pp) and was assigned to a pp bucket. It does not necessarily mean that the slot is currently under post-processing, but may mean so. The slot can loose its PP_SLOT flag, while still being in the pp-bucket, if it's accessed or slot_free-ed. Link: https://lkml.kernel.org/r/20240917021020.883356-1-senozhatsky@chromium.org Link: https://lkml.kernel.org/r/20240917021020.883356-2-senozhatsky@chromium.org Signed-off-by: Sergey Senozhatsky <senozhatsky@chromium.org> Cc: Minchan Kim <minchan@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
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Adrian Huang
|
9e9e085eff |
mm/vmalloc: combine all TLB flush operations of KASAN shadow virtual address into one operation
When compiling kernel source 'make -j $(nproc)' with the up-and-running
KASAN-enabled kernel on a 256-core machine, the following soft lockup is
shown:
watchdog: BUG: soft lockup - CPU#28 stuck for 22s! [kworker/28:1:1760]
CPU: 28 PID: 1760 Comm: kworker/28:1 Kdump: loaded Not tainted 6.10.0-rc5 #95
Workqueue: events drain_vmap_area_work
RIP: 0010:smp_call_function_many_cond+0x1d8/0xbb0
Code: 38 c8 7c 08 84 c9 0f 85 49 08 00 00 8b 45 08 a8 01 74 2e 48 89 f1 49 89 f7 48 c1 e9 03 41 83 e7 07 4c 01 e9 41 83 c7 03 f3 90 <0f> b6 01 41 38 c7 7c 08 84 c0 0f 85 d4 06 00 00 8b 45 08 a8 01 75
RSP: 0018:ffffc9000cb3fb60 EFLAGS: 00000202
RAX: 0000000000000011 RBX: ffff8883bc4469c0 RCX: ffffed10776e9949
RDX: 0000000000000002 RSI: ffff8883bb74ca48 RDI: ffffffff8434dc50
RBP: ffff8883bb74ca40 R08: ffff888103585dc0 R09: ffff8884533a1800
R10: 0000000000000004 R11: ffffffffffffffff R12: ffffed1077888d39
R13: dffffc0000000000 R14: ffffed1077888d38 R15: 0000000000000003
FS: 0000000000000000(0000) GS:ffff8883bc400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005577b5c8d158 CR3: 0000000004850000 CR4: 0000000000350ef0
Call Trace:
<IRQ>
? watchdog_timer_fn+0x2cd/0x390
? __pfx_watchdog_timer_fn+0x10/0x10
? __hrtimer_run_queues+0x300/0x6d0
? sched_clock_cpu+0x69/0x4e0
? __pfx___hrtimer_run_queues+0x10/0x10
? srso_return_thunk+0x5/0x5f
? ktime_get_update_offsets_now+0x7f/0x2a0
? srso_return_thunk+0x5/0x5f
? srso_return_thunk+0x5/0x5f
? hrtimer_interrupt+0x2ca/0x760
? __sysvec_apic_timer_interrupt+0x8c/0x2b0
? sysvec_apic_timer_interrupt+0x6a/0x90
</IRQ>
<TASK>
? asm_sysvec_apic_timer_interrupt+0x16/0x20
? smp_call_function_many_cond+0x1d8/0xbb0
? __pfx_do_kernel_range_flush+0x10/0x10
on_each_cpu_cond_mask+0x20/0x40
flush_tlb_kernel_range+0x19b/0x250
? srso_return_thunk+0x5/0x5f
? kasan_release_vmalloc+0xa7/0xc0
purge_vmap_node+0x357/0x820
? __pfx_purge_vmap_node+0x10/0x10
__purge_vmap_area_lazy+0x5b8/0xa10
drain_vmap_area_work+0x21/0x30
process_one_work+0x661/0x10b0
worker_thread+0x844/0x10e0
? srso_return_thunk+0x5/0x5f
? __kthread_parkme+0x82/0x140
? __pfx_worker_thread+0x10/0x10
kthread+0x2a5/0x370
? __pfx_kthread+0x10/0x10
ret_from_fork+0x30/0x70
? __pfx_kthread+0x10/0x10
ret_from_fork_asm+0x1a/0x30
</TASK>
Debugging Analysis:
1. The following ftrace log shows that the lockup CPU spends too much
time iterating vmap_nodes and flushing TLB when purging vm_area
structures. (Some info is trimmed).
kworker: funcgraph_entry: | drain_vmap_area_work() {
kworker: funcgraph_entry: | mutex_lock() {
kworker: funcgraph_entry: 1.092 us | __cond_resched();
kworker: funcgraph_exit: 3.306 us | }
... ...
kworker: funcgraph_entry: | flush_tlb_kernel_range() {
... ...
kworker: funcgraph_exit: # 7533.649 us | }
... ...
kworker: funcgraph_entry: 2.344 us | mutex_unlock();
kworker: funcgraph_exit: $ 23871554 us | }
The drain_vmap_area_work() spends over 23 seconds.
There are 2805 flush_tlb_kernel_range() calls in the ftrace log.
* One is called in __purge_vmap_area_lazy().
* Others are called by purge_vmap_node->kasan_release_vmalloc.
purge_vmap_node() iteratively releases kasan vmalloc
allocations and flushes TLB for each vmap_area.
- [Rough calculation] Each flush_tlb_kernel_range() runs
about 7.5ms.
-- 2804 * 7.5ms = 21.03 seconds.
-- That's why a soft lock is triggered.
2. Extending the soft lockup time can work around the issue (For example,
# echo 60 > /proc/sys/kernel/watchdog_thresh). This confirms the
above-mentioned speculation: drain_vmap_area_work() spends too much
time.
If we combine all TLB flush operations of the KASAN shadow virtual
address into one operation in the call path
'purge_vmap_node()->kasan_release_vmalloc()', the running time of
drain_vmap_area_work() can be saved greatly. The idea is from the
flush_tlb_kernel_range() call in __purge_vmap_area_lazy(). And, the
soft lockup won't be triggered.
Here is the test result based on 6.10:
[6.10 wo/ the patch]
1. ftrace latency profiling (record a trace if the latency > 20s).
echo 20000000 > /sys/kernel/debug/tracing/tracing_thresh
echo drain_vmap_area_work > /sys/kernel/debug/tracing/set_graph_function
echo function_graph > /sys/kernel/debug/tracing/current_tracer
echo 1 > /sys/kernel/debug/tracing/tracing_on
2. Run `make -j $(nproc)` to compile the kernel source
3. Once the soft lockup is reproduced, check the ftrace log:
cat /sys/kernel/debug/tracing/trace
# tracer: function_graph
#
# CPU DURATION FUNCTION CALLS
# | | | | | | |
76) $ 50412985 us | } /* __purge_vmap_area_lazy */
76) $ 50412997 us | } /* drain_vmap_area_work */
76) $ 29165911 us | } /* __purge_vmap_area_lazy */
76) $ 29165926 us | } /* drain_vmap_area_work */
91) $ 53629423 us | } /* __purge_vmap_area_lazy */
91) $ 53629434 us | } /* drain_vmap_area_work */
91) $ 28121014 us | } /* __purge_vmap_area_lazy */
91) $ 28121026 us | } /* drain_vmap_area_work */
[6.10 w/ the patch]
1. Repeat step 1-2 in "[6.10 wo/ the patch]"
2. The soft lockup is not triggered and ftrace log is empty.
cat /sys/kernel/debug/tracing/trace
# tracer: function_graph
#
# CPU DURATION FUNCTION CALLS
# | | | | | | |
3. Setting 'tracing_thresh' to 10/5 seconds does not get any ftrace
log.
4. Setting 'tracing_thresh' to 1 second gets ftrace log.
cat /sys/kernel/debug/tracing/trace
# tracer: function_graph
#
# CPU DURATION FUNCTION CALLS
# | | | | | | |
23) $ 1074942 us | } /* __purge_vmap_area_lazy */
23) $ 1074950 us | } /* drain_vmap_area_work */
The worst execution time of drain_vmap_area_work() is about 1 second.
Link: https://lore.kernel.org/lkml/ZqFlawuVnOMY2k3E@pc638.lan/
Link: https://lkml.kernel.org/r/20240726165246.31326-1-ahuang12@lenovo.com
Fixes:
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Jingxiang Zeng
|
15ff4d409e |
mm/memcontrol: add per-memcg pgpgin/pswpin counter
In proactive memory reclamation scenarios, it is necessary to estimate the pswpin and pswpout metrics of the cgroup to determine whether to continue reclaiming anonymous pages in the current batch. This patch will collect these metrics and expose them. [linuszeng@tencent.com: v2] Link: https://lkml.kernel.org/r/20240830082244.156923-1-jingxiangzeng.cas@gmail.com Li nk: https://lkml.kernel.org/r/20240913084453.3605621-1-jingxiangzeng.cas@gmail.com Link: https://lkml.kernel.org/r/20240830082244.156923-1-jingxiangzeng.cas@gmail.com Signed-off-by: Jingxiang Zeng <linuszeng@tencent.com> Acked-by: Nhat Pham <nphamcs@gmail.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Michal Hocko <mhocko@kernel.org> Cc: Muchun Song <muchun.song@linux.dev> Cc: Roman Gushchin <roman.gushchin@linux.dev> Cc: Shakeel Butt <shakeel.butt@linux.dev> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
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Leo Stone
|
ba7196e566 |
mm/damon: fix sparse warning for zero initializer
sparse warns about zero initializing an array with {0,}, change it to
the equivalent {0}.
Fixes the sparse warning:
mm/damon/tests/vaddr-kunit.h:69:47: warning: missing braces around initializer
Link: https://lkml.kernel.org/r/xriwklcwjpwcz7eiavo6f7envdar4jychhsk6sfkj5klaznb6b@j6vrvr2sxjht
Fixes:
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Baolin Wang
|
d2d243df44 |
mm: shmem: fix khugepaged activation policy for shmem
Shmem has a separate interface (different from anonymous pages) to control huge page allocation, that means shmem THP can be enabled while anonymous THP is disabled. However, in this case, khugepaged will not start to collapse shmem THP, which is unreasonable. To fix this issue, we should call start_stop_khugepaged() to activate or deactivate the khugepaged thread when setting shmem mTHP interfaces. Moreover, add a new helper shmem_hpage_pmd_enabled() to help to check whether shmem THP is enabled, which will determine if khugepaged should be activated. Link: https://lkml.kernel.org/r/9b9c6cbc4499bf44c6455367fd9e0f6036525680.1726978977.git.baolin.wang@linux.alibaba.com Signed-off-by: Baolin Wang <baolin.wang@linux.alibaba.com> Reported-by: Ryan Roberts <ryan.roberts@arm.com> Reviewed-by: Ryan Roberts <ryan.roberts@arm.com> Cc: David Hildenbrand <david@redhat.com> Cc: Hugh Dickins <hughd@google.com> Cc: Matthew Wilcox <willy@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
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Lorenzo Stoakes
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f8f55e9ec7 |
selftests/mm: add pkey_sighandler_xx, hugetlb_dio to .gitignore
Commit |
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Andrew Morton
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48901e9d62 |
Merge branch 'mm-hotfixes-stable' into mm-stable.
Pick these into mm-stable: |
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Lorenzo Stoakes
|
5de195060b |
mm: resolve faulty mmap_region() error path behaviour
The mmap_region() function is somewhat terrifying, with spaghetti-like
control flow and numerous means by which issues can arise and incomplete
state, memory leaks and other unpleasantness can occur.
A large amount of the complexity arises from trying to handle errors late
in the process of mapping a VMA, which forms the basis of recently
observed issues with resource leaks and observable inconsistent state.
Taking advantage of previous patches in this series we move a number of
checks earlier in the code, simplifying things by moving the core of the
logic into a static internal function __mmap_region().
Doing this allows us to perform a number of checks up front before we do
any real work, and allows us to unwind the writable unmap check
unconditionally as required and to perform a CONFIG_DEBUG_VM_MAPLE_TREE
validation unconditionally also.
We move a number of things here:
1. We preallocate memory for the iterator before we call the file-backed
memory hook, allowing us to exit early and avoid having to perform
complicated and error-prone close/free logic. We carefully free
iterator state on both success and error paths.
2. The enclosing mmap_region() function handles the mapping_map_writable()
logic early. Previously the logic had the mapping_map_writable() at the
point of mapping a newly allocated file-backed VMA, and a matching
mapping_unmap_writable() on success and error paths.
We now do this unconditionally if this is a file-backed, shared writable
mapping. If a driver changes the flags to eliminate VM_MAYWRITE, however
doing so does not invalidate the seal check we just performed, and we in
any case always decrement the counter in the wrapper.
We perform a debug assert to ensure a driver does not attempt to do the
opposite.
3. We also move arch_validate_flags() up into the mmap_region()
function. This is only relevant on arm64 and sparc64, and the check is
only meaningful for SPARC with ADI enabled. We explicitly add a warning
for this arch if a driver invalidates this check, though the code ought
eventually to be fixed to eliminate the need for this.
With all of these measures in place, we no longer need to explicitly close
the VMA on error paths, as we place all checks which might fail prior to a
call to any driver mmap hook.
This eliminates an entire class of errors, makes the code easier to reason
about and more robust.
Link: https://lkml.kernel.org/r/6e0becb36d2f5472053ac5d544c0edfe9b899e25.1730224667.git.lorenzo.stoakes@oracle.com
Fixes:
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Lorenzo Stoakes
|
5baf8b037d |
mm: refactor arch_calc_vm_flag_bits() and arm64 MTE handling
Currently MTE is permitted in two circumstances (desiring to use MTE
having been specified by the VM_MTE flag) - where MAP_ANONYMOUS is
specified, as checked by arch_calc_vm_flag_bits() and actualised by
setting the VM_MTE_ALLOWED flag, or if the file backing the mapping is
shmem, in which case we set VM_MTE_ALLOWED in shmem_mmap() when the mmap
hook is activated in mmap_region().
The function that checks that, if VM_MTE is set, VM_MTE_ALLOWED is also
set is the arm64 implementation of arch_validate_flags().
Unfortunately, we intend to refactor mmap_region() to perform this check
earlier, meaning that in the case of a shmem backing we will not have
invoked shmem_mmap() yet, causing the mapping to fail spuriously.
It is inappropriate to set this architecture-specific flag in general mm
code anyway, so a sensible resolution of this issue is to instead move the
check somewhere else.
We resolve this by setting VM_MTE_ALLOWED much earlier in do_mmap(), via
the arch_calc_vm_flag_bits() call.
This is an appropriate place to do this as we already check for the
MAP_ANONYMOUS case here, and the shmem file case is simply a variant of
the same idea - we permit RAM-backed memory.
This requires a modification to the arch_calc_vm_flag_bits() signature to
pass in a pointer to the struct file associated with the mapping, however
this is not too egregious as this is only used by two architectures anyway
- arm64 and parisc.
So this patch performs this adjustment and removes the unnecessary
assignment of VM_MTE_ALLOWED in shmem_mmap().
[akpm@linux-foundation.org: fix whitespace, per Catalin]
Link: https://lkml.kernel.org/r/ec251b20ba1964fb64cf1607d2ad80c47f3873df.1730224667.git.lorenzo.stoakes@oracle.com
Fixes:
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Lorenzo Stoakes
|
0fb4a7ad27 |
mm: refactor map_deny_write_exec()
Refactor the map_deny_write_exec() to not unnecessarily require a VMA
parameter but rather to accept VMA flags parameters, which allows us to
use this function early in mmap_region() in a subsequent commit.
While we're here, we refactor the function to be more readable and add
some additional documentation.
Link: https://lkml.kernel.org/r/6be8bb59cd7c68006ebb006eb9d8dc27104b1f70.1730224667.git.lorenzo.stoakes@oracle.com
Fixes:
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Lorenzo Stoakes
|
4080ef1579 |
mm: unconditionally close VMAs on error
Incorrect invocation of VMA callbacks when the VMA is no longer in a
consistent state is bug prone and risky to perform.
With regards to the important vm_ops->close() callback We have gone to
great lengths to try to track whether or not we ought to close VMAs.
Rather than doing so and risking making a mistake somewhere, instead
unconditionally close and reset vma->vm_ops to an empty dummy operations
set with a NULL .close operator.
We introduce a new function to do so - vma_close() - and simplify existing
vms logic which tracked whether we needed to close or not.
This simplifies the logic, avoids incorrect double-calling of the .close()
callback and allows us to update error paths to simply call vma_close()
unconditionally - making VMA closure idempotent.
Link: https://lkml.kernel.org/r/28e89dda96f68c505cb6f8e9fc9b57c3e9f74b42.1730224667.git.lorenzo.stoakes@oracle.com
Fixes:
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Lorenzo Stoakes
|
3dd6ed34ce |
mm: avoid unsafe VMA hook invocation when error arises on mmap hook
Patch series "fix error handling in mmap_region() and refactor
(hotfixes)", v4.
mmap_region() is somewhat terrifying, with spaghetti-like control flow and
numerous means by which issues can arise and incomplete state, memory
leaks and other unpleasantness can occur.
A large amount of the complexity arises from trying to handle errors late
in the process of mapping a VMA, which forms the basis of recently
observed issues with resource leaks and observable inconsistent state.
This series goes to great lengths to simplify how mmap_region() works and
to avoid unwinding errors late on in the process of setting up the VMA for
the new mapping, and equally avoids such operations occurring while the
VMA is in an inconsistent state.
The patches in this series comprise the minimal changes required to
resolve existing issues in mmap_region() error handling, in order that
they can be hotfixed and backported. There is additionally a follow up
series which goes further, separated out from the v1 series and sent and
updated separately.
This patch (of 5):
After an attempted mmap() fails, we are no longer in a situation where we
can safely interact with VMA hooks. This is currently not enforced,
meaning that we need complicated handling to ensure we do not incorrectly
call these hooks.
We can avoid the whole issue by treating the VMA as suspect the moment
that the file->f_ops->mmap() function reports an error by replacing
whatever VMA operations were installed with a dummy empty set of VMA
operations.
We do so through a new helper function internal to mm - mmap_file() -
which is both more logically named than the existing call_mmap() function
and correctly isolates handling of the vm_op reassignment to mm.
All the existing invocations of call_mmap() outside of mm are ultimately
nested within the call_mmap() from mm, which we now replace.
It is therefore safe to leave call_mmap() in place as a convenience
function (and to avoid churn). The invokers are:
ovl_file_operations -> mmap -> ovl_mmap() -> backing_file_mmap()
coda_file_operations -> mmap -> coda_file_mmap()
shm_file_operations -> shm_mmap()
shm_file_operations_huge -> shm_mmap()
dma_buf_fops -> dma_buf_mmap_internal -> i915_dmabuf_ops
-> i915_gem_dmabuf_mmap()
None of these callers interact with vm_ops or mappings in a problematic
way on error, quickly exiting out.
Link: https://lkml.kernel.org/r/cover.1730224667.git.lorenzo.stoakes@oracle.com
Link: https://lkml.kernel.org/r/d41fd763496fd0048a962f3fd9407dc72dd4fd86.1730224667.git.lorenzo.stoakes@oracle.com
Fixes:
|
||
|
Hugh Dickins
|
f8f931bba0 |
mm/thp: fix deferred split unqueue naming and locking
Recent changes are putting more pressure on THP deferred split queues: under load revealing long-standing races, causing list_del corruptions, "Bad page state"s and worse (I keep BUGs in both of those, so usually don't get to see how badly they end up without). The relevant recent changes being 6.8's mTHP, 6.10's mTHP swapout, and 6.12's mTHP swapin, improved swap allocation, and underused THP splitting. Before fixing locking: rename misleading folio_undo_large_rmappable(), which does not undo large_rmappable, to folio_unqueue_deferred_split(), which is what it does. But that and its out-of-line __callee are mm internals of very limited usability: add comment and WARN_ON_ONCEs to check usage; and return a bool to say if a deferred split was unqueued, which can then be used in WARN_ON_ONCEs around safety checks (sparing callers the arcane conditionals in __folio_unqueue_deferred_split()). Just omit the folio_unqueue_deferred_split() from free_unref_folios(), all of whose callers now call it beforehand (and if any forget then bad_page() will tell) - except for its caller put_pages_list(), which itself no longer has any callers (and will be deleted separately). Swapout: mem_cgroup_swapout() has been resetting folio->memcg_data 0 without checking and unqueueing a THP folio from deferred split list; which is unfortunate, since the split_queue_lock depends on the memcg (when memcg is enabled); so swapout has been unqueueing such THPs later, when freeing the folio, using the pgdat's lock instead: potentially corrupting the memcg's list. __remove_mapping() has frozen refcount to 0 here, so no problem with calling folio_unqueue_deferred_split() before resetting memcg_data. That goes back to 5.4 commit |
||
|
Hugh Dickins
|
e66f3185fa |
mm/thp: fix deferred split queue not partially_mapped
Recent changes are putting more pressure on THP deferred split queues:
under load revealing long-standing races, causing list_del corruptions,
"Bad page state"s and worse (I keep BUGs in both of those, so usually
don't get to see how badly they end up without). The relevant recent
changes being 6.8's mTHP, 6.10's mTHP swapout, and 6.12's mTHP swapin,
improved swap allocation, and underused THP splitting.
The new unlocked list_del_init() in deferred_split_scan() is buggy. I
gave bad advice, it looks plausible since that's a local on-stack list,
but the fact is that it can race with a third party freeing or migrating
the preceding folio (properly unqueueing it with refcount 0 while holding
split_queue_lock), thereby corrupting the list linkage.
The obvious answer would be to take split_queue_lock there: but it has a
long history of contention, so I'm reluctant to add to that. Instead,
make sure that there is always one safe (raised refcount) folio before, by
delaying its folio_put(). (And of course I was wrong to suggest updating
split_queue_len without the lock: leave that until the splice.)
And remove two over-eager partially_mapped checks, restoring those tests
to how they were before: if uncharge_folio() or free_tail_page_prepare()
finds _deferred_list non-empty, it's in trouble whether or not that folio
is partially_mapped (and the flag was already cleared in the latter case).
Link: https://lkml.kernel.org/r/81e34a8b-113a-0701-740e-2135c97eb1d7@google.com
Fixes:
|
||
|
Linus Torvalds
|
59b723cd2a | Linux 6.12-rc6 | ||
|
Linus Torvalds
|
a8cc743272 |
17 hotfixes. 9 are cc:stable. 13 are MM and 4 are non-MM.
The usual collection of singletons - please see the changelogs.
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Merge tag 'mm-hotfixes-stable-2024-11-03-10-50' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull misc fixes from Andrew Morton:
"17 hotfixes. 9 are cc:stable. 13 are MM and 4 are non-MM.
The usual collection of singletons - please see the changelogs"
* tag 'mm-hotfixes-stable-2024-11-03-10-50' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
mm: multi-gen LRU: use {ptep,pmdp}_clear_young_notify()
mm: multi-gen LRU: remove MM_LEAF_OLD and MM_NONLEAF_TOTAL stats
mm, mmap: limit THP alignment of anonymous mappings to PMD-aligned sizes
mm: shrinker: avoid memleak in alloc_shrinker_info
.mailmap: update e-mail address for Eugen Hristev
vmscan,migrate: fix page count imbalance on node stats when demoting pages
mailmap: update Jarkko's email addresses
mm: allow set/clear page_type again
nilfs2: fix potential deadlock with newly created symlinks
Squashfs: fix variable overflow in squashfs_readpage_block
kasan: remove vmalloc_percpu test
tools/mm: -Werror fixes in page-types/slabinfo
mm, swap: avoid over reclaim of full clusters
mm: fix PSWPIN counter for large folios swap-in
mm: avoid VM_BUG_ON when try to map an anon large folio to zero page.
mm/codetag: fix null pointer check logic for ref and tag
mm/gup: stop leaking pinned pages in low memory conditions
|
||
|
Linus Torvalds
|
d5aaa0bc6d |
phy fixes for 6.12
- Bunch of Qualcomm QMP driver fixes for null deref on suspend, bogus
supplies fix and reset entries fix
- BCM usb driver init array fix
- cadence array offset fix
- starfive link configuration fix
- config dependency fix for rockchip driver
- freescale reset signal fix before pll lock
- tegra driver fix for error pointer check
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Merge tag 'phy-fixes-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy
Pull phy fixes from Vinod Koul:
- Qualcomm QMP driver fixes for null deref on suspend, bogus supplies
fix and reset entries fix
- BCM usb driver init array fix
- cadence array offset fix
- starfive link configuration fix
- config dependency fix for rockchip driver
- freescale reset signal fix before pll lock
- tegra driver fix for error pointer check
* tag 'phy-fixes-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy:
phy: tegra: xusb: Add error pointer check in xusb.c
dt-bindings: phy: qcom,sc8280xp-qmp-pcie-phy: Fix X1E80100 resets entries
phy: freescale: imx8m-pcie: Do CMN_RST just before PHY PLL lock check
phy: phy-rockchip-samsung-hdptx: Depend on CONFIG_COMMON_CLK
phy: ti: phy-j721e-wiz: fix usxgmii configuration
phy: starfive: jh7110-usb: Fix link configuration to controller
phy: qcom: qmp-pcie: drop bogus x1e80100 qref supplies
phy: qcom: qmp-combo: move driver data initialisation earlier
phy: qcom: qmp-usbc: fix NULL-deref on runtime suspend
phy: qcom: qmp-usb-legacy: fix NULL-deref on runtime suspend
phy: qcom: qmp-usb: fix NULL-deref on runtime suspend
dt-bindings: phy: qcom,sc8280xp-qmp-pcie-phy: add missing x1e80100 pipediv2 clocks
phy: usb: disable COMMONONN for dual mode
phy: cadence: Sierra: Fix offset of DEQ open eye algorithm control register
phy: usb: Fix missing elements in BCM4908 USB init array
|
||
|
Linus Torvalds
|
e8529dcb12 |
dmaengine fixes for v6.12
Driver fixes for: - TI driver fix to set EOP for cyclic BCDMA transfers - sh rz-dmac driver fix for handling config with zero address -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEE+vs47OPLdNbVcHzyfBQHDyUjg0cFAmcnoW0ACgkQfBQHDyUj g0c+Gw/+OE81N3SLjd5AhCvMNcXtI/z5fwmzajcwabEuySiBeYUluaTv+hm/Cn44 JJv5HieY5EbBPOx6MzR0MaiwwKnKqMIrgHH21T0+UR2hclmoyw0xOpvoDsMYMNE3 8nf451KRmG2KRHeHV7H8JqF6i7OBhkZaO4KUypTpmViB/3NX2e4LVT739Zn/+9gA ianWA3ldFUf9w2hqhEH/p8nx6v9AFNQFEuG91IzdkANMDy7GBqKo6C/PeJQrpZRX O3bhYlyATJVraQwzoWLOC2D5sSiFbcKmGl2WXd9gY6p74NCd3+oaCo4XLAhPRbGF LGUk5xwJ5mdz9vd0X3r0/iMjk/Yvkb6Wc3mjuxeAYMIC0p8Xa5BGvyPRmc5VnvaP Gpd5aWoEqlIiIM7c699OgHD0l7WnXLbS091JnBhAwiNwaX8IlhuIX18qwyJvcMHN U/DELpVRPa47kohoWxsD7egGBmx8K5nO2nPMnSPA1feit9RBR82W4NGZhk5aywBo v7IiVTTP5N07arKcYtUMNvrM3InnmH/mmJ0Xdrni2RpNPgNATB/z6qcCaRFLejel nsEwSCOusdkDAsIM7y5moZd4UecppwbrJZdOVvR6Co8ncyCE9eo3wUC9hp5coOD6 N7A/Znyy+STntOMj6sxJF6zpV2UNFzGwxIkH2sIuBUpbGcjMnck= =Ngtc -----END PGP SIGNATURE----- Merge tag 'dmaengine-fix-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine Pull dmaengine fixes from Vinod Koul: - TI driver fix to set EOP for cyclic BCDMA transfers - sh rz-dmac driver fix for handling config with zero address * tag 'dmaengine-fix-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine: dmaengine: ti: k3-udma: Set EOP for all TRs in cyclic BCDMA transfer dmaengine: sh: rz-dmac: handle configs where one address is zero |
||
|
Linus Torvalds
|
886b7e80ab |
Driver core revert fix for 6.12-rc6
Here is a single driver core revert for 6.12-rc6. It reverts a change that came in -rc1 that was supposed to resolve a reported problem, but caused another one, so revert it for now so that we can get this all worked out properly in 6.13. The revert has been in linux-next all week with no reported issues. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -----BEGIN PGP SIGNATURE----- iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCZydlNw8cZ3JlZ0Brcm9h aC5jb20ACgkQMUfUDdst+ymZQACdGsXkF7ULnB66l3v6+tRov2nNwV8AnAldVvEY 14YCtM4i/bYhoQElLsOB =TFSg -----END PGP SIGNATURE----- Merge tag 'driver-core-6.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core revert from Greg KH: "Here is a single driver core revert for 6.12-rc6. It reverts a change that came in -rc1 that was supposed to resolve a reported problem, but caused another one, so revert it for now so that we can get this all worked out properly in 6.13. The revert has been in linux-next all week with no reported issues" * tag 'driver-core-6.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: Revert "driver core: Fix uevent_show() vs driver detach race" |
||
|
Linus Torvalds
|
be5bfa1378 |
USB / Thunderbolt fixes for 6.12-rc6
Here are some small USB and Thunderbolt driver fixes for 6.12-rc6 that have been sitting in my tree this week. Included in here are the following: - thunderbolt driver fixes for reported issues - USB typec driver fixes - xhci driver fixes for reported problems - dwc2 driver revert for a broken change - usb phy driver fix - usbip tool fix All of these have been in linux-next this week with no reported issues. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -----BEGIN PGP SIGNATURE----- iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCZydklw8cZ3JlZ0Brcm9h aC5jb20ACgkQMUfUDdst+ynrOQCgvUxfi1tUPR78CDuIR1fiaNxdsDsAoI+WwyFt 5U2D3ezAl3ovyRVWlN4y =DSxw -----END PGP SIGNATURE----- Merge tag 'usb-6.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB / Thunderbolt fixes from Greg KH: "Here are some small USB and Thunderbolt driver fixes for 6.12-rc6 that have been sitting in my tree this week. Included in here are the following: - thunderbolt driver fixes for reported issues - USB typec driver fixes - xhci driver fixes for reported problems - dwc2 driver revert for a broken change - usb phy driver fix - usbip tool fix All of these have been in linux-next this week with no reported issues" * tag 'usb-6.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: usb: typec: tcpm: restrict SNK_WAIT_CAPABILITIES_TIMEOUT transitions to non self-powered devices usb: phy: Fix API devm_usb_put_phy() can not release the phy usb: typec: use cleanup facility for 'altmodes_node' usb: typec: fix unreleased fwnode_handle in typec_port_register_altmodes() usb: typec: qcom-pmic-typec: fix missing fwnode removal in error path usb: typec: qcom-pmic-typec: use fwnode_handle_put() to release fwnodes usb: acpi: fix boot hang due to early incorrect 'tunneled' USB3 device links Revert "usb: dwc2: Skip clock gating on Broadcom SoCs" xhci: Fix Link TRB DMA in command ring stopped completion event xhci: Use pm_runtime_get to prevent RPM on unsupported systems usbip: tools: Fix detach_port() invalid port error path thunderbolt: Honor TMU requirements in the domain when setting TMU mode thunderbolt: Fix KASAN reported stack out-of-bounds read in tb_retimer_scan() |
||
|
Yu Zhao
|
1d4832becd |
mm: multi-gen LRU: use {ptep,pmdp}_clear_young_notify()
When the MM_WALK capability is enabled, memory that is mostly accessed by
a VM appears younger than it really is, therefore this memory will be less
likely to be evicted. Therefore, the presence of a running VM can
significantly increase swap-outs for non-VM memory, regressing the
performance for the rest of the system.
Fix this regression by always calling {ptep,pmdp}_clear_young_notify()
whenever we clear the young bits on PMDs/PTEs.
[jthoughton@google.com: fix link-time error]
Link: https://lkml.kernel.org/r/20241019012940.3656292-3-jthoughton@google.com
Fixes:
|
||
|
Yu Zhao
|
ddd6d8e975 |
mm: multi-gen LRU: remove MM_LEAF_OLD and MM_NONLEAF_TOTAL stats
Patch series "mm: multi-gen LRU: Have secondary MMUs participate in
MM_WALK".
Today, the MM_WALK capability causes MGLRU to clear the young bit from
PMDs and PTEs during the page table walk before eviction, but MGLRU does
not call the clear_young() MMU notifier in this case. By not calling this
notifier, the MM walk takes less time/CPU, but it causes pages that are
accessed mostly through KVM / secondary MMUs to appear younger than they
should be.
We do call the clear_young() notifier today, but only when attempting to
evict the page, so we end up clearing young/accessed information less
frequently for secondary MMUs than for mm PTEs, and therefore they appear
younger and are less likely to be evicted. Therefore, memory that is
*not* being accessed mostly by KVM will be evicted *more* frequently,
worsening performance.
ChromeOS observed a tab-open latency regression when enabling MGLRU with a
setup that involved running a VM:
Tab-open latency histogram (ms)
Version p50 mean p95 p99 max
base 1315 1198 2347 3454 10319
mglru 2559 1311 7399 12060 43758
fix 1119 926 2470 4211 6947
This series replaces the final non-selftest patchs from this series[1],
which introduced a similar change (and a new MMU notifier) with KVM
optimizations. I'll send a separate series (to Sean and Paolo) for the
KVM optimizations.
This series also makes proactive reclaim with MGLRU possible for KVM
memory. I have verified that this functions correctly with the selftest
from [1], but given that that test is a KVM selftest, I'll send it with
the rest of the KVM optimizations later. Andrew, let me know if you'd
like to take the test now anyway.
[1]: https://lore.kernel.org/linux-mm/20240926013506.860253-18-jthoughton@google.com/
This patch (of 2):
The removed stats, MM_LEAF_OLD and MM_NONLEAF_TOTAL, are not very helpful
and become more complicated to properly compute when adding
test/clear_young() notifiers in MGLRU's mm walk.
Link: https://lkml.kernel.org/r/20241019012940.3656292-1-jthoughton@google.com
Link: https://lkml.kernel.org/r/20241019012940.3656292-2-jthoughton@google.com
Fixes:
|
||
|
Linus Torvalds
|
32cfb3c48e |
Char/Misc/IIO driver fixes for 6.12-rc6
Here are some small char/misc/iio fixes for 6.12-rc6 that resolves some
reported issues. Included in here are the following:
- small IIO driver fixes for many reported issues
- mei driver fix for a suddenly much reported issue for an "old"
issue.
- MAINTAINERS update for a developer who has moved companies and
forgot to update their old entry.
All of these have been in linux-next this week with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-6.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull misc driver fixes from Greg KH:
"Here are some small char/misc/iio fixes for 6.12-rc6 that resolve
some reported issues. Included in here are the following:
- small IIO driver fixes for many reported issues
- mei driver fix for a suddenly much reported issue for an "old"
issue.
- MAINTAINERS update for a developer who has moved companies and
forgot to update their old entry.
All of these have been in linux-next this week with no reported
issues"
* tag 'char-misc-6.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
mei: use kvmalloc for read buffer
MAINTAINERS: add netup_unidvb maintainer
iio: dac: Kconfig: Fix build error for ltc2664
iio: adc: ad7124: fix division by zero in ad7124_set_channel_odr()
staging: iio: frequency: ad9832: fix division by zero in ad9832_calc_freqreg()
docs: iio: ad7380: fix supply for ad7380-4
iio: adc: ad7380: fix supplies for ad7380-4
iio: adc: ad7380: add missing supplies
iio: adc: ad7380: use devm_regulator_get_enable_read_voltage()
dt-bindings: iio: adc: ad7380: fix ad7380-4 reference supply
iio: light: veml6030: fix microlux value calculation
iio: gts-helper: Fix memory leaks for the error path of iio_gts_build_avail_scale_table()
iio: gts-helper: Fix memory leaks in iio_gts_build_avail_scale_table()
|
||
|
Linus Torvalds
|
295ba6501d |
Input updates for v6.12-rc5
- a fix for regression in input core introduced in 6.11 preventing re-registering input handlers - a fix for adp5588-keys driver tyring to disable interrupt 0 at suspend when devices is used without interrupt - a fix for edt-ft5x06 to stop leaking regmap structure when probing fails and to make sure it is not released too early on removal. -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQST2eWILY88ieB2DOtAj56VGEWXnAUCZycQwgAKCRBAj56VGEWX nFgtAQDxuWplL+cwA5f3g+/Rq38faHBY5ebmsC9G/QnBZs4hTQD/dL04tU9NwvNq GYw4MYRNaDIeY8vyq21Y+dQe0uL0rAM= =xAeU -----END PGP SIGNATURE----- Merge tag 'input-for-v6.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull input fixes from Dmitry Torokhov: - a fix for regression in input core introduced in 6.11 preventing re-registering input handlers - a fix for adp5588-keys driver tyring to disable interrupt 0 at suspend when devices is used without interrupt - a fix for edt-ft5x06 to stop leaking regmap structure when probing fails and to make sure it is not released too early on removal. * tag 'input-for-v6.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: fix regression when re-registering input handlers Input: adp5588-keys - do not try to disable interrupt 0 Input: edt-ft5x06 - fix regmap leak when probe fails |
||
|
Linus Torvalds
|
a33ab3f94f |
Kbuild fixes for v6.12 (2nd)
- Fix a memory leak in modpost - Resolve build issues when cross-compiling RPM and Debian packages - Fix another regression in Kconfig - Fix incorrect MODULE_ALIAS() output in modpost -----BEGIN PGP SIGNATURE----- iQJJBAABCgAzFiEEbmPs18K1szRHjPqEPYsBB53g2wYFAmcnmigVHG1hc2FoaXJv eUBrZXJuZWwub3JnAAoJED2LAQed4NsGClEP/1H6H3VPp3s5AYE1elWXXZH4c42Q PLJQhNOBFWIaEIbaK/eCMd24vUQl/pb3b80MkeE7XILuQxzeQYIHQ7X1+iYsgDFV 96wzNP2Z7GpI1JzldWndAKSVMtfIiQHkFhZIwErJRVwDvFyH9ro0Smso5HnwfVql ycsGZE4jfTMrMwgobj4WtgOgdBQb6c04w4MCcxgX3f4Zk4YyTlDzLWQMvSWklWVd k9mW3T1JSTl5zvHlDK7kuosdXYrUtONleNbiYyxDRFUfKhPeJkiSq5ia/F83VhLL Fh7xRNIF7Em9Mzs42if/uuOW2ouq6JuePHFhdf+0rQIyxDFcTIOHojozrYkBPQEb MjO/JDLrll2ydfz4Lvreu0JoV3kPW58pM9Re29fYUPTmrtYeZWKS6TS2VfzOEEUs Z4xMn1oQuRDR7tnEB2OdPTkaYzlALtMXMyl4/MK6pQ4EiToFth7Syb4W0ILnp1SA Dn27yEqIlrWP12B5OceJNzN4QmNySodnFu+K1acSRxCIKAJyfbcF2FTuZuZx5B8P 6fPHIdYBSOUWSJGDGEqLxLPgcp9zcXLA3MNIx9Lk97m0F5AxLXA+0HCwx7t4KZH9 fHjcaGJS6LR5Y5bVcu/a7W+MVB3o8+vy6tsnciiBI70MJn0ywqHhDns3Tu+pMP5C Rgx1M1GGTOvBWnI2 =QPqn -----END PGP SIGNATURE----- Merge tag 'kbuild-fixes-v6.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild Pull Kbuild fixes from Masahiro Yamada: - Fix a memory leak in modpost - Resolve build issues when cross-compiling RPM and Debian packages - Fix another regression in Kconfig - Fix incorrect MODULE_ALIAS() output in modpost * tag 'kbuild-fixes-v6.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: modpost: fix input MODULE_DEVICE_TABLE() built for 64-bit on 32-bit host modpost: fix acpi MODULE_DEVICE_TABLE built with mismatched endianness kconfig: show sub-menu entries even if the prompt is hidden kbuild: deb-pkg: add pkg.linux-upstream.nokerneldbg build profile kbuild: deb-pkg: add pkg.linux-upstream.nokernelheaders build profile kbuild: rpm-pkg: disable kernel-devel package when cross-compiling sumversion: Fix a memory leak in get_src_version() |
||
|
Linus Torvalds
|
b9021de3ec |
A trivial compile test fix for x86
When CONFIG_AMD_NB is not set a COMPILE_TEST of an AMD specific driver fails due to a missing inline stub. Add the stub to cure it. -----BEGIN PGP SIGNATURE----- iQJHBAABCgAxFiEEQp8+kY+LLUocC4bMphj1TA10mKEFAmcnUG0THHRnbHhAbGlu dXRyb25peC5kZQAKCRCmGPVMDXSYoZJIEAC2Sqi7PQs6gK7kR/vfgi5F0uq1nHgV XyPt11mc50sQ6j/IrDAMafD4PzS0v1gu/1mN4u9riiC3qYZDt9FizUuXVGMQzh7h QuwgSSKicBX3ZncUP8BiI7fveeC0XScE4dGe++bUKplkyKJgFTMzl77pkQduRDj9 sMtq9y0tyGAE1v40aHdvQPOhOS4UvMKeyHh7oty/SaXkfE9MsuJQYX83jSDcMekA AjqfLzUC/zPFwnPsBCclm1rgiCofGpeQStmRmoH+g5zGY0MeEqmYG1e6xAAJq0Kn KEvAesjY4a7DDYvoS67QIi/hdywSrZQbgulqC+9o1kOZUkgYXZaNF8XVyYdXB/wy 10FmHNHs82Z8XbNrw7x44jdk+R2WrjOxCUbt9dmGsEU9aetAMrLs0s7I0DTEZRSZ gbp6kVjvJa9SQGuSVnqWX81AjZ4gGiyEvnf2eZXU00JZiCIiH/fuYpxpkAJ784Ui BQL2CGU2cyy0ApOAzP7iRQXRmAp7ZVhdTyrGTkTnoeW2QvvTQdA+6E2oP9twy8YQ tfxKDub/wMWu4USGYoX90IQBRP7k09GfitYvfvxmq8AKD8bYPW7axfr7oqVQB3bf vEjQwx0hnbQ16y6KDNID4YAWebwYhws53ZKb6bF0pMKo+dZjiU/FeB+4R9ivNrDI 3UeuwFL+YSL7wA== =p6Lo -----END PGP SIGNATURE----- Merge tag 'x86-urgent-2024-11-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fix from Thomas Gleixner: "A trivial compile test fix for x86: When CONFIG_AMD_NB is not set a COMPILE_TEST of an AMD specific driver fails due to a missing inline stub. Add the stub to cure it" * tag 'x86-urgent-2024-11-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/amd_nb: Fix compile-testing without CONFIG_AMD_NB |
||
|
Linus Torvalds
|
b019b4a670 |
A single fix for posix CPU timers
When a thread is cloned, the posix CPU timers are not inherited. If the parent has a CPU timer armed the corresponding tick dependency in the tasks tick_dep_mask is set and copied to the new thread, which means the new thread and all decendants will prevent the system to go into full NOHZ operation. Clear the tick dependency mask in copy_process() to fix this. -----BEGIN PGP SIGNATURE----- iQJHBAABCgAxFiEEQp8+kY+LLUocC4bMphj1TA10mKEFAmcnT/oTHHRnbHhAbGlu dXRyb25peC5kZQAKCRCmGPVMDXSYoZw5D/0bqjjMYiE0ws8nuuXN1gL2T1wt6P2C 2zzEKnk6nsxnGbMfFs7XifDkqSOHNVro7F6kCkz6cH4U/VSK6R2nNONbufz4mNWk 6uDvdlZps30ekmxN+C3fB6S/4MNVOhXFFXjsQhT/PxX/CfibVP5fATLtcRLq9Lfx mV3nnxKTHPjDGz2/2QRyYpA3G1fzOj/l2QeJsVAIC8GxCo7drLVe0yn5Yt+13zhU JMjgt9ox4PKFsjaXrqvt1yKNTtb+evjYSIVXxIg60oxUkfva6XFLXJv3rjbARUNj aqBHfkZ1/d2Hwc0WexDZfvhNWeCqnfUA+db7ALSYICbNd37EVxWVZA2TwfkkWKSt RDq3xX6NJSd71h0lxDvzv7Ph3NUq23rq3LycAkjqfhiFjPQmE6axtnioXcR5mtVp q9tilB/3I4zj4BIYPfd9KowkdclRSK+B3Oo0DTyuVhKLggF0UD3poDxT4HxnBCFB uKDV8GDsoD8Ksjsl0/X/D4oorqLYAT0tG9gxMw1Kii16gijhhu5qeqTWY+qs9ieg 2J+Ku83QLQgljvy2s7y0AnMZMxaeKN5YMs6zNV+yGAoTFyft3CnBMKalPHfOCI0A fdKHi2aKm+lLrp/UIG2Yw9N1xfcrGWA2moH+9dw6zTyAei+TInP+WYndI7VR5EDf 3KvW3OoRf0sywA== =83r/ -----END PGP SIGNATURE----- Merge tag 'timers-urgent-2024-11-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull timer fix from Thomas Gleixner: "A single fix for posix CPU timers. When a thread is cloned, the posix CPU timers are not inherited. If the parent has a CPU timer armed the corresponding tick dependency in the tasks tick_dep_mask is set and copied to the new thread, which means the new thread and all decendants will prevent the system to go into full NOHZ operation. Clear the tick dependency mask in copy_process() to fix this" * tag 'timers-urgent-2024-11-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: posix-cpu-timers: Clear TICK_DEP_BIT_POSIX_TIMER on clone |
||
|
Linus Torvalds
|
33e83ffe4c |
A few scheduler fixes:
- Plug a race between pick_next_task_fair() and try_to_wake_up() where
both try to write to the same task, even though both paths hold a
runqueue lock, but obviously from different runqueues.
The problem is that the store to task::on_rq in __block_task() is
visible to try_to_wake_up() which assumes that the task is not queued.
Both sides then operate on the same task.
Cure it by rearranging __block_task() so the the store to task::on_rq is
the last operation on the task.
- Prevent a potential NULL pointer dereference in task_numa_work()
task_numa_work() iterates the VMAs of a process. A concurrent unmap of
the address space can result in a NULL pointer return from vma_next()
which is unchecked.
Add the missing NULL pointer check to prevent this.
- Operate on the correct scheduler policy in task_should_scx()
task_should_scx() returns true when a task should be handled by sched
EXT. It checks the tasks scheduling policy.
This fails when the check is done before a policy has been set.
Cure it by handing the policy into task_should_scx() so it operates
on the requested value.
- Add the missing handling of sched EXT in the delayed dequeue
mechanism. This was simply forgotten.
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Merge tag 'sched-urgent-2024-11-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fixes from Thomas Gleixner:
- Plug a race between pick_next_task_fair() and try_to_wake_up() where
both try to write to the same task, even though both paths hold a
runqueue lock, but obviously from different runqueues.
The problem is that the store to task::on_rq in __block_task() is
visible to try_to_wake_up() which assumes that the task is not
queued. Both sides then operate on the same task.
Cure it by rearranging __block_task() so the the store to task::on_rq
is the last operation on the task.
- Prevent a potential NULL pointer dereference in task_numa_work()
task_numa_work() iterates the VMAs of a process. A concurrent unmap
of the address space can result in a NULL pointer return from
vma_next() which is unchecked.
Add the missing NULL pointer check to prevent this.
- Operate on the correct scheduler policy in task_should_scx()
task_should_scx() returns true when a task should be handled by sched
EXT. It checks the tasks scheduling policy.
This fails when the check is done before a policy has been set.
Cure it by handing the policy into task_should_scx() so it operates
on the requested value.
- Add the missing handling of sched EXT in the delayed dequeue
mechanism. This was simply forgotten.
* tag 'sched-urgent-2024-11-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/ext: Fix scx vs sched_delayed
sched: Pass correct scheduling policy to __setscheduler_class
sched/numa: Fix the potential null pointer dereference in task_numa_work()
sched: Fix pick_next_task_fair() vs try_to_wake_up() race
|
||
|
Linus Torvalds
|
68f05b251b |
A single fix for perf:
perf_event_clear_cpumask() uses list_for_each_entry_rcu() without being in a RCU read side critical section, which triggers a "suspicious RCU usage" warning. It turns out that the list walk does not be RCU protected because the write side lock is held in this contxt. Change it to a regular list walk. -----BEGIN PGP SIGNATURE----- iQJHBAABCgAxFiEEQp8+kY+LLUocC4bMphj1TA10mKEFAmcnSfoTHHRnbHhAbGlu dXRyb25peC5kZQAKCRCmGPVMDXSYoVERD/0fMj1Y79mC2DoAB9XBy6d7xumHbDlN Jt4v3Hq0oADjqrGAro/XDbAm9y7gK9b5BhV2UH4ehvJj+WeesGRikV26Fdh3WuWo aTyNTh7PxsMoNRqIWWBiGbumHya9+INZKyKFAMD/WtQ3Av2emws0nnm9uv+eJzVZ zr1+NiofUDsu1I04E6zVXBra3aLqIbsWg5NOCsJAdW/9AKE+GQMA0/aw14Z2ftqH Mry4PqW4aGcTnCRNtoaHHwbP4677ZXX6pQnbUTGYZ4ywJJFKQ54YH1mUqUUP6cOo GWg20gVK4PTkJSt2nL/I+i1RVq7Ipw725e540XEAFDsDVj5jy/rJbmrmyUys6sr7 Xu6cXbjAs/kV/A9TB1wBsb+iMUnHTNbRWMS1d8bsxaUWSIe9wouDJHAIumCMr3B3 qALdXxHqppPZuccMFWHyxAClJEY8YEp9+n32BMpePASLhv3JBJHOUSn8HWr+GIgC N4slnJvLevETlO0HcQ3IUifwqfQBJ6O0Kyu0IXmrb3aCV9TzrbE1iZDgv6HbZBVP FsUaMBB/se24R/4zxSsH+u7yLFcgEJKVWVzngXzNoUvRX8xF4um6x1y89049Q0CC iGdRq3/fV/b/Tp7wvEuIxCr0GPUi28OCZTwjESmluUIS6ZSd83oDajBXix725hk+ 1YIwANTHMeBadQ== =qlTN -----END PGP SIGNATURE----- Merge tag 'perf-urgent-2024-11-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf fix from Thomas Gleixner: "perf_event_clear_cpumask() uses list_for_each_entry_rcu() without being in a RCU read side critical section, which triggers a 'suspicious RCU usage' warning. It turns out that the list walk does not be RCU protected because the write side lock is held in this context. Change it to a regular list walk" * tag 'perf-urgent-2024-11-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf: Fix missing RCU reader protection in perf_event_clear_cpumask() |
||
|
Linus Torvalds
|
8f0b844adc |
Two fixes for the interrupt subsystem:
- Fix an off-by-one error in the failure path of msi_domain_alloc(),
which causes the cleanup loop to terminate early and leaking the first
allocated interrupt.
- Handle a corner case in GIC-V4 versus a lazily mapped Virtual
Processing Element (VPE). If the VPE has not been mapped because the
guest has not yet emitted a mapping command, then the set_affinity()
callback returns an error code, which causes the vCPU management to fail.
Return success in this case without touching the hardware. This will be
done later when the guest issues the mapping command.
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Merge tag 'irq-urgent-2024-11-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fixes from Thomas Gleixner:
- Fix an off-by-one error in the failure path of msi_domain_alloc(),
which causes the cleanup loop to terminate early and leaking the
first allocated interrupt.
- Handle a corner case in GIC-V4 versus a lazily mapped Virtual
Processing Element (VPE). If the VPE has not been mapped because the
guest has not yet emitted a mapping command, then the set_affinity()
callback returns an error code, which causes the vCPU management to
fail.
Return success in this case without touching the hardware. This will
be done later when the guest issues the mapping command.
* tag 'irq-urgent-2024-11-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip/gic-v4: Correctly deal with set_affinity on lazily-mapped VPEs
genirq/msi: Fix off-by-one error in msi_domain_alloc()
|
||
|
Masahiro Yamada
|
77dc55a978 |
modpost: fix input MODULE_DEVICE_TABLE() built for 64-bit on 32-bit host
When building a 64-bit kernel on a 32-bit build host, incorrect
input MODULE_ALIAS() entries may be generated.
For example, when compiling a 64-bit kernel with CONFIG_INPUT_MOUSEDEV=m
on a 64-bit build machine, you will get the correct output:
$ grep MODULE_ALIAS drivers/input/mousedev.mod.c
MODULE_ALIAS("input:b*v*p*e*-e*1,*2,*k*110,*r*0,*1,*a*m*l*s*f*w*");
MODULE_ALIAS("input:b*v*p*e*-e*1,*2,*k*r*8,*a*m*l*s*f*w*");
MODULE_ALIAS("input:b*v*p*e*-e*1,*3,*k*14A,*r*a*0,*1,*m*l*s*f*w*");
MODULE_ALIAS("input:b*v*p*e*-e*1,*3,*k*145,*r*a*0,*1,*18,*1C,*m*l*s*f*w*");
MODULE_ALIAS("input:b*v*p*e*-e*1,*3,*k*110,*r*a*0,*1,*m*l*s*f*w*");
However, building the same kernel on a 32-bit machine results in
incorrect output:
$ grep MODULE_ALIAS drivers/input/mousedev.mod.c
MODULE_ALIAS("input:b*v*p*e*-e*1,*2,*k*110,*130,*r*0,*1,*a*m*l*s*f*w*");
MODULE_ALIAS("input:b*v*p*e*-e*1,*2,*k*r*8,*a*m*l*s*f*w*");
MODULE_ALIAS("input:b*v*p*e*-e*1,*3,*k*14A,*16A,*r*a*0,*1,*20,*21,*m*l*s*f*w*");
MODULE_ALIAS("input:b*v*p*e*-e*1,*3,*k*145,*165,*r*a*0,*1,*18,*1C,*20,*21,*38,*3C,*m*l*s*f*w*");
MODULE_ALIAS("input:b*v*p*e*-e*1,*3,*k*110,*130,*r*a*0,*1,*20,*21,*m*l*s*f*w*");
A similar issue occurs with CONFIG_INPUT_JOYDEV=m. On a 64-bit build
machine, the output is:
$ grep MODULE_ALIAS drivers/input/joydev.mod.c
MODULE_ALIAS("input:b*v*p*e*-e*3,*k*r*a*0,*m*l*s*f*w*");
MODULE_ALIAS("input:b*v*p*e*-e*3,*k*r*a*2,*m*l*s*f*w*");
MODULE_ALIAS("input:b*v*p*e*-e*3,*k*r*a*8,*m*l*s*f*w*");
MODULE_ALIAS("input:b*v*p*e*-e*3,*k*r*a*6,*m*l*s*f*w*");
MODULE_ALIAS("input:b*v*p*e*-e*1,*k*120,*r*a*m*l*s*f*w*");
MODULE_ALIAS("input:b*v*p*e*-e*1,*k*130,*r*a*m*l*s*f*w*");
MODULE_ALIAS("input:b*v*p*e*-e*1,*k*2C0,*r*a*m*l*s*f*w*");
However, on a 32-bit machine, the output is incorrect:
$ grep MODULE_ALIAS drivers/input/joydev.mod.c
MODULE_ALIAS("input:b*v*p*e*-e*3,*k*r*a*0,*20,*m*l*s*f*w*");
MODULE_ALIAS("input:b*v*p*e*-e*3,*k*r*a*2,*22,*m*l*s*f*w*");
MODULE_ALIAS("input:b*v*p*e*-e*3,*k*r*a*8,*28,*m*l*s*f*w*");
MODULE_ALIAS("input:b*v*p*e*-e*3,*k*r*a*6,*26,*m*l*s*f*w*");
MODULE_ALIAS("input:b*v*p*e*-e*1,*k*11F,*13F,*r*a*m*l*s*f*w*");
MODULE_ALIAS("input:b*v*p*e*-e*1,*k*11F,*13F,*r*a*m*l*s*f*w*");
MODULE_ALIAS("input:b*v*p*e*-e*1,*k*2C0,*2E0,*r*a*m*l*s*f*w*");
When building a 64-bit kernel, BITS_PER_LONG is defined as 64. However,
on a 32-bit build machine, the constant 1L is a signed 32-bit value.
Left-shifting it beyond 32 bits causes wraparound, and shifting by 31
or 63 bits makes it a negative value.
The fix in commit
|
||
|
Masahiro Yamada
|
2e766a1f5f |
modpost: fix acpi MODULE_DEVICE_TABLE built with mismatched endianness
When CONFIG_SATA_AHCI_PLATFORM=m, modpost outputs incorect acpi
MODULE_ALIAS() if the endianness of the target and the build machine
do not match.
When the endianness of the target kernel and the build machine match,
the output is correct:
$ grep 'MODULE_ALIAS("acpi' drivers/ata/ahci_platform.mod.c
MODULE_ALIAS("acpi*:APMC0D33:*");
MODULE_ALIAS("acpi*:010601:*");
However, when building a little-endian kernel on a big-endian machine
(or vice versa), the output is incorrect:
$ grep 'MODULE_ALIAS("acpi' drivers/ata/ahci_platform.mod.c
MODULE_ALIAS("acpi*:APMC0D33:*");
MODULE_ALIAS("acpi*:0601??:*");
The 'cls' and 'cls_msk' fields are 32-bit.
DEF_FIELD() must be used instead of DEF_FIELD_ADDR() to correctly handle
endianness of these 32-bit fields.
The check 'if (cls)' was unnecessary; it never became NULL, as it was
the pointer to 'symval' plus the offset to the 'cls' field.
Fixes:
|
||
|
Dmitry Torokhov
|
071b24b54d |
Input: fix regression when re-registering input handlers
Commit |
||
|
Linus Torvalds
|
3e5e6c9900 |
nfsd-6.12 fixes:
- Fix two async COPY bugs found during NFS bake-a-thon - Fix an svcrdma memory leak -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEKLLlsBKG3yQ88j7+M2qzM29mf5cFAmcmT5wACgkQM2qzM29m f5coUg/9FQMf1IeXhyGlDtV0ELUxkHoXaZ2T6zhfXFoLmyl/DU4AWMH4YbSAqk2M NnR47sVsM08tIwE3KYQgYzLbbFF41nQUa1sckeel+nYGtpcN6IwOlU5LYYpNNFeQ vsECxV78BA6FGdjaXwQ07r4G6lpVhCCqM/RZpDrwNSyoIWVLo77KBUVCSoQb5wzG z7OBvO9M7HfVJVOHcPd+tVcZaGAF0fhW812fibZQKV2mrWdhOOe+gWVs8ro3tmm1 GocbTTQW2hlYcLCZPe1przTI9flfwon6Lk8TmIZuU5IrzcaAB+U3P140aKgl9427 v4WdLuKYlKi+xISBdRG3omyaLroNUs8IHW4KoBXAW3FinyLzNsAyoPxb02m7SEge sOJ/gbeLtb2u+ur4wAp4gDmVKfg3TGyh05Hdt96LXsbQUuWIlwEcPurl+nY93Eoq vrPLIdPOXrOD5jBIaVQkBYlaCn04mDg+VTNbG9hW1wjorVFpWKS7MwCjVloXSVIn uE++cVpQtIKp8aTYBbFVXqtVREatczl++f+Npnlm8xlcquDbaORkk4ZBOs4vQuHo pNuZcWO0rIBR6hakr44OjTLnJBIwChPBYvBVgtq1E6oAbwHvC2SVXbiJB8IcCPOx nB2jnF0/tpTs2LnrHAxdAGdU9Om6RGmahfz/uwh/8djdbCVH+Ik= =NiQh -----END PGP SIGNATURE----- Merge tag 'nfsd-6.12-3' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux Pull nfsd fixes from Chuck Lever: - Fix two async COPY bugs found during NFS bake-a-thon - Fix an svcrdma memory leak * tag 'nfsd-6.12-3' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux: rpcrdma: Always release the rpcrdma_device's xa_array NFSD: Never decrement pending_async_copies on error NFSD: Initialize struct nfsd4_copy earlier |
||
|
Linus Torvalds
|
f6a7b4ec74 |
XFS bug fies for 6.12-rc6
* fix a sysbot reported crash on filestreams * Reduce cpu time spent searching for extents in a very fragmented FS * Check for delayed allocations before setting extsize Signed-off-by: Carlos Maiolino <cem@kernel.org> -----BEGIN PGP SIGNATURE----- iJUEABMJAB0WIQQMHYkcUKcy4GgPe2RGdaER5QtfpgUCZyIMDwAKCRBGdaER5Qtf pllxAYCkk+mtDTD5xBfOVGZWO5MMFz8HqYcro5wrSCzgL8HDmW29kXTBYFviGn3R 3l/H6BEBgOk0EkI5qGOzijpzbsWyJeLzPzZtxQFPD8zFBdxSERCtbpqFDLLvLQWG M+TLhUNkPQ== =kKX4 -----END PGP SIGNATURE----- Merge tag 'xfs-6.12-fixes-6' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux Pull xfs fixes from Carlos Maiolino: - fix a sysbot reported crash on filestreams - Reduce cpu time spent searching for extents in a very fragmented FS - Check for delayed allocations before setting extsize * tag 'xfs-6.12-fixes-6' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: xfs: streamline xfs_filestream_pick_ag xfs: fix finding a last resort AG in xfs_filestream_pick_ag xfs: Reduce unnecessary searches when searching for the best extents xfs: Check for delayed allocations before setting extsize |
||
|
Linus Torvalds
|
11066801dd |
linux_kselftest-fixes-6.12-rc6
Kselftest fixes for Linux 6.12-rc6 - fix syntax error in frequency calculation arithmetic expression in intel_pstate run.sh - add missing cpupower dependency check intel_pstate run.sh - fix idmap_mount_tree_invalid test failure due to incorrect argument - fix watchdog-test run leaving the watchdog timer enabled causing system reboot. With this fix, the test disables the watchdog timer when it gets terminated with SIGTERM, SIGKILL, and SIGQUIT in addition to SIGINT -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEPZKym/RZuOCGeA/kCwJExA0NQxwFAmclRvcACgkQCwJExA0N Qxxapg//cyUd4ZHBtXV4Wh9C4GOkB57GO7svmwW1F/vxk7GEmoGUDlHL/EobRtbf CK6oHCu98xKe1dL6rkEg4VTc+tiV4Ew7b7iwT3zs6PO1FkiuEwsjDTAugLTIyg1m 1xwkbn5XPA1GopKVf/8JxUiCnpti0L9AhFG3JKYEoZ6DxhrLXLYL2/z61emv3Wgy zRe5SQ51deOIFSxODurDidWzXoNPBjI6Q5pWhpp3Zs+jj2aPZcPn8bjoR34t6Vpa Cqg/OZxCMblkpjANc9PBTOHtqtQUpJD0vQtkHtDMQCZ4lHKcjuszlzwCKXMTwTFI hhCN4WWdPDHHS43y7YyQDp9tacjsDygdD9X625JyO2kKX2BbAPpaRcv4ij8r6MH8 hubtFXUpSMHJQVfOdvd9YjAxBAQBwLOnzdjwRSe3NHN3XNdt3S4rePGP7xXvYbly StAMbrVpf5vwIv356z8O8JcRjJcrJhEL9mIwvIG0reVwxdJq3r7531EPiLxTIs8e U+fO88DDQViKsVzxBUz44ILDwTp4NUOVi0vr5VnZAxd5ahPuq067mnhm7T+7ijXd VgvVS1Rnfc7pQ5LSf7nCGoJrJwxfTZsnwLPydtbYzgzLQg9xfHE7sUSneGG4klvn gMYfdQSYOYhaPbOcCepdoGi/4gRmGSvN8hEZ0w/qyOqmz4yAW8A= =vl/l -----END PGP SIGNATURE----- Merge tag 'linux_kselftest-fixes-6.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull Kselftest fixes from Shuah Khan: - fix syntax error in frequency calculation arithmetic expression in intel_pstate run.sh - add missing cpupower dependency check intel_pstate run.sh - fix idmap_mount_tree_invalid test failure due to incorrect argument - fix watchdog-test run leaving the watchdog timer enabled causing system reboot. With this fix, the test disables the watchdog timer when it gets terminated with SIGTERM, SIGKILL, and SIGQUIT in addition to SIGINT * tag 'linux_kselftest-fixes-6.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: selftests/watchdog-test: Fix system accidentally reset after watchdog-test selftests/intel_pstate: check if cpupower is installed selftests/intel_pstate: fix operand expected error selftests/mount_setattr: fix idmap_mount_tree_invalid failed to run |
||
|
Linus Torvalds
|
f7292c0934 |
Rust fixes for v6.12 (3nd)
Toolchain and infrastructure:
- Avoid build errors with old 'rustc's without LLVM patch version
(important since it impacts people that do not even enable Rust).
- Update LLVM version for 'HAVE_CFI_ICALL_NORMALIZE_INTEGERS' in
'depends on' condition (the fix was eventually backported rather than
land in LLVM 19).
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Merge tag 'rust-fixes-6.12-3' of https://github.com/Rust-for-Linux/linux
Pull rust fixes from Miguel Ojeda:
"Toolchain and infrastructure:
- Avoid build errors with old 'rustc's without LLVM patch version
(important since it impacts people that do not even enable Rust)
- Update LLVM version for 'HAVE_CFI_ICALL_NORMALIZE_INTEGERS' in
'depends on' condition (the fix was eventually backported rather
than land in LLVM 19)"
* tag 'rust-fixes-6.12-3' of https://github.com/Rust-for-Linux/linux:
cfi: tweak llvm version for HAVE_CFI_ICALL_NORMALIZE_INTEGERS
kbuild: rust: avoid errors with old `rustc`s without LLVM patch version
|
||
|
Linus Torvalds
|
05b92660cd |
pci-v6.12-fixes-2
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||
|
Linus Torvalds
|
269ce3bd62 |
drm fixes for 6.12-rc6
xe: - Fix missing HPD interrupt enabling, bringing one PM refactor with it - Workaround LNL GGTT invalidation not being visible to GuC - Avoid getting jobs stuck without a protecting timeout ivpu: - Fix firewall IRQ handling panthor: - Fix firmware initialization wrt page sizes - Fix handling and reporting of dead job groups sched: - Guarantee forward progress via WC_MEM_RECLAIM tests: - Fix memory leak in drm_display_mode_from_cea_vic() amdgpu: - DCN 3.5 fix - Vangogh SMU KASAN fix - SMU 13 profile reporting fix mediatek: - Fix degradation problem of alpha blending - Fix color format MACROs in OVL - Fix get efuse issue for MT8188 DPTX - Fix potential NULL dereference in mtk_crtc_destroy() - Correct dpi power-domains property - Add split subschema property constraints -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEEKbZHaGwW9KfbeusDHTzWXnEhr4FAmclJX4ACgkQDHTzWXnE hr7rEw/9E+zpgUW52ThBDpdE4A2O0qdSUd8LtQJbkgx+Us85Hv2p9e+HOhQqrKMj 9O4pwh47oI4vbk3uL68EQTkmmqBUbLNRhfTnps/kVPiMQLklzl3cUw7Jdq2/1E0r Nyh+kJFsHXFcHwB2lB2Cy+ATT8Vw28WlWni7y3hZZvzCrbOVSN16bXmTbjQ/vQYR TSIwJF9P9h+P96JMBXdGhZx3eyiMOqd5EfeLcR9fKRdQsY4ZVk+9Q5CKS/pyKfXP A9e+MHrHf7fSlFT3zptXZ9l4CLo6QGxGppYy79h8hp1oLPFmm1jnWFfDPdFSa/qm +ZTPncf0fz5m4YmJZFTcS+69ITQDjON6FBOu3fnoGuLG8+31/G+/1+uvrNxOID0T zbRcJCPPtdSpDRWsl5+29HviHTvhniM+zYZIaYl1LrCDxMAqoUjAB3dRZKgKHXmF KW7kILXe33m82X7V+jVuELp4m4Q062CIa5tTvDDJ3iPRFKc4HAIioD33g1DPLRPy +A1iwvC0EoghID6eTxVnncQO1snlgXeS4begUtx2E/LkkIH3TbtStM5aaz7tHgNT LTTk2YsGr+5JQQ8N1ci1clZUfSD9xgFlDwobUBGMg2Lo+tVEKhHp8c1Q3quCt214 7PMmNOQXr243vmcs7gvl19pfy0HZRBdISabRazFYCYhiwCsvZQE= =U58l -----END PGP SIGNATURE----- Merge tag 'drm-fixes-2024-11-02' of https://gitlab.freedesktop.org/drm/kernel Pull drm fixes from Dave Airlie: "Regular fixes pull, nothing too out of the ordinary, the mediatek fixes came in a batch that I might have preferred a bit earlier but all seem fine, otherwise regular xe/amdgpu and a few misc ones. xe: - Fix missing HPD interrupt enabling, bringing one PM refactor with it - Workaround LNL GGTT invalidation not being visible to GuC - Avoid getting jobs stuck without a protecting timeout ivpu: - Fix firewall IRQ handling panthor: - Fix firmware initialization wrt page sizes - Fix handling and reporting of dead job groups sched: - Guarantee forward progress via WC_MEM_RECLAIM tests: - Fix memory leak in drm_display_mode_from_cea_vic() amdgpu: - DCN 3.5 fix - Vangogh SMU KASAN fix - SMU 13 profile reporting fix mediatek: - Fix degradation problem of alpha blending - Fix color format MACROs in OVL - Fix get efuse issue for MT8188 DPTX - Fix potential NULL dereference in mtk_crtc_destroy() - Correct dpi power-domains property - Add split subschema property constraints" * tag 'drm-fixes-2024-11-02' of https://gitlab.freedesktop.org/drm/kernel: (27 commits) drm/xe: Don't short circuit TDR on jobs not started drm/xe: Add mmio read before GGTT invalidate drm/tests: hdmi: Fix memory leaks in drm_display_mode_from_cea_vic() drm/connector: hdmi: Fix memory leak in drm_display_mode_from_cea_vic() drm/tests: helpers: Add helper for drm_display_mode_from_cea_vic() drm/panthor: Report group as timedout when we fail to properly suspend drm/panthor: Fail job creation when the group is dead drm/panthor: Fix firmware initialization on systems with a page size > 4k accel/ivpu: Fix NOC firewall interrupt handling drm/xe/display: Add missing HPD interrupt enabling during non-d3cold RPM resume drm/xe/display: Separate the d3cold and non-d3cold runtime PM handling drm/xe: Remove runtime argument from display s/r functions drm/amdgpu/smu13: fix profile reporting drm/amd/pm: Vangogh: Fix kernel memory out of bounds write Revert "drm/amd/display: update DML2 policy EnhancedPrefetchScheduleAccelerationFinal DCN35" drm/sched: Mark scheduler work queues with WQ_MEM_RECLAIM drm/tegra: Fix NULL vs IS_ERR() check in probe() dt-bindings: display: mediatek: split: add subschema property constraints dt-bindings: display: mediatek: dpi: correct power-domains property drm/mediatek: Fix potential NULL dereference in mtk_crtc_destroy() ... |
||
|
Linus Torvalds
|
b1966a1fd2 |
cxl fixes for v6.12-rc6
- Fix crashes when running with cxl-test code - Fix Trace DRAM Event Record field decodes - Fix module/built in initialization order errors - Fix use after free on decoder shutdowns - Fix out of order decoder allocations - Improve cxl-test to better reflect real world systems -----BEGIN PGP SIGNATURE----- iIoEABYKADIWIQSgX9xt+GwmrJEQ+euebuN7TNx1MQUCZyUaZhQcaXJhLndlaW55 QGludGVsLmNvbQAKCRCebuN7TNx1MRHmAP40P0fHjUxtA3FxxPiJLOouUUEfMzyr z2hstFw6gh1CNgEA4a4cOyDSe41ptqGFRIHfPeay7l8MdYtFV3iiYeDPnAA= =awb7 -----END PGP SIGNATURE----- Merge tag 'cxl-fixes-6.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl Pull cxl fixes from Ira Weiny: "The bulk of these fixes center around an initialization order bug reported by Gregory Price and some additional fall out from the debugging effort. In summary, cxl_acpi and cxl_mem race and previously worked because of a bus_rescan_devices() while testing without modules built in. Unfortunately with modules built in the rescan would fail due to the cxl_port driver being registered late via the build order. Furthermore it was found bus_rescan_devices() did not guarantee a probe barrier which CXL was expecting. Additional fixes to cxl-test and decoder allocation came along as they were found in this debugging effort. The other fixes are pretty minor but one affects trace point data seen by user space. Summary: - Fix crashes when running with cxl-test code - Fix Trace DRAM Event Record field decodes - Fix module/built in initialization order errors - Fix use after free on decoder shutdowns - Fix out of order decoder allocations - Improve cxl-test to better reflect real world systems" * tag 'cxl-fixes-6.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl: cxl/test: Improve init-order fidelity relative to real-world systems cxl/port: Prevent out-of-order decoder allocation cxl/port: Fix use-after-free, permit out-of-order decoder shutdown cxl/acpi: Ensure ports ready at cxl_acpi_probe() return cxl/port: Fix cxl_bus_rescan() vs bus_rescan_devices() cxl/port: Fix CXL port initialization order when the subsystem is built-in cxl/events: Fix Trace DRAM Event Record cxl/core: Return error when cxl_endpoint_gather_bandwidth() handles a non-PCI device |
||
|
Linus Torvalds
|
f4a1e8e369 |
block-6.12-20241101
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Merge tag 'block-6.12-20241101' of git://git.kernel.dk/linux
Pull block fixes from Jens Axboe:
- Fixup for a recent blk_rq_map_user_bvec() patch
- NVMe pull request via Keith:
- Spec compliant identification fix (Keith)
- Module parameter to enable backward compatibility on unusual
namespace formats (Keith)
- Target double free fix when using keys (Vitaliy)
- Passthrough command error handling fix (Keith)
* tag 'block-6.12-20241101' of git://git.kernel.dk/linux:
nvme: re-fix error-handling for io_uring nvme-passthrough
nvmet-auth: assign dh_key to NULL after kfree_sensitive
nvme: module parameter to disable pi with offsets
block: fix queue limits checks in blk_rq_map_user_bvec for real
nvme: enhance cns version checking
|
||
|
Linus Torvalds
|
f0d3699aef |
io_uring-6.12-20241101
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||
|
Linus Torvalds
|
c426456857 |
ACPI fix for 6.12-rc6
Make the ACPI CPPC library use a raw spinlock for operations carried out in scheduler context via the schedutil governor and the ACPI CPPC cpufreq driver (Pierre Gondois). -----BEGIN PGP SIGNATURE----- iQJGBAABCAAwFiEE4fcc61cGeeHD/fCwgsRv/nhiVHEFAmclHlESHHJqd0Byand5 c29ja2kubmV0AAoJEILEb/54YlRxkasQAKKLQlbVhzb/JZvd56VpJH6Ma0ImuXvX uyqhO3gjiCdSx1pxLakaBXM4J887Mtsx5hfy7WrsbUEkEUJqkrwScJee4zjcCH2k tWai3Q7YJsqDg4/7Pq8T9uFNEue9ZvWAOuQ/wV8kBPSIuQKCQ59d83eosQyOnSYE Avaa78URdnszOXmn3a9chzIUD4HWCmF+/v1D+Bw/HR1vqrdoBnlaRfq9PUsWSjUe 91CP0HI5I6brKipJgjxv/joxXqKCmvnSkBnD+sk8OyR9kASk8j1TKn1YZDoiNY0x bQI5NlOVm+Sx1RTMQCDY1y2EsmIvVYtxHTkPm87dy/q6xyXkwAKBXkfaogsn7fgb IbHQrpWnenQP/M49Iqwq0BVelX9jVaWPLtCMYA9nsrYsgUlCH/0rlQ9rcKcP0uhn qIbkUt40AyrYmVFon2D+upa7ccqFpfVX/9LljwFujxSwNVGA0tAl52GTQ6+jLWfE bOOq8dIJdra03T1IDpmgq/GK3RlYHDZVt/QsaZ2SYBZgh9wl4A65tX97++tsP0Re ytZES41uPqmuN4gmR+/T6RL3tb/c7N/7R5Zk/o51kFMFP0DCuOP6GO7JLPAgkRj+ e/6zq+eaIcSuDzYCfzh66zlcOexj4EucjImKe/AC1VJSF5qgK98QJlAqn1jbfonk 09ErkHWNwjNl =vxLs -----END PGP SIGNATURE----- Merge tag 'acpi-6.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull ACPI fix from Rafael Wysocki: "Make the ACPI CPPC library use a raw spinlock for operations carried out in scheduler context via the schedutil governor and the ACPI CPPC cpufreq driver (Pierre Gondois)" * tag 'acpi-6.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI: CPPC: Make rmw_lock a raw_spin_lock |
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Linus Torvalds
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edf0227abd |
gpio fixes for v6.12-rc6
- fix an issue with using an uninitialized variable in GPIO swnode code - add a missing return value check for devm_mutex_init() - fix an old issue with debugfs output -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEFp3rbAvDxGAT0sefEacuoBRx13IFAmck2KYACgkQEacuoBRx 13I0NRAAxbK12fXpuVqLmIrCQxkvjH8hZk12217FSnq/dCA9sZkT2qIrAx1QwEHz dgiIIPDhPMxcZ9xqVJ77ljdG9AovToN4XSzW7Q6gauRLTO9q4UwZ+whgB8DXiRXB hr9K4bZ/Mwz67N564F5KI3lBdSRsW4if+V7jK56pDefkOmxDDUNTROkuuHbu08+q O/eTlUpxGUZPw4ro10knyyDT5TTQtRj1sGxWEJPDnBVQ2DYnacjZHTBeV7LnKlqR BlZTNshiYSHGRdK6L31yHeekOvrr9QH02DTfNd/WeuUxOV/Qa89F+P+juI47wgKt ny5/A/3JQYbFVRt7mfDvV4E1+f1DosbMCWRgpYyPoqqMxdKtovVTLicKz27wn8rv tj/kFsy4pMnSD8g4+j6+2YirPH4NQzn5UU4paIGduuSXDpywOxsT57UbwAyhfocG VwSogSWRlILYDWzE3wNf0M04ZkcWeEekBo1/SICF3ZMGrYdB+zmiob7OtpFa//t8 ptm4lhBnsNfu79d2WF5w0Z+8bsxaYghCKsEYkLUL4fw3OTRAAeJuaAxLWxjfaoCL wfQYfxOlFiqUqf/pGTFprFFUIsQGCX0ipKYdptinGaLb8+KVSgaJn7VYT3DDBBn5 pNIUqkfK61a8e0KVtCOQkHbVukIkZ+iIgtLlxuBgDcySpiAygFQ= =JPa8 -----END PGP SIGNATURE----- Merge tag 'gpio-fixes-for-v6.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux Pull gpio fixes from Bartosz Golaszewski: - fix an uninitialized variable in GPIO swnode code - add a missing return value check for devm_mutex_init() - fix an old issue with debugfs output * tag 'gpio-fixes-for-v6.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: gpiolib: fix debugfs dangling chip separator gpiolib: fix debugfs newline separators gpio: sloppy-logic-analyzer: Check for error code from devm_mutex_init() call gpio: fix uninit-value in swnode_find_gpio |
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Dave Airlie
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f99c7cca2f |
Driver Changes:
- Fix missing HPD interrupt enabling, bringing one PM refactor with it (Imre / Maarten) - Workaround LNL GGTT invalidation not being visible to GuC (Matthew Brost) - Avoid getting jobs stuck without a protecting timeout (Matthew Brost) -----BEGIN PGP SIGNATURE----- iQJNBAABCAA3FiEE6rM8lpABPHM5FqyDm6KlpjDL6lMFAmckr1wZHGx1Y2FzLmRl bWFyY2hpQGludGVsLmNvbQAKCRCboqWmMMvqU5mUD/9ldyPILkvMvGT6yEBf7HWJ HwEs8oqUkN/NDxOXySrkiVPESLB9PH/SWo6YW7L0X7DkFq1rEEB6eWbEu4ZQ6Oef Q9wwx3XZ2oZwi5A/oa2mT9mvxN53vRVgEaKtPxej42N6zVcbtJgre9sfqa8MwF5u HNHP8tcKZNf8i+kzIEPrz33wLRH+Ecvkbp1k2E//cSHIWcsaq9ZmG8pnH7x8X/91 fo0uLpTKhSJZzs5QygxnQ3X9BgIDgHpCu0mlTcmHBsH4wPr3u2uSdQ2cT97zZyiT 7fATg/QdgwXH8lsmnbzPj0LjQd+AK4eLS3nD1PKzBN3+/5ZVy6ZVol6K41qUDNSC Tzzgo4/NOVfcRdyiWe6Elj07Snent8gtNGGphp1vAtUns8kGcJw3gDcOpX3cYHxa u+DQP7zasWwPAF2lqwApMHFZGe/zoH3w7zUZYCmGP4IImC3VM8NBaM4No6VNIvco +08yJUFBifS/4qYISYCwO9H7Dt+10WDxHrzF6w6sA89dL4mBf4fGvcfnxE33NuWn RIhfQ+WLC/vIzRwbOGmvAhbG4Owxjsacq7RQOUc1azJ66cCPCQCNfVGx6qf5Q23A 0KbDoQXVlegKOz7z5m/ORXQO6A/Ien2VABLn0t0bjmoP7S57UFfiENn2P0c+UeNZ GJUi4QS5Ssdjq/DK6awoRw== =kIfk -----END PGP SIGNATURE----- Merge tag 'drm-xe-fixes-2024-10-31' of https://gitlab.freedesktop.org/drm/xe/kernel into drm-fixes Driver Changes: - Fix missing HPD interrupt enabling, bringing one PM refactor with it (Imre / Maarten) - Workaround LNL GGTT invalidation not being visible to GuC (Matthew Brost) - Avoid getting jobs stuck without a protecting timeout (Matthew Brost) Signed-off-by: Dave Airlie <airlied@redhat.com> From: Lucas De Marchi <lucas.demarchi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/tsbftadm7owyizzdaqnqu7u4tqggxgeqeztlfvmj5fryxlfomi@5m5bfv2zvzmw |
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Linus Torvalds
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a031e15404 |
RISC-V Fixes for 6.11-rc6
* A fix that avoids accessing the early boot ACPI tables via unsafe memory attributes, which can result in incorrect ACPI table data appearing. This can cause all sorts of bad behavior. * A fix to avoid compiler-insert library calls in the VDSO. * GCC+Rust builds have been disabled, to avoid issues related to ISA string mismatched between the GCC and LLVM Rust implementations. * The NX flag is now set in the EFI PE/COFF headers, which is necessary for some distro GRUB versions to boot images. * A fix to avoid leaking DT node reference counts on ACPI systems during cache info parsing. * CPU numbers are now printed as unsigned values during hotplug. * A pair of build fixes for usused macros, which can trigger warnings on some configurations. -----BEGIN PGP SIGNATURE----- iQJHBAABCAAxFiEEKzw3R0RoQ7JKlDp6LhMZ81+7GIkFAmck63wTHHBhbG1lckBk YWJiZWx0LmNvbQAKCRAuExnzX7sYiZiID/4kBXBpJ3vAt3xmu7tlt/Y29EICJeMs aVZTHtH89K3VhN9M3F6a+loJquKyg7mhDoz5diEiJ5yzRPlrXzqhPePlilQD+Akz P33B/2jHNv7xs/wZ6e0GOSF0J5baIWBnL2rJ43daGXfj+Qw4RvQEN2yt2+GxqJq7 vXeLQRC4RLfRjKPMMC3sT4ihNsDzFuOUYQG9kAHo6sJy8+N6NqXx3IOEh8z6qZmF 8RpWCrxxIwZJKWm0d47NrHPn/ztXdHcrKbANND3/5uye7WNEt++o5Kc6nCuxp5mo R1M+OoonTBMLXzeqZ9SSDpTywHYlrXmzl3IAyrbO2XYm+4sERN7AV1FwS9AzgiF4 b1pe5LnwWRzZstcnmgSQylU31gSTeswGi25jd+zMJIdZLreEUim3eIE2Hp3sh1ys YGtkDqW3VLGnJKGlvmfM2m4iFhYNTMj2GEuIymFyECa4Kv3qiMPsbPmZLHKvTYaq 3II4oCx4wdYHiBbV3FvCdp6QkJjr6VdqC2dIYuNE/06mNhN+1ccZ60z/llL39wda EWFEK5R5RES2DHmGEz0mhMRcqBilEWhdi4+S1Wi/E06dtGBJpcsTkLXfzCWbYGxw 4l2K91jDMV/EiuG57dX2CfuavgThhGyOeLxgId+17n28CYPNExy8BKprZjDI0p2L 4mzwbcP/KcO3XA== =sqa0 -----END PGP SIGNATURE----- Merge tag 'riscv-for-linus-6.11-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux Pull RISC-V fixes from Palmer Dabbelt: - Avoid accessing the early boot ACPI tables via unsafe memory attributes, which can result in incorrect ACPI table data appearing. This can cause all sorts of bad behavior. - Avoid compiler-inserted library calls in the VDSO. - GCC+Rust builds have been disabled, to avoid issues related to ISA string mismatched between the GCC and LLVM Rust implementations. - The NX flag is now set in the EFI PE/COFF headers, which is necessary for some distro GRUB versions to boot images. - A fix to avoid leaking DT node reference counts on ACPI systems during cache info parsing. - CPU numbers are now printed as unsigned values during hotplug. - A pair of build fixes for usused macros, which can trigger warnings on some configurations. * tag 'riscv-for-linus-6.11-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: riscv: Remove duplicated GET_RM riscv: Remove unused GENERATING_ASM_OFFSETS riscv: Use '%u' to format the output of 'cpu' riscv: Prevent a bad reference count on CPU nodes riscv: efi: Set NX compat flag in PE/COFF header RISC-V: disallow gcc + rust builds riscv: Do not use fortify in early code RISC-V: ACPI: fix early_ioremap to early_memremap riscv: vdso: Prevent the compiler from inserting calls to memset() |
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Linus Torvalds
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3dfffd506e |
arm64 fixes for -rc6
- Fix handling of POR_EL0 during signal delivery so that pushing the
signal context doesn't fail based on the pkey configuration of the
interrupted context and align our user-visible behaviour with that of
x86.
- Fix a bogus pointer being passed to the CPU hotplug code from the
Arm SDEI driver.
- Re-enable software tag-based KASAN with GCC by using an alternative
implementation of '__no_sanitize_address'.
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Will Deacon:
"The important one is a change to the way in which we handle protection
keys around signal delivery so that we're more closely aligned with
the x86 behaviour, however there is also a revert of the previous fix
to disable software tag-based KASAN with GCC, since a workaround
materialised shortly afterwards.
I'd love to say we're done with 6.12, but we're aware of some
longstanding fpsimd register corruption issues that we're almost at
the bottom of resolving.
Summary:
- Fix handling of POR_EL0 during signal delivery so that pushing the
signal context doesn't fail based on the pkey configuration of the
interrupted context and align our user-visible behaviour with that
of x86.
- Fix a bogus pointer being passed to the CPU hotplug code from the
Arm SDEI driver.
- Re-enable software tag-based KASAN with GCC by using an alternative
implementation of '__no_sanitize_address'"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: signal: Improve POR_EL0 handling to avoid uaccess failures
firmware: arm_sdei: Fix the input parameter of cpuhp_remove_state()
Revert "kasan: Disable Software Tag-Based KASAN with GCC"
kasan: Fix Software Tag-Based KASAN with GCC
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