Kernel/linux-next
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git synced 2025-01-10 07:50:04 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity
linux-next/arch
History
Andy Lutomirski 15a416e8aa x86/entry: Treat BUG/WARN as NMI-like entries 
BUG/WARN are cleverly optimized using UD2 to handle the BUG/WARN out of
line in an exception fixup.

But if BUG or WARN is issued in a funny RCU context, then the
idtentry_enter...() path might helpfully WARN that the RCU context is
invalid, which results in infinite recursion.

Split the BUG/WARN handling into an nmi_enter()/nmi_exit() path in
exc_invalid_op() to increase the chance to survive the experience.

[ tglx: Make the declaration match the implementation ]

Signed-off-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/f8fe40e0088749734b4435b554f73eee53dcf7a8.1591932307.git.luto@kernel.org
2020-06-12 12:12:57 +02:00
..
alpha
mmap locking API: convert mmap_sem API comments
2020-06-09 09:39:14 -07:00
arc
mmap locking API: convert mmap_sem comments
2020-06-09 09:39:14 -07:00
arm
Merge branch 'rwonce/rework' of git://git.kernel.org/pub/scm/linux/kernel/git/will/linux
2020-06-10 14:46:54 -07:00
arm64
locking/atomics: Flip fallbacks and instrumentation
2020-06-11 08:03:24 +02:00
c6x
This time around we have 4 lines of diff in the core framework, removing a
2020-06-10 11:42:19 -07:00
csky
mmap locking API: use coccinelle to convert mmap_sem rwsem call sites
2020-06-09 09:39:14 -07:00
h8300
This time around we have 4 lines of diff in the core framework, removing a
2020-06-10 11:42:19 -07:00
hexagon
mmap locking API: use coccinelle to convert mmap_sem rwsem call sites
2020-06-09 09:39:14 -07:00
ia64
mmap locking API: convert mmap_sem comments
2020-06-09 09:39:14 -07:00
m68k
This time around we have 4 lines of diff in the core framework, removing a
2020-06-10 11:42:19 -07:00
microblaze
mmap locking API: convert mmap_sem comments
2020-06-09 09:39:14 -07:00
mips
This time around we have 4 lines of diff in the core framework, removing a
2020-06-10 11:42:19 -07:00
nds32
mmap locking API: convert mmap_sem comments
2020-06-09 09:39:14 -07:00
nios2
mmap locking API: convert mmap_sem API comments
2020-06-09 09:39:14 -07:00
openrisc
mmap locking API: convert mmap_sem API comments
2020-06-09 09:39:14 -07:00
parisc
maccess: always use strict semantics for probe_kernel_read
2020-06-09 09:39:15 -07:00
powerpc
arch/powerpc/mm/pgtable.c: another missed conversion
2020-06-10 14:44:46 -07:00
riscv
mmap locking API: convert mmap_sem comments
2020-06-09 09:39:14 -07:00
s390
mmap locking API: convert mmap_sem comments
2020-06-09 09:39:14 -07:00
sh
This time around we have 4 lines of diff in the core framework, removing a
2020-06-10 11:42:19 -07:00
sparc
arch/sparc/mm/srmmu.c: fix build
2020-06-10 10:35:28 -07:00
um
This pull request contains the following changes for UML:
2020-06-10 13:25:40 -07:00
unicore32
This time around we have 4 lines of diff in the core framework, removing a
2020-06-10 11:42:19 -07:00
x86
x86/entry: Treat BUG/WARN as NMI-like entries
2020-06-12 12:12:57 +02:00
xtensa
mmap locking API: convert mmap_sem API comments
2020-06-09 09:39:14 -07:00
.gitignore
.gitignore: add SPDX License Identifier
2020-03-25 11:50:48 +01:00
Kconfig
This time around we have 4 lines of diff in the core framework, removing a
2020-06-10 11:42:19 -07:00