Eric W. Biederman b9a985db98 pid_ns: Sleep in TASK_INTERRUPTIBLE in zap_pid_ns_processes ...

The code can potentially sleep for an indefinite amount of time in
zap_pid_ns_processes triggering the hung task timeout, and increasing
the system average.  This is undesirable.  Sleep with a task state of
TASK_INTERRUPTIBLE instead of TASK_UNINTERRUPTIBLE to remove these
undesirable side effects.

Apparently under heavy load this has been allowing Chrome to trigger
the hung time task timeout error and cause ChromeOS to reboot.

Reported-by: Vovo Yang <vovoy@google.com>
Reported-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Fixes: 6347e9009104 ("pidns: guarantee that the pidns init will be the last pidns process reaped")
Cc: stable@vger.kernel.org
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>

2017-05-13 17:26:01 -05:00

..

bpf

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

2017-05-09 15:42:31 -07:00

cgroup

Merge branch 'for-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup

2017-05-01 13:52:24 -07:00

configs

config: android-base: enable hardened usercopy and kernel ASLR

2017-02-27 18:43:46 -08:00

debug

sched/headers: Prepare for new header dependencies before moving code to <linux/sched/debug.h>

2017-03-02 08:42:34 +01:00

events

perf/callchain: Force USER_DS when invoking perf_callchain_user()

2017-05-10 07:54:00 +02:00

gcov

gcov: support GCC 7.1

2017-05-12 15:57:15 -07:00

irq

pci-v4.12-changes

2017-05-08 19:03:25 -07:00

livepatch

Merge branches 'for-4.12/upstream' and 'for-4.12/klp-hybrid-consistency-model' into for-linus

2017-05-01 21:49:28 +02:00

locking

Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2017-05-10 10:30:46 -07:00

power

More power management updates for v4.12-rc1

2017-05-10 09:12:30 -07:00

printk

TTY/Serial patches for 4.12-rc1

2017-05-08 18:49:23 -07:00

rcu

Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2017-05-10 10:30:46 -07:00

sched

Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2017-05-10 10:30:46 -07:00

time

time: delete current_fs_time()

2017-05-12 15:57:15 -07:00

trace

This is a trivial patch that changes a check for a cpumask from a NULL

2017-05-10 11:26:25 -07:00

.gitignore

certs: add .gitignore to stop git nagging about x509_certificate_list

2015-10-21 15:18:35 +01:00

acct.c

sched/headers: Prepare to move cputime functionality from <linux/sched.h> into <linux/sched/cputime.h>

2017-03-02 08:42:39 +01:00

async.c

async: export current_is_async()

2015-11-19 17:51:48 +01:00

audit_fsnotify.c

Merge branch 'fsnotify' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs

2017-05-03 11:05:15 -07:00

audit_tree.c

Merge branch 'fsnotify' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs

2017-05-03 11:05:15 -07:00

audit_watch.c

Merge branch 'fsnotify' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs

2017-05-03 11:05:15 -07:00

audit.c

Merge branch 'stable-4.12' of git://git.infradead.org/users/pcmoore/audit

2017-05-03 09:21:59 -07:00

audit.h

audit: Use timespec64 to represent audit timestamps

2017-05-02 10:16:05 -04:00

auditfilter.c

audit: kernel generated netlink traffic should have a portid of 0

2017-05-02 10:16:05 -04:00

auditsc.c

Merge branch 'fsnotify' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs

2017-05-03 11:05:15 -07:00

backtracetest.c

…

bounds.c

…

capability.c

capability: export has_capability

2017-01-12 07:01:56 -07:00

compat.c

time: Change k_clock nsleep() to use timespec64

2017-04-14 21:49:56 +02:00

configs.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

context_tracking.c

context_tracking: Switch to new static_branch API

2015-11-24 09:56:43 +01:00

cpu_pm.c

kernel/cpu_pm: fix cpu_cluster_pm_exit comment

2015-09-03 02:42:20 +02:00

cpu.c

Merge branch 'linus' into locking/core, to pick up fixes

2017-04-14 10:29:40 +02:00

crash_core.c

ia64: reuse append_elf_note() and final_note() functions

2017-05-08 17:15:11 -07:00

crash_dump.c

…

cred.c

sched/headers: Prepare for new header dependencies before moving code to <linux/sched/coredump.h>

2017-03-02 08:42:28 +01:00

delayacct.c

sched/headers: Prepare to move cputime functionality from <linux/sched.h> into <linux/sched/cputime.h>

2017-03-02 08:42:39 +01:00

dma.c

…

elfcore.c

…

exec_domain.c

…

exit.c

userfaultfd: non-cooperative: rollback userfaultfd_exit

2017-03-09 17:01:09 -08:00

extable.c

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next

2017-02-22 10:15:09 -08:00

fork.c

Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2017-05-12 10:41:45 -07:00

freezer.c

freezer, oom: check TIF_MEMDIE on the correct task

2016-07-28 16:07:41 -07:00

futex_compat.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

futex.c

futex: Clarify mark_wake_futex memory barrier usage

2017-04-15 16:03:46 +02:00

groups.c

mm, vmalloc: use __GFP_HIGHMEM implicitly

2017-05-08 17:15:13 -07:00

hung_task.c

kernel/hung_task.c: defer showing held locks

2017-05-08 17:15:10 -07:00

irq_work.c

treewide: Remove old email address

2015-11-23 09:44:58 +01:00

jump_label.c

This release has no new tracing features, just clean ups, minor fixes

2017-02-27 13:26:17 -08:00

kallsyms.c

bpf: make jited programs visible in traces

2017-02-17 13:40:05 -05:00

kcmp.c

ptrace: use fsuid, fsgid, effective creds for fs access checks

2016-01-20 17:09:18 -08:00

Kconfig.freezer

…

Kconfig.hz

…

Kconfig.locks

locking/mutex: Allow MUTEX_SPIN_ON_OWNER when DEBUG_MUTEXES

2016-10-25 11:31:51 +02:00

Kconfig.preempt

…

kcov.c

kcov: simplify interrupt check

2017-05-08 17:15:12 -07:00

kexec_core.c

ia64: reuse append_elf_note() and final_note() functions

2017-05-08 17:15:11 -07:00

kexec_file.c

kexec, x86/purgatory: Unbreak it and clean it up

2017-03-10 20:55:09 +01:00

kexec_internal.h

kexec, x86/purgatory: Unbreak it and clean it up

2017-03-10 20:55:09 +01:00

kexec.c

kexec: allow architectures to override boot mapping

2016-08-02 19:35:27 -04:00

kmod.c

sched/headers, vfs/execve: Prepare to move the do_execve*() prototypes from <linux/sched.h> to <linux/binfmts.h>

2017-03-02 08:42:39 +01:00

kprobes.c

powerpc updates for 4.12 part 1.

2017-05-05 11:36:44 -07:00

ksysfs.c

crash: move crashkernel parsing and vmcore related code under CONFIG_CRASH_CORE

2017-05-08 17:15:11 -07:00

kthread.c

cgroup, kthread: close race window where new kthreads can be migrated to non-root cgroups

2017-03-17 10:18:47 -04:00

latencytop.c

sched/headers: Prepare to move sched_info_on() and force_schedstat_enabled() from <linux/sched.h> to <linux/sched/stat.h>

2017-03-02 08:42:39 +01:00

Makefile

crash: move crashkernel parsing and vmcore related code under CONFIG_CRASH_CORE

2017-05-08 17:15:11 -07:00

membarrier.c

Fix: Disable sys_membarrier when nohz_full is enabled

2017-01-23 11:32:16 -08:00

memremap.c

mm, zone_device: Replace {get, put}_zone_device_page() with a single reference to fix pmem crash

2017-05-01 09:15:53 +02:00

module_signing.c

KEYS: Move the point of trust determination to __key_link()

2016-04-11 22:43:43 +01:00

module-internal.h

…

module.c

kernel/module.c: use set_memory.h header

2017-05-08 17:15:14 -07:00

notifier.c

kernel/notifier.c: simplify expression

2017-02-24 17:46:56 -08:00

nsproxy.c

perf: Add PERF_RECORD_NAMESPACES to include namespaces related info

2017-03-13 15:57:41 -03:00

padata.c

padata: get_next is never NULL

2017-04-21 20:30:46 +08:00

panic.c

sched/headers: Prepare for new header dependencies before moving code to <linux/sched/debug.h>

2017-03-02 08:42:34 +01:00

params.c

boot/param: Move next_arg() function to lib/cmdline.c for later reuse

2017-04-18 10:37:13 +02:00

pid_namespace.c

pid_ns: Sleep in TASK_INTERRUPTIBLE in zap_pid_ns_processes

2017-05-13 17:26:01 -05:00

pid.c

pidns: disable pid allocation if pid_ns_prepare_proc() is failed in alloc_pid()

2017-05-08 17:15:12 -07:00

profile.c

sched/headers: Prepare to move sched_info_on() and force_schedstat_enabled() from <linux/sched.h> to <linux/sched/stat.h>

2017-03-02 08:42:39 +01:00

ptrace.c

ptrace: fix PTRACE_LISTEN race corrupting task->state

2017-04-08 00:47:48 -07:00

range.c

…

reboot.c

kexec: split kexec_load syscall from kexec core code

2015-09-10 13:29:01 -07:00

relay.c

Merge branch 'work.splice' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2017-05-02 11:38:06 -07:00

resource.c

/proc/iomem: only expose physical resource addresses to privileged users

2016-04-14 12:56:09 -07:00

seccomp.c

sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task_stack.h>

2017-03-02 08:42:36 +01:00

signal.c

Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2017-05-10 10:30:46 -07:00

smp.c

sched/headers: Prepare for new header dependencies before moving code to <linux/sched/idle.h>

2017-03-02 08:42:26 +01:00

smpboot.c

sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task.h>

2017-03-02 08:42:35 +01:00

smpboot.h

cpu/hotplug: Create hotplug threads

2016-03-01 20:36:56 +01:00

softirq.c

sched/core: Remove 'task' parameter and rename tsk_restore_flags() to current_restore_flags()

2017-04-11 09:06:32 +02:00

stacktrace.c

stacktrace/x86: add function for detecting reliable stack traces

2017-03-08 09:18:02 +01:00

stop_machine.c

locking/core, stop_machine: Yield the CPU during stop machine()

2016-11-16 10:15:09 +01:00

sys_ni.c

move aio compat to fs/aio.c

2016-12-22 22:58:37 -05:00

sys.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace

2017-05-05 11:08:43 -07:00

sysctl_binary.c

net: Remove NET_CORE_BUDGET_USECS from sysctl binary interface.

2017-04-21 15:59:52 -04:00

sysctl.c

proc/sysctl: fix the int overflow for jiffies conversion

2017-05-08 17:15:10 -07:00

task_work.c

task_work: use READ_ONCE/lockless_dereference, avoid pi_lock if !task_works

2016-08-02 19:35:02 -04:00

taskstats.c

taskstats: add e/u/stime for TGID command

2017-05-08 17:15:12 -07:00

test_kprobes.c

…

torture.c

sched/headers: Prepare for new header dependencies before moving code to <linux/sched/clock.h>

2017-03-02 08:42:27 +01:00

tracepoint.c

sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task.h>

2017-03-02 08:42:35 +01:00

tsacct.c

sched/headers: Prepare to move cputime functionality from <linux/sched.h> into <linux/sched/cputime.h>

2017-03-02 08:42:39 +01:00

ucount.c

ucount: Remove the atomicity from ucount->count

2017-03-06 15:26:37 -06:00

uid16.c

sched/headers: Prepare to remove <linux/cred.h> inclusion from <linux/sched.h>

2017-03-02 08:42:31 +01:00

up.c

smp: Add function to execute a function synchronously on a CPU

2016-09-05 13:52:39 +02:00

user_namespace.c

sched/headers: Prepare for new header dependencies before moving code to <linux/sched/signal.h>

2017-03-02 08:42:29 +01:00

user-return-notifier.c

…

user.c

sched/headers: Prepare for new header dependencies before moving code to <linux/sched/user.h>

2017-03-02 08:42:29 +01:00

utsname_sysctl.c

sched/headers: Remove <linux/rwsem.h> from <linux/sched.h>

2017-03-03 01:45:36 +01:00

utsname.c

sched/headers: Prepare to move the task_lock()/unlock() APIs to <linux/sched/task.h>

2017-03-02 08:42:38 +01:00

watchdog_hld.c

sched/headers: Prepare for new header dependencies before moving code to <linux/sched/debug.h>

2017-03-02 08:42:34 +01:00

watchdog.c

sched/headers: Prepare for new header dependencies before moving code to <linux/sched/debug.h>

2017-03-02 08:42:34 +01:00

workqueue_internal.h

sched/core: Get rid of 'cpu' argument in wq_worker_sleeping()

2016-03-02 10:28:47 -05:00

workqueue.c

Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2017-05-01 19:12:53 -07:00