Tejun Heo 88f1c87de1 locking/lockdep: Avoid triggering hardlockup from debug_show_all_locks() ...

debug_show_all_locks() iterates all tasks and print held locks whole
holding tasklist_lock.  This can take a while on a slow console device
and may end up triggering NMI hardlockup detector if someone else ends
up waiting for tasklist_lock.

Touch the NMI watchdog while printing the held locks to avoid
spuriously triggering the hardlockup detector.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: kernel-team@fb.com
Link: http://lkml.kernel.org/r/20180122220055.GB1771050@devbig577.frc2.facebook.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>

2018-01-24 10:00:09 +01:00

..

lockdep_internals.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

lockdep_proc.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

lockdep_states.h

locking/lockdep: Rework FS_RECLAIM annotation

2017-08-10 12:29:03 +02:00

lockdep.c

locking/lockdep: Avoid triggering hardlockup from debug_show_all_locks()

2018-01-24 10:00:09 +01:00

locktorture.c

…

Makefile

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

mcs_spinlock.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

mutex-debug.c

…

mutex-debug.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

mutex.c

mutex, futex: adjust kernel-doc markups to generate ReST

2017-05-16 08:43:25 -03:00

mutex.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

osq_lock.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

percpu-rwsem.c

…

qrwlock.c

locking/qrwlock: Prevent slowpath writers getting held up by fastpath

2017-10-25 10:57:25 +02:00

qspinlock_paravirt.h

locking/pvqspinlock: Implement hybrid PV queued/unfair locks

2017-11-08 10:10:04 +01:00

qspinlock_stat.h

…

qspinlock.c

locking: Remove spin_unlock_wait() generic definitions

2017-08-17 08:08:58 -07:00

rtmutex_common.h

futex: Avoid violating the 10th rule of futex

2018-01-14 18:49:16 +01:00

rtmutex-debug.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

rtmutex-debug.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

rtmutex.c

futex: Avoid violating the 10th rule of futex

2018-01-14 18:49:16 +01:00

rtmutex.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

rwsem-spinlock.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

rwsem-xadd.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

rwsem.c

Merge branch 'linus' into locking/core, to resolve conflicts

2017-11-07 10:32:44 +01:00

rwsem.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

semaphore.c

…

spinlock_debug.c

…

spinlock.c

locking/core: Remove break_lock field when CONFIG_GENERIC_LOCKBREAK=y

2017-12-12 11:24:01 +01:00

test-ww_mutex.c

mm: treewide: remove GFP_TEMPORARY allocation flag

2017-09-13 18:53:16 -07:00