diff options
| author | Zqiang <[email protected]> | 2021-05-06 18:03:40 -0700 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2021-05-06 19:24:12 -0700 |
| commit | 78564b9434878d686c5f88c4488b20cccbcc42bc (patch) | |
| tree | a876c78e5e0c3e1e5019970b5e01c6b21690f136 /tools/perf/scripts/python/mem-phys-addr.py | |
| parent | e18baa7cc3598999317d6c2fe255756f6b3b7562 (diff) | |
lib: stackdepot: turn depot_lock spinlock to raw_spinlock
In RT system, the spin_lock will be replaced by sleepable rt_mutex lock,
in __call_rcu(), disable interrupts before calling
kasan_record_aux_stack(), will trigger this calltrace:
BUG: sleeping function called from invalid context at kernel/locking/rtmutex.c:951
in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 19, name: pgdatinit0
Call Trace:
___might_sleep.cold+0x1b2/0x1f1
rt_spin_lock+0x3b/0xb0
stack_depot_save+0x1b9/0x440
kasan_save_stack+0x32/0x40
kasan_record_aux_stack+0xa5/0xb0
__call_rcu+0x117/0x880
__exit_signal+0xafb/0x1180
release_task+0x1d6/0x480
exit_notify+0x303/0x750
do_exit+0x678/0xcf0
kthread+0x364/0x4f0
ret_from_fork+0x22/0x30
Replace spinlock with raw_spinlock.
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Zqiang <[email protected]>
Reported-by: Andrew Halaney <[email protected]>
Cc: Alexander Potapenko <[email protected]>
Cc: Gustavo A. R. Silva <[email protected]>
Cc: Vijayanand Jitta <[email protected]>
Cc: Vinayak Menon <[email protected]>
Cc: Yogesh Lal <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/mem-phys-addr.py')
0 files changed, 0 insertions, 0 deletions