Barret Rhoden 2ed6edd33a perf: Add cond_resched() to task_function_call() ... Under rare circumstances, task_function_call() can repeatedly fail and cause a soft lockup. There is a slight race where the process is no longer running on the cpu we targeted by the time remote_function() runs. The code will simply try again. If we are very unlucky, this will continue to fail, until a watchdog fires. This can happen in a heavily loaded, multi-core virtual machine. Reported-by: syzbot+bb4935a5c09b5ff79940@syzkaller.appspotmail.com Signed-off-by: Barret Rhoden <brho@google.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/20200414222920.121401-1-brho@google.com		2020-04-30 20:14:36 +02:00
..
callchain.c	perf/core: Convert to SPDX license identifiers	2019-02-04 08:46:11 +01:00
core.c	perf: Add cond_resched() to task_function_call()	2020-04-30 20:14:36 +02:00
hw_breakpoint.c	perf/hw_breakpoint: Fix arch_hw_breakpoint use-before-initialization	2019-09-06 08:24:01 +02:00
internal.h	perf: Make struct ring_buffer less ambiguous	2020-01-13 13:19:38 -05:00
Makefile
ring_buffer.c	perf: Make struct ring_buffer less ambiguous	2020-01-13 13:19:38 -05:00
uprobes.c	mm/mmap.c: use IS_ERR_VALUE to check return value of get_unmapped_area	2019-12-01 06:29:19 -08:00