Peter Zijlstra 35d1c83324 perf: Fix hotplug splat ... commit e3703f8cdf upstream. Drew Richardson reported that he could make the kernel go *boom* when hotplugging while having perf events active. It turned out that when you have a group event, the code in __perf_event_exit_context() fails to remove the group siblings from the context. We then proceed with destroying and freeing the event, and when you re-plug the CPU and try and add another event to that CPU, things go *boom* because you've still got dead entries there. Reported-by: Drew Richardson <drew.richardson@arm.com> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Cc: Will Deacon <will.deacon@arm.com> Link: http://lkml.kernel.org/n/tip-k6v5wundvusvcseqj1si0oz0@git.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2014-03-06 21:30:11 -08:00
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callchain.c	perf: Add attribute to filter out callchains	2012-08-10 12:40:57 -03:00
core.c	perf: Fix hotplug splat	2014-03-06 21:30:11 -08:00
hw_breakpoint.c	hw_breakpoint: Use cpu_possible_mask in {reserve,release}_bp_slot()	2013-06-20 17:57:01 +02:00
internal.h	perf: Fix mmap() accounting hole	2013-06-19 12:44:13 +02:00
Makefile	uprobes: Move to kernel/events/	2012-02-22 11:08:00 +01:00
ring_buffer.c	perf: Fix perf ring buffer memory ordering	2013-11-20 12:27:47 -08:00
uprobes.c	uprobes: Fix utask->depth accounting in handle_trampoline()	2013-09-26 17:18:27 -07:00