Messages in this thread | | | Date | Mon, 15 May 2017 11:21:15 -0400 | From | Steven Rostedt <> | Subject | Re: [PATCH 2/4] ftrace/instances: Clear function triggers when removing instances |
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On Sun, 14 May 2017 01:01:02 +0530 "Naveen N. Rao" <naveen.n.rao@linux.vnet.ibm.com> wrote:
> If instance directories are deleted while there are registered function > triggers: > > # cd /sys/kernel/debug/tracing/instances > # mkdir test > # echo "schedule:enable_event:sched:sched_switch" > test/set_ftrace_filter > # rmdir test > Unable to handle kernel paging request for data at address 0x00000008 > Unable to handle kernel paging request for data at address 0x00000008 > Faulting instruction address: 0xc0000000021edde8 > Oops: Kernel access of bad area, sig: 11 [#1] > SMP NR_CPUS=2048 > NUMA > pSeries
Looks like this patch needs to be marked for stable, and go in right away. I may also do the same for the ftracetest bashism patch with Masami's approval. I may also slip in the ftracetest for the bug that this patch fixes.
The first patch can go into the queue for 4.13.
-- Steve
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