Messages in this thread | | | Date | Sun, 18 Jan 2015 22:49:46 -0500 (EST) | From | Vince Weaver <> | Subject | Re: perf fuzzer crash [PATCH] perf: Get group events reference before moving the group |
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On Fri, 16 Jan 2015, Vince Weaver wrote: > > I just wanted to report that I've tested both this patch and Jiri's > original one and they both keep my easy-to-trigger-testcase from crashing > my core2 machine (when applied against 3.18).
I've continued fuzzing all weekend, with PeterZ's patch applied to 3.19-rc4. It has managed to stay up without crashing, impressive.
Fuzzing still turns up a few issues but no crashes:
[ 1753.904001] WARNING: CPU: 0 PID: 23800 at arch/x86/kernel/hw_breakpoint.c:119 arch_install_hw_breakpoint+0x6a/0xf6() [ 1753.904001] Can't find any breakpoint slot
(I thought we had fixed that one).
[80608.209702] Uhhuh. NMI received for unknown reason 3d on CPU 0. [80608.212041] Do you have a strange power saving mode enabled? [80608.212041] Dazed and confused, but trying to continue
(these are common but don't seem to affect system stability).
Vince
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