Messages in this thread | | | Date | Mon, 31 Mar 2014 15:48:01 +0200 (CEST) | From | Thomas Gleixner <> | Subject | Re: rb tree hrtimer lockup bug (found by perf_fuzzer) |
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On Mon, 31 Mar 2014, Vince Weaver wrote:
> On Mon, 31 Mar 2014, Thomas Gleixner wrote: > > > > Vince, can you please disable CONFIG_DEBUG_KOBJECT_RELEASE and remove > > all the debug patches to see whether the issue goes away? > > It makes the crash on boot go away, but it is still possible to trigger
Ok. So we can leave that issue to the tty folks.
> a similar crash (hrtimer oopsing due to corrupt rbtree) using the > perf_fuzzer.
I did not expect that it goes away.
> This all started because when trying to debug the perf_fuzzer crash I > was told to turn on the extra debugging, and then that caused the crash at > boot.
I know. Thanks for the patience in decoding this nastiness.
> The fuzzer related crash happens on both a core2 and a haswell machine > and it triggers pretty quickly when fuzzing, I'll have to go back and see > how repeatable it is.
Can you please reenable CONFIG_DEBUG_OBJECTS and check whether they catch something?
Thanks,
tglx
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