Re: rb tree hrtimer lockup bug (found by perf_fuzzer)

[Thomas Gleixner]

On Tue, 18 Mar 2014, Vince Weaver wrote:

> 
> The perf_fuzzer can quickly cause a machine to lockup with an hrtimer 
> related rb tree related oops.  I've had a hard time debugging this in any 
> useful manner, but I can trigger it on both core2 and haswell test systems 
> on 3.14-rc7.
> 
> This involves making a large number of perf_event events of all types and 
> then forking a lot.

Can you enable debugobjects please? The should give us an hint what
corrupts the rbtree.

Thanks,

	tglx

 
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