Re: perf: fuzzer causes lockup in x86_pmu_event_init()

[Vince Weaver]

On Sat, 28 Feb 2015, Jiri Olsa wrote:

> hum, I dont see the locking is a problem.. but looks like once
> the sibling becomes singleton event, we dont init its sibling_list
> 
> how about patch below.. compile tested ;-)

so this is instead of PeterZ's patch?

I'll start my test-machine fuzzing with this plus the infinite-interrupt 
fix and see what happens.  The machines do eventually trigger the issue
somwhat consistently but it can take up to a week before they hit it
so it's a tough one to test for.

Vince

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