Re: BUG_ON drivers/char/random.c:986 (Was: perf: use after free in perf_remove_from_context)

[H. Peter Anvin]

On 05/16/2014 08:34 AM, Peter Zijlstra wrote:
> 
> While fuzzing to reproduce my issue I hit the below, its triggered loads
> of times and then the machine wedged (needed a power cycle), I can
> provide the full console log if people care.
> 
> Anybody seen that one before?
> 

I certainly haven't... this bad.  Any idea what the actual system call
looked like?

The BUG_ON() in question indicates that r->entropy_count either
overflowed or underflowed... most likely underflowed I'd guess.

	-hpa

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