Re: perf_fuzzer compiled for x32 causes reboot

[Peter Zijlstra]

On Thu, Feb 27, 2014 at 05:31:50PM -0500, Steven Rostedt wrote:
> Well, the perf ring buffer is vmalloced, right? That can cause a page
> fault too.

On x86 they're typically not -- although we have a debug CONFIG option
to test that code on x86 too. On SPARC/ARM etc.. we have to use
vmalloc_user() because of cache aliasing (yay for VIPT).
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