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SubjectRe: perf_fuzzer compiled for x32 causes reboot
On Mon, 24 Feb 2014, Vince Weaver wrote:

> I do note that
> perf_callchain_user();
> Does
> fp = (void __user *)regs->bp;
> ...
> bytes = copy_from_user_nmi(&frame, fp, sizeof(frame));
> And in my particular executable RBP has nothing to do with a frame
> pointer, but is instead being used as a general purpose register.

and as a reminder, I'm seeing this on an x32 executable, so
perf_callchain_user32() is probably coming into play.

So maybe it is an x32 issue after all.


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