Re: perf_fuzzer crash on pentium 4

Cyrill Gorcunov
2014-05-07T16:58:20Z

On Wed, May 07, 2014 at 08:49:02PM +0400, Cyrill Gorcunov wrote:
> On Wed, May 07, 2014 at 12:46:24PM -0400, Vince Weaver wrote:
> >
> > sorry for the delay, I like to compile kernels locally and it takes a
> > really long time to build a ftrace-enabled kernel on a pentium 4 it seems.
> >
> > Anyway I threw some printks in, and this is what I get:
> >
> > [ 447.572626] VMW: bind=NULL config=6b6b6b6b6b6b6b6b
> >
> > I have slab poisoning turned on. Use after free?
>
> Looks so. It's list poison iirc, thus i think it comes from upper level,
> ie from perf general code.

Vince, I'm trying to figure out where it might come from, but no
ideas yet.