Re: [PATCH i-g-t] tests/gem_storedw_loop: Fix use after free for bufmgr

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On Tue, Sep 22, 2015 at 12:08:05PM -0700, Jesse Barnes wrote:
> On 09/22/2015 11:02 AM, robert.beckett@xxxxxxxxx wrote:
> > From: Robert Beckett <robert.beckett@xxxxxxxxx>
> > 
> > Move bufmgr destruction to end of tests. This avoids use after free on
> > successive tests.
> > 
> > This could be squashed with the following patch to aid bisectability:
> > 
> > commit 0679702150157706a6def66b893b29c16345f4db
> > Author: Jesse Barnes <jbarnes@xxxxxxxxxxxxxxxx>
> > Date:   Wed Aug 5 16:06:31 2015 -0700
> > 
> >     tests/gem_storedw_loop: add new store_dword test to unify per-ring ones v2
> > 
> > Signed-off-by: Robert Beckett <robert.beckett@xxxxxxxxx>
> > Cc: Jesse Barnes <jbarnes@xxxxxxxxxxxxxxxx>
> > ---
> >  tests/gem_storedw_loop.c |    2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> > diff --git a/tests/gem_storedw_loop.c b/tests/gem_storedw_loop.c
> > index 10b12d4..e7ebcc2 100644
> > --- a/tests/gem_storedw_loop.c
> > +++ b/tests/gem_storedw_loop.c
> > @@ -128,7 +128,6 @@ store_test(int ring, int count)
> >  
> >  	drm_intel_bo_unreference(target_buffer);
> >  	intel_batchbuffer_free(batch);
> > -	drm_intel_bufmgr_destroy(bufmgr);
> >  }
> >  
> >  struct ring {
> > @@ -181,5 +180,6 @@ igt_main
> >  		}
> >  	}
> >  
> > +	drm_intel_bufmgr_destroy(bufmgr);
> >  	close(fd);
> >  }
> > 
> 
> Looks good, thanks.  Unfortunately too late to squash...
> 
> Reviewed-by: Jesse Barnes <jbarnes@xxxxxxxxxxxxxxxx>

No one from vpg has igt commit access so you need to push patches for
them. I've done that now.
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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