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From: Daniel Vetter <daniel@ffwll.ch>
To: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: intel-gfx@lists.freedesktop.org
Subject: Re: [PATCH i-g-t] tests/gem_storedw_loop: Fix use after free for bufmgr
Date: Wed, 23 Sep 2015 18:01:31 +0200	[thread overview]
Message-ID: <20150923160131.GO3383@phenom.ffwll.local> (raw)
In-Reply-To: <5601A715.5040608@virtuousgeek.org>

On Tue, Sep 22, 2015 at 12:08:05PM -0700, Jesse Barnes wrote:
> On 09/22/2015 11:02 AM, robert.beckett@intel.com wrote:
> > From: Robert Beckett <robert.beckett@intel.com>
> > 
> > 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@virtuousgeek.org>
> > 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@intel.com>
> > Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
> > ---
> >  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@virtuousgeek.org>

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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  reply	other threads:[~2015-09-23 15:58 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-09-22 18:02 [PATCH i-g-t] tests/gem_storedw_loop: Fix use after free for bufmgr robert.beckett
2015-09-22 19:08 ` Jesse Barnes
2015-09-23 16:01   ` Daniel Vetter [this message]
2015-09-23 16:27     ` Thomas Wood
2015-09-24 10:13       ` [PATCH i-g-t] gem_storedw_loop: fix segfault when listing subtests Thomas Wood
2015-09-24 15:23         ` Jesse Barnes

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