Re: [PATCH] drm/i915: Reinstate error level message for non-simulated gpu hangs

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On Wed, Oct 01, 2014 at 09:19:50AM +0100, Chris Wilson wrote:
> On Wed, Oct 01, 2014 at 10:13:00AM +0200, Daniel Vetter wrote:
> > On Wed, Oct 01, 2014 at 07:28:39AM +0100, Chris Wilson wrote:
> > > On Wed, Oct 01, 2014 at 01:04:19AM +0200, Daniel Vetter wrote:
> > > > This seems to have been accidentally lost in
> > > > 
> > > > commit be62acb4cce1389a28296852737e3917d9cc5b25
> > > > Author: Mika Kuoppala <mika.kuoppala@xxxxxxxxxxxxxxx>
> > > > Date:   Fri Aug 30 16:19:28 2013 +0300
> > > > 
> > > >     drm/i915: ban badly behaving contexts
> > > > 
> > > > Without this real gpu hangs only log output at info level, which gets
> > > > filtered away by piglit's testrunner.
> > > 
> > > A successful GPU hang is not an error. Might be a warn or a notice, but
> > > it certainly isn't a driver error.
> > 
> > Well not of the kernel driver, but might very well be a bug in the
> > userspace driver. With this piglit marks tests that hung the gpu as
> > dmesg-fail, without this they might even pass. Ken raised this on irc and
> > I agree that it's a must-have feature for developers that their testsuite
> > can tell them when stuff broke. Provding this some other way is a lot more
> > work and imo should be done in a separate patch, this here is just the
> > minimal fix for this regression.
> 
> I strongly disagree that we should be working around self-imposed
> limitations of the test suite by making users believe their kernel is
> broken.

So what else should piglit do then?
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
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