linux-kernel - Re: drm/nouveau: crash regression in 3.5

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Message-ID: <50113E76.9090706@odi.ch>
Date:	Thu, 26 Jul 2012 14:56:22 +0200
From:	Ortwin Glück <odi@....ch>
To:	Marcin Slusarz <marcin.slusarz@...il.com>
CC:	linux-kernel@...r.kernel.org, bskeggs@...hat.com,
	dri-devel@...ts.freedesktop.org, airlied@...hat.com
Subject: Re: drm/nouveau: crash regression in 3.5

On 25.07.2012 20:42, Marcin Slusarz wrote:
> Good, below patch should fix this panic.
>
> Note that you can hit an oops in drm_handle_vblank because patch from
> http://lists.freedesktop.org/archives/dri-devel/2012-May/023498.html
> has not been applied (yet?).

After applying your patch, it still crashes, although with a slightly 
different stack trace. I then also applied the second patch, but that 
doesn't make any difference. New log attached.

Looks like interrupt occurs before nouveau_software_context_new() is 
called? Shouldn't the initialization be done from 
nouveau_irq_preinstall() so it is available when the irq occurs? Again, 
I am not an expert here. Just guessing...

Thanks,

Ortwin

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