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

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Message-ID: <509012B8.1010706@odi.ch>
Date:	Tue, 30 Oct 2012 18:47:36 +0100
From:	Ortwin Glück <odi@....ch>
To:	Marcin Slusarz <marcin.slusarz@...il.com>, bskeggs@...hat.com,
	linux-kernel@...r.kernel.org
Subject: Re: drm/nouveau: crash regression in 3.5

On 02.08.2012 18:56, Marcin Slusarz wrote:
> On Thu, Aug 02, 2012 at 01:26:55PM +0200, Ortwin Glück wrote:
>> I have managed to turn the crash into a WARN_ON, by adding this to the
>> begin of nouveau_software_vblank():
>>
>>           if (!psw) {
>>                   WARN_ON(1);
>>                   return;
>>           }
>
> Yes, I know about it, but this change fixes only a symptom. We should not get
> into this code at all without enabling vblank.

I was wondering if that is ever going to be fixed in stable. Nouveau is 
broken due to this bug in 3.5 and 3.6 on HP laptops -- not terribly 
exotic hardware, is it? Is there any reason why this should not be 
submitted to stable?

Ortwin

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