[drm2][panic] Running XOrg with SNA enabled causes system panic after few hours on G33

[Oleg Sidorkin]

On Wed, Jun 19, 2013 at 5:27 PM, Artyom Mirgorodskiy
<artyom.mirgorodsky at gmail.com> wrote:
> Hm, yesterday I turn off SNA optimization and got hang when shutdown :(

Check the logs for messages that can help to investigate the problem.
If there is nothing helpful,
I have no idea but to configure a serial console and see if there is
something that helps to understand the problem.

> On Wednesday 19 June 2013 00:25:55 Konstantin Belousov wrote:
>> On Wed, Jun 19, 2013 at 01:11:19AM +0400, Oleg Sidorkin wrote:
>> > On Sun, Jun 16, 2013 at 6:27 PM, Konstantin Belousov
>> >
>> > <kostikbel at gmail.com> wrote:
>> > > On Sun, Jun 16, 2013 at 06:04:39PM +0400, Oleg Sidorkin wrote:
>> > >> Thanks for the patch.
>> > >> I've adapted the proposed patch for stable/9 and it is running with
>> > >> SNA enabled now.
>> > >
>> > > In other words, your problem seems to be gone with the patch applied ?
>> >
>> > Now 48h are passed without panics. Fix definitely works. Thanks.
>>
>> Thank you.
>>
>> I tested it locally (without SNA) and committed the change a hour ago.
>> It is required anyway, since the race sounds possible.  I was mostly
>> concerned with a thinko in the logic.
> --
> Artyom Mirgorodskiy