linux-kernel - Re: [bisected] nouveau: "Failed to idle channel x" after resume

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Date:	Wed, 8 Aug 2012 15:37:16 +1000
From:	Ben Skeggs <skeggsb@...il.com>
To:	Maxim Levitsky <maximlevitsky@...il.com>
Cc:	Aioanei Rares <krnl.list@...il.com>,
	"nouveau@...ts.freedesktop.org" <nouveau@...ts.freedesktop.org>,
	Martin Nyhus <martin.nyhus@....com>,
	linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org,
	Ben Skeggs <bskeggs@...hat.com>
Subject: Re: [bisected] nouveau: "Failed to idle channel x" after resume

On Mon, Aug 06, 2012 at 11:38:04PM +0300, Maxim Levitsky wrote:
> On Sat, 2012-08-04 at 17:41 +0300, Maxim Levitsky wrote: 
> > On Mon, 2012-07-23 at 18:25 +0300, Aioanei Rares wrote: 
> > > On Thu, Jul 5, 2012 at 11:24 PM, Martin Nyhus <martin.nyhus@....com> wrote:
> > > >
> > > > On Mon, 11 Jun 2012 23:18:42 +0200 Martin Nyhus wrote:
> > > > > after resuming from suspend nouveau starts writing Failed to idle
> > > > > channel x (where x is 2 or 3) to the log and X appears to stop and
> > > > > then restart only to stop again. Starting Firefox after resuming
> > > > > triggers the bugs every time, and bisecting leads to 03bd6efa
> > > > > ("drm/nv50/fifo: use hardware channel kickoff functionality").
> > > >
> > > > Hi Ben,
> > > > I'm still seeing this bug with the latest from Linus
> > > > (v3.5-rc5-98-g9e85a6f) and linux-next (next-20120705).
> > > >
> > > > lspci output:
> > > > 01:00.0 VGA compatible controller: nVidia Corporation G86 [GeForce
> > > > 8400M GS] (rev a1)
> > > >
> > > > Sorry I haven't followed up on this earlier,
> > > > Martin
> > > 
> > > I can confirm this with 3.5.0, Chromium and Arch Linux. It's a HP
> > > Pavilion laptop with a G86 [GeForce 8400 M GS] video card .
> > > Seems related to this bug:
> > > http://lists.freedesktop.org/archives/nouveau/2011-January/007358.html
> > > . If I can do anything else
> > > to help, I will be glad to.
> > Added nouveau@...ts.freedesktop.org>
> > 
> > I confirm the same issue here.
> > will try to do dig it.
> Nope,can't dig this :-(
Interestingly, this works just fine for me after the driver rework.

I can confirm issues on G86 with 3.5/3.6-rc1 stock though.  I'll
attempt to find a fix suitable for the non-reworked driver.

Ben.

> 
> 
> 
> -- 
> Best regards,
>         Maxim Levitsky
> 
> 
> 
> _______________________________________________
> dri-devel mailing list
> dri-devel@...ts.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/dri-devel
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