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Date: Wed, 20 Oct 2010 17:12:58 -0700
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Subject: Re: [gentoo-user] Re: nouveau loads but freezes later, nvidia won't load
From: Grant <emailgrant@gmail.com>
To: gentoo-user@lists.gentoo.org
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>>>> I've been using the nouveau video driver for a while, but lately video
>>>> has been freezing with X at 100% CPU and the only way out seems to be
>>>> ssh'ing in and rebooting.
>>>
>>> Not that it will help with your bug, but I'm curious to know what video
>>> hardware you're using. =A0I had the same problem with my ancient nv34 c=
ard,
>>> which got fixed a few weeks ago in Linus's git kernel.
>>
>> I'm not sure of the actual chip, but I get this from lspci -v:
>>
>> nVidia Corporation C77 [GeForce 8100 / nForce 720a]
>>
>> It's an onboard chip on my motherboard. =A0Can you tell me in what
>> version of the Linux kernel you found the problem to be solved?
>
> In my particular case it was this commit, but I get the impression that
> there
> are still unfixed bugs that cause very similar symptoms:
>
> commit 3ba6462355c1c69dde58739a871d13bbb993e2e3
> Author: Francisco Jerez
> Date: =A0 Sat Aug 28 17:56:33 2010 +0200
>
> =A0 =A0drm/nouveau: Take fence spinlock before reading the last sequence.
>
> =A0 =A0It fixes a race between the TTM delayed work queue and the GEM IOC=
TLs
> =A0 =A0(fdo bug 29583) uncovered by the BKL removal.
>
> That patch was made on Aug 28, so Linus probably committed it in early
> September, maybe 2.6.36-rc3 or thereabouts.
>
> If you're serious about testing the nouveau driver I suggest you try the
> latest nouveau kernel sources from here:
>
> git://anongit.freedesktop.org/git/nouveau/linux-2.6
>
> I just pulled the latest changes from that repository, approx 40 changese=
ts,
> and not one of them applies to my poor old forgotten NV34 chip, so I'm
> losing
> interest in nouveau at this point. =A0But your hardware is much newer and=
it
> may
> be worth your while to test the latest changes. =A0It's certainly easy to=
do.
Thanks a lot Walt.
- Grant