[Nouveau] 2.6.39-rc1 nouveau regression (bisected)

Nigel Cunningham lkml at nigelcunningham.com.au
Sat Apr 16 15:12:35 PDT 2011


Hi.

On 15/04/11 16:11, Dominik Brodowski wrote:
> On Thu, Apr 14, 2011 at 09:02:01PM +0200, Marcin Slusarz wrote:
>> On Thu, Apr 14, 2011 at 07:05:59PM +0200, Dominik Brodowski wrote:
>>> Thought about CCing Linus to show him that 2.6.39-rcX isn't as "calm"
>>> to everyone, but then chose to CC Maciej instead: Would you be so kind and
>>> add this to your regression list? Thanks!
>>>
>>> Since commit 38f1cff
>>>
>>>     From: Dave Airlie <airlied at redhat.com>
>>>     Date: Wed, 16 Mar 2011 11:34:41 +1000
>>>     Subject: [PATCH] Merge commit '5359533801e3dd3abca5b7d3d985b0b33fd9fe8b' into dr
>>>
>>>     This commit changed an internal radeon structure, that meant a new driver
>>>     in -next had to be fixed up, merge in the commit and fix up the driver.
>>>
>>>     Also fixes a trivial nouveau merge.
>>>
>>>     Conflicts:
>>>         drivers/gpu/drm/nouveau/nouveau_mem.c
>>>
>>> booting my atom/NM10/ION2 system crashes hard during boot, right after
>>> blanking the screen, and before the initramfs gets loaded. I just
>>> re-checked: both parent commits ( 5359533 and 4819d2e ) do indeed work
>>> just fine, but the merge commit ( 38f1cff ) fails, same as tip ( 85f2e68 ).
>> Can you activate netconsole and check whether kernel spits anything interesting?
>> You might try to load nouveau module after boot - maybe something will be saved
>> to /var/log or you could even ssh into the box and check dmesg...
> Compiling it as a module seems to work fine. When I do so, no regression is
> obvious from what gets reported in "dmesg". However, somehow I now do get
> some output: The last message I see is
>
> [drm] nouveau 0000:01:00.0: allocated 1680x1050, fb 0x40.... b0 <some pointer value>
>
> Then, nothing more. However, it really is quite strange why this error only
> appears in the CONFIG_NOUVEAU=y case, not in the =m case...
Try disabling CONFIG_BOOT_LOGO. I reported on freedesktop.org that it is
causing me an oops at boot, but my bug has been ignored there so far -
perhaps I should have posted it here instead.

Regards,

Nigel


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