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SubjectRe: [Regression, post-2.6.37-rc2] Unable to start KDE with 2.6.37-rc3 on Acer Ferrari One
From
2010/11/23 Rafael J. Wysocki <rjw@sisk.pl>:
> On Wednesday, November 24, 2010, Rafael J. Wysocki wrote:
>> Hi,
>>
>> I cannot start KDE with the 2.6.37-rc3 kernel.  The X server and display
>> manager start normally, but when I attempt to log into KDE, it attempts to
>> start, but then the X apparently crashes and this appears in the dmesg output:
>>
>> [   24.342287] radeon 0000:01:05.0: r600_cs_track_validate_cb offset[0] 0 46097920 4325376 too big
>> [   24.342298] radeon 0000:01:05.0: r600_packet3_check:1331 invalid cmd stream 502
>> [   24.342304] [drm:radeon_cs_ioctl] *ERROR* Invalid command stream !
>> [   24.694106] [drm:drm_mode_getfb] *ERROR* invalid framebuffer id
>> [   93.938946] radeon 0000:01:05.0: r600_cs_track_validate_cb offset[0] 0 46097920 4325376 too big
>> [   93.938956] radeon 0000:01:05.0: r600_packet3_check:1331 invalid cmd stream 502
>> [   93.938962] [drm:radeon_cs_ioctl] *ERROR* Invalid command stream !
>> [   94.278050] [drm:drm_mode_getfb] *ERROR* invalid framebuffer id
>> [  114.898043] radeon 0000:01:05.0: r600_cs_track_validate_cb offset[0] 0 46097920 4325376 too big
>> [  114.898053] radeon 0000:01:05.0: r600_packet3_check:1331 invalid cmd stream 502
>> [  114.898058] [drm:radeon_cs_ioctl] *ERROR* Invalid command stream !
>> [  115.266113] [drm:drm_mode_getfb] *ERROR* invalid framebuffer id
>> [  129.722472] [drm:drm_mode_getfb] *ERROR* invalid framebuffer id
>> [  142.984314] radeon 0000:01:05.0: r600_cs_track_validate_cb offset[0] 0 46097920 4325376 too big
>> [  142.984324] radeon 0000:01:05.0: r600_packet3_check:1331 invalid cmd stream 502
>> [  142.984330] [drm:radeon_cs_ioctl] *ERROR* Invalid command stream !
>> [  143.370083] [drm:drm_mode_getfb] *ERROR* invalid framebuffer id
>>
>> This doesn't happen with 2.6.37-rc2.
>
> Reverting the following commit:
>
> commit 16790569eddf4d406a16a65f4750f405fa669c52
> Author: Alex Deucher <alexdeucher@gmail.com>
> Date:   Sun Nov 14 20:24:35 2010 -0500
>
>    drm/radeon/kms: fix and unify tiled buffer alignment checking for r6xx/7xx
>
> fixes the issue for me (so everyone involved is already in the Cc list ;-)).
>

Are you sure you've got the right commit? That shouldn't change the
calculation that's failing at all. I'd guess it's probably one of
these:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=d33ef52d9db8a36900dd53f2e32db9a521ace259
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=f30df2fad0c901e74ac9a52a488a54c69a373a41

Can you attach your xorg log as well?

Alex

> Thanks,
> Rafael
>
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