[Regression, post-2.6.37-rc2] Unable to start KDE with 2.6.37-rc3 on Acer Ferrari One

[Rafael J. Wysocki]

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.

Full dmesg output is attached, please let me know if you need more information.

Thanks,
Rafael
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