Created attachment 87293 [details]
syslog during crash

Firefox 24, with hardware acceleration on, X crashes and the whole desktop
enters a logout loop. Restarting is the only way out :(. 

I am running Ubunut 13.04 (linux mint 15) with Linux Kernel 3.11.4 with
radeon.dpm=1 and oibaf ppa (mesa-9.3-git) and Xorg 1.13.4

Attached are my syslog and Xorg.0.log during the crash. 

Please let me know if I need to attach any further logs.


Here are some  error messages that I found in these logs :


syslog : 
[ 1807.720765] [drm:radeon_crtc_page_flip] *ERROR* failed to pin new rbo buffer
before flip
[ 1810.600061] radeon 0000:01:00.0: ffff88008c51ac00 pin failed


from Xorg.0.log :

[  1839.182] (WW) RADEON(0): flip queue failed: Invalid argument
[  1839.182] (WW) RADEON(0): Page flip failed: Invalid argument