[Bug 373968] Re: glyph corruption and occasional X lockup in Jaunty with ati rv280 (radeon 9200 se)

[fuzzyBSc]

I have just experienced another lockup, so rather than raise another bug report about it I thought I would continue attaching information to this one. My assumption at this stage is that they have the same root cause.
The lockup behaviour I experienced today was as follows:
* Applications locked up, but I was still able to move the mouse (previous lockups have actually caused my monitor to report out of range, so this is a first for this behaviour)
* I was able to ssh in (as usual) and login and keyboard performance were very slow (as usual)
* chipcardd4 and Xorg were the busy processes again. I did not put a strace onto chipchardd4, but captured output from Xorg this time before killing it (-9 was needed)
* A reboot was still required to get the system functional again
* Ctrl+Alt+Backspace doesn't seem to work for me in these conditions :(

dmesg doesn't contain any obviously-useful messages, but output is attached.
Xorg.1.log contained a number of enable/disable primary dac messages (attached)
strace on the Xorg process indicated periodic SIGALRMs interweaved with rt_sigreturn and ioctl calls on file descriptor 10. The rt_sigreturn and ioctl were both reporting -1 return code with errno of EBUSY.

Top is actually reporting more than 100% cpu usage for Xorg during this
lockup on my dual-core machine.

** Attachment added: "dmesg output from during lockup"
   http://launchpadlibrarian.net/26529117/dmesg

-- 
glyph corruption and occasional X lockup in Jaunty with ati rv280 (radeon 9200 se)
https://bugs.launchpad.net/bugs/373968
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.

-- 
ubuntu-bugs mailing list
ubuntu-bugs at lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs