https://bugzilla.novell.com/show_bug.cgi?id=411797
User trenn@novell.com added comment
https://bugzilla.novell.com/show_bug.cgi?id=411797#c30
Thomas Renninger
/var/log/messages after SysRq+p and SysRq+t This was done and is the output when the system was frozen? On a quick look things look normal.
The currently processed code is some radeon cpu idle routine, so this would
point into graphics direction, but as you stated you tried different cards, I
doubt it is that (are you sure the other also froze? Better double check if you
are unsure).
I am not sure what to look for next, memtest is a good candidate.
If above is the sysrq output of the frozen machine, I am going to ask someone
else to have a second look, otherwise I suggest to leave this bug open for a
while. Maybe you find out something, then pls let us know, if not this might
even be a HW problem or very hard to find because we do not have a single
pointer what could cause this yet.
You could try to blacklist the radeon drm module (not sure about the exact
name, "lsmod |grep radeon" might show it).
Maybe blacklisting this one helps:
blacklist