Can you insmod the radeon drm module with drm_opts=debug do the test and send on the trace, it may be getting wedged somewhere unexpected...
Dave. > > All of this was tested with a virgin 2.6.8.1 (with debug info and > frame pointers enabled) and Debian's XFree86 4.3.0.1, using DarkPlaces > and Twilight (both popular quakeGL engine forks) as test apps, unless > otherwise noted. > > Thanks to wli (who I owe at least one beer for this, may be an entire > case), we've been able to figure exactly whats going on. The driver is > turning off interrupts, then deadlocking. (No sysrq, no sshing in, > capslock's light doesn't work.) > > Turning the NMI watchdog on, it 'fixes' the deadlock (and thanks to > the watchdog, ssh and sysrq now work, but capslock's light still > doesn't work), but the app and X are still dead, but now I can ssh in > and kill -9 them both, however, and quite obviously, I can't start > another X, but I can reboot cleanly. > > Things already tested that don't effect bug: > Turning SMP on or off > Turning 4k stacks on or off > Using new radeon fbcon, using old radeon fbcon, using no fbcon > Turning Local APIC for uniproc and/or IO-APIC for uniproc on or off > Turning preempt on or off > Using mem=nopentium > Waving a dead chicken over the box > > Things already tested for: > Kernels as far back as 2.6.0 have this bug, haven't tested any earlier > > Thanks to netconsole (who I recommend to anyone that can't setup > serial console stuff), I was able to capture the entire kernel output, > including sysrq-t output right after my test app crashes. > > I'm including both the netconsole output and the .config. vmlinux and > radeon.ko (and anything else you need) are available upon request. > > -- David Airlie, Software Engineer http://www.skynet.ie/~airlied / airlied at skynet.ie pam_smb / Linux DECstation / Linux VAX / ILUG person ------------------------------------------------------- This SF.Net email is sponsored by BEA Weblogic Workshop FREE Java Enterprise J2EE developer tools! Get your free copy of BEA WebLogic Workshop 8.1 today. http://ads.osdn.com/?ad_id=5047&alloc_id=10808&op=click -- _______________________________________________ Dri-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/dri-devel
