[Bugme-new] [Bug 33272] New: drm related hard-hang

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=33272

           Summary: drm related hard-hang
           Product: Other
           Version: 2.5
    Kernel Version: 2.6.39-rc3
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: blocking
          Priority: P1
         Component: Other
        AssignedTo: other_other at kernel-bugs.osdl.org
        ReportedBy: htmldeveloper at gmail.com
        Regression: Yes


The system - while in use - can suddenly hanged itself - display no change,
mouse/keyboard not responsive, and even going into the system via ssh is
impossible.   The "A" yellow alert signal light on my Lenovo R400 laptop will
then start to blink.

Upon reboot the trace is this:

Apr 14 09:02:26 tteikhua-laptop kernel: [ 2132.938702] [drm] capturing error
event; look for more information in /debug/dri/0/i915_error_state
Apr 14 09:08:18 tteikhua-laptop syslogd 1.5.0#5ubuntu3: restart.
Apr 14 09:08:18 tteikhua-laptop kernel: Inspecting /boot/System.map-2.6.39-rc3+
Apr 14 09:08:18 tteikhua-laptop kernel: Cannot find map file.
Apr 14 09:08:18 tteikhua-laptop kernel: Loaded 69004 symbols from 47 modules.

And the funny thing is if I mount debugfs the /debug directory, I can see there
is no error in the i915_error_state output, but when it hanged, being
non-responsive to any form of input, there is no way to query the error state -
even via ssh.

The previous version of 2.6.38-rc2+ has been wonderful for me, perfectly
running system - except for some problem with NFS shutting down, but the
present version - linus git-tree updated as of yesterday is not working.

Thanks.

-- 
Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are on the CC list for the bug.