On Thu, 2004-05-27 at 00:40, Charles R. Anderson wrote:
> I have a FC2 system whose X11 has locked up after sitting on a
> screensaver overnight. I can still get into the system via ssh, but I
> cannot vt switch away from the locked up X11. The X process is taking
> up all the CPU:
>
> USER PID %CPU %MEM VSZ RSS TT STAT STARTED TIME COMMAND
> root 23040 97.7 5.2 67488 20248 ? R May 22 1-16:02:50 /usr/X11R6/bin/X :0 -audit 0 -auth /var/gdm/:0.Xauth -nolisten tcp vt7
>
> strace shows it in a tight loop:
>
> select(1024, [8], NULL, NULL, {0, 0}) = ? ERESTARTNOHAND (To be restarted)
> select(1024, [8], NULL, NULL, {0, 0}) = ? ERESTARTNOHAND (To be restarted)
> select(1024, [8], NULL, NULL, {0, 0}) = ? ERESTARTNOHAND (To be restarted)
>
> Xorg.0.log shows this repeating error:
>
> (EE) RADEON(0): GetBuffer timed out, resetting engine...
> (EE) RADEON(0): Idle timed out, resetting engine...
> (EE) RADEON(0): GetBuffer timed out, resetting engine...
> (EE) RADEON(0): Idle timed out, resetting engine...
> (EE) RADEON(0): Idle timed out, resetting engine...
> (EE) RADEON(0): Idle timed out, resetting engine...
> (EE) RADEON(0): Idle timed out, resetting engine...
> ...
>
> How can I go about debugging this so I can make a meaningful bug
> report? What debuginfo packages and gdb version do I need?
>
> xorg-x11-6.7.0-2 is using radeon driver for this card:
>
> 01:00.0 VGA compatible controller: ATI Technologies Inc Radeon RV100 QY [Radeon 7000/VE] (prog-if 00 [VGA])
> Subsystem: ATI Technologies Inc Radeon 7000/Radeon VE
> Flags: bus master, stepping, 66Mhz, medium devsel, latency 32, IRQ 161
> Memory at d0000000 (32-bit, prefetchable)
> I/O ports at d000 [size=256]
> Memory at dd000000 (32-bit, non-prefetchable) [size=64K]
> Capabilities: [58] AGP version 2.0
> Capabilities: [50] Power Management version 2
>
> kernel is 2.6.5-1.358smp. Chipset:
>
> 00:00.0 Host bridge: VIA Technologies, Inc. VT82C693A/694x [Apollo PRO133x] (rev c4)
> Flags: bus master, medium devsel, latency 0
> Memory at d8000000 (32-bit, prefetchable)
> Capabilities: [a0] AGP version 2.0
> Capabilities: [c0] Power Management version 2
>
> 00:01.0 PCI bridge: VIA Technologies, Inc. VT82C598/694x [Apollo MVP3/Pro133x AGP] (prog-if 00 [Normal decode])
> Flags: bus master, 66Mhz, medium devsel, latency 0
> Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
> I/O behind bridge: 0000d000-0000dfff
> Memory behind bridge: dc000000-ddffffff
> Prefetchable memory behind bridge: d0000000-d7ffffff
> Expansion ROM at 0000d000 [disabled] [size=4K]
> Capabilities: [80] Power Management version 2
>
> CPUs:
>
> processor : 0
> vendor_id : GenuineIntel
> cpu family : 6
> model : 8
> model name : Pentium III (Coppermine)
> stepping : 3
> cpu MHz : 799.919
> cache size : 256 KB
> fdiv_bug : no
> hlt_bug : no
> f00f_bug : no
> coma_bug : no
> fpu : yes
> fpu_exception : yes
> cpuid level : 2
> wp : yes
> flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 mmx fxsr sse
> bogomips : 1572.86
>
> processor : 1
> vendor_id : GenuineIntel
> cpu family : 6
> model : 8
> model name : Pentium III (Coppermine)
> stepping : 3
> cpu MHz : 799.919
> cache size : 256 KB
> fdiv_bug : no
> hlt_bug : no
> f00f_bug : no
> coma_bug : no
> fpu : yes
> fpu_exception : yes
> cpuid level : 2
> wp : yes
> flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 mmx fxsr sse
> bogomips : 1597.44
>
> Thanks.
I'm guessing a gl-based screensaver is what has you stuck. Once you
reboot, use glxinfo to see if dri is enabled, then try running glxgears
(or tuxracer). I think you will see similar behavior (screen will lock
up, but you can ssh in and reboot that way). At least it seems I can
reproduce it that way here. (I have screensavers disabled).
--
Chris Kloiber
