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Old 03-29-12, 11:13 AM   #1
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Join Date: Mar 2012
Location: Stuttgart
Posts: 3
Default XServer hang (100% CPU)

We are using multi monitor environments (3 x NVS 290, PCIe 1x, each card with 2 monitors) on a Fedora Core x86_64 System with kernel and the Nvidia display driver 280.13

We had on several such systems in the last few month, the following problem:
Systems are running 24/7. Sometimes in the morning all monitors are frozen. Moving the mouse, will start the mouse to "flicker".

The mouse pointer appears and disappears a couple times per second. Mouse does not move. All is frozen.

When starting to move the mouse (physically), the X-Server begins to consume 100% CPU. This will never end.

The only known solution is to restart the XServer. Nothing substantive can be found in /var/log/messages nor in /var/log/Xorg.0.log.

Our Java application is gtk based and we are using OpenGL (JOGL).

In the release notes of 295.20, some issues concerning OpenGL and hangs are mentioned. Are the problems solved similar to the behaviour I descried above ?
Are there some debug options to get more information ?



Xorg log snippet:

X.Org X Server 1.9.5
Release Date: 2011-03-17
[105295.523] X Protocol Version 11, Revision 0
[105295.523] Build Operating System: x86-07 2.6.32-131.2.1.el6.x86_64
[105295.523] Current Operating System: Linux hmilab21 #1 SMP Tue Dec 20 15:34:51 CET 2011 x86_64
[105295.523] Kernel command line: ro root=UUID=e682877c-7a70-477d-beb6-72aef1775fe7 rd_NO_LUKS rd_NO_LVM rd_NO_MD rd_NO_DM LANG=en_GB.UTF-8 SYSFONT=latarcyrheb-sun16 KEYTABLE=de-latin1 notsc clocksource=acpi_pm nohz=off highres=off rhgb quiet
[105295.523] Build Date: 13 October 2011 02:24:00PM
[105295.523] Build ID: xorg-x11-server 1.9.5-2.fc14
[105295.530] (II) Module glx: vendor="NVIDIA Corporation"
[105295.530] compiled for 4.0.2, module version = 1.0.0
[105295.530] Module class: X.Org Server Extension
[105295.530] (II) NVIDIA GLX Module 280.13 Wed Jul 27 17:12:07 PDT 2011
NVIDIA GPU Quadro NVS 290 (G86GL) at PCI:1:0:0 (GPU-0)
[105296.578] (--) NVIDIA(1): Memory: 262144 kBytes
[105296.578] (--) NVIDIA(1): VideoBIOS:
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