Hi,
This message is in essence a bug report. I’m not sure this is the right forum for this message, but I couldn’t find a more relevant one on your site.
My system is a dual-core Athlon, 4GBt of RAM, Evga GTX280 video card, single screen.
~>uname -a
Linux pacific 2.6.24-23-generic #1 SMP Mon Jan 26 01:04:16 UTC 2009 x86_64 GNU/Linux
A section of xdpyinfo output is pasted in the bottom of the message.
I use fairly standard and up-to-date Ubuntu 8.04. I use gnome for my desktop environment. I’ve got NVIDIA-Linux-x86_64-180.22-pkg2.run installed and whatever came with CUDA 2.1.
What seems to be important, is that I also have “HP System Tray Service” applet installed. This is a utility for managing HP printers/scanners/faxes, which is available from the HP site. I think I used hplip-2.8.12.run to install the applet. You don’t need the printer itself to replicate the server freeze.
Once I’ve install the HP applet, it manifests itself as a blue icon on the desktop, in the top left corner. The icon has HP logo in it. The applet auto-starts on graphical logon. I BELIEVE the icon sticks to the desktop, in case of the workspace switch (see below), but I’m not sure.
If I try to switch workspaces on my desktop (using workspace switcher gnome applet), the server immediately freezes. This is 100% reproducible. I tried to wipe up my home dir, recreate the one off the defaults, and it still freezes. In this frozen state, the computer doesn’t respond to the keyboard/mouse commands, but it can be ssh-ed into. From this ssh connection, one can clearly see that the X server consumes 100% of the CPU time, on one of my two cores. The X process cannot be easily killed. When the computer is in this state, my CUDA-based programs won’t run: they will stall somewhere in the startup code. The only way to recover from this server freeze I’m aware of is a hardware reboot (/sbin/reboot won’t reboot).
Once I’ve killed the HP applet, the system seems rather stable. The system used to run for months with no reboot, when I was using it for remote non-graphical logins (ssh). I do a lot of CUDA development on this system.
Thank you in advance for taking a look at it!
~>xdpyinfo
name of display: :0.0
version number: 11.0
vendor string: The X.Org Foundation
vendor release number: 10400090
X.Org version: 1.4.0.90
maximum request size: 16777212 bytes
motion buffer size: 256
bitmap unit, bit order, padding: 32, LSBFirst, 32
image byte order: LSBFirst
number of supported pixmap formats: 7
supported pixmap formats:
depth 1, bits_per_pixel 1, scanline_pad 32
depth 4, bits_per_pixel 8, scanline_pad 32
depth 8, bits_per_pixel 8, scanline_pad 32
depth 15, bits_per_pixel 16, scanline_pad 32
depth 16, bits_per_pixel 16, scanline_pad 32
depth 24, bits_per_pixel 32, scanline_pad 32
depth 32, bits_per_pixel 32, scanline_pad 32
keycode range: minimum 8, maximum 255
focus: window 0x2000c26, revert to Parent
number of extensions: 34
BIG-REQUESTS
Composite
DAMAGE
DOUBLE-BUFFER
DPMS
Extended-Visual-Information
GLX
MIT-SCREEN-SAVER
MIT-SHM
MIT-SUNDRY-NONSTANDARD
NV-CONTROL
NV-GLX
RANDR
RECORD
RENDER
SECURITY
SHAPE
SYNC
TOG-CUP
X-Resource
XAccessControlExtension
XC-APPGROUP
XC-MISC
XFIXES
XFree86-Bigfont
XFree86-DGA
XFree86-Misc
XFree86-VidModeExtension
XINERAMA
XINERAMA
XInputExtension
XKEYBOARD
XTEST
XVideo
default screen number: 0
number of screens: 1
screen #0:
dimensions: 1600x1200 pixels (402x302 millimeters)
resolution: 101x101 dots per inch
depths (7): 24, 1, 4, 8, 15, 16, 32
root window id: 0x13e
depth of root window: 24 planes
number of colormaps: minimum 1, maximum 1
default colormap: 0x20
default number of colormap cells: 256
preallocated pixels: black 0, white 16777215
options: backing-store NO, save-unders NO
largest cursor: 64x64
current input event mask: 0x7a803f
KeyPressMask KeyReleaseMask ButtonPressMask
ButtonReleaseMask EnterWindowMask LeaveWindowMask
ExposureMask StructureNotifyMask SubstructureNotifyMask
SubstructureRedirectMask FocusChangeMask PropertyChangeMask
number of visuals: 84
default visual id: 0x21
visual:
visual id: 0x21
class: TrueColor
depth: 24 planes
available colormap entries: 256 per subfield
red, green, blue masks: 0xff0000, 0xff00, 0xff
significant bits in color specification: 8 bits
visual:
visual id: 0x22
class: DirectColor
depth: 24 planes
available colormap entries: 256 per subfield
red, green, blue masks: 0xff0000, 0xff00, 0xff
significant bits in color specification: 8 bits
visual:
visual id: 0x24
class: TrueColor
depth: 24 planes
available colormap entries: 256 per subfield
red, green, blue masks: 0xff0000, 0xff00, 0xff
significant bits in color specification: 8 bits
visual:
visual id: 0x25
class: TrueColor
depth: 24 planes
available colormap entries: 256 per subfield
red, green, blue masks: 0xff0000, 0xff00, 0xff
significant bits in color specification: 8 bits
visual:
visual id: 0x26
class: TrueColor
depth: 24 planes
available colormap entries: 256 per subfield
red, green, blue masks: 0xff0000, 0xff00, 0xff
significant bits in color specification: 8 bits