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Old 05-24-2004, 12:18 AM   #1
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Random Hangs

First off, what I have:

I installed an old copy of Mandrake 8.1 (didn't want to dl a whole new distro), and then dl'd and compiled the sources for Kernel 2.6.5,'s release (as of May 10th, I don't recall the exact version), GCC3.4, the NVidia driver for my GeForce, and Gnome 2.6.

Now, the symptons: If my computer sits idle for a period of time (more than an hour, but the exact time is uncertain) it will hang as if shutdown were called without -h.

The system is entirely unresponsive. Various three fingered salutes do nothing. I must use either the reset or the power buttons to halt the system.

If I am running a CPU intensive program (ie, POV-Ray) it still crashes, but not as often. It is possible that it is hanging after the program finishes.

There is nothing in my system logs concerning a shutdown. When I reboot (either from the harddrive or a burned copy of Knoppix) and examine the logs, it is as if they just stop.

Booting Knoppix off of a CD, I can leave the computer on for days without a problem.

Does anyone have any ideas what this might be caused by?

I will try to get more accurate timings when possible, but this is difficult as it always happens when I am away from the computer for an extended period of time.

Thanks in advance,

Old 05-24-2004, 12:43 AM   #2
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dunno what's going on but have you tried leaving your on computer without X? You can stop X by going to a text terminal with ctrl-alt-F1, and then do
init 3
as root. Just to see if it is X that's crashing or something else.
Old 05-24-2004, 12:25 PM   #3
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Since you've upgraded big parts of the sysem, have you upgraded all other dependencies ? The 2.6 kernels need some other up-to-date binaries, and i guess so do the rest of the stuff you've installed.

If my computer sits idle for a period of time (more than an hour, but the exact time is uncertain) it will hang as if shutdown were called without -h.
Maybe some power-saving software coming up and crashing ?

Various three fingered salutes do nothing.
You mean [Ctrl]+[Alt]+[Del], or the [SysRq] keys ?

A way to look into this would be to log into your machine from a network, before it "crashes", and to see what happens.
Old 05-24-2004, 07:37 PM   #4
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I mean the SysRq keys.

I can't log in from another machine, because it's the only one I have (and I don't have 'net access at home, only at the library).

I'll try leaving it on without X to see if that does anything...


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