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Old 08-26-2004, 05:41 PM   #1
Nightbird
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Registered: May 2004
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Why does linux reboot at Random when running my USB communication program


Hello all

I am experiencing a problem that I am sure is not a distribution problem as I am experiencing similar problems on both my RH9.0 and knoppix 2.4.26 boxes.

I am using a private usb kernel mode driver (developed by the company that made the hardware) for the low-level usb comunication. My program sends information back and forth from the hardware device a number of times during execution. The whole time that the program is running it does not have any memory leaks (per Etnus Totalview w/Memory debugging active). Does anyone know of maybe an error message that is getting thrown that I may not be catching that could cause a spontatnious reboot of the machine. (the reboots occur even when I run my program in user mode not in root). I have turned off the trap for CAD in the inittab file and I still get the same problem. Sometimes I can run the program all day long and only have one reboot, other times I get it every 10 minutes. Any help or ideas would be lovely. I would show my source but it is for Job so it is a closed source matter as this is part of some black box style software.
Not sure if it might be a problem but the kernel mode driver uses a ring buffer, and i haven't used one since college, so I don't remember if they are proned to memeory leaks or what.

Thanks for your help.
-Nightbird
 
Old 08-27-2004, 05:25 AM   #2
eisman
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Registered: Jul 2004
Location: The Netherlands
Distribution: Sidux , Debian, Haiku, PC-BSD, CentOS --> XenExpress
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I had something like it ones, but it hanged my computer not rebooting it.
The problem was in the usb modules.


Perhaps the usb module you use does a reboot?

Are the correct usb modules loaded for your chipset?
 
Old 08-27-2004, 04:57 PM   #3
Nightbird
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Registered: May 2004
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yes we are using intel and via mobo so they require the uhci and the ehci and that is what we have loaded. so I am at a loss. Any other ideas.

-Nightbird
 
Old 09-02-2004, 08:38 PM   #4
Nightbird
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bump??
 
  


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