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Usb Process Keeps Going Haywire!


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#1 Billy O'Neal

Billy O'Neal

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Posted 03 April 2008 - 04:10 PM

Hello, I have a really odd problem.

My server is a Fedora 7 box that shares a Canon iP4200 printer and a few disk drives to my lan. It also runs the Folding At Home Client.

It seems that I randomly get issues where a process called "usb" uses everything in the machine (goes to 99% CPU), killing my Folding@Home performance on this machine. It is usually not discovered until days later when I SSH in.

TOP shows that the process is being run by the "lp" user, which I would assume pins it down to something to do with CUPS.

A reboot usually cures the problem.

I do not know how to reproduce this problem, it seems to happen randomly.

Finally, if there is any way to fix this completely from the command line, that'd be nice because I do not have a keyboard, mouse, or monitor plugged into this machine right now. If that cannot be done, thats fine, but...

If anyone has any ideas, I'm all ears ;)

Billy3
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#2 raw

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Posted 03 April 2008 - 07:37 PM

/var/log/messages would be the first place to look.
See if something in there gives some info to go on.

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#3 Billy O'Neal

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Posted 03 April 2008 - 07:40 PM

Alright. Next time it happens I'll post some of that :thumbsup:

Billy3
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#4 Billy O'Neal

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Posted 13 April 2008 - 05:08 PM

Alright... I think I have it figured out. Whenever someone sends a job to the printer and the printer is off, it happens. Maybe CUPS constantly trying to resend the job. It appears the Auto-Turn-On feature of the windows driver is unavailable in the linux one. I am simply going to leave the printer on all the time to end the problem.

Thank you all,
Billy3
Twitter - My statements do not establish the official position of Microsoft Corporation, and are my own personal opinion. (But you already knew that, right?)
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