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

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

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

Billy3

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