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Old 08-29-06, 12:45 PM   #6
jdtate101
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Join Date: Jul 2006
Posts: 11
Default Re: X crash at 100% CPU Usage

Are you using irq_balancer ????
As you have multiple core CPU, there is a major bug in irq_balancer in 10.1 with some motherboards which causes lockups at random times (specifically periods of low activity). Symtoms are:

1) Partial lockup with mouse still usable but disks not usable (ie lost irq to serial ata controller)
2) Jumpy mouse and keyboard input.
3) Full lock (lost irq to video controller)

Had this problem in both Ubuntu and Suse, took 6 weeks to track down ...now have both systems 100% stable.
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