Nate wrote:
> Yeah, I doubt very much it's a backuppc issue, sorry if I may have 
> implied that.  I'm fairly confident it's a ext3/driver issue.  But as 
> this popped up when we began using backuppc I suspect it may have to 
> do with the massive quantities of files and had hoped another 
> backuppc may have encountered and solved it.
>
> controller is onboard nvidia, using the sata_nv driver
> drives are all Seagate ST31500341AS 1.5TB drives
>   

Hmmm...  http://techreport.com/discussions.x/15863

> drives are tethered by LVM to a 4.1TB single ext3 partition
>
> Seems that centos reported bug also is using LVM, perhaps a tie, but 
> it's ext3 that's crashing by the crash output.
>   

It's likely the kernel trying to access the ext3 data and not getting a 
response.  What does "fgrep frozen /var/log/messages" show?

You might try disabling the write cache on the physical drives (hdparm 
-W0 /dev/sd{a,b,c), as some have reported that solves the "stuttering" 
at the cost of performance.

Chris

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