On Thu, 27 Mar 2014, Ville Valkonen wrote: > after having backups running for few days, system crashes. I am using > rsnapshots for the backups. > > The crash happened on snapshot from 22-03-2014 running i386. > Attached dmesg is slighlty newer, from 27-03-2014 (dmesg below). > > An external backup hard drive is attached via USB. ... > Here are the debug messages I was able to retrieve via serial line. After > typing "show pool" it went to an unresponsive state.
Do you recall the actual panic message? The most likely cause is a fatal I/O error while processing a softdep worklist, which will trigger a panic (this is a known issue with softdeps). If that's the case, then you should reconsider using a failing harddrive as your backup device. But without the actual panic message, I can't tell if that's the case. Philip Guenther
