The above are stack dumps. As you can see the most-recently invoked function in each case was getblk(), so I'd say you need to check your filesystem (and/or replace the hard drive). Marcin
Thanks a lot for your help. Now everything seems a bit more clear. But this leads to another question...The disks are software raided so the failed one should have been kicked out of the array which, in fact, didn't happen. Any hints?