Date: Thu, 2 Apr 2009 13:27:35 -0700 (PDT) From: "John H. Nyhuis" <cabal@u.washington.edu> To: freebsd-questions@freebsd.org Subject: kernal dump on zfs file system panic?!? "panic: ffs_blkfree freeing free block" Message-ID: <alpine.LRH.2.01.0904021310150.13327@homer24.u.washington.edu>
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About every 5-10 minutes, my freshly installed freeBSD 7.1 stable box hangs and begains a kernal dump. I get the following error message: dev = twed0s1d, block = 1, fs = /archive panic: ffs_blkfree freeing free block cpuid = 1 Uptime = 11m23s Physical memory: 1011 MB Dumping 67 MB: 52 36 20 4 Dump complete /archive has no files in it as it is an empty filesystem. In fact, it's a seperate spindle from the OS disk. fsck does not resolve the problem: #> umount /archive #> fsck -t zfs /dev/twed0s1d and I've verified that the disks involved don't have bad blocks. Since the machine becomes non-responsive after the dump, I can't access logs or anything to see what happened. Machine is using ASUS P2B-D mainboard (dual 500Mhz PIII Intel), with a 3ware 7000-2 raid card. The 3ware has 2 Maxtor 200GB drives in a RAID-1; these would normally be mounted as /archive. The volume is empty (no files). Google shows lot's of people having similar problems with zfs, but no solutions that I have found yet. Anyone have any ideas? Thanks, John H. Nyhuis IT Manager Dept. of Pediatrics HS RR541C, Box 356320 University of Washington Desk: (206)-685-3884 jnyhuis@u.washington.edu
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