I have the following setup:

   3ware 9550SX-4LP raid card

   4x 500GB SATA HD's in Raid 10.

   It's running on: FreeBSD store01 6.1-RELEASE-p12 FreeBSD
   6.1-RELEASE-p12= #0: Mon Jan 22 11:20:03 UTC 2007

   I use this machine mainly for backups and NFS mount points. The
   problem = is that when I perform backups at night, within 1 hour or so
   the machine re= boots because of kernel panic. The exact error message

   Mar 31 00:29:05 store01 syslogd: kernel boot file is
   /boot/kernel/kernel   Mar 31 00:29:05 store01 kernel: start = 0, len = 
11431, fs =
   Mar 31 00:29:05 store01 kernel: panic: ffs_alloccg: map corrupted
   Mar 31 00:29:05 store01 kernel: Uptime: 2d22h57m30s
   Mar 31 00:29:05 store01 kernel: Cannot dump. No dump device defined.
   Mar 31 00:29:05 store01 kernel: Automatic reboot in 15 seconds - press
   a ke= y on the console to abort

   This has been happening only since I started doing massive backups on
   th= is box ( lots of directories/files ). After reboot, if I run a
   fsck -y on t= he partitions everything turns out fine but with "fixed
   errors" like: Mar 2= 8 03:53:13 store01 fsck: /dev/da0s1f: INCORRECT
   BLOCK COUNT I=28342913 (4= 0 should be 0) (CORRECTED)

   The only other place where I've found a problem very similar to mine
   is:= [1]http://www.nabble.com/kern-35580:-creating-d   
irectories-on-large-UFS2--%3E-boom-t3203420.html  but that is on N   etBSD.

   Does anyone know if what I'm describing is a current bug in FreeBSD
   6.1 = or a problem with the 3ware card or something else.



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