4.10 panic: ffs_alloccg: map corrupted

Kris Kennaway kris at FreeBSD.org
Sun Sep 12 10:26:40 PDT 2004


On Sun, Sep 12, 2004 at 01:18:02PM -0400, Anish Mistry wrote:
> I'm running 4.10 on my main desktop and I've been getting a weird FFS panic, 
> and just finally got a dump of it.
> 
> IdlePTD at physical address 0x008af000
> initial pcb at physical address 0x002eb960
> panicstr: lockmgr: locking against myself
> panic messages:
> ---
> panic: ffs_alloccg: map corrupted
> 
> syncing disks... 71 9 4 4 4 4 4 4 4 panic: lockmgr: locking against myself
> Uptime: 13h52m35s
> 
> dumping to dev #ad/0x20001, offset 230592
> dump ata0: resetting devices .. done
> 
> See the attached file for the rest of the dump and the backtrace.

Try booting to single user mode and run fsck -f on all your
filesystems.  if it find errors, keep running fsck -f until it stops
reporting them.  Sometimes fsck can fail to repair all of the
corruption and you'll get runtime panics.

Kris


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