nfs through nullfs

Matthias Andree matthias.andree at
Thu Sep 1 13:26:12 PDT 2005

Suleiman Souhlal <ssouhlal at> writes:

> On Aug 31, 2005, at 12:12 PM, Matthias Andree wrote:
>> OK, to reproduce, three steps apart from having an ext2 file system
>> (the ext2 FS is clean according to e2fsck)
>> mount_ext2fs /dev/ad0s5 /linux
>> mount_nullfs /linux /mnt
>> umount /mnt                    -> panic, "locking against myself"
>> backtrace in the kernel debugger, copied manually:
> Can you try the patch at 
> null_vnops.c-20050831.diff ?

Yup. Tried it, no more panic on umount. Thanks a lot.

Matthias Andree

More information about the freebsd-current mailing list