[OpenAFS-devel] Linux 2.6.12 kernel BUG at fs/namei.c:1189

[chas williams - CONTRACTOR]

In message <87fyp0h0fb.fsf@windlord.stanford.edu>,Russ Allbery writes:
>
>        BUG_ON(victim->d_parent->d_inode != dir);
>

this mountpoint wouldn't happen to be mounted multiple times would it?
this really upsets the linux fs stack.  it doesnt like afs directories
that are mounted in multiple places (lookup does a bit of work to
prevent directory dentries getting multiple "aliases") since this can
deadlock when locking directories apparently (as i recall).

i could see a problem if you lookup the mountpoint first in different
parent dir, then you move it from a different directory to a new
directory, the mountpoint's parent is not going to be the directory
its currently in.  i cant seem to duplicate this though.  i think
check_bad_parent() should catch this (except for when the parent volid
dont change).

what afs version are you running?

can you be more specific about duplicating this problem?