Re: aufs crash at au_set_fbstart in aufs3 (3.4 kernel).

["J. R. Okajima" <hooanon05g@gmail.com>]

Prasad Koya:
> > Has anyone run into this crash with aufs 3? We hit this in production.
	:::
> > <1>[45257161.254682] BUG: unable to handle kernel NULL pointer
> > dereference at 0000000000000038
> > <1>[45257161.351193] IP: [<ffffffff8117a5dc>] au_do_open_nondir+0x3b/0xaf

I don't think it a good idea to post vger.kernel.org ML since aufs is
not mainlined.  It is recommended to post aufs-users ML only, with these
info.

(from aufs README file)
----------------------------------------------------------------------
When you have any problems or strange behaviour in aufs, please let me
know with:
- /proc/mounts (instead of the output of mount(8))
- /sys/module/aufs/*
- /sys/fs/aufs/* (if you have them)
- /debug/aufs/* (if you have them)
- linux kernel version
  if your kernel is not plain, for example modified by distributor,
  the url where i can download its source is necessary too.
- aufs version which was printed at loading the module or booting the
  system, instead of the date you downloaded.
- configuration (define/undefine CONFIG_AUFS_xxx)
- kernel configuration or /proc/config.gz (if you have it)
- behaviour which you think to be incorrect
- actual operation, reproducible one is better
- mailto: aufs-users at lists.sourceforge.net
----------------------------------------------------------------------

Last but not lease, as you surely know, aufs3.4 has been unsupported
since Nov 2013.


J. R. Okajima