9.1-stable crashes while copying data from a NFS mounted directory

[Konstantin Belousov]

On Thu, Jan 24, 2013 at 08:03:59PM +0200, Konstantin Belousov wrote:
> On Thu, Jan 24, 2013 at 06:05:57PM +0100, Christian Gusenbauer wrote:
> > Hi!
> > 
> > I'm using 9.1 stable svn revision 245605 and I get the panic below if I execute the following commands (as single user):
> > 
> > # swapon -a
> > # dumpon /dev/ada0s3b
> > # mount -u /
> > # ifconfig age0 inet 192.168.2.2 mtu 6144 up
> > # mount -t nfs -o rsize=32768 data:/multimedia /mnt
> > # cp /mnt/Movies/test/a.m2ts /tmp
> > 
> > then the system panics almost immediately. I'll attach the stack trace.
> > 
> > Note, that I'm using jumbo frames (6144 byte) on a 1Gbit network, maybe that's the cause for the panic, because the bcopy (see 
> > stack frame #15) fails.
> > 
> > Any clues?
> I tried a similar operation with the nfs mount of rsize=32768 and mtu
> 6144, but the machine runs HEAD and em instead of age. I was unable to
> reproduce the panic on the copy of the 5GB file from nfs mount.
> 
> Show the output of "p *(struct uio *)0xffffff81b2da95a0" in kgdb.

And the output of "p *(struct buf *)0xffffff816fabca20".
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 834 bytes
Desc: not available
URL: <http://lists.freebsd.org/pipermail/freebsd-stable/attachments/20130124/65d21392/attachment.sig>