On Fri, 25 Dec 2009 11:28:55 -0500
Michael Breuer [off-list ref] wrote:

  More data points - I'm able to reliably recreate this now.
While I thought it was coincidence, each and every time I hit this issue 
there is a DHCP renew event immediately before the first error.
The crash occurs while under load - in my case seems that the traffic is 
actually IPV6 (hadn't noticed that before).
I ran nethogs on a remote display - the reported rx rate on the IPV6 smb 
connection at the time of the lockup was 33889.688 KB/sec on a 1gbit 
nic. I've got two events like this - don't recall if the earlier one was 
the exact same # - but it was in the ballpark.

On 12/24/2009 2:01 AM, Andrew Morton wrote:

quoted

cc's added again.

On Wed, 23 Dec 2009 17:54:27 -0500 Michael Breuer[off-list ref]  wrote:

   

quoted

Ok - not the firmware.  Ran another Windows backup and sky2 went down.

Nothing in dmesg.old - have oops in syslog. System became unresponsive
and watchdog kicked in after a minute.

Also note that I have a similar oops with VT-D disabled (posted here on
12/5). I'm attaching the oops from that below this oops for comparison.
That also happened under similar load.

On the assumption that I can recreate this (although it takes a while)
please let me know how I can help.

What's in my log (starting with an smbd error about 2 min before the
oops (note: the dchpd is not the system doing the backup).
     

This (nastily wordwrapped) oops appers to be quite different from
Berck's one.

What is the MTU?

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