9.2-RELEASE Kernel panic, mbuf underflow

[Shawn Wallbridge]

I have a file server that keeps panic’ing with a mbuf cluster in the 17 Quadrillion range (2^64 - 2). I am pretty sure it’s a buffer underflow.

I have opened a PR, but I haven’t had any movement on it. This happened while I was running 9.1-RELEASE as well.

Here is the PR..

http://www.freebsd.org/cgi/query-pr.cgi?pr=183424

And I have uploaded the crash dumps here..

http://www.wallbridge.net/crash/

If anyone has any ideas, I would be grateful as this is a production box and it’s really impacting us. 

shawn