[OpenAFS] kernel panics in afs_GetDCache

[Jack Neely]

Folks,

I'm seeing regular kernel panics on our apache web servers.  The servers
are RHEL 5.4 with kernel version 2.6.18-164.11.1.el5 or at least
2.6.18-164.*.  They are running OpenAFS 1.4.11.  It appears to always be
afs_GetDCache:

EIP: [<f8bebfd9>] afs_GetDCache+0x1c0a/0x2d6d [libafs] SS:ESP 0068:f78f2e68

    http://www4.ncsu.edu/~jjneely/getdcache.jpg

I'm using the options:

    -stat 2000 -dcache 800 -daemons 3 -volumes 70 -nosettime -memcache
-afsdb

and I'm thinking that the high volume apache server is busting its
cache.  (Most of those arguments have been used...historically at this
point.)  

Am I going in the right direction with this, or is this panic being
caused by something else?

Jack
-- 
Jack Neely <jjneely@ncsu.edu>
Linux Czar, OIT Campus Linux Services
Office of Information Technology, NC State University
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