[OpenAFS] some older openafs-client versions have started failing

Chad William Seys cwseys@physics.wisc.edu
Fri, 15 Jul 2016 16:22:11 -0500

Hi all,

Thanks to your help, I reverted to a previous version of the Debian 
kernel and was able to successfully git clone the troublesome repository.

A working version of the Jessie kernel is:

Linux mcd-db 3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt11-1+deb8u5 
(2015-10-09) x86_64 GNU/Linux

 > I am dismissive of the notion that the server's kernel version
 > matters since all of the fileserver code is in userland.

I was vaguely hypothesizing that some networking code changed and goofed 
networking up in some way that AFS depends on, but not much else.  (Not 
much of a hope?)

 > Can you please provide actual exact (debian) versions, for both the
 > openafs-client and kernel?  Attempting to say anything without them
 > would require some level of speculation.

See table below....

----------- NOT WORKING ---
1.6.1-3+deb7u6     wheezy 3.2.81-1
1.6.9-2+deb8u4     jessie 3.16.7-ckt25-2
1.6.9-2+deb8u5     jessie 3.16.7-ckt25-2
1.6.14-1           jessie 3.16.7-ckt25-2
1.6.15-1           jessie 3.16.7-ckt25-2
----------- WORKING ---
1.6.9-2+deb8u5     Jessie 3.16.7-ckt11-1+deb8u5
1.6.16             no debian package
1.6.17-2           jessie 3.16.7-ckt25-2

So what next?
Should I be narrowing down which Debian kernel update broke AFS and 
report it against their kernel package?

 > I believe the Debian and Scientific Linux issues are unrelated because
 > the symptoms are so different.

You're most likely right!  I tried Scientific Linux again today and 
1.6.9 and 1.6.15 from .src.rpm were fine. :/

Thanks again for your help!