[OpenAFS] AFS client hanged

[Stephan Wiesand]

Hi Andreas,

> On 18. Dec 2019, at 10:48, Andreas Ladanyi <andreas.ladanyi@kit.edu> =
wrote:
>=20
> Hi,
>=20
>>> kernel-2.6.32-696.20.1.el6.x86_64. After we upgrade to the new linux =
kernel and install the default openafs client version using yum(the =
version we used listed in the following), we have the hang issue. That's =
why I suspect the version compatibility.
>>> AFS clinet--sl7 : l.6.23
>>> [root@bws0825 ~]# rpm -qa|grep openafs
>>> openafs-1.6-sl-client-1.6.23-289.sl7.x86_64
>>> openafs-1.6-sl-authlibs-1.6.23-289.sl7.x86_64
>>> openafs-1.6-sl-devel-1.6.23-289.sl7.x86_64
>>> openafs-1.6-sl-module-tools-1.6.23-289.sl7.x86_64
>>> openafs-1.6-sl-krb5-1.6.23-289.sl7.x86_64
>>> openafs-1.6-sl-1.6.23-289.sl7.x86_64
>>> openafs-1.6-sl-authlibs-devel-1.6.23-289.sl7.x86_64
>>> kmod-openafs-1.6-sl-957-1.6.23-289.sl7.957.x86_64
>>>=20
>>> AFS client-SL6: 1.6.23
>>> openafs-krb5-1.6.23-289.sl6.x86_64
>>> openafs-client-1.6.23-289.sl6.x86_64
>>> openafs-1.6.23-289.sl6.x86_64
>>> openafs-kpasswd-1.6.23-289.sl6.x86_64
>>> openafs-module-tools-1.6.23-289.sl6.x86_64
>>> openafs-kernel-source-1.6.23-289.sl6.x86_64
>>> openafs-firstboot-1.6-1.sl6.noarch
>>> openafs-authlibs-1.6.23-289.sl6.x86_64
>>> kmod-openafs-1.6.22.3-1.SL610.el6.noarch
>>> openafs-compat-1.6.23-289.sl6.x86_64
>>>=20
> What i could see here is a version difference between kmod-openafs =
1.6.22 and openafs-client 1.6.23

While 1.6.23 was a security update and yes, this looks kind of manual, =
it shouldn't matter.

> Does the issue appear on one client only or all clients which are =
upgraded ?

We run these packages on a lot of SL6 and SL7 systems, and the issue =
reported here at least isn't common. We seem to have a project with a =
usage pattern able to provoke hangs though. That has yet to be =
investigated. It was about something like using zsh tab completion in a =
git repo...