On 08/09/2012 05:42 PM, Andrew Deason wrote: > On Thu, 09 Aug 2012 11:48:25 +0200 > Alexander 'Leo' Bergolth <l...@strike.wu.ac.at> wrote: > >> My box, using openafs-1.6.1 and kernel-2.6.32-131.17.1.el6.i686 on >> Centos 6, just hung completely and had to be rebooted. It looks like >> the problem was caused by a locking problem of the openafs kernel >> module, all processes that e.g. used AFS authentication got stuck >> inside libafs. (See the kernel call-traces below.) > > This would be more useful with a trace of all processes; all those show > is that we're waiting for a lock. You can get that with 'echo t > > /proc/sysrq-trigger'.
It happened again yesterday, unfortunately I couldn't get a trace because the watchdog rebooted the system. Will keep trying.. ;-) Today there was another problem: Several xauth processes hung in disk wait while trying to access an .Xauthority file in AFS. However, in this case, only processes accessing this file blocked, so I don't know if this issue is related. I have captured the call traces at http://leo.kloburg.at/tmp/openafs-1.6.1-hang/ I have also captured a kernel crash dump, which I can provide at request... Thanks for your help, --leo -- e-mail ::: Leo.Bergolth (at) wu.ac.at fax ::: +43-1-31336-906050 location ::: IT-Services | Vienna University of Economics | Austria _______________________________________________ OpenAFS-info mailing list OpenAFS-info@openafs.org https://lists.openafs.org/mailman/listinfo/openafs-info