[OpenAFS-devel] 1.8.11pre1 client hanging on Linux 6.7

[Benjamin Kaduk]

On Sat, Jan 20, 2024 at 06:37:20PM +0100, Michael Laß wrote:
> Hi all,
> 
> I am testing the OpenAFS client version 1.8.11pre1 on Linux 6.7 and
> cannot get it to work. The dynroot in /afs is filled but as soon as I

(Obligatory note that 1.8.11pre1 is still in the process of being
published, though I do not expect the contents of it to change.)

> try to access my test cell (/afs/fritz.box), the access just hangs
> forever. The accessing program (such as ls) cannot be interrupted until
> I force a network disconnect between my client and the server. Going
> back to Linux 6.6.12 solves the issue.
> 
> I'm not sure how to debug this further. This is what `cmdebug
> localhost` shows on the client, while ls is hanging:
> 
> 
> Lock afs_discon_lock status: (none_waiting, 1 read_locks(pid:0))
> ** Cache entry @ 0xf4e11100 for 0.1.16777984.1 [dynroot]
>     locks: (none_waiting, write_locked(pid:6924 at:599))
>               20 bytes  DV            1  refcnt     2
>     callback 00000000	expires 0
>     0 opens	0 writers
>     mount point
>     states (0x5), stat'd, read-only
> 
> 
> Do you have any idea what could cause this issue or how I could debug
> this further?

I would try `echo t | sudo tee /proc/sysrq_trigger` to get information
about hung threads printed to the console.

-Ben