Re: Disk-related hangs since 11.0 upgrade

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

On Sun, Oct 11, 2026 at 11:08:52AM +0300, Staffan Thomen wrote:
> On 11.10 11:06, Manuel Bouyer wrote:
> > On Sun, Oct 11, 2026 at 10:55:04AM +0300, Staffan Thomen wrote:
> > > As I can access the SOL console and ddb, but don't know how to find
> > > out what's hanging I would appreciate some suggestions for when this
> > > happens next.
> > 
> > If you can enter ddb you could use 'ps' to list processes and their
> > wait channels.
> > 
> 
> Yep, got as far as running ps. There was a lot there; what should I be
> looking for?

Hard to tell ... one starting point could be looking at a process
which you known is hung with ps/a. This will give you its proc structure
address. Then you can get a stack trace with tr/a

Another way, if you see lots of processes waiting on tstile,
would be to start with show all tstiles. Once you found the lwp which
holds the lock causing the hang, get a stack trace of it.

-- 
Manuel Bouyer <bouyer%antioche.eu.org@localhost>
     NetBSD: 26 ans d'experience feront toujours la difference
--