9.2-RC1: LORs / Deadlock with SU+J on HAST in "memsync" mode

[Konstantin Belousov]

On Thu, Aug 22, 2013 at 10:21:21AM +0200, Yamagi Burmeister wrote:
> Hello,
> attached is a file with the transcript of a dd session containing:
> - ps
> - trace
> - show pcpu
> - show allpcpu
> - show locks
> - show alllocks
> - show lockedvnods
> - alltrace
> If the attachement is eaten by mailman the file can be found here:
> http://deponie.yamagi.org/freebsd/debug/lor_hast/ddb2.txt
> 
> This is my first deadlock debug session. So if anything is still
> missing please tell me.
> 
This has absolutely nothing to do with the deadlock we trying to catch.
On your case, it seems that all i/o on the box is stalled, and my guess
is that hastd just recursed waiting for some i/o completion which requires
working hastd to finish.

Talk to hastd author(s) about this.
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