siisch0: Timeout on slot 30

[Ed S]

> I found this in the webcvs and thought there might some relation -
> although im not seeing the panic:
> 
> http://lists.freebsd.org/pipermail/freebsd-fs/2010-September/009438.html
> Revision 1.1.2.30: download - view: text, markup, annotated - select
> for diffs
> Thu Sep 30 04:23:03 2010 UTC (6 months, 1 week ago) by mav
> Branches: RELENG_8
> Diff to: previous 1.1.2.29: preferred, colored; branchpoint 1.1:
> preferred, colored
> Changes since revision 1.1.2.29: +8 -5 lines
> SVN rev 213293 on 2010-09-30 04:23:03Z by mav
> 
> MFC r212732:
> Fix panic, when due to some kind of congestion on FIS-based switching
> port multiplier some command triggers false positive timeout, but
> then
> completes normally.
> 
> Also saw this was the list where mav@ posted a patch previously, i
> dont see anything in the commit logs that might fix this issue in
> current/head.  But might boot it up and see...
> 
> Thanks,
> 
> Ed

After doing a bit more digging, it seems that the below has fixed it for my shelf - so far.... :)

hint.siisch.0.sata_rev=1

I was only ever seeing timeouts on siisch0 so assume i dont need to limit any further channels...

Thanks,

Ed