(unknown charset) Re: current + mpt = panic: Bad link elm 0xffffff80002d6480 next->prev != elm

On Tue, Jul 20, 2010 at 01:55:28PM +0200, Stle Kristoffersen wrote:
> On 2010-07-20 at 12:17, Marius Strobl wrote:
> > On Mon, Jul 19, 2010 at 07:06:54PM +0200, Stle Kristoffersen wrote:
> > > On 2010-07-18 at 14:20, Marius Strobl wrote:
> > > > > > Downgrading now...
> > > > > 
> > > > > And it crashed again, with current from r209598...
> > > > > 
> > > > 
> > > > Ok, this at least means that your problem isn't caused by the recent
> > > > changes to mpt(4) as the pre-r209599 version only differed from the
> > > > 8-STABLE one in a cosmetic change at that time.
> > > 
> > > I have another data-point, I cvsup'ed to the latest current again, and
> > > rebuilt without INVARIANT and WITNESS, and now it seems to survive the
> > > timeouts.
> > 
> > That's more or less expected as the sanity check issuing the panic
> > just isn't compiled in then. However, my understanding was that with
> > STABLE you don't get the timeouts in the first place, or do you see
> > them there also?
> 
> I got the timeouts with STABLE as well, that was the reason for me to
> try out CURRENT. I'm sorry I didn't mention that earlier.
> 
> My main concern is to get rid of the timeouts, but a panic on one can't be
> right. How can I debug this further? I can get timeout fairly consistent by
> putting a bit of load on the drives. If it would help I can also provide
> remote access.
> 

FYI, that panic is fixed with r213105.

Marius