Re: run interrupt driven hooks: still waiting for xpt_config

On Sat, 8 Aug 2009 12:02:41 +0100 (BST)
Robert Watson <rwatson_at_FreeBSD.org> wrote:

> On Sat, 8 Aug 2009, Marc UBM Bocklet wrote:
> 
> >>>>> I've got it narrowed down between "2009.06.30.06.00.00" and
> >>>>> today. A kernel with the "old" date boots, a freshly csupped
> >>>>> and compiled kernel hangs with the usual symptoms (waiting for
> >>>>> interrupt driven hooks).
> >>>>>
> >>>>> I'll try csupping to just before the big cam commit to see if
> >>>>> there is any connection. When I said earlier that I was not
> >>>>> running with the ahci patch, I was partly wrong. I did not have
> >>>>> device ahci in my kernel config file nor had it loaded as a
> >>>>> module, but I had the patch applied.
> >>>>
> >>>> "2009.07.09.06.00.00" fixes the problem. Could it be that there
> >>>> are some subtle interactions in the cam subsystem that are
> >>>> stirred by the recent mega-commit?
> >>>
> >>> Is there any other info I can / should provide to help debugging
> >>> this?
> >>
> >> Any news on this? This pretty much prevents me from running 8.0 :-/
> >
> > I've a friend with a similar problem (also HighPoint controller,
> > also "run interrupt driven hooks: still waiting for xpt_config"),
> > who gets a panic. I'll try to get the panic string and a backtrace,
> > if I do, I'll post it here.
> 
> xpt_config basically means that you're waiting on a device driver
> attached to CAM to finish probing, which could point at a number of
> potential problem sources (including things like interrupt routing
> problems).  At least in the 7.x line, I've seen firewire and USB at
> various times cause this issue.  It might be interesting to compile
> down to the smallest set of cam-related drivers required to support
> necessary hardware (omit firewire, for example) and see if you see
> any improvement.  Pinning it down to a specific driver would have
> significant debugging value :-).

Thanks a lot for the suggestion, I'll be on holiday for one week
starting tomorrow, I'll try narrowing it down as soon as I'm back :-)

Bye
Marc

-- 
"And what rough beast, its hour come round at last,
Slouches towards Bethlehem to be born?"

W.B. Yeats, The Second Coming