"shutdown -p": (noperiph:aacp0:0:6:0): Device power down failed

[David Wolfskill]

On Wed, Feb 03, 2010 at 06:40:37AM -0800, David Wolfskill wrote:
> Just updated my build machine from r203376 to r203425, which seeme dto
> go well, but after I issued "shutdown -p now" (as I leave the machine
> off when it's not in use), I saw the following on the serial console:
> 
> Uptime: 1m45s
> (noperiph:aacp0:0:0:0): Device power down failed
> (noperiph:aacp0:0:1:0): Device power down failed
> (noperiph:aacp0:0:2:0): Device power down failed
> (noperiph:aacp0:0:3:0): Device power down failed
> (noperiph:aacp0:0:6:0): Device power down failed
> Kernel page fault with the following non-sleepable locks held:
> exclusive sleep mutex AAC I/O lock (AAC I/O lock) r = 0 (0xc56f2130) locked @ /usr/src/sys/dev/aac/aac.c:844
> KDB: stack backtrace:
> db_trace_self_wrapper(c0ca2cb6,e9aefb14,c08d68a5,c0c48d6b,34c,...) at db_trace_self_wrapper+0x26
> ...
> I'll leave the machine in that state so I can poke at it, if there's
> interest in figuring out what's wrong.  My laptop is a bit behind
> the build machine at the moment -- it's just started building the
> stable/8 kernel -- but I expect to be building head on it soon, and
> I'll report if anything interesting turns up.
> 
> And to clarify, at r203376, the build machine handled the poweroff
> request just fine.

Tried the same experiment with the laptop; didn't get the above failure,
but am seeing many (as in "hundreds") of

atapi_poll called!
atapi_poll called!
atapi_poll called!
atapi_poll called!
atapi_poll called!
atapi_poll called!
atapi_poll called!
atapi_poll called!
atapi_poll called!
atapi_poll called!
atapi_poll called!
atapi_poll called!
atapi_poll called!
atapi_poll called!

with an occasional 

t_delta 15.feae7d37eafc8830 too short

or

t_delta 16.045c565d970952d0 too long

tossed in (maybe one of these t_delta whines for every 60 or so
"atapi_poll called!" messages?).

I'll interrupt the laptop & get it up & running again; the build machine
is still at the DDB prompt.  Each is i386 architecture; each was just
upgraded this morning from r203376 to r203425.

Peace,
david
-- 
David H. Wolfskill				david at catwhisker.org
Depriving a girl or boy of an opportunity for education is evil.

See http://www.catwhisker.org/~david/publickey.gpg for my public key.
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