atapicam prevents boot, system hangs

[John Baldwin]

On Wednesday 16 March 2005 02:39 pm, Harry Coin wrote:
> If atapicam is included Freebsd 5.3 release, 5.4 pre1 and 5.4 pre 2 will
> hang just before the SMP startup notice in the dmesg trace.  If atapicam is
> removed then the system boots normally.   The message it hangs on in place
> of the SMP message is an interrupt storm on int 18: em0 and
> uhci2++.  Scrolling still works, no recovery ever happens.
>
> System is a P4 Asus P4C800-E, no AGP video, digital camera disks on the USB
> port .
>
> Full dmesg and conf file details at:
>
> You can access the state of your problem report at any time
> via this link:
>
> http://www.freebsd.org/cgi/query-pr.cgi?pr=78929
>
>  >Category:       i386
>  >Responsible:    freebsd-i386
>  >Synopsis:       atapicam prevents boot, system hangs
>  >Arrival-Date:   Wed Mar 16 19:00:08 GMT 2005
>
> I'm a bit of a newbie to all this, hope I've posted notices the right way
> to the right spots.
>
> HTH
>
> Harry Coin
>
> Harry Coin
> N4 Communications
> http://www.n4comm.com

It would be useful to see a dmesg from the kernel with atapicam if possible 
(use a serial console to capture it).  Also, does the kernel with atapicam 
boot ok if you disable the APIC via by doing 'set hint.apic.0.disabled=1' in 
the loader before booting the kernel?

-- 
John Baldwin <jhb at FreeBSD.org>  <><  http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve"  =  http://www.FreeBSD.org