amd64/88020: cannot boot unless: hint.apic.0.disabled="1" is set on xSeries336

[John Baldwin]

On Tuesday 26 February 2008 06:23:05 am gavin at freebsd.org wrote:
> Synopsis: cannot boot unless: hint.apic.0.disabled="1" is set on xSeries336
> 
> State-Changed-From-To: suspended->open
> State-Changed-By: gavin
> State-Changed-When: Tue Feb 26 10:44:43 UTC 2008
> State-Changed-Why: 
> Unsuspend, I've found other people with the same issue.  Both
> <mich at freebsd.org> and <avleeuwen at gmail.com> confirm that
> disabling the built-in network interface allows the machine to boot
> 6.x.  Apparently, this is resolved in at least 7.0-RC2 amd64 (according to
> 
http://docs.FreeBSD.org/cgi/mid.cgi?6eb82e0711060722g2a7876ccrd3eaf8912f5e84fa )
> 
> 
> Responsible-Changed-From-To: freebsd-i386->freebsd-amd64
> Responsible-Changed-By: gavin
> Responsible-Changed-When: Tue Feb 26 10:44:43 UTC 2008
> Responsible-Changed-Why: 
> This seems to be amd64 specific.  FreeBSD/i386 seems to work fine
> on this hardware.
> 
> http://www.freebsd.org/cgi/query-pr.cgi?pr=88020

I don't see this being amd64 specific at all.  The interrupt code on i386 and 
amd64 is identical (and the APIC code for that matter).  I would be curious 
what happens with a newer snap (such as 6.3) and for a verbose dmesg from a 
boot with APIC enabled.

-- 
John Baldwin