Re: nfe problem on dom0 kernel 5.99.24 [need help]

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

On Fri, Feb 26, 2010 at 04:44:21AM -0600, Sam Fourman Jr. wrote:
> > If possible, boot with a xen-debug kernel, and post the xm dmesg. Failing to
> > create DMA memory is likely to be due to an error returned by hypervisor.
> >
> > --
> > Jean-Yves Migeon
> > jeanyves.migeon%free.fr@localhost
> >
> here it is
> 
> http://www.puffybsd.com/xm-dmesg.txt
> 
> These lines look weird
> 
> (XEN) traps.c:2180:d0 Domain attempted WRMSR 00000000000001a0 from
> 00000040:60970481 to 00000040:60931c09.
> (XEN) io_apic.c:2192:
> (XEN) ioapic_guest_write: apic=0, pin=2, old_irq=0, new_irq=-1
> (XEN) ioapic_guest_write: old_entry=000009f0, new_entry=00010900
> (XEN) ioapic_guest_write: Attempt to remove IO-APIC pin of in-use IRQ!

No, that's not a problem. This is because the dom0 kernel tries to
reconfigure all interrupt lines, but some of them are already used
by the hypervisor. 

I guess the next thing to trie would be to add some printfs in the
bus_dma code, to see where it's failing exactly ...

-- 
Manuel Bouyer <bouyer%antioche.eu.org@localhost>
     NetBSD: 26 ans d'experience feront toujours la difference
--