Syslog suggests the interface is brought down then up but no interrupt at 
the irq assigned. Need to enable more debug and make sure the interrupt is 
wired properly.

-----Original Message-----
From: Michael S. Tsirkin [mailto:m...@redhat.com] 
Sent: Monday, September 16, 2013 7:36 AM
To: Bret Ketchum
Cc: Qemu-devel@nongnu.org; kra...@redhat.com
Subject: Re: Q35 FreeBSD install status

On Mon, Sep 16, 2013 at 12:28:41PM +0000, Bret Ketchum wrote:
> 
>      As a workaround until I can uncover the qemu/FreeBSD AHCI/SATA issue, I 
> simply create a legacy IDE to hang the CD and HD from:
> 
>     -device piix4-ide \
>     -drive 
> if=none,file=/home/ehv/images/FreeBSD-9.1-RELEASE-amd64-dvd1.iso,id=drive-ide0-0-0
>  \
>     -device ide-cd,bus=ide.0,drive=drive-ide0-0-0,id=ide0-0-0 \
>     -drive 
> if=none,file=/home/ehv/images/r060501.img,format=raw,id=drive-ide0-0-1 \
>     -device ide-hd,bus=ide.0,drive=drive-ide0-0-1,id=ide0-0-1 \
> 
>     But now the e1000 emulated network device under q35 does not seem to pass 
> interrupts. Using:
> 
>     -netdev 
> tap,id=hostnet0,script=/home/ehv/images/qemu-ifup,downscript=/home/ehv/images/qemu-ifdown
>  \
>     -device e1000,netdev=hostnet0 \
> 
>     Or a user network:
> 
>     -netdev user,id=hostnet0,net=192.168.76.0/24,dhcpstart=192.168.76.9 \
> 
>     But machine pc-i440fx-1.6 works just fine. Anyone have any
>     thoughts on where to start looking or a possible workaround?

Maybe irq gets asserted, but guest does not have a handler?
Take a look at system log, that might give some hints.


-- 
MST

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