[Qemu-devel] [BUG 1.0] Networking in MIPS Malta emulation is broken

[Qemu-devel] [BUG 1.0] Networking in MIPS Malta emulation is broken

[Stefan Weil]

One of my standard tests (booting a MIPS Malta emulation with a
Debian NFS root) no longer works.

Git bisect shows that this commit caused the regression:

commit 5632ae46d5bda798e971dae48ebb318ac2c3686a
Author: Avi Kivity <avi@redhat.com>
Date:   Mon Sep 12 13:00:05 2011 +0300

     mips_malta: move i8259 initialization after piix4 initialization

     i8259 is an ISA device (or at least, depends on the ISA 
infrastructure to
     register its ioport); and the ISA bus is supplied by piix4.  Later 
patches
     make this dependency explicit.

     Use qemu_irq_proxy() to stop the cycle by adding an extra layer of
     indirection.

     Signed-off-by: Avi Kivity <avi@redhat.com>

The test was run with default networking and with an eepro100
network card. In both cases, Linux shows the ethernet devices,
but fails to read init from NFS. I think there are problems
with interrupt handling.

Is there a simple solution? Otherwise I'll examine this issue.
It would be good to get this fixed before 1.0 is released.

Regards,
Stefan