Il 12/12/2013 16:23, Wei Liu ha scritto:
On Thu, Dec 12, 2013 at 02:10:23PM +0100, Fabio Fantoni wrote:
[...]
I did some other tests, I narrowed down the commit range to the one between:
commit c9fea5d701f8fd33f0843728ec264d95cee3ed37 Mon, 22 Jul 2013
15:14:18 (Merge remote-tracking branch 'bonzini/iommu-for-anthony')
where there is virtio net regression with xen
and
commit 962b03fcf509db25c847aa67c4eff574c240dcfe Thu, 4 Jul 2013
15:42:43 +0000 (xen: Mark fixed platform I/O as unaligned)
where virtio net is working
I also tested:
commit 2562becfc126ed7678c662ee23b7c1fe135d8966 Mon, 15 Jul 2013
19:02:41 +0000
and
commit dcb117bfda5af6f6ceb7231778d36d8bce4aee93 Thu, 4 Jul 2013
15:42:46 +0000
but qemu crashes on xl create for another error and I haven't found
which is the commit to apply with git cherry-pick so that I can
check if the virtio net regression is present.
Can someone help me please?
I added also qemu-devel to cc.
I did a quick test with Xen's QEMU, currently at
commit 1c514a7734b7f98625a0d18d5e8ee7581f26e50c
Merge: 79c097d 35bdc13
Author: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
Date: Tue Jun 25 11:34:24 2013 +0000
Merge remote branch 'perard/cpu-hotplug-port-v2' into xen-staging-master-7
from git://xenbits.xen.org/qemu-upstream-unstable.git
My guest is Squeeze with stock kernel 2.6.32.
vif=['model=virtio-net-pci,bridge=xenbr0']
No pci=nomsi in guest kernel command line.
Everything worked fine. And /proc/interrupts shows that it's indeed
using MSI for virtio PCI.
I'm kind of confused. (And in the long run of this thread I probably
didn't remember everything.)
Wei.
I tried with "commit e16435c95be86244bd92c5c26579bd4298aa65a6 (xen_disk:
mark ioreq as mapped before unmapping in error case)" from
git://xenbits.xen.org/qemu-upstream-4.3-testing.git.
There are only 4 commits difference between mine and your test.
FWIK the only other difference is domUs kernel versions, and the msi
problem is probably a regression between kernel 2.6.32 and 3.2 (the
"older" domUs used in my tests was Precise with kernel 3.2).
Tomorrow I'll try also with squeeze.
RIguardo invece l'altra regressione qemu tra il 4 e 22 luglio che da
errore xen mapcache usando virtio net puoi aiutarmi?
Another question: the qemu 1.6 regression between july 4th-22nd commits
(qemu crash on domU kernel load with xen mapcache error with virtio
net), could you help me?
Thanks for any reply.
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