Network IO with virtio-net driver and kvm results in crash

Bug #196943 reported by Amit Shah on 2008-02-29
2
Affects Status Importance Assigned to Milestone
linux-meta (Ubuntu)
Undecided
Unassigned

Bug Description

Binary package hint: linux-image

While trying the kubuntu-kde4 hardy alpha CD within a kvm VM with virtio-net, network activity over the Internet results in a guest crash.

host details: kubuntu gutsy, kernel 2.6.25-rc3, kvm: 62+ (git)

command line to start VM:

qemu-system-x86_64 -m 1024 -vnc :2 -usbdevice tablet -net -drive file=/guests/kubuntu-kde4-hardy.qcow2,if=virtio,boot=on -net nic,model=virtio -net user

This crash did not recur when I installed the 2.6.25-rc3 kernel (with the virtio net module compiled in) in the guest.

The crash scrolled up too quickly for me to capture it; the last line indicated it was in virtnet_poll().

Soren Hansen (soren) wrote :

Do you still see this with an up-to-date hardy kernel and kvm-62 (as found in hardy)?

Changed in linux-meta:
status: New → Incomplete
Amit Shah (am1tshah) wrote :

This is fixed in the 2.6.24-12-generic kernel. Thanks.

Amit Shah (am1tshah) on 2008-08-25
Changed in linux-meta:
status: Incomplete → Fix Released
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