Re: [Qemu-devel] [Bug 1656234] [NEW] Qemu core dumped if using virtio-net

[Stefan Hajnoczi]

On Fri, Jan 13, 2017 at 08:40:22AM -0000, Robert Hu wrote:
> Public bug reported:
> 
> System Environment
> =======
> Qemu commit/branch: e92fbc75
> Host OS: RHEL7.2 ia32e
> Host Kernel: 4.9.0
> Guest OS: RHEL7.2 ia32e
> Guest Kernel: 4.9.0
> 
> Bug detailed description
> =======
> While create a kvm guest using virtio-net, the qemu will core dump with 
> showing "Aborted (core dumped)".
> Reproduce Steps
> ==============
> create a guest:
> qemu-system-x86_64 -enable-kvm -m 4096 -smp 4 -device 
> virtio-net-pci,netdev=nic0,mac=00:16:3e:49:be:24 -netdev 
> tap,id=nic0,script=/etc/kvm/qemu-ifup -drive 
> file=/ia32e_rhel7u2_kvm.qcow2,if=none,id=virtio-disk0 -device 
> virtio-blk-pci,drive=virtio-disk0 -serial file:serial.log
> 
> Current Result:
> ==============
> 
> qemu-system-x86_64: 
> /workspace/ia32e/nightly/kvm-next-20170105-ef85b6-e92fbc/kvm/qemu/hw/virtio/virtio.c:214:
>  virtio_queue_set_notification: Assertion `vq->notification_disabled > 0' 
> failed.
> Aborted (core dumped)

Thanks for reporting this assertion failure.  A patch is queued and will
be merged soon:
https://lists.gnu.org/archive/html/qemu-devel/2017-01/msg02277.html

Stefan

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