Re: [Qemu-devel] [BUG]Unassigned mem write during pci device hot-plug

[Michael S. Tsirkin]

On Sat, Dec 08, 2018 at 11:58:59AM +0000, xuyandong wrote:
> Hi all,
> 
>  
> 
> In our test, we configured VM with several pci-bridges and a virtio-net nic
> been attached with bus 4,
> 
> After VM is startup, We ping this nic from host to judge if it is working
> normally. Then, we hot add pci devices to this VM with bus 0.
> 
> We  found the virtio-net NIC in bus 4 is not working (can not connect)
> occasionally, as it kick virtio backend failure with error below:
> 
>     Unassigned mem write 00000000fc803004 = 0x1

Thanks for the report. Which guest was used to produce this problem?

-- 
MST