Subject: Re: vhost changes (batched) in linux-next after 12/13 trigger random crashes in KVM guests after reboot

From: Christian Borntraeger <[email-masked]>
Date: Tue, 11 Feb 2020 10:56:30 +0100

On 11.02.20 10:33, Eugenio Pérez wrote:
> On Mon, 2020-02-10 at 12:01 +0100, Christian Borntraeger wrote:
>>
>> On 10.02.20 10:47, Eugenio Perez Martin wrote:
>>> Hi Christian.
>>>
>>> I'm not able to reproduce the failure with eccb852f1fe6bede630e2e4f1a121a81e34354ab commit. Could you add more data?
>>> Your configuration (libvirt or qemu line), and host's dmesg output if any?
>>>
>>> Thanks!
>>
>> If it was not obvious, this is on s390x, a big endian system.
>>
> 
> Hi Christian. Thank you very much for the hints.
> 
> Could we add some debug traces? Something like the inline patch should give us some clues.

attached. this time the guest crashed (and no guest moved message)