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Re: [Qemu-devel] kvm segfaulting


From: Stefan Priebe - Profihost AG
Subject: Re: [Qemu-devel] kvm segfaulting
Date: Mon, 11 Feb 2013 14:35:09 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130106 Thunderbird/17.0.2

Hi Stefan,

yes i use virtio-scsi-pci in all my guests. As it is the only one where
i can use fstrim from guest to storage with rbd ;-)

Stefan
Am 11.02.2013 14:21, schrieb Stefan Hajnoczi:
> On Mon, Feb 11, 2013 at 2:08 PM, Stefan Priebe - Profihost AG
> <address@hidden> wrote:
>> Hi,
>> Am 11.02.2013 13:48, schrieb Paolo Bonzini:
>>> Il 11/02/2013 10:48, Stefan Priebe - Profihost AG ha scritto:
>>>>     req->resp.cmd->status = status;
>>>>     if (req->resp.cmd->status == GOOD) {
>>>>         req->resp.cmd->resid = tswap32(resid);
>>>>     } else {
>>>>         req->resp.cmd->resid = 0;
>>>>         sense_len = scsi_req_get_sense(r, req->resp.cmd->sense,
>>>>                                        VIRTIO_SCSI_SENSE_SIZE);
>>>>         req->resp.cmd->sense_len = tswap32(sense_len);
>>>>     }
>>>>     virtio_scsi_complete_req(req);
>>>> }
>>>
>>> Can you reproduce this?
>>
>> Sadly no - but i've seen this 3 times in the last 4 weeks. I checked all
>> addresses / dmesg messages and all crashes point to that line.
> 
> Just for sanity, because I never trust addr2line, can you please
> confirm that you are using virtio-scsi in your guest?
> 
> The kvm command-line should contain "-device virtio-scsi-pci".
> 
> Stefan
> 



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