So, if I am not using virsh, would it be sufficient to just remove audio devices from my shell script that starts qemu? I am also not using them and just thought I need to pass them to make AMD drivers happy. I am happy with virtual audio provided by QEMU (and have multiple cards so wiring their audio output to some speakers would be a project just by itself)
On Wed, Feb 17, 2016 at 2:30 PM, Alex Williamson <[email protected] > wrote: > On Wed, 17 Feb 2016 22:41:53 +0100 > Jens Zimmermann <[email protected]> wrote: > > > Hello guys! > > > > I have a Windows 10 VM with GPU passsthrough working for around 2 months > > now and while there were no problems in the very beginning as far as I > can > > tell, soon after the VM started to freeze my Linux sometimes after I shut > > it down. > > The strange thing is that it does not happen every time. It seems like it > > usually happens when the VM was running for quite some time like an hour > or > > two. > > I thought it may be the Windows shut down which is by default some kind > of > > hibernate, so I shut down Windows by using the command "shutdown /s /t0", > > but that did not help. I also tried force stopping the VM, that led to a > > freeze as well. > > > > I presume the error is caused by Linux not being able to integrate the > > virtual/passed through hardware into the system again somehow. Perhaps > it's > > the memory since the freezes usually happen when the VM was running for > > some time, but this is just a wild guess, I am no linux expert at all. > > > > This is journalctl of the most recent freeze, VM was started at 20:13 and > > shut down at 21:09, followed by a freeze: http://pastebin.com/mwQsFsKB > > In comparison this time it did not freeze, start at 21:33, finishes at > > 21:55: http://pastebin.com/YGPnVPBD > > > > My setup: i7-5820k, ASRock x99 Extreme 4, 16GB RAM, nvidia 210 & 750 Ti, > > two monitors, mice and keyboards, Manjaro 15.12 with kernel 4.1, qemu > > 2.4.1-2, libvirt 1.3.1-2, virt-manager 1.3.2-2 > > qemu xml: http://pastebin.com/WPupqDEv > > > > I would be glad to provide you more information, just tell me what you > want > > and how I can get it. > > > > I really appreciate any suggestion, I am out of ideas now. > > I'd be suspicious of any devices that you're assigning that gets > re-bound to host drivers when the VM is shutdown. I see from the XML > that you're not only assigning the GPU audio, but 00:1b.0 on the system > as well, which I'd guess is the onboard audio. You can bind all the > assigned devices with virsh nodedev-detach and then set managed='no' in > the xml to make sure they don't get re-attached to host drivers. > > _______________________________________________ > vfio-users mailing list > [email protected] > https://www.redhat.com/mailman/listinfo/vfio-users >
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