On Tue, Jun 8, 2021 at 6:31 AM Ahmed S. Darwish <a.darwish@xxxxxxxxxxxxx> wrote: > > On Mon, Jun 07, 2021, Christoph Mathys wrote: > > > > When running kvm 5.2 on 4.9-rt (I've yet to verify if !RT is also > > affected), kvm gets stuck regulary requiring a reboot. I get the > > hung_task warning below. > > > > Any thoughts on how to avoid this problem? > > > > Did you try running the same configuration with lockdep ON? Along with Ahmed's suggestion, would you mind testing with v4.9.271-rt182? Also, is there any extra step to reproduce this problem or simply firing up a VM is enough to trigger the problem? Luis