Am 30.08.2018 um 06:37 schrieb Simon Matter <simon.matter at invoca.ch>: > >> Since the update from kernel-2.6.32-754.2.1.el6.x86_64 >> to kernel-2.6.32-754.3.5.el6.x86_64 I can not boot my >> KVM guests anymore!? The workstation panics immediately! >> >> I would not have expected this behavior now (last phase of OS). >> It was very robust until now (Optiplex Workstation). I see some KVM >> related lines in the changelog.diff. Before swimming upstream: >> >> Does some one have problems related to KVM with >> kernel-2.6.32-754.3.5.el6.x86_64 ?? > > Is there any chance that this is related? Could you try downgrading > qemu-img/qemu-kvm and see if it helps? > > https://bugs.centos.org/view.php?id=15067 > Thanks to pointing to that bug report. I downgraded from qemu-kvm-0.12.1.2-2.506.el6_10.1.x86_64 qemu-img-0.12.1.2-2.506.el6_10.1.x86_64 to qemu-img-0.12.1.2-2.503.el6_9.6.x86_64 qemu-kvm-0.12.1.2-2.503.el6_9.6.x86_64 and booted into kernel-2.6.32-754.3.5.el6.x86_64 unfortunately no positiv effect. The system/host/workstation crashes/panics immediately after starting a guest system (EL6) with virsh start guest-name. BTW upstream bug report: https://bugzilla.redhat.com/show_bug.cgi?id=1623692 -- LF