https://bugzilla.suse.com/show_bug.cgi?id=1207115 Bug ID: 1207115 Summary: qemu VMs are getting stuck with 6.1 Classification: openSUSE Product: openSUSE Tumbleweed Version: Current Hardware: Other OS: Other Status: NEW Severity: Normal Priority: P5 - None Component: Kernel Assignee: kernel-bugs@opensuse.org Reporter: jslaby@suse.com QA Contact: qa-bugs@suse.de Found By: --- Blocker: --- Created attachment 864078 --> https://bugzilla.suse.com/attachment.cgi?id=864078&action=edit processes in blocked state I was unable to set up kdump properly (see bug 1207114). This was reported upstream as: https://lore.kernel.org/all/b8017e09-f336-3035-8344-c549086c2340@kernel.org/ After I updated the host from 6.0 to 6.1 (being at 6.1.4 ATM), my qemu VMs started stalling (and the host at the same point too). It doesn't happen right after boot, maybe a suspend-resume cycle is needed (or longer uptime, or a couple of qemu VM starts, or ...). But when it happens, it happens all the time till the next reboot. Older guest's kernels/distros are affected as well as Win10. In guests, I see for example stalls in memset_orig or smp_call_function_many_cond. qemu-kvm-7.1.0-13.34.x86_64. I dumped blocked tasks (sysrq-w) on _host_ and everything seems to stall on mmap_read_lock() or mmap_write_lock_killable(). There should be enough free memory (note caches at 8G): total used free shared buff/cache available Mem: 15Gi 10Gi 400Mi 2,5Gi 8,0Gi 5,0Gi Swap: 0B 0B 0B I rmmoded kvm-intel now, so: qemu-kvm: failed to initialize kvm: No such file or directory qemu-kvm: falling back to tcg and it behaves the same (more or less expected). -- You are receiving this mail because: You are the assignee for the bug.