Based on the fact that flush_tlb_page() appears to be taking up most of the CPU time when QEMU is 'frozen' I started playing with memory settings. Disabling automatic NUMA balancing appears to have solved the problem. echo 0 > /proc/sys/kernel/numa_balancing
The guest has been running 4+ hours now without an issue. I currently have KSM and transparent huge pages enabled. -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu in Ubuntu. https://bugs.launchpad.net/bugs/1322441 Title: QEMU Windows guest unstable after random amount of time To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1322441/+subscriptions -- Ubuntu-server-bugs mailing list [email protected] Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
