------- Comment From [email protected] 2018-08-30 10:29 EDT------- Thanks, I've asked for some testing assistance from our KVM team but will note here some of the details from the original report of this problem..
repro steps are just a simple local host migration. ..they later noted that increasing the speed was a workaround: (qemu) migrate_set_speed 1G so you would want to test w/ default speed to confirm the issue is resolved (qemu) migrate -d tcp:localhost:4444 using " cosmic qemu version 1:2.12+dfsg-3 " from Bug 169712 / LP 1781526 (which enables qemu to use 2MB THP backing for powerpc), plus the test kernel build from this bug. Note without the kernel fix discussed in this bug, a migration problem might still happen even without that qemu THP patch if you got lucky enough to have a 2MB alignment by chance. ** Tags added: architecture-ppc64le bugnameltc-170805 severity-critical targetmilestone-inin--- -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1788098 Title: Avoid migration issues with aligned 2MB THB To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1788098/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
