Public bug reported: This is a Nova tracker for a set of issues being seen in OpenStack CI jobs using QEMU >= 5.0.0 caused by the following change in defaults witin QEMU:
https://github.com/qemu/qemu/commit/600e17b26 https://gitlab.com/qemu-project/qemu/-/issues/693 At present most of the impacted jobs are being given an increased amount of swap with lower Tempest concurrency settings to avoid the issue, for example for CentOS 8 stream: https://review.opendev.org/c/openstack/devstack/+/803706 https://review.opendev.org/c/openstack/tempest/+/797614 Longer term a libvirt RFE has been raised to allow Nova to control the size of the cache: https://gitlab.com/libvirt/libvirt/-/issues/229 ** Affects: nova Importance: Undecided Assignee: Lee Yarwood (lyarwood) Status: New ** Tags: gate-failure ** Description changed: This is a Nova tracker for a set of issues being seen in OpenStack CI jobs using QEMU >= 5.0.0 caused by the following change in defaults witin QEMU: https://github.com/qemu/qemu/commit/600e17b26 https://gitlab.com/qemu-project/qemu/-/issues/693 At present most of the impacted jobs are being given an increased amount - of swap with Tempest concurrency settings to avoid the issue, for + of swap with lower Tempest concurrency settings to avoid the issue, for example for CentOS 8 stream: https://review.opendev.org/c/openstack/devstack/+/803706 https://review.opendev.org/c/openstack/tempest/+/797614 Longer term a libvirt RFE has been raised to allow Nova to control the size of the cache: https://gitlab.com/libvirt/libvirt/-/issues/229 -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to OpenStack Compute (nova). https://bugs.launchpad.net/bugs/1949606 Title: QEMU >= 5.0.0 with -accel tcg uses a tb-size of 1GB causing OOM issues in CI Status in OpenStack Compute (nova): New Bug description: This is a Nova tracker for a set of issues being seen in OpenStack CI jobs using QEMU >= 5.0.0 caused by the following change in defaults witin QEMU: https://github.com/qemu/qemu/commit/600e17b26 https://gitlab.com/qemu-project/qemu/-/issues/693 At present most of the impacted jobs are being given an increased amount of swap with lower Tempest concurrency settings to avoid the issue, for example for CentOS 8 stream: https://review.opendev.org/c/openstack/devstack/+/803706 https://review.opendev.org/c/openstack/tempest/+/797614 Longer term a libvirt RFE has been raised to allow Nova to control the size of the cache: https://gitlab.com/libvirt/libvirt/-/issues/229 To manage notifications about this bug go to: https://bugs.launchpad.net/nova/+bug/1949606/+subscriptions -- Mailing list: https://launchpad.net/~yahoo-eng-team Post to : [email protected] Unsubscribe : https://launchpad.net/~yahoo-eng-team More help : https://help.launchpad.net/ListHelp
