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#openstack-nova - 2019-08-30
09:03:54 kashyap (It's a different approach to existing impl.)
09:04:07 sean-k-mooney ok
09:08:04 sean-k-mooney at this point if qemu supported a virtual device that had sriov support we would have everything we need to be able to test sriov in the gate
09:08:40 sean-k-mooney well assuming we lanned all the reuqired changes in openstack and a cloud provier or two ran that version and hadn the correct flavors
09:10:00 kashyap sean-k-mooney: QEMU supporting an emulated SRIOV device is the key bit -- needs someone familiar with a card to implement it.
09:10:11 kashyap I won't count on it, though
09:10:30 sean-k-mooney there were patches for it before
09:10:34 sean-k-mooney they just never landed
09:11:32 sean-k-mooney kashyap: https://github.com/knuto/qemu
09:11:50 kashyap sean-k-mooney: Yes, I know the author. He works for Oracle
09:12:00 kashyap Last I checked he had a student working on it...but the student left
09:12:23 kashyap Knut ('knuto') introduced the supporting infrastructure for adding an emulated SRIOV card
09:22:53 openstackgerrit Luyao Zhong proposed openstack/nova master: object: Introduce Resource and ResouceList objs https://review.opendev.org/678448
09:22:54 openstackgerrit Luyao Zhong proposed openstack/nova master: Add resources dict into _Provider https://review.opendev.org/678449
09:22:54 openstackgerrit Luyao Zhong proposed openstack/nova master: Retrive the allocations early https://review.opendev.org/678450
09:22:55 openstackgerrit Luyao Zhong proposed openstack/nova master: Claim resources in resource tracker https://review.opendev.org/678452
09:22:55 openstackgerrit Luyao Zhong proposed openstack/nova master: libvirt: Enable driver configuring PMEM namespaces https://review.opendev.org/678453
09:22:56 openstackgerrit Luyao Zhong proposed openstack/nova master: libvirt: report VPMEM resources by provider tree https://review.opendev.org/678454
09:22:56 openstackgerrit Luyao Zhong proposed openstack/nova master: libvirt: Support VM creation with vpmems and vpmems cleanup https://review.opendev.org/678455
09:22:57 openstackgerrit Luyao Zhong proposed openstack/nova master: Parse vpmem related flavor extra spec https://review.opendev.org/678456
09:22:57 openstackgerrit Luyao Zhong proposed openstack/nova master: Add functional tests for virtual persistent memory https://review.opendev.org/678470
09:26:10 openstackgerrit Luyao Zhong proposed openstack/nova master: Retrive the allocations early https://review.opendev.org/678450
09:26:10 openstackgerrit Luyao Zhong proposed openstack/nova master: Claim resources in resource tracker https://review.opendev.org/678452
09:26:11 openstackgerrit Luyao Zhong proposed openstack/nova master: libvirt: Enable driver configuring PMEM namespaces https://review.opendev.org/678453
09:26:11 openstackgerrit Luyao Zhong proposed openstack/nova master: libvirt: report VPMEM resources by provider tree https://review.opendev.org/678454
09:26:12 openstackgerrit Luyao Zhong proposed openstack/nova master: libvirt: Support VM creation with vpmems and vpmems cleanup https://review.opendev.org/678455
09:26:12 openstackgerrit Luyao Zhong proposed openstack/nova master: Parse vpmem related flavor extra spec https://review.opendev.org/678456
09:26:13 openstackgerrit Luyao Zhong proposed openstack/nova master: Add functional tests for virtual persistent memory https://review.opendev.org/678470
09:30:56 openstackgerrit Balazs Gibizer proposed openstack/nova master: Add cold migrate and resize to nova-grenade-multinode https://review.opendev.org/679210
09:37:18 openstackgerrit Stephen Finucane proposed openstack/nova master: Provide HW_CPU_X86_AMD_SEV trait when SEV is supported https://review.opendev.org/638680
09:39:59 sean-k-mooney just tested the v22 iteration of artoms patches and its still working correctly
09:49:23 openstackgerrit Brin Zhang proposed openstack/nova master: Add operator user_id/project_id to the migrations https://review.opendev.org/679413
10:08:10 sean-k-mooney for those not on the neutron channel i just confrimed that cold migration and live migration with vnic_type=direct-physical is broken
10:09:40 sean-k-mooney there are at least two related issues, 1 we do not update the mac on migration and second we do not correctly find the device to detach it on live migration
10:09:58 sean-k-mooney live migration also like has the first issue but its failing before it gets that far
10:12:55 sean-k-mooney it looks like detach works correctly for suspend and the live migration code should be useing the same fucntion i think but maybe its not
10:14:35 sean-k-mooney im going to try and fix this next week and ill file the upstream bug shortly. i think the cold migration behavior is broken all the way back to queens. the live migration behavior is obviouly new since we added that this cycle
10:25:12 stephenfin aspiers: Hit that whole SEV series. Couple of comments left, but ping me when you've tackled them and I'll re-review
10:36:51 artom sean-k-mooney, hey, so how feasible would be to hack together a tempest job that runs https://review.rdoproject.org/r/#/c/18832/ on that new FN flavor?
10:36:57 artom ('morning!)
10:37:34 sean-k-mooney artom: well my nfv test job did actully work a few months ago so i could make it work on FN pretty quick
10:37:42 sean-k-mooney as in today
10:37:54 sean-k-mooney but im currently reworking functional test
10:38:07 sean-k-mooney want me to give it ago when im done
10:38:52 artom sean-k-mooney, that'd be awesome :) whitebox needs a bunch of configs to be set, I can help with those
10:39:26 artom https://review.opendev.org/#/c/678887/ failed with KVM errors, so I'm trying think of other possibilities
10:39:54 sean-k-mooney ya well first thing would be to just get it stacking multinode with a few smoketests. then we can add the plugin
10:40:47 artom Right, baby steps :)
10:40:58 sean-k-mooney artom: i dont see errors in the n-cpu log
10:41:15 sean-k-mooney oh multinode
10:41:40 sean-k-mooney still no erros on the other node
10:42:03 artom sean-k-mooney, no, they're in the qemu logs
10:42:06 artom ex: https://zuul.opendev.org/t/openstack/build/905b52e0b1e84532944f0606b5455381/log/logs/subnode-2/libvirt/qemu/instance-00000005.txt.gz
10:42:33 sean-k-mooney oh thats the kernel bug i mentioned to donnyd
10:42:54 sean-k-mooney actully may be not
10:43:12 sean-k-mooney it could be but that looks like an issue with the cpu model
10:43:29 donnyd i am using host-passthrough on nova
10:43:41 sean-k-mooney its checking for svm with is amds version of vt-x
10:43:54 sean-k-mooney donnyd: ya this is on vexhost
10:44:01 sean-k-mooney but i think this is a different issue
10:44:07 donnyd oh
10:44:25 sean-k-mooney ya so
10:44:27 sean-k-mooney [libvirt]
10:44:28 sean-k-mooney live_migration_uri = qemu+ssh://stack@%s/system
10:44:30 sean-k-mooney cpu_mode = none
10:44:32 sean-k-mooney virt_type = kvm
10:45:04 sean-k-mooney we should be setting cpu_mode=custom and cpu_model=kvm64 in devstack
10:45:22 sean-k-mooney with cpu_mode=none we default to host-model
10:45:40 sean-k-mooney but host-model does not always detect the capablity proably espcailly with nested virt
10:45:58 openstackgerrit Brin Zhang proposed openstack/nova master: Filter migrations by user_id/project_id https://review.opendev.org/674243
10:46:02 artom sean-k-mooney, I'll just add that to Matt's devstack nuke
10:46:10 sean-k-mooney so this host whihc is likel intel x86 was detected as support svm which from the kvm error it is not
10:46:22 sean-k-mooney cool
10:46:32 artom But coffee first
10:46:43 sean-k-mooney kvm64 is the most portable cpu model that work with kvm
10:47:02 artom Daughter started school. I'm guess I'm just excited/stressed for her.
10:47:20 sean-k-mooney first time
10:47:24 artom Gym attendance took a hit as well
10:47:26 artom Yeah
10:47:58 kashyap sean-k-mooney: IIRC, there was a reason we went with existing CPU model 'qemu64'
10:48:02 kashyap In DevStack
10:48:04 sean-k-mooney that can be stressful for both her and you. im sure it will be fine
10:48:09 kashyap Because not all Gate hosts support KVM
10:48:25 sean-k-mooney kashyap: yes but we are specific testing someing with nested vert
10:48:39 sean-k-mooney e.g we are hardcodeing stuff and targeting 1 cloud that does
10:48:58 sean-k-mooney so we are trying to undo all the other suff that hard codes it to qemu
10:49:42 kashyap sean-k-mooney: Ah, for that context, sure
10:49:57 alex_xu stephenfin: emm...all are expected, since he still using vcpu_pin_set, that means no PCPU
10:50:02 openstackgerrit Brin Zhang proposed openstack/nova master: Filter migrations by user_id/project_id https://review.opendev.org/674243
10:50:09 sean-k-mooney kashyap: ill be writing a sperate permenet job later but this is a quick hack just to do some non me testing of artoms code
10:50:34 kashyap sean-k-mooney: Sure. I didn't realize the full context.
10:50:59 openstackgerrit Brin Zhang proposed openstack/nova master: Filter migrations by user_id/project_id https://review.opendev.org/674243
10:51:29 sean-k-mooney kashyap: its kind of a libvirt/qemu bug.
10:52:04 sean-k-mooney with host model it should not be trying to use svm for the l2 guest on a l1 guest that does not have it
10:52:21 sean-k-mooney but if we use kvm64 it wont do that so its all good
10:52:57 sean-k-mooney i would not run real workload with kvm64 but its perfect for testing
10:53:26 kashyap sean-k-mooney: What precisely is a libvirt/QEMU bug? /me reads on
10:53:31 openstackgerrit Luyao Zhong proposed openstack/nova master: object: Introduce Resource and ResouceList objs https://review.opendev.org/678448
10:53:32 openstackgerrit Luyao Zhong proposed openstack/nova master: Add resources dict into _Provider https://review.opendev.org/678449
10:53:32 openstackgerrit Luyao Zhong proposed openstack/nova master: Retrive the allocations early https://review.opendev.org/678450

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