Enabling VT-d causes hard lockup
Hi, I've been trying to get an old machine setup for PCIe passthrough but am seeing kernel hangs when booting into oVirt. This is a Supermicro X10DAi with dual E5-2695 V4's I think. I had VT-d enabled and added SR-IOV. Don't think there's anything else I need to enable in the BIOS is there? I just updated to the latest version for this board too. It always seems to be CPU#18 too : https://photos.app.goo.gl/HG7NcyWwfuq646HeA Shareef.
On April 17, 2020 6:04:02 PM GMT+03:00, Shareef Jalloq <shareef@jalloq.co.uk> wrote:
Hi,
I've been trying to get an old machine setup for PCIe passthrough but am seeing kernel hangs when booting into oVirt. This is a Supermicro X10DAi with dual E5-2695 V4's I think.
I had VT-d enabled and added SR-IOV. Don't think there's anything else I need to enable in the BIOS is there? I just updated to the latest version for this board too.
It always seems to be CPU#18 too : https://photos.app.goo.gl/HG7NcyWwfuq646HeA
Shareef.
There should be an IOMMU option too. The following is for AMD, but maybe it's valid for intel: https://www.supermicro.com/support/faqs/faq.cfm?faq=21348 Best Regards, Strahil Nikolov
i had similar things with faulty 10G network card, so u have any devices in pci slots? brw the card should have as well sr-iov on. Strahil Nikolov <hunter86_bg@yahoo.com> schrieb am Fr., 17. Apr. 2020, 18:54:
On April 17, 2020 6:04:02 PM GMT+03:00, Shareef Jalloq < shareef@jalloq.co.uk> wrote:
Hi,
I've been trying to get an old machine setup for PCIe passthrough but am seeing kernel hangs when booting into oVirt. This is a Supermicro X10DAi with dual E5-2695 V4's I think.
I had VT-d enabled and added SR-IOV. Don't think there's anything else I need to enable in the BIOS is there? I just updated to the latest version for this board too.
It always seems to be CPU#18 too : https://photos.app.goo.gl/HG7NcyWwfuq646HeA
Shareef.
There should be an IOMMU option too.
The following is for AMD, but maybe it's valid for intel:
https://www.supermicro.com/support/faqs/faq.cfm?faq=21348
Best Regards, Strahil Nikolov _______________________________________________ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-leave@ovirt.org Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/DNENAMYE77D3GR...
Looks like I have a defective CPU after all this. The machine always had the odd stability issue that we never tracked down but enabling these options seems to have made it hang every time. I ran with one CPU in a socket at a time and I have one good CPU and one bad. It hangs every time while the other boots with no issues and I can see passthrough enabled in the node details. On a related note, how do I remove an old host from the Engine Compute->Hosts view? There doesn't seem to be an option to delete/forget it? It seems to have a Status of Unassigned with only Restart/Stop options in the Managment drop down menu. I want to reassign the node name to the reinstalled host. Shareef. On Sat, Apr 18, 2020 at 4:03 PM Arman Khalatyan <arm2arm@gmail.com> wrote:
i had similar things with faulty 10G network card, so u have any devices in pci slots? brw the card should have as well sr-iov on.
Strahil Nikolov <hunter86_bg@yahoo.com> schrieb am Fr., 17. Apr. 2020, 18:54:
On April 17, 2020 6:04:02 PM GMT+03:00, Shareef Jalloq < shareef@jalloq.co.uk> wrote:
Hi,
I've been trying to get an old machine setup for PCIe passthrough but am seeing kernel hangs when booting into oVirt. This is a Supermicro X10DAi with dual E5-2695 V4's I think.
I had VT-d enabled and added SR-IOV. Don't think there's anything else I need to enable in the BIOS is there? I just updated to the latest version for this board too.
It always seems to be CPU#18 too : https://photos.app.goo.gl/HG7NcyWwfuq646HeA
Shareef.
There should be an IOMMU option too.
The following is for AMD, but maybe it's valid for intel:
https://www.supermicro.com/support/faqs/faq.cfm?faq=21348
Best Regards, Strahil Nikolov _______________________________________________ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-leave@ovirt.org Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/DNENAMYE77D3GR...
participants (3)
-
Arman Khalatyan -
Shareef Jalloq -
Strahil Nikolov