Hello,
this patch e90e51d5f01d ("KVM: VMX: clear vmx_x86_ops.sync_pir_to_irr if APICv
is disabled") has been applied to our master-next branch of Impish tree.
commit 1b611352fd6fd42a5a672f52f5f3035d48b3cd13
Author: Paolo Bonzini <[email protected]>
Date: Tue Nov 30 07:36:41 2021 -0500
KVM: VMX: clear vmx_x86_ops.sync_pir_to_irr if APICv is disabled
BugLink: https://bugs.launchpad.net/bugs/1958287
[ Upstream commit e90e51d5f01d2baae5dcce280866bbb96816e978 ]
There is nothing to synchronize if APICv is disabled, since neither
other vCPUs nor assigned devices can set PIR.ON.
Signed-off-by: Paolo Bonzini <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
Signed-off-by: Kamal Mostafa <[email protected]>
Signed-off-by: Stefan Bader <[email protected]>
It should be included in 5.13.0-40.45 of SRU cycle 2022 03/21 (tracking bug
lp:1966701)
I would suggest you to give this proposed kernel a try.
Also,
can you provide us the step to reproduce this?
I can't reproduce this on an clean Impish bare-metal system running with
5.13.0-39-generic with our KVM smoke test (which utilize uvt-kvm to create the
KVM instance).
It would be nice to improve the test coverage with it.
Thanks!
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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1966499
Title:
Recent 5.13 kernel has broken KVM support
Status in linux package in Ubuntu:
Confirmed
Status in linux source package in Impish:
New
Bug description:
Upgrading to 5.13.0-37 or 5.13.0-39 immediately crashes my production servers
as they hit:
https://lore.kernel.org/all/[email protected]/T/#md1f5c8c4aa01130a449a47f3e7559f06b0372f55
It looks like we need to get e90e51d5f01d included in those kernels.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1966499/+subscriptions
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