[Bug 271983] mi_switch hang in KVM on Sapphire Rapids running NET_EPOCH_DRAIN_CALLBACKS

In reply to: bugzilla-noreply_a_freebsd.org: "[Bug 271983] mi_switch hang in KVM on Sapphire Rapids running NET_EPOCH_DRAIN_CALLBACKS"
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From: <bugzilla-noreply_at_freebsd.org>
Date: Tue, 13 Jun 2023 19:27:46 UTC

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=271983

--- Comment #3 from Mark Johnston <markj@FreeBSD.org> ---
(In reply to R. Christian McDonald from comment #2)
That is pretty weird.  Could you share the output of "procstat -kka" while the
hang is occurring?

Do you have INVARIANTS enabled?

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