[Bug 270966] AMD IOMMU/bhyve/PCI passthru fails with "ivhd, ILLEGAL CMD, IO_PAGE_FAULT"

In reply to: bugzilla-noreply_a_freebsd.org: "[Bug 270966] PCI passthru stops working after ~30 guest reboots (ivhd, ILLEGAL CMD, IO_PAGE_FAULT)"
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From: <bugzilla-noreply_at_freebsd.org>
Date: Thu, 05 Jun 2025 22:31:18 UTC

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=270966

--- Comment #23 from Bakul Shah <bakul@iitbombay.org> ---
I have been seeing the same thing on stable/14 branch on a amd64 (Ryzen)
machine for a number of weeks (if not months). I have to restart the host to
have passthrough devices work again.

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