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Date:      Thu, 19 Mar 2026 12:23:01 +0000
From:      bugzilla-noreply@freebsd.org
To:        virtualization@FreeBSD.org
Subject:   [Bug 293911] Windows Guest crashes Host -> Hard reset
Message-ID:  <bug-293911-27103-jmu37Lvh4R@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-293911-27103@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=293911

--- Comment #3 from Gian-Simon Purkert <gspurki@gmail.com> ---
Most of the crashes ~70% happens when Windows restarts and one has the
bhyve-uefi-picture and the spinning dot on screen, but sometimes in the middle
of a update when logged in to Windows.

Additionally the crash happens more often with enabled passthru, but also
without.

The two devices in vm-bhyve_Windows.conf are a GPU (AMD RX580) and a USB-Hub.

Changed to another tty to see some messages, restarted the Windows Guest, zero
messages but reliable freeze and hard reset.

This is not happening with Linux/BSD/OpenVMS/9Front/omniOS really just with
Windows10/11 and the corresponding server variants.

To me it "smells" a bit, but not really like that Forum entry:

https://forums.freebsd.org/threads/bhyve-vm-stuck-when-passthru-enabled.92854/

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