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Date:      Sun, 25 Jul 2021 20:24:02 +0000
From:      bugzilla-noreply@freebsd.org
To:        virtualization@FreeBSD.org
Subject:   [Bug 254513] virtio_random: random_harvestq spinning on a CPU with Q35 virtio random device
Message-ID:  <bug-254513-27103-uXUW8lMdrD@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-254513-27103@https.bugs.freebsd.org/bugzilla/>
References:  <bug-254513-27103@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D254513

--- Comment #12 from Matthias Andree <mandree@FreeBSD.org> ---
(In reply to Billy from comment #11)
If you can boot into single user mode, the mount your root FS r/w, you can =
add
this devmatch_blacklist to the configuration, the devmatch autoloads happen=
 on
full boot from /etc/rc.d.

Not sure how this works with the install CD though, if the install itself
already slows down to a hog before you can get your hands on the module
loading, can you get a root shell to kldunload virtio_random?

I was upgrading from 12.2 to 13.0 so I don't know how the install CD behave=
s.

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