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Date:      Wed, 25 Aug 2021 21:10:29 +0000
From:      bugzilla-noreply@freebsd.org
To:        bugs@FreeBSD.org
Subject:   [Bug 258049] vm_reserv_depopulate panic.
Message-ID:  <bug-258049-227-52e39n059H@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-258049-227@https.bugs.freebsd.org/bugzilla/>
References:  <bug-258049-227@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D258049

Jessica Clarke <jrtc27@freebsd.org> changed:

           What    |Removed                     |Added
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                 CC|                            |jrtc27@freebsd.org

--- Comment #1 from Jessica Clarke <jrtc27@freebsd.org> ---
Re observed on amd64, Google has 5 hits (I assume this bug report will shor=
tly
appear too) for `"vm_reserv_depopulate" "is clear"`, all but one of which a=
re
just for the code, with the final one being for this 5 year old GitHub Gist
https://gist.github.com/nomadlogic/ba58e8fd01267fbf7a2fa4fcee29e2f7 that was
for FreeBSD 12.0-CURRENT on amd64 when using the old freebsd-base-graphics
tree.

Looking at vm_reserv itself, whilst a caller can do stupid things and
potentially cause crashes, my initial reading is that this KASSERT should be
impossible no matter what the caller is doing.

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