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Date:      Thu, 21 May 2020 17:51:38 +0000
From:      bugzilla-noreply@freebsd.org
To:        bugs@FreeBSD.org
Subject:   [Bug 246638] panic on boot: "cannot find a large enough size"
Message-ID:  <bug-246638-227-Ig7MyD7q7r@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-246638-227@https.bugs.freebsd.org/bugzilla/>
References:  <bug-246638-227@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D246638

--- Comment #3 from Mark Johnston <markj@FreeBSD.org> ---
(In reply to Conrad Meyer from comment #1)
Hmm.  In the one place where this function is used, we are allocating memor=
y to
back the vm page array.  The selected domain is that of the corresponding p=
age
frame, which means that the domain contains at least one physical page, so =
an
empty domain shouldn't be causing problems.  This code has also been in the
tree for a while, and I feel like we usually find out pretty quickly when a
regression causes 2990WX to fail to boot.

(In reply to Rafael Kitover from comment #2)
Could you grab the output of sysctl vm.phys_segs while you have 12.1 booted?

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