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Date:      Wed, 26 Mar 2025 12:16:20 +0000
From:      bugzilla-noreply@freebsd.org
To:        virtualization@FreeBSD.org
Subject:   [Bug 285415] [Hyper-V] i386 panic during vm_phys_early_startup()
Message-ID:  <bug-285415-27103-aAWSLEgtNT@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-285415-27103@https.bugs.freebsd.org/bugzilla/>
References:  <bug-285415-27103@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=285415

--- Comment #17 from Mark Johnston <markj@FreeBSD.org> ---
(In reply to Dimitry Andric from comment #14)
So, the assertions here are only in effect if there is more than one segment of
DMA memory.  In your case, the first segment is page-aligned but only 2048
bytes long, which is kind of weird.  I wonder if you could add some code to
print the full segs[] array before panicking?  Something like
https://people.freebsd.org/~markj/patches/storvsc_debug.diff

(Maybe this should be taken to a new PR, since it's somewhat unrelated?)

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