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Date:      Thu, 18 Jan 2024 20:25:05 +0000
From:      bugzilla-noreply@freebsd.org
To:        bugs@FreeBSD.org
Subject:   [Bug 276426] amd64: microcode update caused a page fault trying to send data to the logger
Message-ID:  <bug-276426-227-xUQ6F0TvnF@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-276426-227@https.bugs.freebsd.org/bugzilla/>
References:  <bug-276426-227@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D276426

--- Comment #5 from Konstantin Belousov <kib@FreeBSD.org> ---
In the first message, the backtrace shows copyout_nosmap_std().

Anyway, do you observe a difference in the reported features before and
after ucode load?

Also, for the trap, disassemble the copyout function and show which
instruction faulted.

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