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Date:      Tue, 17 Apr 2018 14:57:54 +0000
From:      jacinta.martin@collabratesuite.com
To:        freebsd-stable@freebsd.org
Subject:   Debian Competitors Users Contact Info.
Message-ID:  <001a114d6ea82834d5056a0c90d2@google.com>

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From: Dan Allen <danallen46@gmail.com>
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Subject: Re: amd64 kernel crash introduced between 20180329 & 20180408
Date: Tue, 17 Apr 2018 09:18:48 -0600
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Cc: FreeBSD-STABLE Mailing List <freebsd-stable@freebsd.org>
To: Kyle Evans <kevans@freebsd.org>
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> On 17 Apr 2018, at 8:49 AM, Kyle Evans <kevans@freebsd.org> wrote:
>=20
> As "the guy most likely to have broken boot code in stable," may I ask
> what leads you specifically to amd64 boot code? Mostly curious if
> there's something beyond "i386 works well" that lead you to this
> conclusion.

It is partly just a hunch.

I installed 11.0 for use with qemu a while ago.  I did binary upgrades =
for patches using
freebsd-update.  When 11.1 came out, it would not work correctly, again =
with the same
kind of behavior.  Then, I got some later snapshots that worked again, =
notably the 20180329
build.  When the next snapshot came out, things broke.  I also tried my =
own builds, same story.

I even got both source trees together - 20180329 and 20180408 - and did =
a diff on the entire
trees, and I noticed activity in the boot & kernel code.  It could just =
as likely be something in the
kernel as well, but none of this happens with the i386 build.

> When you say it crashes and does a kernel dump- you're landing at a
> ddb prompt, yeah? What does executing bt at that prompt look like?

No, I am not ever given a prompt.  I get to watch a mini-dump happen and =
then an automatic
reboot.  It is a kernel panic.  Here is what I see:




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