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Date:      Mon, 30 Jul 2018 12:43:24 +0100
From:      Pete French <petefrench@ingresso.co.uk>
To:        Mike Tancsa <mike@sentex.net>, Konstantin Belousov <kostikbel@gmail.com>
Cc:        truckman@FreeBSD.org, eric@vangyzen.net, freebsd-stable@freebsd.org, freebsd@hda3.com, avg@freebsd.org
Subject:   Re: Ryzen issues on FreeBSD ? (with sort of workaround)
Message-ID:  <a0abb70f-4a33-16b7-e140-30e2d049dc96@ingresso.co.uk>
In-Reply-To: <ae1ee1fd-cff4-1bb6-d671-62094970ea44@sentex.net>
References:  <20180705133542.GG5562@kib.kiev.ua> <E1fb4mD-0006j7-SY@dilbert.ingresso.co.uk> <20180705145130.GH5562@kib.kiev.ua> <548b493e-6a51-32ca-b3c1-216cac037e8b@ingresso.co.uk> <a05cc627-6359-6c9f-0f48-3e7b69f7d9e9@sentex.net> <9209d008-03dd-8613-3e6d-303eea8b80ef@ingresso.co.uk> <643509b6-511d-ba2b-3e0d-b38cd6607a25@sentex.net> <20180727143801.GF2394@kib.kiev.ua> <ae1ee1fd-cff4-1bb6-d671-62094970ea44@sentex.net>

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> I just brought everything upto date and re-tested and same issue.
> FreeBSD 11.2-STABLE #1 r336761
> 
> # mount | grep -v zfs
> devfs on /dev (devfs, local, multilabel)
> linprocfs on /compat/linux/proc (linprocfs, local)
> linsysfs on /compat/linux/sys (linsysfs, local)
> tmpfs on /compat/linux/dev/shm (tmpfs, local)
> 
> # /compat/linux/bin/bash
> Segmentation fault (core dumped)
> #
> 

I opened a bug report for this here:

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=230144

It definitely processor dependent (booting same drive on two different 
CPUs shows it up) and it does not happen on CURRENT. Very odd indeed!

-pete.





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