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Subject: Re: panic r326359
To: Masachika ISHIZUKA <ish@amail.plala.or.jp>, freebsd-current@freebsd.org
References: <20171129.213725.810459586021929184.ish@amail.plala.or.jp>
From: Hans Petter Selasky <hps@selasky.org>
Message-ID: <a80976a8-aa9b-bca4-dea2-c8b4888b3330@selasky.org>
Date: Wed, 29 Nov 2017 18:44:48 +0100
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On 11/29/17 13:37, Masachika ISHIZUKA wrote:
>    After updating r326359, kernel panic has occure. ( I can boot up
> but panics within a few minutes.)
>    It was good working up to r325887.
> 
> # cat /var/crash/info.6
> Dump header from device: /dev/gpt/fbswap
>    Architecture: amd64
>    Architecture Version: 2
>    Dump Length: 505135104
>    Blocksize: 512
>    Compression: none
>    Dumptime: Wed Nov 29 20:22:32 2017
>    Hostname: carrot.ish.org
>    Magic: FreeBSD Kernel Dump
>    Version String: FreeBSD 12.0-CURRENT #2 r326359: Wed Nov 29 19:06:12 JST 2017
>      ishizuka@carrot.ish.org:/usr/obj/usr/src/amd64.amd64/sys/GENERIC
>    Panic String: Lock if_lagg rmlock not read locked @ /usr/src/sys/net/if_lagg.c:1655
> 
>    Dump Parity: 971727379
>    Bounds: 6
>    Dump Status: good
> 
>    I put vmcore.6.bz2(157mb) in the following.
> https://www.ish.org/files/vmcore.6.bz2
> 

Try to set:

kern.smp.disabled=1

from loader or in /boot/loader.conf

Does it still panic?

--HPS