From owner-freebsd-wireless@freebsd.org  Wed Jul 20 23:06:36 2016
Return-Path: <owner-freebsd-wireless@freebsd.org>
Delivered-To: freebsd-wireless@mailman.ysv.freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 by mailman.ysv.freebsd.org (Postfix) with ESMTP id 088F4BA0D5A
 for <freebsd-wireless@mailman.ysv.freebsd.org>;
 Wed, 20 Jul 2016 23:06:36 +0000 (UTC) (envelope-from yuri@rawbw.com)
Received: from shell1.rawbw.com (shell1.rawbw.com [198.144.192.42])
 by mx1.freebsd.org (Postfix) with ESMTP id EC765172C
 for <freebsd-wireless@freebsd.org>; Wed, 20 Jul 2016 23:06:35 +0000 (UTC)
 (envelope-from yuri@rawbw.com)
Received: from yuri.doctorlan.com (c-24-5-143-190.hsd1.ca.comcast.net
 [24.5.143.190]) (authenticated bits=0)
 by shell1.rawbw.com (8.15.1/8.15.1) with ESMTPSA id u6KN6YxH093776
 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO);
 Wed, 20 Jul 2016 16:06:35 -0700 (PDT) (envelope-from yuri@rawbw.com)
X-Authentication-Warning: shell1.rawbw.com: Host
 c-24-5-143-190.hsd1.ca.comcast.net [24.5.143.190] claimed to be
 yuri.doctorlan.com
Subject: Re: kernel crashes in ndis_start
To: Adrian Chadd <adrian.chadd@gmail.com>
References: <e6992074-6bcf-bff3-ecbf-d5cb074cac5d@rawbw.com>
 <CAJ-Vmom7hOR_8amxWkGp9TrGaOuYxJ+47dNe0BJsCDa4psUOcA@mail.gmail.com>
Cc: freebsd-wireless <freebsd-wireless@freebsd.org>
From: Yuri <yuri@rawbw.com>
Message-ID: <7ea7aa1a-e0ea-ee47-f885-c013c37eb251@rawbw.com>
Date: Wed, 20 Jul 2016 16:06:33 -0700
User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:45.0) Gecko/20100101
 Thunderbird/45.1.0
MIME-Version: 1.0
In-Reply-To: <CAJ-Vmom7hOR_8amxWkGp9TrGaOuYxJ+47dNe0BJsCDa4psUOcA@mail.gmail.com>
Content-Type: text/plain; charset=utf-8; format=flowed
Content-Transfer-Encoding: 7bit
X-BeenThere: freebsd-wireless@freebsd.org
X-Mailman-Version: 2.1.22
Precedence: list
List-Id: "Discussions of 802.11 stack,
 tools device driver development." <freebsd-wireless.freebsd.org>
List-Unsubscribe: <https://lists.freebsd.org/mailman/options/freebsd-wireless>, 
 <mailto:freebsd-wireless-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-wireless/>
List-Post: <mailto:freebsd-wireless@freebsd.org>
List-Help: <mailto:freebsd-wireless-request@freebsd.org?subject=help>
List-Subscribe: <https://lists.freebsd.org/mailman/listinfo/freebsd-wireless>, 
 <mailto:freebsd-wireless-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 20 Jul 2016 23:06:36 -0000

On 07/20/2016 15:34, Adrian Chadd wrote:
> it's doing that for transmitting packets. can you load the crashdump
> into kgdb and get a debug backtrace?
> and/or /var/crash/core.txt.X ?


kgdb shows that the crash occurs in ndis_bcmwl564_sys_drv_data_start().

#5  0xffffffff80d5c1dd in trap_pfault (frame=0xfffffe003fc08910, 
usermode=<value optimized out>) at /usr/src/sys/amd64/amd64/trap.c:681
#6  0xffffffff80d5b85a in trap (frame=0xfffffe003fc08910) at 
/usr/src/sys/amd64/amd64/trap.c:447
#7  0xffffffff80d4192c in calltrap () at 
/usr/src/sys/amd64/amd64/exception.S:238
#8  0xffffffff81c3571a in ndis_bcmwl564_sys_drv_data_start () from 
/boot/modules/bcmwl564_sys.ko
#9  0x00000000000005a8 in ?? ()
#10 0xfffff80017617194 in ?? ()

Otherwise there is no useful info in vmcore.0. I will rerun with the 
debug kernel and will get more information.


Yuri