From owner-freebsd-wireless@freebsd.org Wed Sep 16 16:18:22 2015 Return-Path: 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 9D35B9C2208 for ; Wed, 16 Sep 2015 16:18:22 +0000 (UTC) (envelope-from mgrooms@shrew.net) Received: from mx2.shrew.net (mx2.shrew.net [38.97.5.132]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 4D152159A for ; Wed, 16 Sep 2015 16:18:21 +0000 (UTC) (envelope-from mgrooms@shrew.net) Received: from mail.shrew.net (mail.shrew.prv [10.24.10.20]) by mx2.shrew.net (8.14.7/8.14.7) with ESMTP id t8GGGJxn040509 for ; Wed, 16 Sep 2015 11:16:19 -0500 (CDT) (envelope-from mgrooms@shrew.net) Received: from [10.16.32.30] (72-48-144-84.static.grandenetworks.net [72.48.144.84]) by mail.shrew.net (Postfix) with ESMTPSA id 562FB18BDDB for ; Wed, 16 Sep 2015 11:16:09 -0500 (CDT) Subject: Re: urtwn and hostap To: freebsd-wireless@freebsd.org References: <55F90187.10809@shrew.net> <55F906CB.9030007@shrew.net> From: Matthew Grooms Message-ID: <55F99646.6040200@shrew.net> Date: Wed, 16 Sep 2015 11:18:14 -0500 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:38.0) Gecko/20100101 Thunderbird/38.2.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.4.3 (mx2.shrew.net [10.24.10.11]); Wed, 16 Sep 2015 11:16:19 -0500 (CDT) X-BeenThere: freebsd-wireless@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: "Discussions of 802.11 stack, tools device driver development." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 16 Sep 2015 16:18:22 -0000 On 9/16/2015 6:27 AM, Idwer Vollering wrote: > 2015-09-16 8:06 GMT+02:00 Matthew Grooms : > >> It looks like my screenshot got scrubbed. Here is my hopefully faithful >> transcription ... >> >> Fatal trap 9: general protection fault while in kernel mode >> cpuid = 3; apic id = 03 >> instruction pointer = 0x20:0xffffffff80a01105 >> stack pointer = 0x28:0xfffffe0092fe86f0 >> frame pointer = 0x28:0xfffffe0092fe8740 >> code segment = base 0x0, limit 0xfffff, type 0x1b >> = DPL 0, pres 1, long 1, def32 0, gran 1 >> processor eflags = interrupt enabled, resume, IOPL = 0 >> current process = 716 (ifconfig) >> [thread pid 716 tid 100082 ] >> Stopped at __mtx_lock_flags+0x55: movq (%r13),%rax >> db> bt >> Tracing pid 716 tid 100082 td 0xffffff800512814d0 >> __mtx_lock_flags() at __mtx_lock_flags+0x55/frame 0xfffffe0092fe8740 >> ieee80211_free_node() at ieee80211_free_node()_0x38/frame 0xfffffe0092fe8780 >> ieee80211_node_vdetach() at ieee80211_node_vdetach()+0x2d/frame >> 0xfffffe0092fe87a0 >> ieee80211_vap_detach() at ieee80211_vap_detach()+0x35e/frame >> 0xfffffe0092fe87d0 >> urtwn_vap_delete() at urtwn_vap_delete()+0xe/frame 0xfffffe0092fe87f0 >> if_clone_destroyif() at if_clone_destroyif()+0x1aa/frame 0xfffffe0092fe8840 >> if_clone_destroy() at if_clone_destroy()0x8e/frame 0xfffffe0092fe8860 >> kern_ioctl() at kern_ioctl()+0x230/frame 0xfffffe0092fe88c0 >> sys_ioctl() at sys_ioctl()+0x153/frame 0xfffffe0092fe89a0 >> amd64_syscall() at amd64_syscall()+0x282/frame 0xfffffe0092fe8ab0 >> Xfast_syscall() at Xfast_syscall()+0xfb/frame 0xfffffe0092fe8ab0 >> -- syscall (54, FreeBSD ELF64, sys_ioctl), rip = 0x8011e8c8a, rsp = >> 0x7fffffffe2f8, rbp = 0x7fffffffe310 -- >> db> > Assuming dumpdev="AUTO" is set in /etc/rc.conf, you should have > entered 'dump' at the db> blinker :) > > The trap details are found in /var/crash/, run kgdb: "kgdb > /boot/kernel/kernel /var/crash/vmcore.last", then run 'bt' and 'up' at > its prompt. That sounds super useful. I felt like I was fumbling around in the dark at the db prompt :) Thanks again, -Matthew