From owner-freebsd-hackers@freebsd.org Sun Jun 19 21:47:40 2016 Return-Path: Delivered-To: freebsd-hackers@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 939E9A7A016 for ; Sun, 19 Jun 2016 21:47:40 +0000 (UTC) (envelope-from otacilio.neto@bsd.com.br) Received: from mail-qk0-x235.google.com (mail-qk0-x235.google.com [IPv6:2607:f8b0:400d:c09::235]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4E499274A for ; Sun, 19 Jun 2016 21:47:40 +0000 (UTC) (envelope-from otacilio.neto@bsd.com.br) Received: by mail-qk0-x235.google.com with SMTP id c73so140977130qkg.2 for ; Sun, 19 Jun 2016 14:47:40 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bsd.com.br; s=capeta; h=subject:to:references:from:message-id:date:user-agent:mime-version :in-reply-to:content-transfer-encoding; bh=qjmXniEmGtMqz9SS8xuhGquvc4OV6DZqFDyy1720PXU=; b=RnpUYLJIFH64lU4wGldNg8k+rViray17bRDJLJIxKidUrCKVk5Yg9V8bbOwR+os51n M0k8j5IBsa/2LTMHOND0uHbMVy0+SM/qRzvMoEzv165LUi/YjvyleHnSb8pkiOnlO5NE 0+G7G0zOtrEZDdKJTHibW69AMHCKGgWGionuI= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:subject:to:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-transfer-encoding; bh=qjmXniEmGtMqz9SS8xuhGquvc4OV6DZqFDyy1720PXU=; b=YEaekbsz8/zg2QUz4oBsgWBANaR8s83HjZ/zmgv7FL0ySLnwmkA3CtlTgCvUwcGWm/ XRnimkDzdQ2948mqg6ihp7kdZRuKjdQZ3NaD9fQXgxJtdhHsUOC5gPt7VR3KdSVcDJr1 llFlItE4GwwtTANlcekv5ZU1HoHdh7bk5NU+iZioyuimvOBM3ZpDTFQ6GInDvG2agWNG Gi1TJgad7vwCzMa1u6nWY74jmLnyiXt/iKrsDX9dgcD3n4rqr7YNjiYmy1FeL6sK7CiZ 3+00Vo02yYXLTBQsI4UnlBU+7Ea2cyeKYScugI2jvjyIGAHiG+NnIl7zDv/lyPohz8Uf mFCA== X-Gm-Message-State: ALyK8tKHeZ15tgicOv2CgIcdwbEqFCGXkZcCV+PigUksQZjk2WvBHeIYNiGXgJ+86TLOfQ== X-Received: by 10.55.209.83 with SMTP id s80mr17258725qki.87.1466372859352; Sun, 19 Jun 2016 14:47:39 -0700 (PDT) Received: from [192.168.0.18] ([187.60.94.34]) by smtp.googlemail.com with ESMTPSA id f13sm14609915qtc.2.2016.06.19.14.47.37 (version=TLSv1/SSLv3 cipher=OTHER); Sun, 19 Jun 2016 14:47:38 -0700 (PDT) Subject: Re: (beagleboneblack/urtwn) Kernel page fault with the following non-sleepable locks held To: "freebsd-arm@freebsd.org" , freebsd-hackers@freebsd.org References: From: =?UTF-8?B?T3RhY8OtbGlv?= Message-ID: <5e322d5a-8c42-8e69-f3c4-e607d40e8724@bsd.com.br> Date: Sun, 19 Jun 2016 18:47:19 -0300 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.1.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 19 Jun 2016 21:47:40 -0000 Em 19/06/2016 18:40, Otacílio escreveu: > I was installing netperf on a fresh FreeBSD-ALPHA3 > > FreeBSD beaglebone 11.0-ALPHA3 FreeBSD 11.0-ALPHA3 #0 r301846: Mon Jun > 13 19:54:27 BRT 2016 > ota@nostromo:/root/crochet/work/obj/arm.armv6/usr/src/sys/BEAGLEBONE-DEBUG > arm > > on BeagleboneBlack using wrtwn when I got this kernel panic: > > root@beaglebone:/usr/home/ota # pkg install netperf > Updating FreeBSD repository catalogue... > Fetching meta.txz: 100% 944 B 0.9kB/s 00:01 > Fetching packagesite.txz: 100% 4 MiB 46.0kB/s 01:42 > Processing entries: 6%lock order reversal: > 1st 0xc30b35d4 syncer (syncer) @ /usr/src/sys/kern/vfs_subr.c:2048 > 2nd 0xc319d6f4 ufs (ufs) @ /usr/src/sys/kern/vfs_subr.c:2498 > stack backtrace: > Processing entries: 58%Kernel page fault with the following > non-sleepable locks held: > exclusive sleep mutex tcp_sc_head (tcp_sc_head) r = 0 (0xc2f9d520) > locked @ /usr/src/sys/netinet/tcp_syncache.c:494 > shared rw tcp (tcp) r = 0 (0xc08ef348) locked @ > /usr/src/sys/netinet/tcp_input.c:1034 > exclusive rw tcpinp (tcpinp) r = 0 (0xc31ab494) locked @ > /usr/src/sys/netinet/in_pcb.c:1964 > stack backtrace: > Fatal kernel mode data abort: 'Alignment Fault' on read > trapframe: 0xdcfe58a8 > FSR=00000001, FAR=c2e7187a, spsr=60000013 > r0 =c08e7988, r1 =00000004, r2 =c06fa3ad, r3 =000007b6 > r4 =dcfe5a10, r5 =dcfe5b28, r6 =c2e71876, r7 =c2f9d520 > r8 =c2f9d520, r9 =c2e71876, r10=dcfe5b28, r11=dcfe5970 > r12=00000000, ssp=dcfe5938, slr=c2d34370, pc =c053d8e8 > > [ thread pid 13 tid 100036 ] > Stopped at syncookie_lookup+0x38: ldmib r6, {r1-r2} > db> > > > []'s > > -Otacílio > The kernel panic is totally reproducible. I need only do a ssh in the beaglebone using ptty on windows or ssh on freebsd and the kernel panic is raised. FreeBSD/arm (beaglebone) (ttyu0) login: Kernel page fault with the following non-sleepable locks held: exclusive sleep mutex tcp_sc_head (tcp_sc_head) r = 0 (0xc2f95480) locked @ /usr/src/sys/netinet/tcp_syncache.c:494 shared rw tcp (tcp) r = 0 (0xc08ef348) locked @ /usr/src/sys/netinet/tcp_input.c:1034 exclusive rw tcpinp (tcpinp) r = 0 (0xc341e494) locked @ /usr/src/sys/netinet/in_pcb.c:1964 stack backtrace: Fatal kernel mode data abort: 'Alignment Fault' on read trapframe: 0xdcfe58a8 FSR=00000001, FAR=c2e7807a, spsr=60000013 r0 =c08e7988, r1 =00000004, r2 =c06fa3ad, r3 =000007b6 r4 =dcfe5a10, r5 =dcfe5b28, r6 =c2e78076, r7 =c2f95480 r8 =c2f95480, r9 =c2e78076, r10=dcfe5b28, r11=dcfe5970 r12=00000000, ssp=dcfe5938, slr=c2d34370, pc =c053d8e8 [ thread pid 13 tid 100036 ] Stopped at syncookie_lookup+0x38: ldmib r6, {r1-r2} db>