From owner-freebsd-arm@FreeBSD.ORG Thu May 14 00:27:02 2015 Return-Path: Delivered-To: freebsd-arm@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 3C80369B for ; Thu, 14 May 2015 00:27:02 +0000 (UTC) Received: from courriel.site.uottawa.ca (eecsmail.engineering.uottawa.ca [137.122.24.224]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "*.site.uottawa.ca", Issuer "PositiveSSL CA 2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 130F01D5F for ; Thu, 14 May 2015 00:27:01 +0000 (UTC) Received: from [10.0.2.15] (ppp-69-60-230-103.vianet.ca [69.60.230.103]) (authenticated bits=0) by courriel.site.uottawa.ca (8.14.5/8.14.5) with ESMTP id t4E039HH049332 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NOT) for ; Wed, 13 May 2015 20:03:10 -0400 (EDT) (envelope-from kwhite@site.uottawa.ca) Date: Wed, 13 May 2015 20:03:08 -0400 (EDT) From: Keith White X-X-Sender: kwhite@localhost.my.domain To: freebsd-arm@freebsd.org Subject: Translation Fault panic when trying to use an mfs_root on BBB Message-ID: User-Agent: Alpine 2.20 (BSF 67 2015-01-07) MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset=US-ASCII X-BeenThere: freebsd-arm@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: "Porting FreeBSD to ARM processors." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 14 May 2015 00:27:02 -0000 I get the following panic when trying to load an mfs_root on a reasonably current BBB image: Fatal kernel mode data abort: 'Translation Fault (L1)' on read trapframe: 0xdd43fd50 FSR=00000005, FAR=01211ef0, spsr=20000113 r0 =c35f4200, r1 =01211f00, r2 =000001e0, r3 =3dc1dd00 r4 =c3638930, r5 =c362d838, r6 =c362d810, r7 =c06037b8 r8 =0000002d, r9 =00000000, r10=c3638930, r11=dd43fdf0 r12=00000000, ssp=dd43fde0, slr=c0249918, pc =c05c6a68 [ thread pid 4 tid 100054 ] Stopped at memmove+0x29c: ldmdb r1!, {r3-r4, r12, r14} db> Hints, suggestions? ...keith --------------------------------- More (trimmed) details from boot: ... U-Boot 2014.10 (Mar 19 2015 - 18:29:51) ... FreeBSD/armv6hf U-Boot loader, Revision 1.2 (kwhite@freebsd11, Tue Mar 17 22:23:25 EDT 2015) ... Found U-Boot device: disk Checking unit=1 slice= partition=... good. /boot/kernel/kernel data=0x505c2c+0x923d4 syms=[0x4+0x606a0+0x4+0x65ed4] /boot/kernel/snd_uaudio.ko text=0xed3c data=0x620+0x10 syms=[0x4+0x1ec0+0x4+0x1a2f] ... Type '?' for a list of commands, 'help' for more detailed help. loader> load -t mfs_root /rootfs /rootfs size=0x858000 loader> boot -asv Booting... /boot/dtb/beaglebone-black.dtb size=0x24b4 Loaded DTB from file 'beaglebone-black.dtb'. Kernel entry at 0x80200100... Kernel args: -asv KDB: debugger backends: ddb KDB: current backend: ddb Copyright (c) 1992-2015 The FreeBSD Project. Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994 The Regents of the University of California. All rights reserved. FreeBSD is a registered trademark of The FreeBSD Foundation. FreeBSD 11.0-CURRENT #1 r282672M: Tue May 12 06:57:24 EDT 2015 kwhite@freebsd11:/usr/obj/arm.armv6hf/tank/RPI/head/sys/BEAGLEBONE-LOCAL arm FreeBSD clang version 3.6.0 (tags/RELEASE_360/final 230434) 20150225 WARNING: WITNESS option enabled, expect reduced performance. Preloaded elf kernel "/boot/kernel/kernel" at 0xc1219000. ... mmc0: Probing bus usbus0: 480Mbps High Speed USB v2.0 usbus1: 480Mbps High Speed USB v2.0 md0: Preloaded image 8749056 bytes at 0x9b9f00 ugen1.1: at usbus1 uhub0: on usbus1 ugen0.1: at usbus0 uhub1: on usbus0 Fatal kernel mode data abort: 'Translation Fault (L1)' on read trapframe: 0xdd43fd50 FSR=00000005, FAR=01211ef0, spsr=20000113 r0 =c35f4200, r1 =01211f00, r2 =000001e0, r3 =3dc1dd00 r4 =c3638930, r5 =c362d838, r6 =c362d810, r7 =c06037b8 r8 =0000002d, r9 =00000000, r10=c3638930, r11=dd43fdf0 r12=00000000, ssp=dd43fde0, slr=c0249918, pc =c05c6a68 [ thread pid 4 tid 100054 ] Stopped at memmove+0x29c: ldmdb r1!, {r3-r4, r12, r14} ... db> where Tracing pid 4 tid 100054 td 0xc362b990 db_trace_self() at db_trace_self pc = 0xc05b31b8 lr = 0xc0238364 (db_stack_trace+0x108) sp = 0xdd43fa58 fp = 0xdd43fa70 r10 = 0xc0788d34 db_stack_trace() at db_stack_trace+0x108 pc = 0xc0238364 lr = 0xc0237db0 (db_command+0x380) sp = 0xdd43fa78 fp = 0xdd43fb18 r4 = 0x00000000 r5 = 0x00000000 r6 = 0x00000072 r10 = 0xc0788d34 db_command() at db_command+0x380 pc = 0xc0237db0 lr = 0xc0237a20 (db_command_loop+0x74) sp = 0xdd43fb20 fp = 0xdd43fb30 r4 = 0xc0601fde r5 = 0xc061e763 r6 = 0xc0788d20 r7 = 0xc06cad34 r8 = 0xc07261d0 r9 = 0xc07261d4 r10 = 0x00000013 db_command_loop() at db_command_loop+0x74 pc = 0xc0237a20 lr = 0xc023a520 (db_trap+0x108) sp = 0xdd43fb38 fp = 0xdd43fc50 r4 = 0x00000000 r5 = 0xc0788d2c r6 = 0xc07261f8 r10 = 0x00000013 db_trap() at db_trap+0x108 pc = 0xc023a520 lr = 0xc03b80f8 (kdb_trap+0xd4) sp = 0xdd43fc58 fp = 0xdd43fc78 r4 = 0x00000000 r5 = 0x00000005 r6 = 0xc07261f8 r7 = 0xc06cad34 kdb_trap() at kdb_trap+0xd4 pc = 0xc03b80f8 lr = 0xc05c9748 (abort_fatal+0x1d4) sp = 0xdd43fc80 fp = 0xdd43fca0 r4 = 0xdd43fd50 r5 = 0x00000013 r6 = 0x01211ef0 r7 = 0x00000005 r8 = 0x00000005 r9 = 0x01211ef0 r10 = 0x00000013 abort_fatal() at abort_fatal+0x1d4 pc = 0xc05c9748 lr = 0xc05c9574 (abort_fatal) sp = 0xdd43fca8 fp = 0xdd43fd48 r4 = 0xdd43fd50 r5 = 0x00000000 r6 = 0x00000005 r7 = 0x00000005 r8 = 0xc362b990 r10 = 0x00000013 abort_fatal() at abort_fatal pc = 0xc05c9574 lr = 0xc05b4840 (exception_exit) sp = 0xdd43fd50 fp = 0xdd43fdf0 r4 = 0xc362d838 r5 = 0xc362d810 r6 = 0xc06037b8 r7 = 0x0000002d r8 = 0x00000000 r10 = 0xc3638930 exception_exit() at exception_exit pc = 0xc05b4840 lr = 0xc0249918 (mdstart_preload+0x58) sp = 0xdd43fde0 fp = 0xdd43fdf0 r0 = 0xc35f4200 r1 = 0x01211f00 r2 = 0x000001e0 r3 = 0x3dc1dd00 r4 = 0xc3638930 r5 = 0xc362d838 r6 = 0xc362d810 r7 = 0xc06037b8 r8 = 0x0000002d r9 = 0x00000000 r10 = 0xc3638930 r12 = 0x00000000 memmove() at memmove+0x29c pc = 0xc05c6a68 lr = 0xc0249918 (mdstart_preload+0x58) sp = 0xdd43fde0 fp = 0xdd43fdf0 mdstart_preload() at mdstart_preload+0x58 pc = 0xc0249918 lr = 0xc0249834 (md_kthread+0x194) sp = 0xdd43fdf8 fp = 0xdd43fe30 r4 = 0xc362d800 r10 = 0xc3638930 md_kthread() at md_kthread+0x194 pc = 0xc0249834 lr = 0xc034b0d0 (fork_exit+0x84) sp = 0xdd43fe38 fp = 0xdd43fe50 r4 = 0xc362b990 r5 = 0xc3379000 r6 = 0xc02496a0 r7 = 0xc362d800 r8 = 0xdd43fe58 r9 = 0xc0725d70 r10 = 0x00000104 fork_exit() at fork_exit+0x84 pc = 0xc034b0d0 lr = 0xc05b47d0 (swi_exit) sp = 0xdd43fe58 fp = 0x00000000 r4 = 0xc02496a0 r5 = 0xc362d800 r6 = 0xc072762c r7 = 0x00000000 r8 = 0xc0725d74 r10 = 0x00000104 swi_exit() at swi_exit pc = 0xc05b47d0 lr = 0xc05b47d0 (swi_exit) sp = 0xdd43fe58 fp = 0x00000000 db> reboot