From owner-freebsd-current@FreeBSD.ORG Sat Sep 4 16:22:10 2004 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id A4E5216A4CE; Sat, 4 Sep 2004 16:22:10 +0000 (GMT) Received: from zaphod.nitro.dk (port324.ds1-khk.adsl.cybercity.dk [212.242.113.79]) by mx1.FreeBSD.org (Postfix) with ESMTP id 4F73643D39; Sat, 4 Sep 2004 16:22:09 +0000 (GMT) (envelope-from simon@zaphod.nitro.dk) Received: by zaphod.nitro.dk (Postfix, from userid 3000) id 16F9E11AB1; Sat, 4 Sep 2004 18:22:06 +0200 (CEST) Date: Sat, 4 Sep 2004 18:22:06 +0200 From: "Simon L. Nielsen" To: freebsd-current@freebsd.org Message-ID: <20040904162206.GD759@zaphod.nitro.dk> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="PHCdUe6m4AxPMzOu" Content-Disposition: inline User-Agent: Mutt/1.5.6i cc: Pawel Jakub Dawidek Subject: Panic using geom_mirror after "WARNING: Device name truncated!..." X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 04 Sep 2004 16:22:10 -0000 --PHCdUe6m4AxPMzOu Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hello [To Pawel: this mail contain more information than my original private mail to you] I stumbled into an slightly odd error/panic using geom_mirror(4). While I think the main problem here is somewhere in geom_mirror (and probably related to the current content on the disks I mirror) it looks like the one problem triggers other problems. I have two 10GB disks (ad0 and ad1) that I want to do a mirror on called "boot". ad0 contains a full old FreeBSD install (4.9 AFAIR). ad1 just contains a slice table with one slice, and is otherwise clean (bsdlabel for both are included). The system is running RELENG_5 and the problem happens on a August 21 and on a September 3 kernel. On the September 3 kernel I upgraded to geom_mirror from -CURRENT (from today). When I label them and load geom_mirror the systems panics very shortly after with a double fault if I don't stop the mirror first.. The console shows (from sep 4 kernel with debug set to 1): GEOM_MIRROR[1]: Creating device boot (id=3D2639492630). GEOM_MIRROR[0]: Device boot created (id=3D2639492630). GEOM_MIRROR[1]: Adding disk ad1s1 to boot. GEOM_MIRROR[1]: Invalid size of disk ad1s1 (device boot), skipping. GEOM_MIRROR[0]: Cannot add disk ad1s1 to boot (error=3D22). GEOM_MIRROR[0]: Device boot destroyed. GEOM_MIRROR[1]: Creating device boot (id=3D2639492630). GEOM_MIRROR[0]: Device boot created (id=3D2639492630). GEOM_MIRROR[1]: Adding disk ad1s1c to boot. GEOM_MIRROR[1]: Invalid size of disk ad1s1c (device boot), skipping. GEOM_MIRROR[0]: Cannot add disk ad1s1c to boot (error=3D22). GEOM_MIRROR[0]: Device boot destroyed. GEOM_MIRROR[1]: Creating device boot (id=3D2639492630). GEOM_MIRROR[0]: Device boot created (id=3D2639492630). GEOM_MIRROR[1]: Adding disk ad1 to boot. GEOM_MIRROR[1]: Disk ad1 state changed from NONE to NEW (device boot). GEOM_MIRROR[0]: Device boot: provider ad1 detected. GEOM_MIRROR[1]: Adding disk ad0 to boot. GEOM_MIRROR[1]: Disk ad0 state changed from NONE to NEW (device boot). GEOM_MIRROR[0]: Device boot: provider ad0 detected. GEOM_MIRROR[1]: Device boot state changed from STARTING to RUNNING. GEOM_MIRROR[1]: Disk ad1 state changed from NEW to ACTIVE (device boot). GEOM_MIRROR[0]: Device boot: provider ad1 activated. GEOM_MIRROR[1]: Disk ad0 state changed from NEW to ACTIVE (device boot). GEOM_MIRROR[0]: Device boot: provider ad0 activated. GEOM_MIRROR[0]: Device boot: provider mirror/boot launched. GEOM_MIRROR[1]: Adding disk ad1s1 to boot. GEOM_MIRROR[1]: Disk ad1s1 (id=3D2151593843) already exists, skipping. GEOM_MIRROR[0]: Cannot add disk ad1s1 to boot (error=3D17). GEOM_MIRROR[1]: Adding disk ad1s1c to boot. GEOM_MIRROR[1]: Disk ad1s1c (id=3D2151593843) already exists, skipping. GEOM_MIRROR[0]: Cannot add disk ad1s1c to boot (error=3D17). WARNING: Device name truncated! (mirror/boots1ccccccccccccccccccccccccccccc= ccccccccccccccccccccc)KDB: stack backtrace: kdb_backtrace(c07ed998,c1d148a4) at kdb_backtrace+0x29 make_dev(c0847e20,bc,0,5,1a0) at make_dev+0xb7 g_dev_taste(c0847e80,c1d15300,0,c1d0f980,64) at g_dev_taste+0xe2 g_new_provider_event(c1d15300,0,66666667,cbd43d04,c05cff09) at g_new_provid= er_event+0x6e one_event(cbd43d1c,c05d12e5,3c,28,c15368c0) at one_event+0x14f g_run_events(3c,28,c15368c0,c05d12a8,cbd43d34) at g_run_events+0x9 g_event_procbody(0,cbd43d48,0,c05d12a8,0) at g_event_procbody+0x3d fork_exit(c05d12a8,0,cbd43d48) at fork_exit+0xa4 fork_trampoline() at fork_trampoline+0x8 --- trap 0x1, eip =3D 0, esp =3D 0xcbd43d7c, ebp =3D 0 --- I added a call to kdb_backtrace after the warning in make_dev to get an idea whats going on... And it writes _a lot_ of the "WARNIG: Device name..." messages before it crashes like below. The console from August where it actually panics: GEOM_MIRROR: Device boot created (id=3D2639492630). GEOM_MIRROR: Device boot: provider ad0 detected. GEOM_MIRROR: Device boot: provider ad1 detected. GEOM_MIRROR: Device boot: provider ad1 activated. GEOM_MIRROR: Device boot: provider ad0 activated. GEOM_MIRROR: Device boot: provider mirror/boot launched. GEOM_MIRROR: Cannot add disk ad1s1 to boot (error=3D17). GEOM_MIRROR: Cannot add disk ad1s1c to boot (error=3D17). WARNING: Device name truncated! (mirror/boots1", 'c' , ")= WARNING: Device name truncated! (mirror/boots1", 'c' , ")= WARNING: Device name truncated! (mirror/boots1", 'c' , ")= WARNING: Device name truncated! (mirror/boots1", 'c' , ")= WARNING: Device name truncated! (mirror/boots1", 'c' , ")= WARNING: Device name truncated! (mirror/boots1", 'c' , ")= WARNING: Device name truncated! (mirror/boots1", 'c' , ")= WARNING: Device name truncated! (mirror/boots1", 'c' , ")= WARNING: Device name truncated! (mirror/boots1", 'c' , ")= WARNING: Device name truncated! (mirror/boots1", 'c' , ")= WARNING: Device name truncated! (mirror/boots1", 'c' , ")= WARNING: Device name truncated! (mirror/boots1", 'c' , ")= WARNING: Device name truncated! (mirror/boots1", 'c' , ")= WARNING: Device name truncated! (mirror/boots1", 'c' , ")= WARNING: Device name truncated! (mirror/boots1", 'c' , ")= WARNING: Device name truncated! (mirror/boots1", 'c' , ")= WARNING: Device name truncated! (mirror/boots1", 'c' , ")= WARNING: Device name truncated! (mirror/boots1", 'c' , ")= WARNING: Device name truncated! (mirror/boots1", 'c' , ")= WARNING: Device name truncated! (mirror/boots1", 'c' , ")= WARNING: Device name truncated! (mirror/boots1", 'c' , ")= WARNING: Device name truncated! (mirror/boots1", 'c' , ")= WARNING: Device name truncated! (mirror/boots1", 'c' , ")= WARNING: Device name truncated! (mirror/boots1", 'c' , ")= WARNING: Device name truncated! (mirror/boots1", 'c' , ")= WARNING: Device name truncated! (mirror/boots1", 'c' , ")= WARNING: Device name truncated! (mirror/boots1", 'c' , ")= WARNING: Device name truncated! (mirror/boots1", 'c' , ")= WARNING: Device name truncated! (mirror/boots1", 'c' , ")= WARNING: Device name truncated! (mirror/boots1", 'c' , ")= WARNING: Device name truncated! (mirror/boots1", 'c' , ")= WARNING: Device name truncated! (mirror/boots1", 'c' , ")= WARNING: Device name truncated! (mirror/boots1", 'c' , ")= WARNING: Device name truncated! (mirror/boots1", 'c' , ")= WARNING: Device name truncated! (mirror/boots1", 'c' , ")= WARNING: Device name truncated! (mirror/boots1", 'c' , ")= WARNING: Device name truncated! (mirror/boots1", 'c' , ")= WARNING: Device name truncated! (mirror/boots1", 'c' , ")= WARNING: Device name truncated! (mirror/boots1", 'c' , ")= WARNING: Device name truncated! (mirror/boots1", 'c' , ")= WARNING: Device name truncated! (mirror/boots1", 'c' , ")= WARNING: Device name truncated! (mirror/boots1", 'c' , ")= WARNING: Device name truncated! (mirror/boots1", 'c' , ")= WARNING: Device name truncated! (mirror/boots1", 'c' , ")= WARNING: Device name truncated! (mirror/boots1", 'c' , ")= WARNING: Device name truncated! (mirror/boots1", 'c' , ")= WARNING: Device name truncated! (mirror/boots1", 'c' , ")= WARNING: Device name truncated! (mirror/boots1", 'c' , ")= WARNING: Device name truncated! (mirror/boots1", 'c' , ")= WARNING: Device name truncated! (mirror/boots1", 'c' , ")= WARNING: Device name truncated! (mirror/boots1", 'c' , ")= WARNING: Device name truncated! (mirror/boots1", 'c' , ")= WARNING: Device name truncated! (mirror/boots1", 'c' , ")= WARNING: Device name truncated! (mirror/boots1", 'c' , ")= WARNING: Device name truncated! (mirror/boots1", 'c' , ")= WARNING: Device name truncated! (mirror/boots1", 'c' , ")= WARNING: Device name truncated! (mirror/boots1", 'c' , ")= WARNING: Device name truncated! (mirror/boots1", 'c' , ")= WARNING: Device name truncated! (mirror/boots1", 'c' , ")= WARNING: Device name truncated! (mirror/boots1", 'c' , ")= WARNING: Device name truncated! (mirror/boots1", 'c' , ")= WARNING: Device name truncated! (mirror/boots1", 'c' , ")= WARNING: Device name truncated! (mirror/boots1", 'c' , ")= WARNING: Device name truncated! (mirror/boots1", 'c' , ")= WARNING: Device name truncated! (mirror/boots1", 'c' , ")= WARNING: Device name truncated! (mirror/boots1", 'c' , ") Fatal double fault: eip =3D 0xc0795732 esp =3D 0xcbd42000 ebp =3D 0xcbd42010 cpuid =3D 0; apic id =3D 00 panic: double fault cpuid =3D 0;=20 KDB: enter: panic The backtrace of the panic : #0 doadump () at pcpu.h:159 #1 0xc0460102 in db_fncall (dummy1=3D0, dummy2=3D0, dummy3=3D-1065942185,= =20 dummy4=3D0xc09087e4 "XXX" at /FreeBSD/5-STABLE/sys/ddb/db_command.c:531 #2 0xc045ff10 in db_command (last_cmdp=3D0xc0896f44, cmd_table=3D0x0, aux_= cmd_tablep=3D0xc0817988,=20 aux_cmd_tablep_end=3D0xc08179a4) at /FreeBSD/5-STABLE/sys/ddb/db_comman= d.c:349 #3 0xc045ffd8 in db_command_loop () at /FreeBSD/5-STABLE/sys/ddb/db_comman= d.c:455 #4 0xc0461b3d in db_trap (type=3D3, code=3D0) at /FreeBSD/5-STABLE/sys/ddb= /db_main.c:221 #5 0xc0616c43 in kdb_trap (type=3D3, code=3D0, tf=3D0x1) at /FreeBSD/5-STA= BLE/sys/kern/subr_kdb.c:417 #6 0xc07893e4 in trap (frame=3D {tf_fs =3D 24, tf_es =3D 16, tf_ds =3D 16, tf_edi =3D -1065279731, tf= _esi =3D 1, tf_ebp =3D -1064269468, tf_isp =3D -1064269488, tf_ebx =3D -106= 4269424, tf_edx =3D 0, tf_ecx =3D -1056882688, tf_eax =3D 18, tf_trapno =3D= 3, tf_err =3D 0, tf_eip =3D -1067357785, tf_cs =3D 8, tf_eflags =3D 16530,= tf_esp =3D -1064269436, tf_ss =3D -1067450363}) at /FreeBSD/5-STABLE/sys/i386/i386/trap.c:576 #7 0xc0777cda in calltrap () at /FreeBSD/5-STABLE/sys/i386/i386/exception.= s:140 #8 0x00000018 in ?? () #9 0x00000010 in ?? () #10 0x00000010 in ?? () #11 0xc0811f0d in ?? () #12 0x00000001 in ?? () #13 0xc0908964 in dblfault_stack () #14 0xc0908950 in dblfault_stack () #15 0xc0908990 in dblfault_stack () #16 0x00000000 in ?? () #17 0xc1014000 in ?? () #18 0x00000012 in ?? () #19 0x00000003 in ?? () #20 0x00000000 in ?? () #21 0xc06169a7 in kdb_enter (msg=3D0x0) at cpufunc.h:56 #22 0xc0600005 in panic (fmt=3D0xc0811f0d "double fault") at /FreeBSD/5-STA= BLE/sys/kern/kern_shutdown.c:542 #23 0xc0789986 in dblfault_handler () at /FreeBSD/5-STABLE/sys/i386/i386/tr= ap.c:841 #24 0x00000000 in ?? () [simon@eddie:geom_mirror] sudo bsdlabel ad0s1 # /dev/ad0s1: 8 partitions: # size offset fstype [fsize bsize bps/cpg] a: 409600 0 4.2BSD 2048 16384 97=20 b: 524288 409600 swap =20 c: 19792017 0 unused 0 0 # "raw" part, don't= edit e: 1048576 933888 4.2BSD 2048 16384 89=20 f: 17809553 1982464 4.2BSD 2048 16384 89=20 [simon@eddie:geom_mirror] sudo bsdlabel ad1s1 # /dev/ad1s1: 8 partitions: # size offset fstype [fsize bsize bps/cpg] c: 19807137 0 unused 0 0 # "raw" part, don't= edit Anybody get a clue about what's really going wrong here? --=20 Simon L. Nielsen FreeBSD Documentation Team --PHCdUe6m4AxPMzOu Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.5 (FreeBSD) iD8DBQFBOeuuh9pcDSc1mlERAvZeAJ4tN2muSg2V7NAK0kPAQDMQo3S6qgCeJ3+F yUx6fBntp6gJ6MjSUqTWrvQ= =uq4Z -----END PGP SIGNATURE----- --PHCdUe6m4AxPMzOu--