From owner-freebsd-current@FreeBSD.ORG Tue Mar 4 21:27:06 2008 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id B6BB0106566C for ; Tue, 4 Mar 2008 21:27:06 +0000 (UTC) (envelope-from gahr@FreeBSD.org) Received: from cpanel03.rubas-s03.net (cpanel03.rubas-s03.net [195.182.222.73]) by mx1.freebsd.org (Postfix) with ESMTP id 510748FC2C for ; Tue, 4 Mar 2008 21:27:06 +0000 (UTC) (envelope-from gahr@FreeBSD.org) Received: from [213.142.182.66] (helo=gahrtop.localhost) by cpanel03.rubas-s03.net with esmtpsa (TLSv1:AES256-SHA:256) (Exim 4.68) (envelope-from ) id 1JWefB-00050R-Bo for freebsd-current@freebsd.org; Tue, 04 Mar 2008 22:27:05 +0100 Message-ID: <47CDBEB4.8000602@FreeBSD.org> Date: Tue, 04 Mar 2008 22:27:16 +0100 From: Pietro Cerutti Organization: The FreeBSD Project User-Agent: Thunderbird 2.0.0.12 (X11/20080229) MIME-Version: 1.0 To: freebsd-current X-Enigmail-Version: 0.95.5 OpenPGP: id=9571F78E; url=http://gahr.ch/pgp/ Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - cpanel03.rubas-s03.net X-AntiAbuse: Original Domain - freebsd.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - FreeBSD.org X-Source: X-Source-Args: X-Source-Dir: Subject: devfs related kernel panic X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 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: Tue, 04 Mar 2008 21:27:06 -0000 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 Dear all, I have another kernel panic, this time devfs-related. lines 145-147 of sys/fs/devfs/devfs_rule.c read like this: 145 ds = devfs_ruleset_bynum(dm->dm_ruleset); 146 KASSERT(ds != NULL, ("mount-point has NULL ruleset")); 147 devfs_ruleset_applyde(ds, de, devfs_rule_depth); However, it would be good if devfs_ruleset_applyde did get called, even on system without the INVARIANT option. In my case, I'm upgrading from 6.3 to 7.0, and in the process, I'm flushing + reinstalling all ports. At some point in time, I find myself without CUPS installed, and with this rule: #[system=10] #add path 'lpt*' mode 0660 group cups devfs prints an error saying that the cups user cannot be found, and when I try to connect to the host via SSH, it panics: Fatal trap 12: page fault while in kernel mode cpuid = 0; apic id = 00 fault virtual address = 0x8 fault code = supervisor read, page not present instruction pointer = 0x20:0xc06e87da stack pointer = 0x28:0xd6174814 frame pointer = 0x28:0xd6174820 code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, def32 1, gran 1 processor eflags = interrupt enabled, resume, IOPL = 0 current process = 4969 (sshd) trap number = 12 panic: page fault cpuid = 0 Uptime: 17m24s Physical memory: 499 MB Dumping 96 MB: 81 65 49 33 17 1 #0 doadump () at pcpu.h:195 195 pcpu.h: No such file or directory. in pcpu.h (kgdb) bt #0 doadump () at pcpu.h:195 #1 0xc0754457 in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:409 #2 0xc0754719 in panic (fmt=Variable "fmt" is not available. ) at /usr/src/sys/kern/kern_shutdown.c:563 #3 0xc0a4905c in trap_fatal (frame=0xd61747d4, eva=8) at /usr/src/sys/i386/i386/trap.c:899 #4 0xc0a492e0 in trap_pfault (frame=0xd61747d4, usermode=0, eva=8) at /usr/src/sys/i386/i386/trap.c:812 #5 0xc0a49c8c in trap (frame=0xd61747d4) at /usr/src/sys/i386/i386/trap.c:490 #6 0xc0a2fc0b in calltrap () at /usr/src/sys/i386/i386/exception.s:139 #7 0xc06e87da in devfs_ruleset_applyde (ds=0x0, de=0xc3517500, depth=1) at /usr/src/sys/fs/devfs/devfs_rule.c:626 #8 0xc06e88bf in devfs_rules_apply (dm=0xc2eed340, de=0xc3517500) at /usr/src/sys/fs/devfs/devfs_rule.c:147 #9 0xc06e8373 in devfs_populate_loop (dm=0xc2eed340, cleanup=Variable "cleanup" is not available. ) at /usr/src/sys/fs/devfs/devfs_devs.c:460 #10 0xc06e840e in devfs_populate (dm=0xc2eed340) at /usr/src/sys/fs/devfs/devfs_devs.c:485 #11 0xc06ec323 in devfs_lookup (ap=0xd61749b8) at /usr/src/sys/fs/devfs/devfs_vnops.c:641 #12 0xc0a5f256 in VOP_LOOKUP_APV (vop=0xc0b71680, a=0xd61749b8) at vnode_if.c:99 #13 0xc07c28f1 in lookup (ndp=0xd6174b80) at vnode_if.h:57 #14 0xc07c35ff in namei (ndp=0xd6174b80) at /usr/src/sys/kern/vfs_lookup.c:219 #15 0xc07d9fd7 in vn_open_cred (ndp=0xd6174b80, flagp=0xd6174c78, cmode=0, cred=0xc35af200, fp=0xc3025e58) at /usr/src/sys/kern/vfs_vnops.c:188 #16 0xc07da2a3 in vn_open (ndp=0xd6174b80, flagp=0xd6174c78, cmode=0, fp=0xc3025e58) at /usr/src/sys/kern/vfs_vnops.c:94 #17 0xc07d7f27 in kern_open (td=0xc2ff0630, path=0xbfbfe541
, pathseg=UIO_USERSPACE, flags=3, mode=0) at /usr/src/sys/kern/vfs_syscalls.c:1028 #18 0xc07d8490 in open (td=0xc2ff0630, uap=0xd6174cfc) at /usr/src/sys/kern/vfs_syscalls.c:995 #19 0xc0a49635 in syscall (frame=0xd6174d38) at /usr/src/sys/i386/i386/trap.c:1035 #20 0xc0a2fc70 in Xint0x80_syscall () at /usr/src/sys/i386/i386/exception.s:196 #21 0x00000033 in ?? () Previous frame inner to this frame (corrupt stack?) (kgdb) up 8 #8 0xc06e88bf in devfs_rules_apply (dm=0xc2eed340, de=0xc3517500) at /usr/src/sys/fs/devfs/devfs_rule.c:147 warning: Source file is more recent than executable. 147 devfs_ruleset_applyde(ds, de, devfs_rule_depth); (kgdb) list 142 if (dm->dm_ruleset == 0) 143 return; 144 sx_slock(&sx_rules); 145 ds = devfs_ruleset_bynum(dm->dm_ruleset); 146 KASSERT(ds != NULL, ("mount-point has NULL ruleset")); 147 devfs_ruleset_applyde(ds, de, devfs_rule_depth); 148 sx_sunlock(&sx_rules); 149 } 150 151 /* (kgdb) print ds $1 = (struct devfs_ruleset *) 0x0 (kgdb) down #7 0xc06e87da in devfs_ruleset_applyde (ds=0x0, de=0xc3517500, depth=1) at /usr/src/sys/fs/devfs/devfs_rule.c:626 626 { - -- Pietro Cerutti gahr@FreeBSD.org PGP Public Key: http://gahr.ch/pgp -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.8 (FreeBSD) iEYEAREKAAYFAkfNvrQACgkQwMJqmJVx945/GQCgnwnT04Vbh110lZXDxayHSLfq qfgAoJ+3ThriZo3tfY5g/9Wa+IWaEzQF =XMPr -----END PGP SIGNATURE-----