From owner-freebsd-bugs@FreeBSD.ORG Sat Aug 30 13:10:03 2008 Return-Path: Delivered-To: freebsd-bugs@hub.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 070B01065685 for ; Sat, 30 Aug 2008 13:10:03 +0000 (UTC) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [IPv6:2001:4f8:fff6::28]) by mx1.freebsd.org (Postfix) with ESMTP id D45E28FC17 for ; Sat, 30 Aug 2008 13:10:02 +0000 (UTC) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (gnats@localhost [127.0.0.1]) by freefall.freebsd.org (8.14.2/8.14.2) with ESMTP id m7UDA2SN033520 for ; Sat, 30 Aug 2008 13:10:02 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.14.2/8.14.1/Submit) id m7UDA2YX033513; Sat, 30 Aug 2008 13:10:02 GMT (envelope-from gnats) Resent-Date: Sat, 30 Aug 2008 13:10:02 GMT Resent-Message-Id: <200808301310.m7UDA2YX033513@freefall.freebsd.org> Resent-From: FreeBSD-gnats-submit@FreeBSD.org (GNATS Filer) Resent-To: freebsd-bugs@FreeBSD.org Resent-Reply-To: FreeBSD-gnats-submit@FreeBSD.org, David Naylor Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 077241065670 for ; Sat, 30 Aug 2008 13:07:00 +0000 (UTC) (envelope-from nobody@FreeBSD.org) Received: from www.freebsd.org (www.freebsd.org [IPv6:2001:4f8:fff6::21]) by mx1.freebsd.org (Postfix) with ESMTP id E403E8FC0C for ; Sat, 30 Aug 2008 13:06:59 +0000 (UTC) (envelope-from nobody@FreeBSD.org) Received: from www.freebsd.org (localhost [127.0.0.1]) by www.freebsd.org (8.14.2/8.14.2) with ESMTP id m7UD6xll028681 for ; Sat, 30 Aug 2008 13:06:59 GMT (envelope-from nobody@www.freebsd.org) Received: (from nobody@localhost) by www.freebsd.org (8.14.2/8.14.1/Submit) id m7UD6xQN028680; Sat, 30 Aug 2008 13:06:59 GMT (envelope-from nobody) Message-Id: <200808301306.m7UD6xQN028680@www.freebsd.org> Date: Sat, 30 Aug 2008 13:06:59 GMT From: David Naylor To: freebsd-gnats-submit@FreeBSD.org X-Send-Pr-Version: www-3.1 Cc: Subject: kern/126973: System hand with unionfs and init chroot X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 30 Aug 2008 13:10:03 -0000 >Number: 126973 >Category: kern >Synopsis: System hand with unionfs and init chroot >Confidential: no >Severity: critical >Priority: high >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Sat Aug 30 13:10:02 UTC 2008 >Closed-Date: >Last-Modified: >Originator: David Naylor >Release: 8-Current >Organization: Private >Environment: FreeBSD dragonmini.dg 8.0-CURRENT FreeBSD 8.0-CURRENT #0: Tue Aug 26 20:30:23 SAST 2008 root@dragonmini.dg:/tmp/usr/src/sys/GENERIC i386 >Description: The system hangs when init chroot to a unionfs directory. This is a regression as 7-Beta did not have this problem >How-To-Repeat: Add the following to loader.conf: init_script="chroot" init_chroot="/base" Have the chroot script do the following: # mount -t unionfs -o noatime -o copymode=transparent /tmpfs /base {where /tmpfs is a suitable unionable filesystem, such as ufs} (please see attached for the output [via serial] of the boot [with the chroot file content]) >Fix: Patch attached with submission follows: OK more chroot *** FILE chroot BEGIN *** #!/rescue/sh PATH=/rescue trap 'echo Recovery console: ; PATH=/rescue /rescue/csh -i ; exit' 1 2 3 6 15 echo -n "Mounting compressed base:" mount -t cd9660 -o ro /dev/$(mdconfig -a -t vnode -f /base.uzip).uzip /base echo . echo -n "Allocating temporary filesystem:" mdmfs -s 32m md /tmpfs echo . echo -n "Overlaying temporary filesystem over base:" mount -t unionfs -o noatime -o copymode=transparent /tmpfs /base echo . umount /dev echo "Chroot to base..." *** FILE chroot END *** OK boot /boot/kernel/acpi.ko text=0x521cc data=0x2640+0x182c syms=[0x4+0x8b80+0x4+0xbe19] GDB: no debug ports present KDB: debugger backends: ddb KDB: current backend: ddb 1048576K of memory above 4GB ignored Copyright (c) 1992-2008 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 8.0-CURRENT #0: Wed Aug 27 23:13:13 SAST 2008 root@dragonmini.dg:/tmp/usr/src/sys/GENERIC WARNING: WITNESS option enabled, expect reduced performance. module_register: module g_label already exists! Module g_label failed to register: 17 Timecounter "i8254" frequency 1193182 Hz quality 0 CPU: Intel(R) Core(TM)2 Quad CPU @ 2.40GHz (2400.00-MHz 686-class CPU) Origin = "GenuineIntel" Id = 0x6f7 Stepping = 7 Features=0xbfebfbff Features2=0xe3bd AMD Features=0x20100000 AMD Features2=0x1 Cores per package: 4 real memory = 3221159936 (3071 MB) avail memory = 3149418496 (3003 MB) ACPI APIC Table: FreeBSD/SMP: Multiprocessor System Detected: 4 CPUs cpu0 (BSP): APIC ID: 0 cpu1 (AP): APIC ID: 1 cpu2 (AP): APIC ID: 2 cpu3 (AP): APIC ID: 3 ioapic0: Changing APIC ID to 2 ioapic0 irqs 0-23 on motherboard kbd1 at kbdmux0 ath_hal: 0.9.20.3 (AR5210, AR5211, AR5212, RF5111, RF5112, RF2413, RF5413) acpi0: on motherboard acpi0: [ITHREAD] acpi0: Power Button (fixed) acpi0: reservation of 0, a0000 (3) failed acpi0: reservation of 100000, bfef0000 (3) failed Timecounter "ACPI-fast" frequency 3579545 Hz quality 1000 acpi_timer0: <24-bit timer at 3.579545MHz> port 0x1008-0x100b on acpi0 acpi_hpet0: iomem 0xfeff0000-0xfeff03ff on acpi0 Timecounter "HPET" frequency 25000000 Hz quality 900 acpi_button0: on acpi0 pcib0: port 0xcf8-0xcff on acpi0 pci0: on pcib0 pci0: at device 0.1 (no driver attached) pci0: at device 0.2 (no driver attached) pci0: at device 0.3 (no driver attached) pci0: at device 0.4 (no driver attached) pci0: at device 0.5 (no driver attached) pci0: at device 0.6 (no driver attached) pci0: at device 0.7 (no driver attached) pci0: at device 1.0 (no driver attached) pci0: at device 1.1 (no driver attached) pci0: at device 1.2 (no driver attached) pci0: at device 1.3 (no driver attached) pci0: at device 1.4 (no driver attached) pci0: at device 1.5 (no driver attached) pci0: at device 1.6 (no driver attached) pci0: at device 2.0 (no driver attached) pci0: at device 2.1 (no driver attached) pci0: at device 2.2 (no driver attached) pcib1: at device 3.0 on pci0 pci1: on pcib1 vgapci0: port 0xc000-0xc07f mem 0xe5000000-0xe5ffffff,0xc0000000-0xcfffffff,0xe6000000-0xe6ffffff irq 16 at device 0.0 on pci1 pcib2: at device 5.0 on pci0 pci2: on pcib2 vgapci1: port 0xd000-0xd07f mem 0xe2000000-0xe2ffffff,0xd0000000-0xdfffffff,0xe3000000-0xe3ffffff irq 16 at device 0.0 on pci2 pci0: at device 9.0 (no driver attached) isab0: at device 10.0 on pci0 isa0: on isab0 pci0: at device 10.1 (no driver attached) pci0: at device 10.2 (no driver attached) ohci0: mem 0xe8106000-0xe8106fff irq 21 at device 11.0 on pci0 ohci0: [GIANT-LOCKED] ohci0: [ITHREAD] usb0: OHCI version 1.0, legacy support usb0: on ohci0 usb0: USB revision 1.0 uhub0: on usb0 uhub0: 8 ports with 8 removable, self powered ehci0: mem 0xe8107000-0xe81070ff irq 22 at device 11.1 on pci0 ehci0: [GIANT-LOCKED] ehci0: [ITHREAD] usb1: EHCI version 1.0 usb1: companion controller, 8 ports each: usb0 usb1: on ehci0 usb1: USB revision 2.0 uhub1: on usb1 uhub1: 8 ports with 8 removable, self powered umass0: on uhub1 atapci0: port 0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0xf000-0xf00f at device 13.0 on pci0 ata0: on atapci0 ata0: [ITHREAD] ata1: on atapci0 ata1: [ITHREAD] atapci1: port 0x9f0-0x9f7,0xbf0-0xbf3,0x970-0x977,0xb70-0xb73,0xe600-0xe60f mem 0xe8104000-0xe8104fff irq 23 at device 14.0 on pci0 atapci1: [ITHREAD] ata2: on atapci1 ata2: [ITHREAD] ata3: on atapci1 ata3: [ITHREAD] atapci2: port 0x9e0-0x9e7,0xbe0-0xbe3,0x960-0x967,0xb60-0xb63,0xeb00-0xeb0f mem 0xe8105000-0xe8105fff irq 20 at device 15.0 on pci0 atapci2: [ITHREAD] ata4: on atapci2 ata4: [ITHREAD] ata5: on atapci2 ata5: [ITHREAD] pcib3: at device 16.0 on pci0 pci3: on pcib3 ral0: mem 0xe8000000-0xe8007fff irq 17 at device 7.0 on pci3 ral0: MAC/BBP RT2561C, RF RT2527 ral0: [ITHREAD] pci0: at device 16.1 (no driver attached) nfe0: port 0xec00-0xec07 mem 0xe8108000-0xe8108fff irq 22 at device 20.0 on pci0 miibus0: on nfe0 rgephy0: PHY 1 on miibus0 rgephy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseT, 1000baseT-FDX, auto nfe0: Ethernet address: 00:1d:7d:00:6e:1a nfe0: [FILTER] atrtc0: port 0x70-0x73 on acpi0 fdc0: port 0x3f0-0x3f5,0x3f7 irq 6 drq 2 on acpi0 fdc0: [FILTER] atkbdc0: port 0x60,0x64 irq 1 on acpi0 atkbd0: irq 1 on atkbdc0 kbd0 at atkbd0 atkbd0: [GIANT-LOCKED] atkbd0: [ITHREAD] psm0: irq 12 on atkbdc0 psm0: [GIANT-LOCKED] psm0: [ITHREAD] psm0: model IntelliMouse, device ID 3 cpu0: on acpi0 acpi_perf0: on cpu0 p4tcc0: on cpu0 cpu1: on acpi0 est1: on cpu1 est1: Guessed bus clock (high) of 266 MHz est1: Guessed bus clock (low) of 266 MHz est: CPU supports Enhanced Speedstep, but is not recognized. est: cpu_vendor GenuineIntel, msr 925092506000925 device_attach: est1 attach returned 6 p4tcc1: on cpu1 cpu2: on acpi0 est2: on cpu2 est2: Guessed bus clock (high) of 266 MHz est2: Guessed bus clock (low) of 266 MHz est: CPU supports Enhanced Speedstep, but is not recognized. est: cpu_vendor GenuineIntel, msr 925092506000925 device_attach: est2 attach returned 6 p4tcc2: on cpu2 cpu3: on acpi0 est3: on cpu3 est3: Guessed bus clock (high) of 266 MHz est3: Guessed bus clock (low) of 266 MHz est: CPU supports Enhanced Speedstep, but is not recognized. est: cpu_vendor GenuineIntel, msr 925092506000925 device_attach: est3 attach returned 6 p4tcc3: on cpu3 pmtimer0 on isa0 orm0: at iomem 0xd0000-0xd3fff pnpid ORM0000 on isa0 ppc0: at port 0x378-0x37f irq 7 on isa0 ppc0: Generic chipset (NIBBLE-only) in COMPATIBLE mode ppbus0: on ppc0 ppbus0: [ITHREAD] plip0: on ppbus0 plip0: WARNING: using obsoleted IFF_NEEDSGIANT flag lpt0: on ppbus0 lpt0: Interrupt-driven port ppi0: on ppbus0 ppc0: [GIANT-LOCKED] ppc0: [ITHREAD] sc0: at flags 0x100 on isa0 sc0: VGA <16 virtual consoles, flags=0x300> uart0: <16550 or compatible> at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0 uart0: [FILTER] uart0: console (9600,n,8,1) vga0: at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0 Timecounters tick every 1.000 msec The GEOM class LABEL is already loaded. acd0: DMA limited to UDMA33, device found non-ATA66 cable acd0: DVDR at ata0-slave UDMA33 ad4: 305244MB at ata2-master SATA150 ad8: 238474MB at ata4-master SATA150 acd0: FAILURE - INQUIRY ILLEGAL REQUEST asc=0x24 ascq=0x00 acd0: FAILURE - INQUIRY ILLEGAL REQUEST asc=0x24 ascq=0x00 SMP: AP CPU #1 Launched! SMP: AP CPU #3 Launched! SMP: AP CPU #2 Launched! WARNING: WITNESS option enabled, expect reduced performance. cd0 at ata0 bus 0 target 1 lun 0 cd0: Removable CD-ROM SCSI-0 device cd0: 33.000MB/s transfers cd0: Attempt to query device size failed: NOT READY, Medium not present - tray closed da0 at umass-sim0 bus 0 target 0 lun 0 da0: Removable Direct Access SCSI-2 device da0: 40.000MB/s transfers da0: 984MB (2015232 512 byte sectors: 64H 32S/T 984C) GEOM_LABEL: Label for provider da0s1a is ufs/DragonBSD. lock order reversal: (sleepable after non-sleepable) 1st 0xc658601c struct mount mtx (struct mount mtx) @ /usr/src/sys/kern/vfs_subr.c:346 2nd 0xc6586000 vfslock (vfslock) @ /usr/src/sys/kern/vfs_subr.c:373 KDB: stack backtrace: db_trace_self_wrapper(c0b228e2,c5fbab14,c07d16c8,4,c0b1e285,...) at db_trace_self_wrapper+0x26 kdb_backtrace(4,c0b1e285,c0d9c830,c6076048,c5fbab6c,...) at kdb_backtrace+0x29 _witness_debugger(c0b251ac,c6586000,c0b2b960,c6076048,c0b2bf05,...) at _witness_debugger+0x1e witness_checkorder(c6586000,1,c0b2bf05,175,c0d9c844,...) at witness_checkorder+0x7ad __lockmgr_args(c6586000,200100,c658601c,0,0,...) at __lockmgr_args+0x21b vfs_busy(c6586000,200,0,c60cad20,1,...) at vfs_busy+0x1b4 vfs_mount_alloc(0,c0bf1420,c0b2bcab,c60cad20,c080e703,...) at vfs_mount_alloc+0x78 vfs_mountroot(c0c621b0,4,c0b1a1ef,264,0,...) at vfs_mountroot+0x253 start_init(0,c5fbad38,c0b1bbd2,322,c60c8d0c,...) at start_init+0x65 fork_exit(c075e345,0,c5fbad38) at fork_exit+0xb8 fork_trampoline() at fork_trampoline+0x8 --- trap 0, eip = 0, esp = 0xc5fbad70, ebp = 0 --- lock order reversal: (sleepable after non-sleepable) 1st 0xc6453e10 vnode interlock (vnode interlock) @ /usr/src/sys/fs/devfs/devfs_vnops.c:286 2nd 0xc6453df4 devfs (devfs) @ /usr/src/sys/kern/vfs_subr.c:2044 KDB: stack backtrace: db_trace_self_wrapper(c0b228e2,c5fbaa3c,c07d16c8,4,c0b1e285,...) at db_trace_self_wrapper+0x26 kdb_backtrace(4,c0b1e285,c0d9c830,c6076180,c5fbaa94,...) at kdb_backtrace+0x29 _witness_debugger(c0b251ac,c6453df4,c0b15b17,c6076180,c0b2bf05,...) at _witness_debugger+0x1e witness_checkorder(c6453df4,9,c0b2bf05,7fc,c0b15ccd,...) at witness_checkorder+0x7ad __lockmgr_args(c6453df4,80100,c6453e10,0,0,0,c0b2bf05,7fc) at __lockmgr_args+0x75b vop_stdlock(c5fbab8c,c0b15ccd,c0b18ea8,80100,c6453d9c,...) at vop_stdlock+0x5c VOP_LOCK1_APV(c0bf1500,c5fbab8c,c0c2f4a0,c6453d9c,80100,...) at VOP_LOCK1_APV+0xab _vn_lock(c6453d9c,80100,c0b2bf05,7fc,8,...) at _vn_lock+0x5e vget(c6453d9c,80100,c60cad20,11f,c0b15c6a,...) at vget+0xc1 devfs_allocv(c651d400,c6586000,c5fbac24,c60cad20,c0d9c830,...) at devfs_allocv+0x10e devfs_root(c6586000,80000,c0dc8354,c60cad20,4,...) at devfs_root+0x51 set_rootvnode(c0dc8340,0,c0b2b862,5fa,c080e703,...) at set_rootvnode+0x2d vfs_mountroot(c0c621b0,4,c0b1a1ef,264,0,...) at vfs_mountroot+0x331 start_init(0,c5fbad38,c0b1bbd2,322,c60c8d0c,...) at start_init+0x65 fork_exit(c075e345,0,c5fbad38) at fork_exit+0xb8 fork_trampoline() at fork_trampoline+0x8 --- trap 0, eip = 0, esp = 0xc5fbad70, ebp = 0 --- Trying to mount root from ufs:/dev/ufs/DragonBSD lock order reversal: (sleepable after non-sleepable) 1st 0xc659e28c vnode interlock (vnode interlock) @ /usr/src/sys/kern/vfs_hash.c:79 2nd 0xc659e270 ufs (ufs) @ /usr/src/sys/kern/vfs_subr.c:2044 KDB: stack backtrace: db_trace_self_wrapper(c0b228e2,c5fba914,c07d16c8,4,c0b1e285,...) at db_trace_self_wrapper+0x26 kdb_backtrace(4,c0b1e285,c0d9bb20,c6076250,c5fba96c,...) at kdb_backtrace+0x29 _witness_debugger(c0b251ac,c659e270,c0b19792,c6076250,c0b2bf05,...) at _witness_debugger+0x1e witness_checkorder(c659e270,9,c0b2bf05,7fc,c5fba9c0,...) at witness_checkorder+0x7ad __lockmgr_args(c659e270,80100,c659e28c,0,0,...) at __lockmgr_args+0x75b ffs_lock(c5fbaa70,c0b2b4f4,c0b18ea8,80100,c659e218,...) at ffs_lock+0x7d VOP_LOCK1_APV(c0c175c0,c5fbaa70,c0c2f4a0,c659e218,80100,...) at VOP_LOCK1_APV+0xab _vn_lock(c659e218,80100,c0b2bf05,7fc,4,...) at _vn_lock+0x5e vget(c659e218,80100,c60cad20,50,0,...) at vget+0xc1 vfs_hash_get(c6585d20,2,80000,c60cad20,c5fbab68,...) at vfs_hash_get+0xdf ffs_vget(c6585d20,2,80000,c5fbab68,c0b2b862,...) at ffs_vget+0x43 ufs_root(c6585d20,80000,c0dc8354,c60cad20,4,...) at ufs_root+0x28 set_rootvnode(c6453e10,0,c0b2b862,619,c0b18eaa,...) at set_rootvnode+0x2d vfs_mountroot_try(c0b2be61,c0b18eaa,c0b10f43,1,c080e703,...) at vfs_mountroot_try+0x2c0 vfs_mountroot(c0c621b0,4,c0b1a1ef,264,0,...) at vfs_mountroot+0x3f1 start_init(0,c5fbad38,c0b1bbd2,322,c60c8d0c,...) at start_init+0x65 fork_exit(c075e345,0,c5fbad38) at fork_exit+0xb8 fork_trampoline() at fork_trampoline+0x8 --- trap 0, eip = 0, esp = 0xc5fbad70, ebp = 0 --- lock order reversal: (sleepable after non-sleepable) 1st 0xc659e2c0 bufobj interlock (bufobj interlock) @ /usr/src/sys/kern/vfs_bio.c:2429 2nd 0xe60e5c80 bufwait (bufwait) @ /usr/src/sys/kern/vfs_bio.c:2443 KDB: stack backtrace: db_trace_self_wrapper(c0b228e2,c5fba740,c07d16c8,4,c0b1e285,...) at db_trace_self_wrapper+0x26 kdb_backtrace(4,c0b1e285,c0d9bbd0,c6073670,c5fba798,...) at kdb_backtrace+0x29 _witness_debugger(c0b251ac,e60e5c80,c0b2a82b,c6073670,c0b29dda,...) at _witness_debugger+0x1e witness_checkorder(e60e5c80,9,c0b29dda,98b,c0ab205a,...) at witness_checkorder+0x7ad __lockmgr_args(e60e5c80,81900,c659e2c0,c0b2a787,50,...) at __lockmgr_args+0x75b getblk(c659e218,0,0,800,0,...) at getblk+0x144 breadn(c659e218,0,0,800,0,...) at breadn+0x44 bread(c659e218,0,0,800,0,...) at bread+0x4c ffs_blkatoff(c659e218,0,0,0,c5fba9ac,...) at ffs_blkatoff+0xc6 ufs_lookup(c5fba9ec,c659e218,c5fbab3c,c659e218,c5fbaa0c,...) at ufs_lookup+0x2f2 VOP_CACHEDLOOKUP_APV(c0c175c0,c5fba9ec,c5fbab3c,c5fbab28,c0c2f140,...) at VOP_CACHEDLOOKUP_APV+0xa0 vfs_cache_lookup(c5fbaa6c,c5fbaa6c,0,80000,c659e218,...) at vfs_cache_lookup+0xc3 VOP_LOOKUP_APV(c0c175c0,c5fbaa6c,c0b2b610,1b0,c5fbab28,...) at VOP_LOOKUP_APV+0xaa lookup(c5fbab10,c0b2b610,d8,c0,c608cc2c,...) at lookup+0x567 namei(c5fbab10,c5fbab28,c07d1539,c0d9bbd0,c0b2bca7,...) at namei+0x430 kern_unlinkat(c60cad20,ffffff9c,c0b2bca7,1,c5fbac60,...) at kern_unlinkat+0x3f kern_unlink(c60cad20,c0b2bca7,1,635,0,...) at kern_unlink+0x27 vfs_mountroot_try(c0b2be61,c0b18eaa,c0b10f43,1,c080e703,...) at vfs_mountroot_try+0x475 vfs_mountroot(c0c621b0,4,c0b1a1ef,264,0,...) at vfs_mountroot+0x3f1 start_init(0,c5fbad38,c0b1bbd2,322,c60c8d0c,...) at start_init+0x65 fork_exit(c075e345,0,c5fbad38) at fork_exit+0xb8 fork_trampoline() at fork_trampoline+0x8 --- trap 0, eip = 0, esp = 0xc5fbad70, ebp = 0 --- Mounting compreslocsed base:k order reversal: (sleepable after non-sleepable) 1st 0xc6453180 vnode interlock (vnode interlock) @ /usr/src/sys/ufs/ufs/ufs_dirhash.c:167 2nd 0xc654d200 dirhash (dirhash) @ /usr/src/sys/ufs/ufs/ufs_dirhash.c:178 KDB: stack backtrace: db_trace_self_wrapper(c0b228e2,f52a37dc,c07d16c8,4,c0b1e285,...) at db_trace_self_wrapper+0x26 kdb_backtrace(4,c0b1e285,c0d9bbd0,c60762b8,f52a3834,...) at kdb_backtrace+0x29 _witness_debugger(c0b251ac,c654d200,c0b43137,c60762b8,c0b42dd0,...) at _witness_debugger+0x1e witness_checkorder(c654d200,1,c0b42dd0,b2,c0ab205a,...) at witness_checkorder+0x7ad __lockmgr_args(c654d200,200100,c6453180,0,0,...) at __lockmgr_args+0x21b ufsdirhash_build(c659de0c,a00,0,c65abd20,3,...) at ufsdirhash_build+0x1d0 ufs_lookup(f52a39fc,c645310c,f52a3bb4,c645310c,f52a3a1c,...) at ufs_lookup+0xf0 VOP_CACHEDLOOKUP_APV(c0c175c0,f52a39fc,f52a3bb4,f52a3ba0,c0c2f140,...) at VOP_CACHEDLOOKUP_APV+0xa0 vfs_cache_lookup(f52a3a7c,f52a3a7c,0,80000,c645310c,...) at vfs_cache_lookup+0xc3 VOP_LOOKUP_APV(c0c175c0,f52a3a7c,c0b2b610,1b0,f52a3ba0,...) at VOP_LOOKUP_APV+0xaa lookup(f52a3b88,c0b2b610,d8,c0,c656b52c,...) at lookup+0x567 namei(f52a3b88,0,f52a3c4b,f52a3c44,c0b18ea8,...) at namei+0x430 kern_statat(c65abd20,0,ffffff9c,8604434,0,...) at kern_statat+0x5f kern_stat(c65abd20,8604434,0,f52a3c1c,c65abd20,...) at kern_stat+0x36 stat(c65abd20,f52a3cf8,8,f52a3d2c,c0bf5c60,...) at stat+0x2b syscall(f52a3d38) at syscall+0x27b Xint0x80_syscall() at Xint0x80_syscall+0x20 --- syscall (188, FreeBSD ELF32, stat), eip = 0x830916b, esp = 0xbfbfe97c, ebp = 0xbfbfea18 --- WARNING: opening backing store: /base.uzip readonly md0.uzip: 26993 x 8192 blocks GEOM_LABEL: Label for provider md0.uzip is iso9660/DragonBSD. >Release-Note: >Audit-Trail: >Unformatted: