Hello, I'm running CURRENT inside a Parallels VM and I am getting regular panic when writing to a ZFS raidz pool. UMA is complaining and panic(). It is rather easy to reproduce (cvs update, rsync all generates such panics). Another interesing point is that it always occurs after FLUSHCACHE TIMEOUT messages. The pool is made of 3 slices ad0s2 ad0s3 from the first virtual disk and ad2s1 from a second virtual disk (to get 3 "disks" for raidz). Filesystem 1024-blocks Used Avail Capacity Mounted on /dev/ad0s1a 9647558 2708134 6167620 31% / devfs 1 1 0 100% /dev tank/home 19787392 128 19787264 0% /home tank 19787264 0 19787264 0% /tank tank/usr 19902336 115072 19787264 1% /tank/usr tank/usr/obj 19787264 0 19787264 0% /tank/usr/obj tank/usr/ports 19796224 8960 19787264 0% /tank/usr/ports tank/usr/ports/distfiles 19787264 0 19787264 0% /tank/usr/ports/distfiles tank/usr/src 19983360 196096 19787264 1% /tank/usr/src ----- GNU gdb 6.1.1 [FreeBSD] Copyright 2004 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "i386-marcel-freebsd". Unread portion of the kernel message buffer: ad0: FAILURE - FLUSHCACHE timed out ad2: FAILURE - FLUSHCACHE timed out Slab at 0xc2b90f70, freei 18 = 0. panic: Duplicate free of item 0xc2b90948 from zone 0xc1061780(g_bio) cpuid = 0 KDB: enter: panic panic: from debugger cpuid = 0 Uptime: 7m28s Physical memory: 503 MB Dumping 172 MB: 157 141 125 109 93 77 61 45 29 13 #0 doadump () at pcpu.h:172 172 __asm __volatile("movl %%fs:0,%0" : "=r" (td)); (kgdb) where #0 doadump () at pcpu.h:172 #1 0xc0525a40 in boot (howto=260) at ../../../kern/kern_shutdown.c:409 #2 0xc0525d4a in panic (fmt=0xc0680204 "from debugger") at ../../../kern/kern_shutdown.c:563 #3 0xc044a13e in db_panic (addr=-1068219313, have_addr=0, count=-1, modif=0xdceb09e0 "") at ../../../ddb/db_command.c:433 #4 0xc044a0d7 in db_command (last_cmdp=0xc0705f64, cmd_table=0x0) at ../../../ddb/db_command.c:401 #5 0xc044a192 in db_command_loop () at ../../../ddb/db_command.c:453 #6 0xc044bddd in db_trap (type=3, code=0) at ../../../ddb/db_main.c:222 #7 0xc0544728 in kdb_trap (type=3, code=0, tf=0xdceb0b78) at ../../../kern/subr_kdb.c:502 #8 0xc0658871 in trap (frame=0xdceb0b78) at ../../../i386/i386/trap.c:621 #9 0xc064319b in calltrap () at ../../../i386/i386/exception.s:139 #10 0xc054444f in kdb_enter (msg=0x12 <Address 0x12 out of bounds>) at cpufunc.h:60 #11 0xc0525cfc in panic ( fmt=0xc06ac621 "Duplicate free of item %p from zone %p(%s)\n") at ../../../kern/kern_shutdown.c:547 #12 0xc06118f4 in uma_dbg_free (zone=0xc1061780, slab=0xc2b90f70, item=0xc2b90948) at ../../../vm/uma_dbg.c:302 #13 0xc06100f3 in uma_zfree_arg (zone=0xc1061780, item=0xc2b90948, udata=0x0) at ../../../vm/uma_core.c:2261 #14 0xc04f207b in g_destroy_bio (bp=0xc2b90948) at uma.h:305 #15 0xc04f090a in g_disk_done (bp=0xc2b90948) at ../../../geom/geom_disk.c:209 #16 0xc05736e0 in biodone (bp=0xc2b90948) at ../../../kern/vfs_bio.c:3006 #17 0xc045f8c2 in ad_done (request=0xc2b7b480) at ../../../dev/ata/ata-disk.c:304 #18 0xc0464f50 in ata_completed (context=0xc2b7b480, dummy=0) at ../../../dev/ata/ata-queue.c:479 #19 0xc054bd0c in taskqueue_run (queue=0xc2a0a080) at ../../../kern/subr_taskqueue.c:255 #20 0xc054bea2 in taskqueue_swi_run (dummy=0x0) at ../../../kern/subr_taskqueue.c:297 #21 0xc0510f19 in ithread_execute_handlers (p=0xc299e240, ie=0xc2a0a000) at ../../../kern/kern_intr.c:682 #22 0xc0511047 in ithread_loop (arg=0xc2a12010) at ../../../kern/kern_intr.c:766 #23 0xc0510018 in fork_exit (callout=0xc0510fe0 <ithread_loop>, arg=0xc2a12010, frame=0xdceb0d38) at ../../../kern/kern_fork.c:814 #24 0xc0643210 in fork_trampoline () at ../../../i386/i386/exception.s:205 ----- dmesg ----- Copyright (c) 1992-2007 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 7.0-CURRENT #0: Sun Apr 22 11:05:32 CEST 2007 roberto_at_vm1.keltia.net:/usr/osrc/sys/i386/compile/VM7 Timecounter "i8254" frequency 1193182 Hz quality 0 CPU: Intel(R) Core(TM)2 CPU T7600 _at_ 2.33GHz (1524.50-MHz 686-class CPU) Origin = "GenuineIntel" Id = 0x6f6 Stepping = 6 Features=0xf80b9b9<FPU,PSE,TSC,MSR,MCE,CX8,SEP,MTRR,PGE,CMOV,MMX,FXSR,SSE,SSE2,SS> Features2=0x1<SSE3> real memory = 536870912 (512 MB) avail memory = 515600384 (491 MB) kbd1 at kbdmux0 cpu0 on motherboard pcib0: <Intel 82815 (i815 GMCH) Host To Hub bridge> pcibus 0 on motherboard pir0: <PCI Interrupt Routing Table: 9 Entries> on motherboard pci0: <PCI bus> on pcib0 vgapci0: <VGA-compatible display> port 0x4000-0x40ff,0x4400-0x441f mem 0xc0000000-0xc0ffffff at device 2.0 on pci0 pci0: <bridge> at device 3.0 (no driver attached) ed0: <RealTek 8029> port 0x4c00-0x4c1f irq 10 at device 5.0 on pci0 ed0: [ITHREAD] ed0: using obsoleted if_watchdog interface ed0: Ethernet address: 00:ee:42:8a:ed:eb uhci0: <Intel 82801FB/FR/FW/FRW (ICH6) USB controller USB-A> port 0x5000-0x501f irq 11 at device 29.0 on pci0 uhci0: [GIANT-LOCKED] uhci0: [ITHREAD] usb0: <Intel 82801FB/FR/FW/FRW (ICH6) USB controller USB-A> on uhci0 usb0: USB revision 1.0 uhub0: <Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1> on usb0 uhub0: 2 ports with 2 removable, self powered ehci0: <Intel 82801FB (ICH6) USB 2.0 controller> mem 0xc1000000-0xc10003ff irq 9 at device 29.7 on pci0 ehci0: [GIANT-LOCKED] ehci0: [ITHREAD] usb1: EHCI version 1.0 usb1: wrong number of companions (0 != 1) usb1: <Intel 82801FB (ICH6) USB 2.0 controller> on ehci0 usb1: USB revision 2.0 uhub1: <Intel EHCI root hub, class 9/0, rev 2.00/1.00, addr 1> on usb1 uhub1: 8 ports with 8 removable, self powered agp0: <Intel 82815 (i815 GMCH) host to PCI bridge> on hostb0 isab0: <PCI-ISA bridge> at device 31.0 on pci0 isa0: <ISA bus> on isab0 atapci0: <Intel ICH2 UDMA100 controller> port 0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0x6c00-0x6c0f at device 31.1 on pci0 ata0: <ATA channel 0> on atapci0 ata0: [ITHREAD] ata1: <ATA channel 1> on atapci0 ata1: [ITHREAD] pci0: <multimedia, audio> at device 31.5 (no driver attached) pmtimer0 on isa0 orm0: <ISA Option ROM> at iomem 0xc0000-0xc9fff pnpid ORM0000 on isa0 sc0: <System console> at flags 0x100 on isa0 sc0: VGA <16 virtual consoles, flags=0x300> vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0 atkbdc0: <Keyboard controller (i8042)> at port 0x60,0x64 on isa0 atkbd0: <AT Keyboard> irq 1 on atkbdc0 kbd0 at atkbd0 atkbd0: [GIANT-LOCKED] atkbd0: [ITHREAD] psm0: <PS/2 Mouse> irq 12 on atkbdc0 psm0: [GIANT-LOCKED] psm0: [ITHREAD] psm0: model IntelliMouse Explorer, device ID 4 sio0: configured irq 4 not in bitmap of probed irqs 0 sio0: port may not be enabled sio0: configured irq 4 not in bitmap of probed irqs 0 sio0: port may not be enabled sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0 sio0: type 8250 or not responding sio0: [FILTER] sio1: configured irq 3 not in bitmap of probed irqs 0 sio1: port may not be enabled Timecounter "TSC" frequency 1524502532 Hz quality 800 Timecounters tick every 1.000 msec ad0: 32000MB <Virtual HDD [0] FWR10003> at ata0-master UDMA100 acd0: CDROM <PRL CD-ROM [1]/FWR10003> at ata0-slave PIO4 ad2: 10000MB <Virtual HDD [2] FWR10003> at ata1-master UDMA100 WARNING: ZFS is considered to be an experimental feature in FreeBSD. Trying to mount root from ufs:/dev/ad0s1a ZFS filesystem version 6 ZFS storage pool version 6 ----- VM7 ----- # # VM7 -- Generic kernel configuration file for FreeBSD/i386 # # $FreeBSD: src/sys/i386/conf/GENERIC,v 1.460 2006/12/13 03:41:47 yongari Exp $ cpu I686_CPU ident VM7 makeoptions DEBUG=-g # Build kernel with gdb(1) debug symbols options SCHED_4BSD # 4BSD scheduler options PREEMPTION # Enable kernel thread preemption options INET # InterNETworking options INET6 # IPv6 communications protocols options FFS # Berkeley Fast Filesystem options SOFTUPDATES # Enable FFS soft updates support options UFS_ACL # Support for access control lists options UFS_DIRHASH # Improve performance on big directories options COMPAT_43TTY # BSD 4.3 TTY compat [KEEP THIS!] options COMPAT_FREEBSD4 # Compatible with FreeBSD4 options COMPAT_FREEBSD5 # Compatible with FreeBSD5 options COMPAT_FREEBSD6 # Compatible with FreeBSD6 options KTRACE # ktrace(1) support options _KPOSIX_PRIORITY_SCHEDULING # POSIX P1003_1B real-time extensions options KBD_INSTALL_CDEV # install a CDEV entry in /dev options ADAPTIVE_GIANT # Giant mutex is adaptive. options STOP_NMI # Stop CPUS using NMI instead of IPI # Debugging for use in -current options KDB # Enable kernel debugger support. options DDB # Support DDB. options INVARIANTS # Enable calls of extra sanity checking options INVARIANT_SUPPORT # Extra sanity checks of internal structures, required by INVARIANTS # To make an SMP kernel, the next two lines are needed options SMP # Symmetric MultiProcessor Kernel device apic # I/O APIC # Bus support. device pci # Floppy drives device fdc # ATA and ATAPI devices device ata device atadisk # ATA disk drives device ataraid # ATA RAID drives device atapicd # ATAPI CDROM drives options ATA_STATIC_ID # Static device numbering # SCSI peripherals device scbus # SCSI bus (required for SCSI) device da # Direct Access (disks) device cd # CD device pass # Passthrough device (direct SCSI access) # atkbdc0 controls both the keyboard and the PS/2 mouse device atkbdc # AT keyboard controller device atkbd # AT keyboard device psm # PS/2 mouse device kbdmux # keyboard multiplexer device vga # VGA video card driver device splash # Splash screen and screen saver support # syscons is the default console driver, resembling an SCO console device sc device agp # support several AGP chipsets # Power management support (see NOTES for more options) #device apm # Add suspend/resume support for the i8254. device pmtimer # Serial (COM) ports device sio # 8250, 16[45]50 based serial ports device uart # Generic UART driver # PCI Ethernet NICs. device de # DEC/Intel DC21x4x (``Tulip'') device em # Intel PRO/1000 adapter Gigabit Ethernet Card device ixgb # Intel PRO/10GbE Ethernet Card device le # AMD Am7900 LANCE and Am79C9xx PCnet device txp # 3Com 3cR990 (``Typhoon'') device vx # 3Com 3c590, 3c595 (``Vortex'') # PCI Ethernet NICs that use the common MII bus controller code. # NOTE: Be sure to keep the 'device miibus' line in order to use these NICs! device miibus # MII bus support device ed # NE[12]000, SMC Ultra, 3c503, DS8390 cards device loop # Network loopback device random # Entropy device device ether # Ethernet support device tun # Packet tunnel. device pty # Pseudo-ttys (telnet etc) # The `bpf' device enables the Berkeley Packet Filter. # Be aware of the administrative consequences of enabling this! # Note that 'bpf' is required for DHCP. device bpf # Berkeley packet filter # USB support device uhci # UHCI PCI->USB interface device ohci # OHCI PCI->USB interface device ehci # EHCI PCI->USB interface (USB 2.0) device usb # USB Bus (required) device ugen # Generic device ukbd # Keyboard device umass # Disks/Mass storage - Requires scbus and da device ums # Mouse # FireWire support device firewire # FireWire bus code device sbp # SCSI over FireWire (Requires scbus and da) device fwe # Ethernet over FireWire (non-standard!) ----- -- Ollivier ROBERT -=- FreeBSD: The Power to Serve! -=- roberto_at_keltia.freenix.fr Darwin sidhe.keltia.net Kernel Version 8.8.2: Thu Sep 28 20:43:26 PDT 2006 i386Received on Sun Apr 22 2007 - 08:28:39 UTC
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