Date: Mon, 16 Sep 2002 12:19:17 -0400 (EDT) From: Brad Laue <brad@brad-x.com> To: FreeBSD-gnats-submit@FreeBSD.org Subject: kern/42847: panic: backgroundwritedone: lost buffer Message-ID: <20020916161917.0EE6422104A@TMA-1.brad-x.com>
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>Number: 42847 >Category: kern >Synopsis: panic: backgroundwritedone: lost buffer >Confidential: no >Severity: serious >Priority: high >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Mon Sep 16 10:20:05 PDT 2002 >Closed-Date: >Last-Modified: >Originator: Brad Laue >Release: FreeBSD 4.6-STABLE i386 >Organization: brad-x.com >Environment: System: FreeBSD TMA-1.brad-x.com 4.6-STABLE FreeBSD 4.6-STABLE #0: Mon Aug 5 16:15:45 EDT 2002 root@TMA-1.brad-x.com:/usr/src/sys/compile/DISCOVERY-IPF i386 Copyright (c) 1992-2002 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 4.6-STABLE #0: Mon Aug 5 16:15:45 EDT 2002 root@TMA-1.brad-x.com:/usr/src/sys/compile/DISCOVERY-IPF Timecounter "i8254" frequency 1193182 Hz Timecounter "TSC" frequency 501138847 Hz CPU: AMD-K6(tm) 3D processor (501.14-MHz 586-class CPU) Origin = "AuthenticAMD" Id = 0x58c Stepping = 12 Features=0x8021bf<FPU,VME,DE,PSE,TSC,MSR,MCE,CX8,PGE,MMX> AMD Features=0x80000800<SYSCALL,3DNow!> real memory = 402653184 (393216K bytes) avail memory = 387641344 (378556K bytes) Preloaded elf kernel "kernel" at 0xc0310000. VESA: v2.0, 4096k memory, flags:0x4, mode table:0xc00c31f4 (c00031f4) VESA: SiS K6-family MTRR support enabled (2 registers) Using $PIR table, 6 entries at 0xc00fdc70 npx0: <math processor> on motherboard npx0: INT 16 interface pcib0: <AcerLabs M1541 (Aladdin-V) PCI host bridge> on motherboard pci0: <PCI bus> on pcib0 pcib1: <AcerLabs M5243 PCI-PCI bridge> at device 1.0 on pci0 pci1: <PCI bus> on pcib1 pci1: <SiS 6326 SVGA controller> at 0.0 pci0: <AcerLabs M5237 (Aladdin-V) USB controller> at 2.0 irq 12 isab0: <AcerLabs M1533 portable PCI-ISA bridge> at device 7.0 on pci0 isa0: <ISA bus> on isab0 ed0: <NE2000 PCI Ethernet (RealTek 8029)> port 0xf000-0xf01f irq 11 at device 11.0 on pci0 ed0: address 00:4f:49:0a:e8:ea, type NE2000 (16 bit) rl0: <D-Link DFE-530TX+ 10/100BaseTX> port 0xf400-0xf4ff mem 0xd3801000-0xd38010ff irq 10 at device 12.0 on pci0 rl0: Ethernet address: 00:50:ba:4a:52:74 miibus0: <MII bus> on rl0 rlphy0: <RealTek internal media interface> on miibus0 rlphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto atapci0: <AcerLabs Aladdin ATA66 controller> port 0xf800-0xf80f at device 15.0 on pci0 ata0: at 0x1f0 irq 14 on atapci0 ata1: at 0x170 irq 15 on atapci0 orm0: <Option ROM> at iomem 0xc0000-0xc7fff on isa0 fdc0: <NEC 72065B or clone> at port 0x3f0-0x3f5,0x3f7 irq 6 drq 2 on isa0 fdc0: FIFO enabled, 8 bytes threshold fd0: <1440-KB 3.5" drive> on fdc0 drive 0 atkbdc0: <Keyboard controller (i8042)> at port 0x60,0x64 on isa0 atkbd0: <AT Keyboard> flags 0x1 irq 1 on atkbdc0 vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0 sc0: <System console> at flags 0x100 on isa0 sc0: VGA <16 virtual consoles, flags=0x300> sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0 sio0: type 16550A sio1 at port 0x2f8-0x2ff irq 3 on isa0 sio1: type 16550A ppc0: <Parallel port> at port 0x378-0x37f irq 7 on isa0 ppc0: SMC-like chipset (ECP/EPP/PS2/NIBBLE) in COMPATIBLE mode ppc0: FIFO with 16/16/1 bytes threshold plip0: <PLIP network interface> on ppbus0 lpt0: <Printer> on ppbus0 lpt0: Interrupt-driven port DUMMYNET initialized (011031) IP packet filtering initialized, divert enabled, rule-based forwarding enabled, default to accept, logging disabled IP Filter: v3.4.27 initialized. Default = pass all, Logging = enabled ad0: 76319MB <WDC WD800BB-32CCB0> [155061/16/63] at ata0-master UDMA66 acd0: CDROM <CD-ROM CDU311-Q> at ata1-master PIO3 Mounting root from ufs:/dev/ad0s1a machine i386 cpu I586_CPU ident DISCOVERY-IPF maxusers 0 options NMBCLUSTERS=16384 options IPFILTER options IPFILTER_LOG #options MATH_EMULATE #Support for x87 emulation options INET #InterNETworking options FFS #Berkeley Fast Filesystem options FFS_ROOT #FFS usable as root device [keep this!] options SOFTUPDATES #Enable FFS soft updates support options UFS_DIRHASH options NFS #Network Filesystem options COMPAT_43 #Compatible with BSD 4.3 [KEEP THIS!] options UCONSOLE #Allow users to grab the console options USERCONFIG #boot -c editor options VISUAL_USERCONFIG #visual boot -c editor options KTRACE #ktrace(1) support options SYSVSHM #SYSV-style shared memory options SYSVMSG #SYSV-style message queues options SYSVSEM #SYSV-style semaphores options P1003_1B #Posix P1003_1B real-time extensions options _KPOSIX_PRIORITY_SCHEDULING # To make an SMP kernel, the next two are needed #options SMP # Symmetric MultiProcessor Kernel #options APIC_IO # Symmetric (APIC) I/O device isa device pci # Floppy drives device fdc0 at isa? port IO_FD1 irq 6 drq 2 device fd0 at fdc0 drive 0 #device fd1 at fdc0 drive 1 # ATA and ATAPI devices #device ata0 at isa? port IO_WD1 irq 14 #device ata1 at isa? port IO_WD2 irq 15 device ata device atadisk # ATA disk drives device atapicd # ATAPI CDROM drives #device atapifd # ATAPI floppy drives #device atapist # ATAPI tape drives options ATA_STATIC_ID #Static device numbering # atkbdc0 controls both the keyboard and the PS/2 mouse device atkbdc0 at isa? port IO_KBD device atkbd0 at atkbdc? irq 1 flags 0x1 device psm0 at atkbdc? irq 12 device vga0 at isa? # splash screen/screen saver pseudo-device splash pseudo-device snp 3 # syscons is the default console driver, resembling an SCO console device sc0 at isa? flags 0x100 # Floating point support - do not disable. device npx0 at nexus? port IO_NPX irq 13 # Serial (COM) ports device sio0 at isa? port IO_COM1 flags 0x10 irq 4 device sio1 at isa? port IO_COM2 irq 3 # Parallel port device ppc0 at isa? irq 7 device ppbus # Parallel port bus (required) device lpt # Printer device plip # TCP/IP over parallel #device ppi # Parallel port interface device #device vpo # Requires scbus and da # PCI Ethernet NICs that use the common MII bus controller code. device miibus # MII bus support device rl # RealTek 8129/8139 # ISA Ethernet NICs. device ed0 at isa? port 0x280 irq 10 iomem 0xd8000 # Pseudo devices - the number indicates how many units to allocated. pseudo-device loop # Network loopback pseudo-device ether # Ethernet support #pseudo-device sl 1 # Kernel SLIP #pseudo-device ppp 1 # Kernel PPP pseudo-device tun # Packet tunnel. pseudo-device pty # Pseudo-ttys (telnet etc) # pseudo-device md # Memory "disks" pseudo-device gif 4 # IPv6 and IPv4 tunneling #pseudo-device faith 1 # IPv6-to-IPv4 relaying (translation) # The `bpf' pseudo-device enables the Berkeley Packet Filter. # Be aware of the administrative consequences of enabling this! pseudo-device bpf #Berkeley packet filter #device sbc0 at isa? port 0x220 irq 9 drq 0 flags 0x15 #device pcm options QUOTA options VESA # PPPoE options NETGRAPH options NETGRAPH_ETHER options NETGRAPH_PPPOE options NETGRAPH_SOCKET options IPFIREWALL options IPDIVERT options IPFIREWALL_DEFAULT_TO_ACCEPT options DUMMYNET options NTIMECOUNTER=20 options HZ=1000 options SC_HISTORY_SIZE=2048 >Description: System crashed after 21 days up within hours of having copied a large (200MB) file over NFS from a Linux system on a 100baseT switched network. The crash occured while another system was copying several small files to the same NFS share. I can obtain debugging information from the system when it recurs (third time since 4.4-STABLE), but will require personal correspondence on how to set up the environment for that. >How-To-Repeat: Difficult to repeat - randomly occurs when the filesystem is actively being written to. >Fix: Not yet known. >Release-Note: >Audit-Trail: >Unformatted: To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message
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