Date: Wed, 29 Nov 2000 18:07:40 +1100 From: "Chris Knight" <chris@aims.com.au> To: <freebsd-current@freebsd.org> Subject: FFS Snapshot issues Message-ID: <012f01c059d3$104ae850$020aa8c0@aims.private>
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[-- Attachment #1 --] Howdy, Get the attached panic repeatedly when doing an rm -rf /usr/ports and trying to create a snapshot of the root partition. Sometimes I get the panic when there's no apparent disk activity and trying to create a snapshot on >2GB filesystems. I've included gdb output, dmesg and my kernel config. Hopefully, some-one can make more sense of it in a shorter timeframe than me. If any further information is required, please let me know and I'll try my best to get it to you. BTW, is there any reason I had to enter panic twice in ddb to get the sucker to dump core? Regards, Chris Knight Systems Administrator AIMS Independent Computer Professionals Tel: +61 3 6334 6664 Fax: +61 3 6331 7032 Mob: +61 419 528 795 Web: http://www.aims.com.au [-- Attachment #2 --] ait0fd02# gdb -k kernel.0 vmcore.1 GNU gdb 4.18 Copyright 1998 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-unknown-freebsd"... IdlePTD 3362816 initial pcb at 2a7fe0 panicstr: from debugger panic messages: --- Fatal trap 12: page fault while in kernel mode fault virtual address = 0x0 fault code = supervisor read, page not present instruction pointer = 0x8:0xc0170fd8 stack pointer = 0x10:0xc3b38f14 frame pointer = 0x10:0xc3b38f24 code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, def32 1, gran 1 processor eflags = resume, IOPL = 0 current process = 5 (syncer) panic: from debugger panic: from debugger Uptime: 6m21s dumping to dev #ad/0x20001, offset 344064 dump ata0: resetting devices .. done 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 --- #0 dumpsys () at ../../kern/kern_shutdown.c:477 477 if (dumping++) { (kgdb) back #0 dumpsys () at ../../kern/kern_shutdown.c:477 #1 0xc0175247 in boot (howto=260) at ../../kern/kern_shutdown.c:320 #2 0xc0175685 in panic (fmt=0xc022d5d4 "from debugger") at ../../kern/kern_shutdown.c:568 #3 0xc011c2b5 in db_panic (addr=-1072230440, have_addr=0, count=-1, modif=0xc3b38d88 "") at ../../ddb/db_command.c:433 #4 0xc011c255 in db_command (last_cmdp=0xc025be40, cmd_table=0xc025bca0, aux_cmd_tablep=0xc029f92c) at ../../ddb/db_command.c:333 #5 0xc011c31a in db_command_loop () at ../../ddb/db_command.c:455 #6 0xc011e4c3 in db_trap (type=12, code=0) at ../../ddb/db_trap.c:71 #7 0xc02088d2 in kdb_trap (type=12, code=0, regs=0xc3b38ed4) at ../../i386/i386/db_interface.c:163 #8 0xc0214d54 in trap_fatal (frame=0xc3b38ed4, eva=0) at ../../i386/i386/trap.c:936 #9 0xc0214add in trap_pfault (frame=0xc3b38ed4, usermode=0, eva=0) at ../../i386/i386/trap.c:855 #10 0xc0214557 in trap (frame={tf_fs = 16, tf_es = 16, tf_ds = 16, tf_edi = 0, tf_esi = -1070810528, tf_ebp = -1011642588, tf_isp = -1011642624, tf_ebx = 0, tf_edx = 1, tf_ecx = -1064877056, tf_eax = 8, tf_trapno = 12, tf_err = 0, tf_eip = -1072230440, tf_cs = 8, tf_eflags = 65670, tf_esp = -1070810528, tf_ss = 8}) at ../../i386/i386/trap.c:438 #11 0xc0170fd8 in mtx_exit_hard (m=0xc02cba60, type=0) at ../../kern/kern_mutex.c:402 ---Type <return> to continue, or q <return> to quit--- #12 0xc01a9cab in sync_fsync (ap=0xc3b38f7c) at ../../sys/mutex.h:603 #13 0xc01a7c0e in sched_sync () at vnode_if.h:508 (kgdb) quit ait0fd02# dmesg Copyright (c) 1992-2000 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 5.0-20001129-SNAP #0: Wed Nov 29 15:12:51 EST 2000 root@ait0fd02.aims.private:/usr/src/sys/compile/DEBUG Timecounter "i8254" frequency 1193168 Hz Timecounter "TSC" frequency 199430220 Hz CPU: Pentium/P55C (199.43-MHz 586-class CPU) Origin = "GenuineIntel" Id = 0x543 Stepping = 3 Features=0x8001bf<FPU,VME,DE,PSE,TSC,MSR,MCE,CX8,MMX> real memory = 33554432 (32768K bytes) config> di pcic0 config> di pcm0 config> di sn0 config> di lnc0 config> di le0 config> di ie0 config> di fe0 config> di ed0 config> di cs0 config> di bt0 config> di aic0 config> di aha0 config> di adv0 config> q avail memory = 29642752 (28948K bytes) Preloaded elf kernel "kernel" at 0xc0323000. Preloaded userconfig_script "/boot/kernel.conf" at 0xc032309c. Intel Pentium detected, installing workaround for F00F bug seq0-15: Midi sequencers. VESA: v1.2, 1024k memory, flags:0x0, mode table:0xc00c4c13 (c0004c13) VESA: S3 Incorporated. Trio64V+ npx0: <math processor> on motherboard npx0: INT 16 interface pcib0: <Host to PCI bridge> at pcibus 0 on motherboard pci0: <PCI bus> on pcib0 isab0: <Intel 82371SB PCI to ISA bridge> at device 7.0 on pci0 isa0: <ISA bus> on isab0 atapci0: <Intel PIIX3 ATA controller> port 0xf000-0xf00f at device 7.1 on pci0 ata0: at 0x1f0 irq 14 on atapci0 ata1: at 0x170 irq 15 on atapci0 pci0: <S3 Trio graphics accelerator> at 11.0 irq 10 ed0: <NE2000 PCI Ethernet (RealTek 8029)> port 0x6100-0x611f irq 11 at device 17.0 on pci0 ed0: address 00:80:c8:de:db:51, type NE2000 (16 bit) atkbdc0: <Keyboard controller (i8042)> at port 0x60,0x64 on isa0 atkbd0: <AT Keyboard> flags 0x1 irq 1 on atkbdc0 kbd0 at atkbd0 psm0: <PS/2 Mouse> irq 12 on atkbdc0 psm0: model Generic PS/2 mouse, device ID 0 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 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 16/16/8 bytes threshold lpt0: <Printer> on ppbus0 lpt0: Interrupt-driven port ppi0: <Parallel I/O> on ppbus0 pps0: <Pulse per second Timing Interface> on ppbus0 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 vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0 unknown: <PNP0303> can't assign resources atspeaker0: <AT speaker> at port 0x61 on isa0 unknown: <PNP0f13> can't assign resources unknown: <PNP0501> can't assign resources unknown: <PNP0501> can't assign resources unknown: <PNP0700> can't assign resources unknown: <PNP0401> can't assign resources pcm1: <CS423x> at port 0x534-0x537,0x388-0x38b,0x220-0x22f irq 5 drq 1,0 on isa0 joy0: <Generic PnP Joystick> at port 0x200-0x207 on isa0 ata1-slave: ata_command: timeout waiting for intr ata1-slave: identify failed ad0: 6187MB <FUJITSU MPD3064AT> [13410/15/63] at ata0-master WDMA2 ast0: TAPE <Seagate STT8000A> at ata1-master using PIO4 Mounting root from ufs:/dev/ad0s1a WARNING: / was not properly dismounted ait0fd02# cat /usr/src/sys/i386/conf/DEBUG machine i386 ident DEBUG maxusers 32 makeoptions CONF_CFLAGS=-fno-builtin #Don't allow use of memcmp, etc. makeoptions DEBUG=-g #Build kernel with gdb(1) debug symbols options MAXDSIZ="(256*1024*1024)" options DFLDSIZ="(256*1024*1024)" options PQ_CACHESIZE=256 # color for 512k/16k cache options INCLUDE_CONFIG_FILE # Include this file in kernel cpu I586_CPU # aka Pentium(tm) cpu I686_CPU # aka Pentium Pro(tm) options COMPAT_43 options USER_LDT #allow user-level control of i386 ldt options SYSVSHM options SYSVSEM options SYSVMSG options DDB options KTRACE #kernel tracing options PERFMON options USERCONFIG #boot -c editor options VISUAL_USERCONFIG #visual boot -c editor options INET #Internet communications protocols device ether #Generic Ethernet device loop 1 #Network loopback device device bpf #Berkeley packet filter options FFS #Fast filesystem options FFS_ROOT #FFS usable as root device options SOFTUPDATES device random options NOBLOCKRANDOM options P1003_1B options _KPOSIX_PRIORITY_SCHEDULING options _KPOSIX_VERSION=199309L options HZ=100 options CLK_USE_I8254_CALIBRATION device pty #Pseudo ttys device speaker #Play IBM BASIC-style noises out your speaker device gzip #Exec gzipped a.out's device isa options COMPAT_OLDISA #Use ISA shims and glue for old drivers options AUTO_EOI_1 device pci options COMPAT_OLDPCI #Use PCI shims and glue for old drivers device atkbdc 1 device atkbd options KBD_INSTALL_CDEV # install a CDEV entry in /dev device psm device vga options VESA device splash device sc 1 device npx device ata device atadisk # ATA disk drives device atapicd # ATAPI CDROM drives device atapifd # ATAPI floppy drives device atapist # ATAPI tape drives device fdc device sio device ed device pcm device midi device seq device joy # PnP aware, hints for nonpnp only device ppc device ppbus device lpt device ppi device pps options SEMMAP=31 options SEMMNI=11 options SEMMNS=61 options SEMMNU=31 options SEMMSL=61 options SEMOPM=101 options SEMUME=11 options SHMALL=1025 options SHMMAX="(SHMMAXPGS*PAGE_SIZE+1)" options SHMMAXPGS=1025 options SHMMIN=2 options SHMMNI=33 options SHMSEG=9 ait0fd02# exithelp
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