Date: Sun, 9 Feb 2003 18:24:37 +0100 From: Gerrit =?iso-8859-1?Q?K=FChn?= <gerrit@pmp.uni-hannover.de> To: Andre Guibert de Bruet <andy@siliconlandmark.com> Cc: Vallo Kallaste <kalts@estpak.ee>, Attila Nagy <bra@fsn.hu>, current@FreeBSD.ORG Subject: Re: Does bg fsck have problems with large filesystems? Message-ID: <20030209172437.GA59271@pmp.uni-hannover.de> In-Reply-To: <20030128173142.GF78630@pmp.uni-hannover.de> References: <20030127174127.GD71664@pmp.uni-hannover.de> <Pine.LNX.4.50.0301281141100.28577-100000@scribble.fsn.hu> <20030128125432.GB4813@tiiu.internal> <20030128110546.L66869@alpha.siliconlandmark.com> <20030128173142.GF78630@pmp.uni-hannover.de>
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On Tue, Jan 28, 2003 at 06:31:42PM +0100, Gerrit Kühn wrote:
> > I've been trying to reproduce this bug on my desktop. This machine has 2
> > 80gb disks, one of which is dedicated with one slice. So far, after 8 hard
> > resets, I haven't had any problem with either the machine or bgfsck
> > hanging.
> I'll try to reproduce the thing on my machine as soon as possible.
> Perhaps it was just because it was Monday, who knows...
Meanwhile I found out that my problem is 100% reproducible.
My file systems look like this:
Filesystem 1K-blocks Used Avail Capacity Mounted on
/dev/ad0s1a 257838 67338 169874 28% /
devfs 1 1 0 100% /dev
/dev/ad0s1g 57467672 2 52870258 0% /export
/dev/ad0s1f 4125838 4 3795768 0% /tmp
/dev/ad0s1e 12383502 1336152 10056670 12% /usr
/dev/ad0s1d 4125838 3458 3792314 0% /var
When booting with non-clean filesystems, bgfsck runs quickly over a,
d, e and f. However, on g it keeps running forever. I can't kill the
fsck processes and I can't access g, though the rest of the system
seems to be usable as usual. Here is the output of ps axl:
UID PID PPID CPU PRI NI VSZ RSS MWCHAN STAT TT TIME COMMAND
0 0 0 0 -16 0 0 12 sched DLs ?? 0:00.00 (swapper)
0 1 0 0 8 0 712 392 wait ILs ?? 0:00.01 /sbin/init -
0 2 0 0 -8 0 0 12 g_even DL ?? 0:00.02 (g_event)
0 3 0 0 -8 0 0 12 g_up DL ?? 0:00.09 (g_up)
0 4 0 0 -8 0 0 12 g_down DL ?? 0:00.19 (g_down)
0 5 0 0 -84 0 0 12 actask IL ?? 0:00.00 (acpi_task0
0 6 0 0 -84 0 0 12 actask IL ?? 0:00.00 (acpi_task1
0 7 0 0 -84 0 0 12 actask IL ?? 0:00.00 (acpi_task2
0 8 0 0 -16 0 0 12 psleep DL ?? 0:00.00 (pagedaemon
0 9 0 0 20 0 0 12 psleep DL ?? 0:00.00 (vmdaemon)
0 10 0 0 -16 0 0 12 ktrace DL ?? 0:00.00 (ktrace)
0 11 0 110 -16 0 0 12 - RL ?? 2:20.07 (idle)
0 12 0 0 -48 0 0 12 - WL ?? 0:00.12 (swi6: tty:
0 14 0 0 -44 0 0 12 - WL ?? 0:00.00 (swi1: net)
0 15 0 0 76 0 0 12 sleep DL ?? 0:00.05 (random)
0 19 0 0 -28 0 0 12 - WL ?? 0:00.00 (swi5: acpi
0 22 0 0 -64 0 0 12 - WL ?? 0:00.28 (irq14: ata
0 24 0 0 -68 0 0 12 - WL ?? 0:00.00 (irq11: rl0
0 25 0 0 8 0 0 12 usbevt DL ?? 0:00.00 (usb0)
0 26 0 0 8 0 0 12 usbtsk DL ?? 0:00.00 (usbtask)
0 27 0 0 8 0 0 12 usbevt DL ?? 0:00.00 (usb1)
0 28 0 5 -68 0 0 12 - WL ?? 0:00.00 (irq12: fwo
0 29 0 0 -64 0 0 12 - WL ?? 0:00.00 (irq6: fdc0
0 32 0 0 -60 0 0 12 - WL ?? 0:00.00 (irq7: ppc0
0 33 0 0 -60 0 0 12 - WL ?? 0:00.02 (irq1: atkb
0 36 0 34 171 0 0 12 pgzero DL ?? 0:00.47 (pagezero)
0 37 0 2 -4 0 0 12 snaplk DL ?? 0:00.24 (bufdaemon)
0 38 0 0 20 0 0 12 syncer DL ?? 0:00.01 (syncer)
0 39 0 0 -4 0 0 12 vlruwt DL ?? 0:00.00 (vnlru)
0 40 0 0 8 0 0 12 nfsidl IL ?? 0:00.00 (nfsiod 0)
0 41 0 0 8 0 0 12 nfsidl IL ?? 0:00.00 (nfsiod 1)
0 42 0 0 8 0 0 12 nfsidl IL ?? 0:00.00 (nfsiod 2)
0 43 0 0 8 0 0 12 nfsidl IL ?? 0:00.00 (nfsiod 3)
0 246 1 0 96 0 1172 736 select Ss ?? 0:00.03 /usr/sbin/sy
0 267 1 0 96 0 1372 1016 select Ss ?? 0:00.03 /usr/sbin/rp
0 350 1 155 115 0 1220 992 select Is ?? 0:00.01 /usr/sbin/mo
0 353 1 112 110 0 1168 876 select Is ?? 0:00.13 nfsd: master
0 355 353 155 4 0 1128 748 nfsd I ?? 0:00.00 nfsd: server
0 356 353 155 4 0 1128 748 nfsd I ?? 0:00.00 nfsd: server
0 357 353 155 4 0 1128 748 nfsd I ?? 0:00.00 nfsd: server
0 358 353 155 4 0 1128 748 nfsd I ?? 0:00.00 nfsd: server
0 374 1 0 96 0 1144 680 select Ss ?? 0:00.00 /usr/sbin/us
0 394 1 154 115 0 1196 808 select Is ?? 0:00.01 /usr/sbin/lp
0 454 1 153 115 0 3092 2200 select Is ?? 0:00.63 /usr/sbin/ss
0 460 1 0 96 0 3092 2544 select Ss ?? 0:00.01 sendmail: ac
25 463 1 153 20 0 2992 2500 pause Is ?? 0:00.00 sendmail: Qu
0 512 1 0 8 0 1236 956 nanslp Ss ?? 0:00.01 /usr/sbin/cr
0 522 1 0 8 0 1532 1236 wait Is v0 0:00.05 login [pam]
0 530 522 0 20 0 1504 1092 pause S v0 0:00.06 -csh (csh)
0 544 530 0 96 0 664 444 - R+ v0 0:00.00 ps axl
0 523 1 0 5 0 1184 864 ttyin Is+ v1 0:00.01 /usr/libexec
0 524 1 0 5 0 1184 864 ttyin Is+ v2 0:00.01 /usr/libexec
0 525 1 0 5 0 1184 864 ttyin Is+ v3 0:00.01 /usr/libexec
0 526 1 0 5 0 1184 864 ttyin Is+ v4 0:00.01 /usr/libexec
0 527 1 0 5 0 1184 864 ttyin Is+ v5 0:00.01 /usr/libexec
0 528 1 0 5 0 1184 864 ttyin Is+ v6 0:00.01 /usr/libexec
0 529 1 0 5 0 1184 864 ttyin Is+ v7 0:00.01 /usr/libexec
0 516 1 153 8 4 248 140 wait IN con- 0:00.01 fsck -B -p
0 517 1 153 -8 0 1112 564 piperd I con- 0:00.00 logger -p da
0 521 516 2 -8 4 632 376 getbuf DN con- 0:01.19 fsck_ufs -p
After turning off bgfsck in rc.conf the system rebooted using fgfsck
without further problems. Here is the dmesg from this booting:
Copyright (c) 1992-2003 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-RELEASE #1: Mon Jan 27 17:43:54 CET 2003
root@comet.pmp.uni-hannover.de:/usr/obj/usr/src/sys/COMET
Preloaded elf kernel "/boot/kernel/kernel" at 0xc0503000.
Preloaded elf module "/boot/kernel/acpi.ko" at 0xc05030a8.
Timecounter "i8254" frequency 1193182 Hz
Timecounter "TSC" frequency 930689508 Hz
CPU: VIA C3 Samuel 2 (930.69-MHz 686-class CPU)
Origin = "CentaurHauls" Id = 0x67a Stepping = 10
Features=0x803035<FPU,DE,TSC,MSR,MTRR,PGE,MMX>
real memory = 125763584 (119 MB)
avail memory = 116744192 (111 MB)
Initializing GEOMetry subsystem
npx0: <math processor> on motherboard
npx0: INT 16 interface
acpi0: <VIA603 AWRDACPI> on motherboard
ACPI-0625: *** Info: GPE Block0 defined as GPE0 to GPE15
Using $PIR table, 6 entries at 0xc00fdcf0
acpi0: power button is handled as a fixed feature programming model.
Timecounter "ACPI-safe" frequency 3579545 Hz
acpi_timer0: <24-bit timer at 3.579545MHz> port 0x4008-0x400b on acpi0
acpi_cpu0: <CPU> on acpi0
acpi_button0: <Power Button> on acpi0
acpi_button1: <Sleep Button> on acpi0
pcib0: <ACPI Host-PCI bridge> port 0x6000-0x607f,0x5000-0x500f,0x4080-0x40ff,0x4000-0x407f,0xcf8-0xcff on acpi0
pci0: <ACPI PCI bus> on pcib0
agp0: <VIA Generic host to PCI bridge> mem 0xea000000-0xea3fffff at device 0.0 on pci0
pcib1: <PCI-PCI bridge> at device 1.0 on pci0
pci1: <PCI bus> on pcib1
pci1: <display, VGA> at device 0.0 (no driver attached)
isab0: <PCI-ISA bridge> at device 7.0 on pci0
isa0: <ISA bus> on isab0
atapci0: <VIA 82C686 ATA100 controller> port 0xd000-0xd00f at device 7.1 on pci0
ata0: at 0x1f0 irq 14 on atapci0
ata1: at 0x170 irq 15 on atapci0
uhci0: <VIA 83C572 USB controller> port 0xd400-0xd41f irq 11 at device 7.2 on pci0
usb0: <VIA 83C572 USB controller> on uhci0
usb0: USB revision 1.0
uhub0: VIA UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 2 ports with 2 removable, self powered
ugen0: American Power Conversion Back-UPS 500 FW: 6.2.I USB FW: c1, rev 1.10/1.00, addr 2
uhci1: <VIA 83C572 USB controller> port 0xd800-0xd81f irq 11 at device 7.3 on pci0
usb1: <VIA 83C572 USB controller> on uhci1
usb1: USB revision 1.0
uhub1: VIA UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub1: 2 ports with 2 removable, self powered
pci0: <bridge, PCI-unknown> at device 7.4 (no driver attached)
pcm0: <VIA VT82C686A> port 0xe400-0xe403,0xe000-0xe003,0xdc00-0xdcff irq 12 at device 7.5 on pci0
fwohci0: <VIA VT6306> port 0xe800-0xe87f mem 0xea400000-0xea4007ff irq 12 at device 11.0 on pci0
fwohci0: PCI bus latency was changing to 250.
fwohci0: OHCI version 1.0 (ROM=1)
fwohci0: No. of Isochronous channel is 8.
fwohci0: EUI64 00:30:1b:ab:00:00:55:b8
fwohci0: Phy 1394a available S400, 3 ports.
fwohci0: Link S400, max_rec 2048 bytes.
firewire0: <IEEE1394(FireWire) bus> on fwohci0
rl0: <RealTek 8139 10/100BaseTX> port 0xec00-0xecff mem 0xea401000-0xea4010ff irq 11 at device 12.0 on pci0
rl0: Realtek 8139B detected. Warning, this may be unstable in autoselect mode
rl0: Ethernet address: 00:30:1b:ab:55:54
miibus0: <MII bus> on rl0
rlphy0: <RealTek internal media interface> on miibus0
rlphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
fdc0: <Enhanced floppy controller (i82077, NE72065 or clone)> port 0x3f7,0x3f0-0x3f5 irq 6 drq 2 on acpi0
fdc0: FIFO enabled, 8 bytes threshold
fd0: <1440-KB 3.5" drive> on fdc0 drive 0
sio0 port 0x3f8-0x3ff irq 4 on acpi0
sio0: type 16550A
ppc0 port 0x778-0x77b,0x378-0x37f irq 7 drq 3 on acpi0
ppc0: SMC-like chipset (ECP/EPP/PS2/NIBBLE) in COMPATIBLE mode
ppc0: FIFO with 16/16/8 bytes threshold
plip0: <PLIP network interface> on ppbus0
lpt0: <Printer> on ppbus0
lpt0: Interrupt-driven port
ppi0: <Parallel I/O> on ppbus0
atkbdc0: <Keyboard controller (i8042)> port 0x64,0x60 irq 1 on acpi0
atkbd0: <AT Keyboard> flags 0x1 irq 1 on atkbdc0
kbd0 at atkbd0
orm0: <Option ROM> at iomem 0xd0000-0xd3fff on isa0
pmtimer0 on isa0
sc0: <System console> at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=0x300>
sio1: configured irq 3 not in bitmap of probed irqs 0
sio1: port may not be enabled
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
Timecounters tick every 10.000 msec
fwohci0: BUS reset
fwohci0: node_id = 0xc800ffc0, CYCLEMASTER mode
firewire0: 1 nodes, maxhop <= 0, cable IRM = 0 (me)
acpi_cpu: CPU throttling enabled, 2 steps from 100% to 50.0%
ad0: 78533MB <IC35L080AVVA07-0> [159560/16/63] at ata0-master UDMA100
Mounting root from ufs:/dev/ad0s1a
WARNING: / was not properly dismounted
ffs_snapshot_mount: old format snapshot inode 3
Sorry for posting so much debugging output, but I'm still hoping to
find out what the systems having problems with bgfsck have in common...
cu
Gerrit
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