Date: Sun, 12 Sep 1999 00:20:02 -0700 (PDT) From: "Ted Mittelstaedt" <tedm@toybox.placo.com> To: freebsd-bugs@FreeBSD.org Subject: Re: kern/11226: Invalid files on disk after fsync Message-ID: <199909120720.AAA78735@freefall.freebsd.org>
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The following reply was made to PR kern/11226; it has been noted by GNATS.
From: "Ted Mittelstaedt" <tedm@toybox.placo.com>
To: <freebsd-gnats-submit@freebsd.org>, <milt@moth.vicor-nb.com>
Cc:
Subject: Re: kern/11226: Invalid files on disk after fsync
Date: Sun, 12 Sep 1999 00:20:39 -0700
Hi All,
I was struck by the similarities between this and what happens with our
news server.
Once every 2 or 3 months I come in to find the server rebooted itself
during the night - and I'm sure it's due to a SCSI error because the news
spool is always scrambled. Usually, multiple invocations of fsck will
eventually clear the garbage out but I've had to regenerate the spools once
because of it.
The only one time that I have ever seen anything in the message log
regarding this is a rather cryptic log entry:
Aug 11 06:12:59 herald /kernel: biodone: buffer already done
This was made seconds before the system rebooted itself during one of those
times.
The server has done up to 2 million articles in a day and I'm sure that it's
during the peak times that this has happened.
I suspect there is some sequencing bug or other within the Adaptec SCSI
driver - of course I'm running with all go-fast options turned on including
async mounts on the spools. Output of dmesg follows:
# dmesg
Copyright (c) 1992-1998 FreeBSD Inc.
Copyright (c) 1982, 1986, 1989, 1991, 1993
The Regents of the University of California. All rights reserved.
FreeBSD 2.2.8-RELEASE #0: Mon Jan 25 00:50:14 PST 1999
tedm@herald.ipinc.net:/usr/src/sys/compile/HERALD
CPU: Pentium/P54C (166.19-MHz 586-class CPU)
Origin = "GenuineIntel" Id = 0x52c Stepping=12
Features=0x1bf<FPU,VME,DE,PSE,TSC,MSR,MCE,CX8>
real memory = 134217728 (131072K bytes)
avail memory = 129216512 (126188K bytes)
Probing for devices on PCI bus 0:
chip0 <Intel 82439> rev 3 on pci0:0:0
ahc0 <Adaptec 2940A Ultra SCSI host adapter> rev 1 int a irq 9 on pci0:2:0
ahc0: aic7860 Single Channel, SCSI Id=7, 3/8 SCBs
ahc0 waiting for scsi devices to settle
ahc0: target 0 Tagged Queuing Device
(ahc0:0:0): "SEAGATE ST51080N 0958" type 0 fixed SCSI 2
sd0(ahc0:0:0): Direct-Access 1030MB (2109840 512 byte sectors)
ahc1 <Adaptec 2940 Ultra SCSI host adapter> rev 1 int a irq 9 on pci0:3:0
ahc1: aic7880 Wide Channel, SCSI Id=7, 16/255 SCBs
ahc1 waiting for scsi devices to settle
Sending SDTR!!
ahc1: target 4 Tagged Queuing Device
(ahc1:4:0): "IBM OEM DCHS09F 2222" type 0 fixed SCSI 2
sd1(ahc1:4:0): Direct-Access 8689MB (17796077 512 byte sectors)
Sending SDTR!!
ahc1: target 5 Tagged Queuing Device
(ahc1:5:0): "IBM OEM DCHS09F 2222" type 0 fixed SCSI 2
sd2(ahc1:5:0): Direct-Access 8689MB (17796077 512 byte sectors)
Sending SDTR!!
ahc1: target 6 Tagged Queuing Device
(ahc1:6:0): "IBM OEM DCHS09F 2222" type 0 fixed SCSI 2
sd3(ahc1:6:0): Direct-Access 8689MB (17796077 512 byte sectors)
ahc2 <Adaptec 2940 Ultra SCSI host adapter> rev 1 int a irq 10 on pci0:4:0
ahc2: aic7880 Wide Channel, SCSI Id=7, 16/255 SCBs
ahc2 waiting for scsi devices to settle
ahc2: target 0 Tagged Queuing Device
(ahc2:0:0): "SEAGATE ST39102LW 0005" type 0 fixed SCSI 2
sd4(ahc2:0:0): Direct-Access 8683MB (17783240 512 byte sectors)
ahc2: target 1 Tagged Queuing Device
(ahc2:1:0): "SEAGATE ST39102LW 0005" type 0 fixed SCSI 2
sd5(ahc2:1:0): Direct-Access 8683MB (17783240 512 byte sectors)
ahc2: target 2 Tagged Queuing Device
(ahc2:2:0): "SEAGATE ST39102LW 0005" type 0 fixed SCSI 2
sd6(ahc2:2:0): Direct-Access 8683MB (17783240 512 byte sectors)
chip1 <Intel 82371SB PCI-ISA bridge> rev 1 on pci0:7:0
chip2 <Intel 82371SB IDE interface> rev 0 on pci0:7:1
vga0 <VGA-compatible display device> rev 0 on pci0:15:0
Probing for devices on the ISA bus:
sc0 at 0x60-0x6f irq 1 on motherboard
sc0: VGA color <16 virtual consoles, flags=0x0>
ed0 at 0x300-0x31f irq 5 maddr 0xdc000 msize 16384 on isa
ed0: address 00:00:c0:1e:eb:23, type WD8013W (16 bit)
sio0 at 0x3f8-0x3ff irq 4 on isa
sio0: type 16550A
lpt0 at 0x378-0x37f irq 7 on isa
lpt0: Interrupt-driven port
lp0: TCP/IP capable interface
psm0 at 0x60-0x64 irq 12 on motherboard
psm0: model Generic PS/2 mouse, device ID 0
fdc0 at 0x3f0-0x3f7 irq 6 drq 2 on isa
fdc0: FIFO enabled, 8 bytes threshold
fd0: 1.44MB 3.5in
wdc0 at 0x1f0-0x1f7 irq 14 on isa
wdc0: unit 0 (atapi): <685A/8.4D>, removable, dma, iordy
wcd0: 1171KB/sec, 120KB cache, audio play, 255 volume levels, ejectable tray
wcd0: no disc inside, unlocked
npx0 flags 0x1 on motherboard
npx0: INT 16 interface
Intel Pentium F00F detected, installing workaround
ccd0-1: Concatenated disk drivers
Ted
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