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Date:      Tue, 23 Apr 2002 11:48:17 -0600 (MDT)
From:      Scott Owens <sowens@cs.utah.edu>
To:        freebsd-hardware@freebsd.org
Subject:   Question about file corrpution
Message-ID:  <Pine.LNX.4.21.0204231146260.8386-100000@famine.cs.utah.edu>

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I posted this question to freebsd-question a few days ago, but did not get
a response so I hope you can help me here.

I am having problems with files being corrupted which I will describe in
detail below.  I would appreciate advice on whether this is a FreeBSD bug
or if I should get a different motherboard.

Whenever I am transfering a large amount of data to my hard disk, some of
it becomes corrupted.  I have been able to reproduce the problem in the
following circumstances:
1) Copying a CD-ROM to the hard disk in both single and multi-user modes.
2) Copying a large (~1.5 GB) file from the network (100 mbps) to my hard
drive.
3) taring up a large (~1.5 GB) directory tree.
I have not been able to find any corruption in files copied from this
computer to another over the network, leading me to believe that the
problem is just in writing to the disk, not reading from it.

I am using an IWILL KK266 motherboard which uses the VIA KT133A chipset
which was known to have data corruption problems, though mostly in
conjunction with the SoundBlaster Live sound card, which I do not have.  I
am using the most updated BIOS which claims to have solved the data
corruption problems.  Also FreeBSD's ATA driver seems to claim that it
fixes the bug as well (see below).

So basically I am unsure if I am experiencing the KT133A problem or
something else.

-Thank you,
  Scott Owens

The output of dmesg is:
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 4.5-RELEASE #0: Thu Feb 14 13:28:56 MST 2002
    sowens@Ryoko:/usr/src/sys/compile/RYO-OKI
Timecounter "i8254"  frequency 1193182 Hz
CPU: AMD Athlon(tm) processor (1197.37-MHz 686-class CPU)
  Origin = "AuthenticAMD"  Id = 0x642  Stepping = 2

Features=0x183f9ff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,SEP,MTRR,PGE,MCA,CMOV,PAT,
PSE36,MMX,FXSR>
  AMD Features=0xc0440000<<b18>,AMIE,DSP,3DNow!>
real memory  = 268369920 (262080K bytes)
avail memory = 256860160 (250840K bytes)
Preloaded elf kernel "kernel" at 0xc0433000.
Pentium Pro MTRR support enabled
md0: Malloc disk
Using $PIR table, 10 entries at 0xc00fded0
npx0: <math processor> on motherboard
npx0: INT 16 interface
pcib0: <Host to PCI bridge> on motherboard
pci0: <PCI bus> on pcib0
pcib1: <VIA 8363 (Apollo KT133) PCI-PCI (AGP) bridge> at device 1.0 on
pci0
pci1: <PCI bus> on pcib1
pci1: <NVidia model 0110 graphics accelerator> at 0.0 irq 11
isab0: <VIA 82C686 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
atapci0: Correcting VIA config for southbridge data corruption bug
ata0: at 0x1f0 irq 14 on atapci0
ata1: at 0x170 irq 15 on atapci0
uhci0: <VIA 83C572 USB controller> port 0xd400-0xd41f irq 9 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
uhub1: Texas Instruments UT-USB41 hub, class 9/0, rev 1.10/1.10, addr 2
uhub1: 4 ports with 4 removable, bus powered
ums0: Logitech USB-PS/2 Optical Mouse, rev 2.00/11.00, addr 3, iclass 3/1
ums0: 3 buttons and Z dir.
uhci1: <VIA 83C572 USB controller> port 0xd800-0xd81f irq 9 at device 7.3
on pci0
usb1: <VIA 83C572 USB controller> on uhci1
usb1: USB revision 1.0
uhub2: VIA UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub2: 2 ports with 2 removable, self powered
chip1: <VIA 82C686 ACPI interface> at device 7.4 on pci0
rl0: <RealTek 8139 10/100BaseTX> port 0xdc00-0xdcff mem
0xdf000000-0xdf0000ff irq 10 at device 10.0 on pci0
rl0: Ethernet address: 00:50:bf:78:e7:ed
miibus0: <MII bus> on rl0
rlphy0: <RealTek internal media interface> on miibus0
rlphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
pcm0: <CMedia CMI8738> port 0xe000-0xe0ff irq 12 at device 15.0 on pci0
orm0: <Option ROM> at iomem 0xcc000-0xcffff 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
kbd0 at atkbd0
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: Generic chipset (EPP/NIBBLE) in COMPATIBLE mode
ppi0: <Parallel I/O> on ppbus0
plip0: <PLIP network interface> on ppbus0
lpt0: <Printer> on ppbus0
lpt0: Interrupt-driven port
ad0: 28629MB <QUANTUM FIREBALLP LM30> [58168/16/63] at ata0-master UDMA66
acd0: CDROM <ATAPI CD-ROM MAX 52X> at ata1-master using PIO4
Mounting root from ufs:/dev/ad0s1a





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