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    SubjectUDMA causes IDE corruption on Shuttle AK32L mobo (VIA KT266A), kernel 2.4.1[89]
    From
    Date
    Hi,
    I'm experiencing corrupted writes to IDE disks using a Shuttle AK32
    V2.1 motherboard, Athlon XP1800+, 256Mb DDR RAM when DMA is enabled.
    Disabling DMA using `hdparm -d0 /dev/hda` fixes this. I have tried
    two different hard disks, so I don't think that it is a fault with
    the drive itself.

    I have seen the behaviour using the stock 2.4.18 kernel from Mandrake
    8.2. and the 2.4.19 kernel from Mandrake 9.0:
    Linux version 2.4.19-16mdk (quintela@bi.mandrakesoft.com) (gcc version
    3.2 (Mandrake Linux 9.0 3.2-1mdk)) #1 Fri Sep 20 18:15:05 CEST 2002

    There are no log entries in /var/log/messages or /var/log/syslog when
    these faulty writes take place to indicate that there are any problems
    but copying a large file and checking it's md5sum shows it to be
    damaged.

    Below is the output of various commands / logs which may be relevant.

    Regards,
    Jim Halfpenny

    ########################

    Startup log messages (/var/log/messages):
    Nov 24 12:24:47 fox kernel: ide: Assuming 33MHz system bus speed for PIO
    modes; override with idebus=xx
    Nov 24 12:24:47 fox kernel: VP_IDE: IDE controller on PCI bus 00 dev 89
    Nov 24 12:24:47 fox kernel: PCI: No IRQ known for interrupt pin A of
    device 00:11.1. Please try using pci=biosirq.
    Nov 24 12:24:47 fox kernel: VP_IDE: chipset revision 6
    Nov 24 12:24:47 fox kernel: VP_IDE: not 100%% native mode: will probe
    irqs later
    Nov 24 12:24:47 fox kernel: VP_IDE: VIA vt8233 (rev 00) IDE UDMA100
    controller on pci00:11.1
    Nov 24 12:24:47 fox kernel: ide0: BM-DMA at 0xe000-0xe007, BIOS
    settings: hda:DMA, hdb:pio
    Nov 24 12:24:47 fox kernel: ide1: BM-DMA at 0xe008-0xe00f, BIOS
    settings: hdc:DMA, hdd:DMA
    Nov 24 12:24:47 fox kernel: hda: FUJITSU MPD3130AT, ATA DISK drive
    Nov 24 12:24:47 fox kernel: hdc: YAMAHA CRW8824E, ATAPI CD/DVD-ROM drive
    Nov 24 12:24:47 fox kernel: hdd: MATSHITADVD-ROM SR-8585, ATAPI
    CD/DVD-ROM drive
    Nov 24 12:24:47 fox kernel: ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
    Nov 24 12:24:47 fox kernel: ide1 at 0x170-0x177,0x376 on irq 15
    Nov 24 12:24:47 fox kernel: hda: 25431840 sectors (13021 MB) w/512KiB
    Cache, CHS=2909/141/62, UDMA(66)
    Nov 24 12:24:47 fox kernel: Partition check:
    Nov 24 12:24:47 fox kernel: /dev/ide/host0/bus0/target0/lun0:<6> [PTBL]
    [1583/255/63] p1 p2

    ########################

    $ cat /proc/cpuinfo
    processor : 0
    vendor_id : AuthenticAMD
    cpu family : 6
    model : 6
    model name : AMD Athlon(tm) XP 1800+
    stepping : 2
    cpu MHz : 1535.230
    cache size : 256 KB
    fdiv_bug : no
    hlt_bug : no
    f00f_bug : no
    coma_bug : no
    fpu : yes
    fpu_exception : yes
    cpuid level : 1
    wp : yes
    flags : fpu vme de tsc msr pae mce cx8 apic sep mtrr pge mca
    cmov pat pse36 mmx fxsr sse syscall mmxext 3dnowext 3dnow
    bogomips : 3060.53

    ########################

    $ cat /proc/ide/via (With DMA disabled for /dev/hda)
    ----------VIA BusMastering IDE Configuration----------------
    Driver Version: 3.34
    South Bridge: VIA vt8233
    Revision: ISA 0x0 IDE 0x6
    Highest DMA rate: UDMA100
    BM-DMA base: 0xe000
    PCI clock: 33.3MHz
    Master Read Cycle IRDY: 0ws
    Master Write Cycle IRDY: 0ws
    BM IDE Status Register Read Retry: yes
    Max DRDY Pulse Width: No limit
    -----------------------Primary IDE-------Secondary IDE------
    Read DMA FIFO flush: yes yes
    End Sector FIFO flush: no no
    Prefetch Buffer: yes yes
    Post Write Buffer: yes yes
    Enabled: yes yes
    Simplex only: no no
    Cable Type: 80w 40w
    -------------------drive0----drive1----drive2----drive3-----
    Transfer Mode: PIO PIO PIO PIO
    Address Setup: 30ns 120ns 30ns 30ns
    Cmd Active: 90ns 90ns 90ns 90ns
    Cmd Recovery: 30ns 30ns 30ns 30ns
    Data Active: 90ns 330ns 90ns 90ns
    Data Recovery: 30ns 270ns 30ns 30ns
    Cycle Time: 120ns 600ns 120ns 120ns
    Transfer Rate: 16.6MB/s 3.3MB/s 16.6MB/s 16.6MB/s

    ########################

    $ cat /proc/modules
    floppy 49340 0 (autoclean)
    snd-seq-midi 3680 0 (autoclean) (unused)
    snd-emu10k1-synth 4220 0 (autoclean) (unused)
    snd-emux-synth 25532 0 (autoclean) [snd-emu10k1-synth]
    snd-seq-midi-emul 4880 0 (autoclean) [snd-emux-synth]
    snd-seq-virmidi 2888 0 (autoclean) [snd-emux-synth]
    snd-seq-oss 26176 0 (unused)
    snd-seq-midi-event 3208 0 [snd-seq-midi snd-seq-virmidi
    snd-seq-oss]
    snd-seq 33264 2 [snd-seq-midi snd-emux-synth
    snd-seq-midi-emul snd-seq-virmidi snd-seq-oss snd-seq-midi-event]
    snd-pcm-oss 36932 0
    snd-mixer-oss 9016 1 [snd-pcm-oss]
    snd-emu10k1 56592 1 [snd-emu10k1-synth]
    snd-pcm 55808 0 [snd-pcm-oss snd-emu10k1]
    snd-timer 9964 0 [snd-seq snd-pcm]
    snd-util-mem 1280 0 [snd-emux-synth snd-emu10k1]
    snd-rawmidi 12864 0 [snd-seq-midi snd-seq-virmidi
    snd-emu10k1]
    snd-seq-device 3836 0 [snd-seq-midi snd-emu10k1-synth
    snd-emux-synth snd-seq-oss snd-seq snd-emu10k1 snd-rawmidi]
    snd-ac97-codec 25508 0 [snd-emu10k1]
    snd-hwdep 3840 0 [snd-emu10k1]
    snd 24804 0 [snd-seq-midi snd-emux-synth
    snd-seq-virmidi snd-seq-oss snd-seq-midi-event snd-seq snd-pcm-oss
    snd-mixer-oss snd-emu10k1 snd-pcm snd-timer snd-util-mem snd-rawmidi
    snd-seq-device snd-ac97-codec snd-hwdep]
    soundcore 3780 0 [snd]
    ppp_async 7456 0 (unused)
    ppp_generic 20064 0 [ppp_async]
    slhc 5072 0 [ppp_generic]
    af_packet 13000 0 (autoclean)
    8139too 14472 1 (autoclean)
    mii 1152 0 (autoclean) [8139too]
    supermount 14340 1 (autoclean)
    isofs 25652 0 (autoclean)
    inflate_fs 17892 0 (autoclean) [isofs]
    sr_mod 15096 0 (autoclean)
    ide-cd 28712 0
    cdrom 26848 0 [sr_mod ide-cd]
    ide-scsi 8212 0
    usb-uhci 21676 0 (unused)
    usbcore 58304 1 [usb-uhci]
    rtc 6560 0 (autoclean)
    reiserfs 169776 5
    sd_mod 11612 8
    eata 20472 4
    scsi_mod 91140 4 [sr_mod ide-scsi sd_mod eata]

    ########################

    $ cat /proc/ioports
    0000-001f : dma1
    0020-003f : pic1
    0040-005f : timer
    0060-006f : keyboard
    0070-007f : rtc
    0080-008f : dma page reg
    00a0-00bf : pic2
    00c0-00df : dma2
    00f0-00ff : fpu
    0170-0177 : ide1
    01f0-01f7 : ide0
    02f8-02ff : serial(auto)
    0376-0376 : ide1
    03c0-03df : vesafb
    03f6-03f6 : ide0
    03f8-03ff : serial(auto)
    0cf8-0cff : PCI conf1
    d000-d01f : Distributed Processing Technology SmartCache/Raid I-IV
    Controller
    d010-d018 : EATA
    d400-d4ff : Realtek Semiconductor Co., Ltd. RTL-8139/8139C
    d400-d4ff : 8139too
    d800-d81f : Creative Labs SB Live! EMU10k1
    d800-d81f : EMU10K1
    dc00-dc07 : Creative Labs SB Live! MIDI/Game Port
    e000-e00f : VIA Technologies, Inc. Bus Master IDE
    e000-e007 : ide0
    e008-e00f : ide1
    e400-e41f : VIA Technologies, Inc. UHCI USB
    e400-e41f : usb-uhci
    e800-e81f : VIA Technologies, Inc. UHCI USB (#2)
    e800-e81f : usb-uhci
    ec00-ec1f : VIA Technologies, Inc. UHCI USB (#3)
    ec00-ec1f : usb-uhci



    $ cat /proc/iomem
    00000000-0009fbff : System RAM
    0009fc00-0009ffff : reserved
    000a0000-000bffff : Video RAM area
    000c0000-000c7fff : Video ROM
    000cc000-000ccfff : Extension ROM
    000f0000-000fffff : System ROM
    00100000-0fffffff : System RAM
    00100000-0022614c : Kernel code
    0022614d-0029547f : Kernel data
    e0000000-e3ffffff : VIA Technologies, Inc. VT8367 [KT266]
    e4000000-e5ffffff : PCI Bus #01
    e4000000-e5ffffff : nVidia Corporation Vanta [NV6]
    e4000000-e4ffffff : vesafb
    e6000000-e7ffffff : PCI Bus #01
    e6000000-e6ffffff : nVidia Corporation Vanta [NV6]
    e9000000-e90000ff : Realtek Semiconductor Co., Ltd. RTL-8139/8139C
    e9000000-e90000ff : 8139too
    ffff0000-ffffffff : reserved



    # lspci -vvv
    00:00.0 Host bridge: VIA Technologies, Inc. VT8367 [KT266]
    Subsystem: VIA Technologies, Inc. VT8367 [KT266]
    Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
    ParErr- Stepping- SERR- FastB2B-
    Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
    <TAbort- <MAbort+ >SERR- <PERR+
    Latency: 8
    Region 0: Memory at e0000000 (32-bit, prefetchable) [size=64M]
    Capabilities: [a0] AGP version 2.0
    Status: RQ=31 SBA+ 64bit- FW- Rate=x1,x2,x4
    Command: RQ=0 SBA- AGP- 64bit- FW- Rate=<none>
    Capabilities: [c0] Power Management version 2
    Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
    PME(D0-,D1-,D2-,D3hot-,D3cold-)
    Status: D0 PME-Enable- DSel=0 DScale=0 PME-

    00:01.0 PCI bridge: VIA Technologies, Inc. VT8367 [KT266 AGP] (prog-if
    00 [Normal decode])
    Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
    ParErr- Stepping- SERR- FastB2B-
    Status: Cap+ 66Mhz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
    <TAbort- <MAbort+ >SERR- <PERR-
    Latency: 0
    Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
    I/O behind bridge: 0000f000-00000fff
    Memory behind bridge: e6000000-e7ffffff
    Prefetchable memory behind bridge: e4000000-e5ffffff
    BridgeCtl: Parity- SERR- NoISA+ VGA+ MAbort- >Reset- FastB2B-
    Capabilities: [80] Power Management version 2
    Flags: PMEClk- DSI- D1+ D2- AuxCurrent=0mA
    PME(D0-,D1-,D2-,D3hot-,D3cold-)
    Status: D0 PME-Enable- DSel=0 DScale=0 PME-

    00:09.0 SCSI storage controller: Distributed Processing Technology
    SmartCache/Raid I-IV Controller (rev 02)
    Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
    ParErr- Stepping- SERR- FastB2B-
    Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
    <TAbort- <MAbort- >SERR- <PERR-
    Latency: 32 (1000ns min, 2000ns max), cache line size 08
    Interrupt: pin A routed to IRQ 11
    BIST result: 00
    Region 0: I/O ports at d000 [size=32]
    Expansion ROM at <unassigned> [disabled] [size=32K]

    00:0a.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
    RTL-8139/8139C (rev 10)
    Subsystem: Realtek Semiconductor Co., Ltd. RT8139
    Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
    ParErr- Stepping- SERR- FastB2B-
    Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
    <TAbort- <MAbort- >SERR- <PERR-
    Latency: 32 (8000ns min, 16000ns max)
    Interrupt: pin A routed to IRQ 10
    Region 0: I/O ports at d400 [size=256]
    Region 1: Memory at e9000000 (32-bit, non-prefetchable)
    [size=256]
    Capabilities: [50] Power Management version 2
    Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=375mA
    PME(D0-,D1+,D2+,D3hot+,D3cold+)
    Status: D0 PME-Enable- DSel=0 DScale=0 PME-

    00:0b.0 Multimedia audio controller: Creative Labs SB Live! EMU10k1 (rev
    07)
    Subsystem: Creative Labs CT4780 SBLive! Value
    Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop-
    ParErr- Stepping- SERR- FastB2B-
    Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
    <TAbort- <MAbort- >SERR- <PERR-
    Latency: 32 (500ns min, 5000ns max)
    Interrupt: pin A routed to IRQ 5
    Region 0: I/O ports at d800 [size=32]
    Capabilities: [dc] Power Management version 1
    Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA
    PME(D0-,D1-,D2-,D3hot-,D3cold-)
    Status: D0 PME-Enable- DSel=0 DScale=0 PME-

    00:0b.1 Input device controller: Creative Labs SB Live! MIDI/Game Port
    (rev 07)
    Subsystem: Creative Labs Gameport Joystick
    Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop-
    ParErr- Stepping- SERR- FastB2B-
    Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
    <TAbort- <MAbort- >SERR- <PERR-
    Latency: 32
    Region 0: I/O ports at dc00 [size=8]
    Capabilities: [dc] Power Management version 1
    Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA
    PME(D0-,D1-,D2-,D3hot-,D3cold-)
    Status: D0 PME-Enable- DSel=0 DScale=0 PME-

    00:11.0 ISA bridge: VIA Technologies, Inc. VT8233 PCI to ISA Bridge
    Subsystem: VIA Technologies, Inc. VT8233 PCI to ISA Bridge
    Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
    ParErr- Stepping+ SERR- FastB2B-
    Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
    <TAbort- <MAbort- >SERR- <PERR-
    Latency: 0
    Capabilities: [c0] Power Management version 2
    Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
    PME(D0-,D1-,D2-,D3hot-,D3cold-)
    Status: D0 PME-Enable- DSel=0 DScale=0 PME-

    00:11.1 IDE interface: VIA Technologies, Inc. Bus Master IDE (rev 06)
    (prog-if 8a [Master SecP PriP])
    Subsystem: VIA Technologies, Inc. Bus Master IDE
    Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
    ParErr- Stepping- SERR- FastB2B-
    Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
    <TAbort- <MAbort- >SERR- <PERR-
    Latency: 32
    Interrupt: pin A routed to IRQ 0
    Region 4: I/O ports at e000 [size=16]
    Capabilities: [c0] Power Management version 2
    Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
    PME(D0-,D1-,D2-,D3hot-,D3cold-)
    Status: D0 PME-Enable- DSel=0 DScale=0 PME-

    00:11.2 USB Controller: VIA Technologies, Inc. USB (rev 1b) (prog-if 00
    [UHCI])
    Subsystem: VIA Technologies, Inc. (Wrong ID) USB Controller
    Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
    ParErr- Stepping- SERR- FastB2B-
    Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
    <TAbort- <MAbort- >SERR- <PERR-
    Latency: 32, cache line size 08
    Interrupt: pin D routed to IRQ 9
    Region 4: I/O ports at e400 [size=32]
    Capabilities: [80] Power Management version 2
    Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
    PME(D0-,D1-,D2-,D3hot-,D3cold-)
    Status: D0 PME-Enable- DSel=0 DScale=0 PME-

    00:11.3 USB Controller: VIA Technologies, Inc. USB (rev 1b) (prog-if 00
    [UHCI])
    Subsystem: VIA Technologies, Inc. (Wrong ID) USB Controller
    Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
    ParErr- Stepping- SERR- FastB2B-
    Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
    <TAbort- <MAbort- >SERR- <PERR-
    Latency: 32, cache line size 08
    Interrupt: pin D routed to IRQ 9
    Region 4: I/O ports at e800 [size=32]
    Capabilities: [80] Power Management version 2
    Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
    PME(D0-,D1-,D2-,D3hot-,D3cold-)
    Status: D0 PME-Enable- DSel=0 DScale=0 PME-

    00:11.4 USB Controller: VIA Technologies, Inc. USB (rev 1b) (prog-if 00
    [UHCI])
    Subsystem: VIA Technologies, Inc. (Wrong ID) USB Controller
    Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
    ParErr- Stepping- SERR- FastB2B-
    Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
    <TAbort- <MAbort- >SERR- <PERR-
    Latency: 32, cache line size 08
    Interrupt: pin D routed to IRQ 9
    Region 4: I/O ports at ec00 [size=32]
    Capabilities: [80] Power Management version 2
    Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
    PME(D0-,D1-,D2-,D3hot-,D3cold-)
    Status: D0 PME-Enable- DSel=0 DScale=0 PME-

    01:00.0 VGA compatible controller: nVidia Corporation NV6 [Vanta] (rev
    15) (prog-if 00 [VGA])
    Subsystem: Micro-star International Co Ltd MSI-8808
    Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
    ParErr- Stepping- SERR- FastB2B-
    Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
    <TAbort- <MAbort- >SERR- <PERR-
    Latency: 32 (1250ns min, 250ns max)
    Interrupt: pin A routed to IRQ 11
    Region 0: Memory at e6000000 (32-bit, non-prefetchable)
    [size=16M]
    Region 1: Memory at e4000000 (32-bit, prefetchable) [size=32M]
    Expansion ROM at <unassigned> [disabled] [size=64K]
    Capabilities: [60] Power Management version 1
    Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
    PME(D0-,D1-,D2-,D3hot-,D3cold-)
    Status: D0 PME-Enable- DSel=0 DScale=0 PME-
    Capabilities: [44] AGP version 2.0
    Status: RQ=31 SBA- 64bit- FW- Rate=x1,x2,x4
    Command: RQ=0 SBA- AGP- 64bit- FW- Rate=<none>


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