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    SubjectDMA Problems with Intel 845 Chipset and Northwood CPU
    Date
    Hello all,

    Please accept my apologies if this question has already been answered....

    I have a new Pentium 4 computer and I can't get the DMA working for hard
    disk transfers. Specifically, its a Dell Dimension 4500 with a Pentium 4
    2.26 GHz processor (Northwood) and an 845 (Brookdale) chipset. RedHat
    7.3....

    I noticed that the hard disk transfers were very slow. I tried to set up
    DMA with hdparm - see below:

    [root@yoda ide]# hdparm /dev/hda

    /dev/hda:
    multcount = 16 (on)
    I/O support = 0 (default 16-bit)
    unmaskirq = 0 (off)
    using_dma = 0 (off)
    keepsettings = 0 (off)
    nowerr = 0 (off)
    readonly = 0 (off)
    readahead = 8 (on)
    geometry = 4866/255/63, sectors = 78177792, start = 0
    busstate = 1 (on)
    [root@yoda ide]# hdparm -d1 /dev/hda

    /dev/hda:
    setting using_dma to 1 (on)
    HDIO_SET_DMA failed: Operation not permitted
    using_dma = 0 (off)
    [root@yoda ide]#

    I thought that perhaps the chipset had changed between this Northwood
    machine an the older core - I have a P4 1.8 GHz machine that DMA works fine
    on. I upgraded to kernel 2.4.19 with no change.

    The IDE controller (according to Windows XP....) is an Intel 82801DB Ultra
    ATA Storage Controller - 24CB. I've included the lspci --vvx listing from
    the problem machine below - my aplogies for the long list. If anyone has
    any suggestions I'd really appreciate them...

    Thanks....

    Mark

    lspci listing:

    00:00.0 Host bridge: Intel Corp. 82845 845 (Brookdale) Chipset Host Bridge
    (rev 11)
    Subsystem: Intel Corp. 82845 845 (Brookdale) Chipset Host Bridge
    Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
    Stepping- SERR+ FastB2B-
    Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort-
    <MAbort+ >SERR- <PERR-
    Latency: 0
    Region 0: Memory at f0000000 (32-bit, prefetchable) [size=128M]
    Capabilities: [e4] #09 [a104]
    Capabilities: [a0] AGP version 2.0
    Status: RQ=31 SBA+ 64bit- FW+ Rate=x1,x2
    Command: RQ=0 SBA- AGP+ 64bit- FW- Rate=<none>
    00: 86 80 30 1a 06 01 90 20 11 00 00 06 00 00 00 00
    10: 08 00 00 f0 00 00 00 00 00 00 00 00 00 00 00 00
    20: 00 00 00 00 00 00 00 00 00 00 00 00 86 80 30 1a
    30: 00 00 00 00 e4 00 00 00 00 00 00 00 00 00 00 00

    00:01.0 PCI bridge: Intel Corp. 82845 845 (Brookdale) Chipset AGP Bridge
    (rev 11) (prog-if 00 [Normal decode])
    Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
    Stepping- SERR+ FastB2B-
    Status: Cap- 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort-
    <MAbort- >SERR- <PERR-
    Latency: 64
    Bus: primary=00, secondary=01, subordinate=01, sec-latency=64
    Memory behind bridge: fc700000-fe7fffff
    Prefetchable memory behind bridge: dc300000-ec4fffff
    BridgeCtl: Parity- SERR+ NoISA- VGA+ MAbort- >Reset- FastB2B-
    00: 86 80 31 1a 07 01 a0 00 11 00 04 06 00 40 01 00
    10: 00 00 00 00 00 00 00 00 00 01 01 40 f0 00 a0 22
    20: 70 fc 70 fe 30 dc 40 ec 00 00 00 00 00 00 00 00
    30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0a 00

    00:1d.0 USB Controller: Intel Corp.: Unknown device 24c2 (rev 01) (prog-if
    00 [UHCI])
    Subsystem: Dell Computer Corporation: Unknown device 0132
    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
    Interrupt: pin A routed to IRQ 11
    Region 4: I/O ports at e800 [size=32]
    00: 86 80 c2 24 05 00 80 02 01 00 03 0c 00 00 80 00
    10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    20: 01 e8 00 00 00 00 00 00 00 00 00 00 28 10 32 01
    30: 00 00 00 00 00 00 00 00 00 00 00 00 0b 01 00 00

    00:1d.1 USB Controller: Intel Corp.: Unknown device 24c4 (rev 01) (prog-if
    00 [UHCI])
    Subsystem: Dell Computer Corporation: Unknown device 0132
    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
    Interrupt: pin B routed to IRQ 5
    Region 4: I/O ports at e880 [size=32]
    00: 86 80 c4 24 05 00 80 02 01 00 03 0c 00 00 00 00
    10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    20: 81 e8 00 00 00 00 00 00 00 00 00 00 28 10 32 01
    30: 00 00 00 00 00 00 00 00 00 00 00 00 05 02 00 00

    00:1d.2 USB Controller: Intel Corp.: Unknown device 24c7 (rev 01) (prog-if
    00 [UHCI])
    Subsystem: Dell Computer Corporation: Unknown device 0132
    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
    Interrupt: pin C routed to IRQ 9
    Region 4: I/O ports at ec00 [size=32]
    00: 86 80 c7 24 05 00 80 02 01 00 03 0c 00 00 00 00
    10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    20: 01 ec 00 00 00 00 00 00 00 00 00 00 28 10 32 01
    30: 00 00 00 00 00 00 00 00 00 00 00 00 09 03 00 00

    00:1d.7 USB Controller: Intel Corp.: Unknown device 24cd (rev 01) (prog-if
    20 [EHCI])
    Subsystem: Dell Computer Corporation: Unknown device 0132
    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
    Interrupt: pin D routed to IRQ 10
    Region 0: Memory at febffc00 (32-bit, non-prefetchable) [size=1K]
    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-
    Capabilities: [58] #0a [2080]
    00: 86 80 cd 24 06 01 90 02 01 20 03 0c 00 00 00 00
    10: 00 fc bf fe 00 00 00 00 00 00 00 00 00 00 00 00
    20: 00 00 00 00 00 00 00 00 00 00 00 00 28 10 32 01
    30: 00 00 00 00 50 00 00 00 00 00 00 00 0a 04 00 00

    00:1e.0 PCI bridge: Intel Corp. 82801BA/CA PCI Bridge (rev 81) (prog-if 00
    [Normal decode])
    Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
    Stepping- SERR+ FastB2B-
    Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort-
    <MAbort- >SERR- <PERR+
    Latency: 0
    Bus: primary=00, secondary=02, subordinate=02, sec-latency=32
    I/O behind bridge: 0000d000-0000dfff
    Memory behind bridge: fe800000-feafffff
    Prefetchable memory behind bridge: ec500000-ec5fffff
    BridgeCtl: Parity- SERR+ NoISA+ VGA- MAbort- >Reset- FastB2B-
    00: 86 80 4e 24 07 01 80 80 81 00 04 06 00 00 01 00
    10: 00 00 00 00 00 00 00 00 00 02 02 20 d0 d0 80 22
    20: 80 fe a0 fe 50 ec 50 ec 00 00 00 00 00 00 00 00
    30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 06 00

    00:1f.0 ISA bridge: Intel Corp.: Unknown device 24c0 (rev 01)
    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
    00: 86 80 c0 24 0f 01 80 02 01 00 01 06 00 00 80 00
    10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    20: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

    00:1f.1 IDE interface: Intel Corp.: Unknown device 24cb (rev 01) (prog-if 8a
    [Master SecP PriP])
    Subsystem: Dell Computer Corporation: Unknown device 0132
    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
    Interrupt: pin A routed to IRQ 9
    Region 0: I/O ports at <unassigned> [size=8]
    Region 1: I/O ports at <unassigned> [size=4]
    Region 2: I/O ports at <unassigned> [size=8]
    Region 3: I/O ports at <unassigned> [size=4]
    Region 4: I/O ports at ffa0 [size=16]
    Region 5: Memory at 20000000 (32-bit, non-prefetchable) [disabled]
    [size=1K]
    00: 86 80 cb 24 05 00 80 02 01 8a 01 01 00 00 00 00
    10: 01 00 00 00 01 00 00 00 01 00 00 00 01 00 00 00
    20: a1 ff 00 00 00 00 00 20 00 00 00 00 28 10 32 01
    30: 00 00 00 00 00 00 00 00 00 00 00 00 ff 01 00 00

    00:1f.3 SMBus: Intel Corp.: Unknown device 24c3 (rev 01)
    Subsystem: Dell Computer Corporation: Unknown device 0132
    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-
    Interrupt: pin B routed to IRQ 3
    Region 4: I/O ports at e480 [size=32]
    00: 86 80 c3 24 01 00 80 02 01 00 05 0c 00 00 00 00
    10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    20: 81 e4 00 00 00 00 00 00 00 00 00 00 28 10 32 01
    30: 00 00 00 00 00 00 00 00 00 00 00 00 03 02 00 00

    01:00.0 VGA compatible controller: nVidia Corporation NV25 [GeForce4 Ti4200]
    (rev a3) (prog-if 00 [VGA])
    Subsystem: nVidia Corporation: Unknown device 0132
    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: 248 (1250ns min, 250ns max)
    Interrupt: pin A routed to IRQ 11
    Region 0: Memory at fd000000 (32-bit, non-prefetchable) [size=16M]
    Region 1: Memory at e0000000 (32-bit, prefetchable) [size=128M]
    Region 2: Memory at ec480000 (32-bit, prefetchable) [size=512K]
    Expansion ROM at fe7e0000 [disabled] [size=128K]
    Capabilities: [60] 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-
    Capabilities: [44] AGP version 2.0
    Status: RQ=31 SBA+ 64bit- FW+ Rate=x1,x2
    Command: RQ=31 SBA- AGP+ 64bit- FW- Rate=<none>
    00: de 10 53 02 07 00 b0 02 a3 00 00 03 00 f8 00 00
    10: 00 00 00 fd 08 00 00 e0 08 00 48 ec 00 00 00 00
    20: 00 00 00 00 00 00 00 00 00 00 00 00 de 10 32 01
    30: 00 00 00 00 60 00 00 00 00 00 00 00 0b 01 05 01

    02:00.0 Ethernet controller: Intel Corp. 82557/8/9 [Ethernet Pro 100] (rev
    10)
    Subsystem: Intel Corp.: Unknown device 0071
    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: 64 (2000ns min, 14000ns max), cache line size 08
    Interrupt: pin A routed to IRQ 11
    Region 0: Memory at feaff000 (32-bit, non-prefetchable) [size=4K]
    Region 1: I/O ports at dc00 [size=64]
    Region 2: Memory at feac0000 (32-bit, non-prefetchable) [size=128K]
    Expansion ROM at feae0000 [disabled] [size=64K]
    Capabilities: [dc] Power Management version 2
    Flags: PMEClk- DSI+ D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
    Status: D0 PME-Enable- DSel=0 DScale=2 PME-
    00: 86 80 29 12 17 01 90 02 10 00 00 02 08 40 00 00
    10: 00 f0 af fe 01 dc 00 00 00 00 ac fe 00 00 00 00
    20: 00 00 00 00 00 00 00 00 00 00 00 00 86 80 71 00
    30: 00 00 ae fe dc 00 00 00 00 00 00 00 0b 01 08 38

    02:02.0 Multimedia audio controller: Cirrus Logic CS 4614/22/24
    [CrystalClear SoundFusion Audio Accelerator] (rev 01)
    Subsystem: Voyetra Technologies: Unknown device 3357
    Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
    Stepping- SERR+ FastB2B-
    Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=slow >TAbort- <TAbort-
    <MAbort- >SERR- <PERR-
    Latency: 64 (1000ns min, 6000ns max)
    Interrupt: pin A routed to IRQ 9
    Region 0: Memory at feafd000 (32-bit, non-prefetchable) [size=4K]
    Region 1: Memory at fe900000 (32-bit, non-prefetchable) [size=1M]
    Capabilities: [40] 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: 13 10 03 60 06 01 10 04 01 00 01 04 00 40 00 00
    10: 00 d0 af fe 00 00 90 fe 00 00 00 00 00 00 00 00
    20: 00 00 00 00 00 00 00 00 00 00 00 00 53 50 57 33
    30: 00 00 00 00 40 00 00 00 00 00 00 00 09 01 04 18


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