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    SubjectRe: sata_sil24 resetting controller...
    Tejun Heo wrote:
    >> serror=0x0[4297873.266000] sata_sil24 ata1: resetting controller...
    >> [4297873.267000] ata1: status=0x50 { DriveReady SeekComplete }
    >> [4297873.267000] sdc: Current: sense key=0x0
    >> [4297873.267000] ASC=0x0 ASCQ=0x0
    >>
    >> The time between these events varies from .5s to up to 10s, resync speed is
    >> pretty bad (6mb/s) but appears(!) to be working.
    >> This is with vanilla 2.6.17-rc3, sata drivers built into the kernel.
    >> Find below /proc/interrupts and lspci output. Boot dmesg output was washed
    >> away by above messages, sorry.
    >>
    >> What's the cause of the error, can I ignore it or will it destroy
    >> my raid eventually? I'm now about 5% through the resync process, with
    >> an estimated finish in 1260 minutes.
    >>
    >> Thanks,
    >>
    >> Jan
    >>
    >>
    >> $ lspci -vv -s 03:04.0
    >> 0000:03:04.0 RAID bus controller: Silicon Image, Inc. SiI 3124 PCI-X Serial ATA Controller (rev 01)
    >> Subsystem: Silicon Image, Inc.: Unknown device 7124
    >> 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 22
    >> Region 0: Memory at fa800000 (64-bit, non-prefetchable) [size=128]
    >> Region 2: Memory at fa000000 (64-bit, non-prefetchable) [size=32K]
    >> Region 4: I/O ports at 9400 [size=16]
    >> Expansion ROM at fe900000 [disabled] [size=512K]
    >> Capabilities: [64] Power Management version 2
    >> Flags: PMEClk- DSI+ D1+ D2+ AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
    >> Status: D0 PME-Enable- DSel=0 DScale=1 PME-
    >> Capabilities: [40] PCI-X non-bridge device.
    >> Command: DPERE- ERO+ RBC=0 OST=5
    >> Status: Bus=3 Dev=4 Func=0 64bit+ 133MHz+ SCD- USC-, DC=simple, DMMRBC=2, DMOST=5, DMCRS=4, RSCEM-
    >
    > So, slow down the PCI-X bus. It can usually be done from BIOS setup
    > menu. Does your machine has a riser board which extends or changes
    > orientation of PCI-X bus? Motherboard vendors describe the bus
    > frequency limit when using riser boards in the manual but sometimes
    > server vendors forget to set them. Heck, some of them don't even know
    > what that is.


    Hmm I don't have a riser card and I don't have a setting for the frequency,
    nor a jumper.
    I plugged the card in another slot, next to a 66MHz only card. So now I've
    it working with 66MHz (checked with lspci), but my drive isn't initialized
    properly anymore:

    [4294690.486000] libata version 1.20 loaded.
    [4294690.486000] sata_sil24 0000:03:04.0: version 0.23
    [4294690.486000] ACPI: PCI Interrupt 0000:03:04.0[A] -> GSI 24 (level, low) -> IRQ 22
    [4294690.487000] ata1: SATA max UDMA/100 cmd 0xF8810000 ctl 0x0 bmdma 0x0 irq 22
    [4294690.487000] ata2: SATA max UDMA/100 cmd 0xF8812000 ctl 0x0 bmdma 0x0 irq 22
    [4294690.487000] ata3: SATA max UDMA/100 cmd 0xF8814000 ctl 0x0 bmdma 0x0 irq 22
    [4294690.487000] ata4: SATA max UDMA/100 cmd 0xF8816000 ctl 0x0 bmdma 0x0 irq 22
    [4294690.800000] ata1: SATA link up 3.0 Gbps (SStatus 123)
    [4294690.801000] ata1: dev 0 cfg 49:5145 82:0000 83:0000 84:0000 85:0000 86:0000 87:0000 88:0000
    [4294690.801000] ata1: dev 0 ATA-0, max MWDMA2, 16514064 sectors: CHS 16383/16/63
    [4294690.802000] ata1: dev 0 model number mismatch 'WDC WD3200re/sasats_li42S' != ''
    [4294690.802000] ata1: dev 0 revalidation failed (errno=-19)
    [4294690.802000] ata1: failed to revalidate after set xfermode
    [4294690.802000] scsi2 : sata_sil24
    [4294691.003000] ata2: SATA link down (SStatus 0)
    [4294691.003000] scsi3 : sata_sil24
    [4294691.204000] ata3: SATA link down (SStatus 0)
    [4294691.204000] scsi4 : sata_sil24
    [4294691.405000] ata4: SATA link down (SStatus 0)
    [4294691.405000] scsi5 : sata_sil24

    Can this still be a pci bus problem? I get the same error on every reboot.

    Jan

    ps: the raid survived :-), though it's obviously missing one disk now.
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