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    SubjectRe: DMA problem (?) w/2.4.6-xfs and ServerWorks OSB4 Chipset
    On Sun, 30 Sep 2001, Marvin Justice wrote:

    > The error :
    >
    > Curious - OSB4 thinks the DMA is still running.
    > OSB4 wait exit
    >
    > appears to occur during the "rewrite" phase of Bonnie++ every time we run it.
    > The setup is a Tyan 2515 with a Seagate ST310211A drive. Bonnie ran for ~48
    > hours on 2.4.10 without slowdown (I assume this is because the extra check in
    > -ac isn't present) but there was some file system corruption after the 1st 24
    > hours:
    >
    > EXT2-fs error (device ide0(3,6)): ext2_free_blocks: Freeing blocks not in
    > datazone - block = 2138996092, count = 1
    >
    > Here's the lspci:
    >
    > 00:00.0 Host bridge: ServerWorks CNB20LE (rev 06)
    > Flags: bus master, medium devsel, latency 32
    >
    > 00:00.1 Host bridge: ServerWorks CNB20LE (rev 06)
    > Flags: bus master, medium devsel, latency 16
    >
    > [snip]
    >
    > 00:0f.0 ISA bridge: ServerWorks OSB4 (rev 50)
    > Subsystem: ServerWorks OSB4
    > Flags: bus master, medium devsel, latency 0
    >
    > 00:0f.1 IDE interface: ServerWorks: Unknown device 0211 (prog-if 8a [Master
    > SecP PriP])
    > Flags: bus master, medium devsel, latency 64
    > I/O ports at ffa0 [size=16]
    >
    >
    > --
    > Marvin Justice
    > Software Developer
    > BOXX Technologies, Inc.
    > www.boxxtech.com
    > 512-235-6318 (V)
    > 412-835-0434 (F)
    >

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