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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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