Re: DMA problem (?) w/2.4.6-xfs and ServerWorks OSB4 Chipset

Marvin Justice (mjustice@austin.rr.com)
Sun, 30 Sep 2001 15:37:16 -0500


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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