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List:       linux-kernel
Subject:    Re: IDE Disk Corruption with 2.4.3 / NOT with AC kernels
From:       Wayne Whitney <whitney () math ! berkeley ! edu>
Date:       2001-03-31 19:47:06
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In mailing-lists.linux-kernel, you wrote:

> I run into some major disk corruptions on my IDE disk with the new
> 2.4.3 kernel version. [ . . . ] Now I did some more testing and found
> out that the Alan Cox series of kernel patches does not show these
> problems.

Hmm, 2.4.2-ac28 and 2.4.3 have the same collection of VIA fixups in
arch/i386/kernel/pci-pc.c.  Something else must be causing this?

> I was using the same .config file for all tests to make sure that the
> problem was not caused by a kernel configuration issue.


Did you run the .config through a 'make oldconfig' on each kernel, to
catch CONFIG name changes and so forth?

> This is my hardware:
>	- ABit KT7 board (KT133 chipset reported by lspci)

Does the BIOS have a setting that sounds like "System performance
setting" with choices such as "Optimal" or "Normal"? If so, try both
settings.  The terminology above is what is used on the ASUS A7V.

>Here is the output of lspci:

What would be quite useful, I think, is the output of 'lspci -xxx -s
0:0' under both the non-corrupting kernel (2.4.2-ac28) and the
corrupting kernel (2.4.3).  The output of 'dmesg' under both kernels
would also be good.

I find that a good way to present information like that, where most of
it should be the same and one is looking for the differences, is via
'diff -u --unified=1000 a b'.

Cheers,
Wayne

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