Re: USB regression (and other failures) in 2.6.2[45]* - mostlyresolved

[Alan Stern]

On Tue, 19 Feb 2008, Andrew Buehler wrote:

> With those two problems out of the way, what is left is the hard-drive
> issue, and that is also halfway fixed by enabling ACPI. Specifically, it
> is "fixed" in that the kernel sees the hard drive and I can mount it,
> but it is not fixed in that the program we need to use in this
> environment does not see the drive.

What do you mean by "does not see the drive"?

> I have a config from a boot disc running 2.6.5 (that's not a typo) under
> which the program in question *does* see the drive, but there are
> massive differences between that config and the one I am using now, and
> narrowing the critical difference down is likely to be somewhat
> difficult - particularly since some of the "differences" are merely
> renamed config symbols (i.e. the CONFIG_SCSI_SATA_*->CONFIG_SATA_*
> switchover), and I have limited ability to tell which without intensive
> investigation. Are there any established techniques for simplifying this
> kind of comparison?

The only established technique is to run various kernels intermediate 
between the one that works and the one that fails.

Alan Stern

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