Re: [3/6] 2.6.21-rc2: known regressions

Michal Jaegermann
2007-03-05T04:03:46Z

On Mon, Mar 05, 2007 at 02:50:36AM +0100, Adrian Bunk wrote:
> This email lists some known regressions in 2.6.21-rc2 compared to 2.6.20
> that are not yet fixed in Linus' tree.
....
> Subject : kernels fail to boot with drives on ATIIXP controller
> References : https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=229621
> Submitter : Michal Jaegermann <michal@ellpspace.math.ualberta.ca>
> Status : unknown

Alan added comment to my posting that my problems are caused by
messed up IRQ routing on that box I tried. Indeed, I can boot
kernel 2.6.20-1.2962.fc7, which really is 2.6.21-rc2, provided
I will use 'acpi=off irqpoll'. Anything else and a boot silently
dies if 'acpi=off' is skipped or is not finding disk if 'irqpoll'
is missing.

Somehow 2.6.19 is booting on the same hardware without "valliant
efforts"; OTOH 'ahci' driver was not used there.

Michal