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Re: Losing interrupts

On Thu, Mar 08, 2001 at 11:53:05PM +0100, Mikael Cardell wrote:
> After I upgraded my Thinkpad 570 to Linux 2.4.0 I started noticing
> that it complained about losing interrupts and that the HDD wouldn't
> spin up after suspend one time in 10 or so. It's very irritating and
> means I have to reboot to get the HDD spinning again. If I revert to a
> 2.2.x kernel, this never happens.
> I'm guessing it has something to do with the APM support and I've
> tried different configurations, like allowing or disallowing
> interrupts during calls to the APM BIOS, but to no avail. I will check
> again with a 2.4.2 kernel as soon as I get back on a fatter pipe (I'm
> at home trying to fight the flu right now), and I hope that will fix
> things.
> Has anyone else had any similar problems?
Make sure you don't have any strange hdparm settings causing lost interrupts
at resume due to hardware <-> kernel settings mismatch.

Andreas Mohr

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