Re: SMP IRQ management issues in 2.4.x

Alan Cox (alan@lxorguk.ukuu.org.uk)
Fri, 22 Mar 2002 15:11:30 +0000 (GMT)


> > That doesnt look like an interrupt problem to be honest. Perhaps nvdriver
> > is triggering something else
> >
> > (the Busy is the drive saying its still waiting for something)
>
> Just wanted to close the issue by saying it came out that it actually is NOT an IRQ problem.
> Another close look at "hdparm -I" vs. "harparm -v" (and syslog) revealed that
> the hard disks had been configured for UDMA mode 5 by the controller
> (probably at boot time) while the Linux kernel set them to some IO mode.
>
> Having found this out, I really wonder how the disks managed to work under
> any circumstances at all.

Thats interesting in itself, and an important clue

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/