Re: Kernel panic during boot (Can't get irq for primary IDE!)

Andre M. Hedrick (hedrick@astro.dyer.vanderbilt.edu)
Thu, 29 Oct 1998 13:12:01 -0600 (CST)


Okay, I am in with two cents also.............

Since 2.1.122, I have been primarily responsible for the IDE direction.
There was a miss juggle of chipset priorities in getting off-board
pci-chipsets to boot. This is all cleared up as of 2.1.126.

This boot order would have been present in cases where the IDE device
(assume that we are talking IDE-PCI, here) bus number is greater than the
PCI slots. Thus getting a lower priority in the ide_pci_scan function at
init time. This only has mean if there are extra PCI controllers in
slots.

On Thu, 29 Oct 1998, Stephen C. Tweedie wrote:

> Hi,
>
> On Wed, 28 Oct 1998 08:15:28 -0500, Mark Lord <mlord@pobox.com> said:
>
> > Thomas Iversen wrote:
>
> >> With recent kernels (2.1.125) I sometimes get the following sequence at
> >> boot. I have tried to get at clear picture of what's going on, and what
> >> triggers the kernel panic. ...
>
> >> ide0: UNABLE TO GET IRQ -12
>
> > Some device is floating the IRQ12 line during probing,
> > tricking the IDE driver into thinking that IRQ12 belongs to ide0.
>
> I see exactly the same, about 30% of the time, when booting an old 486

Is this a PCI/VL/ISA or what kind of card controller system are we
speaking of at this time?

> on 2.1. It detects IDE 100% reliably on 2.0. The only difference is that
> the IRQ in question this time is 10 (in use by an ne2k card, which of
> course does not get probed for until later).
>
> There does seem to be a regression.
>
> --Stephen
>
> -
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@vger.rutgers.edu
> Please read the FAQ at http://www.tux.org/lkml/
>

Cheers,
Andre Hedrick
The IDE-FNG for Linux
The APC UPS Specialist for Linux

http://www.dyer.vanderbilt.edu/server/udma/
http://www.dyer.vanderbilt.edu/server/apcupsd/apcupsd-3.4.9.bin.linux.tar.gz

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