Re: Linux v2.6.12-rc4: IRQ14 nobody cared
From: Paulo Marques
Date: Mon May 09 2005 - 12:39:36 EST
Bartlomiej Zolnierkiewicz wrote:
On 5/9/05, Paulo Marques <pmarques@xxxxxxxxxxxx> wrote:
[...]
2.6.12-rc4 halts during boot with a "IRQ 14: nobody cared" message.
2.6.12-rc3 boots (and works) fine with the same configuration.
[...]
Perhaps you can try first -rc3 git snapshot (still a lot of stuff):
http://www.kernel.org/pub/linux/kernel/v2.6/snapshots/patch-2.6.12-rc3-git1.bz2
I tried this version with the same results.
It seems that I've got something weird in my compilation setup.
I set up a serial console to see the messages from boot and near the
beggining I get:
"Unknown bustype PCI - ignoring"
The code that generates this is at arch/i386/mpparse.c:
} else if (strncmp(str, BUSTYPE_PCI, sizeof(BUSTYPE_PCI)-1) == 0) {
...
} else if (strncmp(str, BUSTYPE_MCA, sizeof(BUSTYPE_MCA)-1) == 0) {
> ...
} else {
printk(KERN_WARNING "Unknown bustype %s - ignoring\n", str);
}
BUSTYPE_PCI is defined at include/asm-i386/mpspec_def.h:
#define BUSTYPE_PCI "PCI"
so that first "if" statement translates to
> } else if (strncmp(str, "PCI", 3) == 0) {
which should be always valid for "PCI ", and that message should never
appear :(
Well, sorry about the noise, I must dig deeper now...
--
Paulo Marques - www.grupopie.com
An expert is a person who has made all the mistakes that can be
made in a very narrow field.
Niels Bohr (1885 - 1962)
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