Redhat 7.2 kernel-smp-2.4.9-7 failure on 2550
Matt_Domsch at Dell.com
Mon Nov 5 08:37:00 CST 2001
> Our 2550 fails to boot with latest smp kernel errata
> (kernel-smp-2.4.9-7). It says:
Latest is actually 2.4.9-13 now. Progress...
> AAC: NMI ISR: NMI_DMA_0_ERROR
> and hangs. This is just after the "Press 'I' to enter interactive
> startup" message.
> The non-smp kernel (kernel-2.4.9-7) boots fine.
> Not sure how to proceed. I tried comparing the dmesg output between
> the 2.4.7-10smp kernel (this is what we were using before the upgrade)
> and the 2.4.9-7 kernel which boots, and there are some suspicious
> messages about shared and conflicting IRQs... could this be the
Absolutely. Sounds like there's something wierd with IRQ routing on your
system. Can you post the diff (diff -bu) between the working and
non-working kernel dmesg? (serial console is your friend here!) On the
non-smp kernel, you would expect to see IRQ sharing (it doesn't use the
IOAPICs, so you've got only IRQ 0-15 at most to use, and most of those are
already assigned to something).
> PCI: Found IRQ 9 for device 02:04.0
> IRQ routing conflict for 02:04.0, have irq 10, want irq 9
Hmmm. That's kind of wierd. What BIOS are you running? A05 for the latest
for the PE2550.
> Apart from that, the aacraid driver has changed from the "Sep 6 2001"
> version to "Oct 18 2001".
This part is normal. The code grabs this date at build time, and that's
when RH rebuilt the kernel (thus the driver).
This indicates that you need to perform a battery recondition (and that the
driver has a bug in the printing of that message, but that's now
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