Possibly defective BIOS detected (irqtable) on a PE8450

Matt_Domsch@Dell.com Matt_Domsch at Dell.com
Thu Jan 2 15:07:00 CST 2003

> On a PE8450, I see the following kernel boot message:
> Dec 22 17:32:18 sim0 kernel:  *** Possibly defective BIOS detected 
> (irqtable)
> Dec 22 17:32:18 sim0 kernel:  *** Many BIOSes matching this signature 
> have incorrect IRQ routing tables.
> Dec 22 17:32:18 sim0 kernel:  *** If you see IRQ problems, in 
> particular 
> SCSI resets and hangs at boot
> Dec 22 17:32:18 sim0 kernel:  *** contact your hardware 
> vendor and ask 
> about updates.
> Dec 22 17:32:18 sim0 kernel:  *** Building an SMP kernel may 
> evade the bug some of the time.

Yes, we're aware of it, and the liklihood of that BIOS being fixed is really
really small (it's been like this for several years...  It's actually an
Intel BIOS.)  Please use an SMP kernel on the PE8450, that doesn't use the
pirq routing table and thus it works.


Matt Domsch
Sr. Software Engineer, Lead Engineer, Architect
Dell Linux Solutions www.dell.com/linux
Linux on Dell mailing lists @ http://lists.us.dell.com

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