Possibly defective BIOS detected (irqtable) on a PE8450

Marc Schmitt schmitt at inf.ethz.ch
Thu Jan 2 16:26:01 CST 2003


Matt_Domsch at dell.com wrote:

>>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.
>  
>
Thanks for your answer, I'm not sure how to put your advice into action, 
though.
Can this be achieved with the "noapic" kernel boot option?

Regards,
    Marc
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