Re: FIXED: aic7xxx problems with SMP & 2.1.106

dancer@uluru.brisnet.org.au
Tue, 23 Jun 1998 09:31:48 +1000 (EST)


Yes, we also had problem number two with some new servers. The eepro
was sited on the motherboard however. Nobody's quite sure how it
was fixed..just that after rebuilding the kernel (2.0.32) it worked
again, and the interrupt sharing was happy...apparently.

>
>
> I had two problems, which were both (possibly) not the fault of
> the aix7xxx driver:
>
> 1. 2 IO-APIC's. I finally noticed both the discreet "Warning:
> Multiple APIC's not supported" bootup message, and the "Disable
> secondary APIC" option in the BIOS. Both APIC's enabled resulted
> in Linux deciding that the scsi0 device was at an interrupt that
> it wasn't really at. That sort of hung the boot process.
>
> 2. Once I got the APIC problem solved, I found that both my eepro100
> and my scsi1 were sharing the same interrupt. / is on scsi1, so
> that interrupt was causing lots of activity. A kernel complile
> resulted in more "scsi: aborting command due to timeout..."
> messages, which were then followed by messages from the ethernet
> driver about a lost interrupt or something. I moved the eepro100
> to the second PCI bus so that it had its own interrupt, and the
> system seems to be quite stable now. (So, IRQ sharing between
> aic7xxx and eepro100 seems broken!)
>
> Some system info:
> CPU0 CPU1 CPU2 CPU3
> 0: 18424 30176 149440 30416 IO-APIC-edge timer
> 1: 404 759 3781 761 IO-APIC-edge keyboard
> 2: 0 0 0 0 XT-PIC cascade
> 9: 8907 17891 88969 17802 IO-APIC-edge Intel EtherExpress Pro 10/100 Ethernet
> 10: 2284 3206 16302 3345 IO-APIC-edge aic7xxx
> 11: 45 3 3 8 IO-APIC-edge aic7xxx
> 12: 1257 2539 12729 2487 IO-APIC-edge PS/2 Mouse
> 13: 1 0 0 0 XT-PIC fpu
> 14: 3 0 0 0 IO-APIC-edge ide0
> NMI: 0
> IPI: 0
>
> If anyone wants me to test something on here, let me know.
>
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