Chuck Ebbert wrote:
> On 09/06/2007 07:31 AM, Andi Kleen wrote:
> > Chuck Ebbert <[email protected]> writes:
> >> Some systems lock up without the noapic option.
> >
> > Please find patterns: cpu type, chipsets, mainboard vendors etc.
>
> This is the first one I've actually had in front of me:
>
> HP TX1000 notebook
> Nvidia C51/MCP51 mobile chipset
>
> Booting with "noapic" gives some very strange results. This is two
> snapshots of /proc/interrupts taken one second apart. It almost looks
> like timer interrupts are occurring on IRQ 0 and IRQ7 on different
> CPUs:
>
> CPU0 CPU1
> 0: 446096 6224 XT-PIC-XT timer
> 1: 342 6 XT-PIC-XT i8042
> 2: 0 0 XT-PIC-XT cascade
> 5: 3099 865 XT-PIC-XT sata_nv
> 7: 8145 494718 XT-PIC-XT ehci_hcd:usb2
> 8: 0 0 XT-PIC-XT rtc0
> 9: 323 9 XT-PIC-XT acpi
> 10: 136 36 XT-PIC-XT HDA Intel
> 11: 43884 1091 XT-PIC-XT ohci_hcd:usb1, eth0
> 12: 104 19 XT-PIC-XT i8042
> 14: 1011 25 XT-PIC-XT libata
> 15: 0 0 XT-PIC-XT libata
> NMI: 0 0
> LOC: 6212 445951
> ERR: 403241
> MIS: 0
You may want to try to reconfigure your bios to reserve irq 5/7 for isa only.
Then post /proc/interrupts again.
Thanks!
--
Al
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