2007/11/20, Alan Cox <alan@xxxxxxxxxxxxxxxxxxx>: > > kernel: [734344.717844] irq 21: nobody cared (try booting with the > > "irqpoll" option) > > kernel: [734344.717866] > > Your machine decided to emit interrupt 21 without an apparent reason. > Whatever caused that made the kernel shut down IRQ 21 at which point the > disk drives on that IRQ were no longer being serviced. Everything on IRQ > 21 would have died - which may be why your networking failed too. > > What do you have on IRQ 21 and is this a one off ? I've had other freezes before but this was the first time I was able to see what was actually going on. IRQ 21 appears to be shared between sata_nv and ethernet. Does this mean my hardware/BIOS is broken somehow? I'm running the latest BIOS available. # cat /proc/interrupts CPU0 CPU1 0: 26497 3603163 IO-APIC-edge timer 1: 0 2 IO-APIC-edge i8042 8: 0 0 IO-APIC-edge rtc 9: 0 0 IO-APIC-fasteoi acpi 12: 0 6 IO-APIC-edge i8042 16: 4851 669159 IO-APIC-fasteoi shpchp, libata 20: 0 0 IO-APIC-fasteoi sata_nv 21: 36443 4775430 IO-APIC-fasteoi sata_nv, eth0 22: 31261 4531218 IO-APIC-fasteoi ohci_hcd:usb1, sata_nv 23: 4 1649 IO-APIC-fasteoi HDA Intel, ehci_hcd:usb2 NMI: 0 0 LOC: 3629562 3629543 ERR: 0 -- noah - To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html