On Thu, 05 Apr 2007 08:34:59 -0600 Robert Hancock <[EMAIL PROTECTED]> wrote:
> Jan Engelhardt wrote: > > Hello list, > > > > > > > > let's take the following /proc/interrupts dump (CPU2,CPU3 trimmed)... > > > > CPU0 CPU1 > > 0: 37041766 37038991 IO-APIC-edge timer > > 1: 10 2 IO-APIC-edge i8042 > > 8: 0 0 IO-APIC-edge rtc > > 9: 0 0 IO-APIC-level acpi > > 12: 114 0 IO-APIC-edge i8042 > > 14: 25219 5800049 IO-APIC-edge ide0 > > 201: 260381 238454 IO-APIC-level aacraid > > 209: 0 0 IO-APIC-level ohci_hcd:usb1 > > 217: 0 0 IO-APIC-level ehci_hcd:usb2 > > 225: 57531742 0 IO-APIC-level eth0,[EMAIL > > PROTECTED]:0000:03:00.0 > > 233: 26 0 IO-APIC-level eth1 > > NMI: 1661 1397 > > LOC: 147579966 147579949 > > ERR: 0 > > MIS: 0 > > > > My question is whether it is possible that eth0's interrupts go to CPU0 > > and radeon's to CPU1, and if so, how I would enable that. Alternatively, > > is it possible to just move eth0 or radeon to a different interrupt? > > Generally (at least in APIC mode) the IRQ assignments are based on > hard-wired interrupt lines on the board. In this case, the slots that > the Radeon and eth0 card are in likely share a physical interrupt line > and there is no way to separate them in software. You can try moving the > card(s) to different slots.. > If the radeon and/or the Ethernet driver support MSI, that would split out the IRQ's as well. -- Stephen Hemminger <[EMAIL PROTECTED]> - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
