kernel IRQ7 problem

Hi, Just setup a new fc6t3 system and updated to current rawhide. The system is an an Asus am2 motherboard with nvidia nForce 590 sli chipset. It scrolls these messages once or twice within 5 minutes of booting: Sep 22 19:38:41 localhost kernel: irq 7: nobody cared (try booting with the "irqpoll" option) Sep 22 19:38:41 localhost kernel: Sep 22 19:38:41 localhost kernel: Call Trace: Sep 22 19:38:41 localhost kernel: [<ffffffff8026ebbd>] show_trace+0xae/0x336 Sep 22 19:38:41 localhost kernel: [<ffffffff8026ee5a>] dump_stack+0x15/0x17 Sep 22 19:38:41 localhost kernel: [<ffffffff802c2ccd>] __report_bad_irq+0x38/0x87 Sep 22 19:38:41 localhost kernel: [<ffffffff802c2ef9>] note_interrupt+0x1dd/0x21f Sep 22 19:38:41 localhost kernel: [<ffffffff802c23dc>] __do_IRQ+0xd5/0x114 Sep 22 19:38:41 localhost kernel: [<ffffffff80270091>] do_IRQ+0xf8/0x107 Sep 22 19:38:41 localhost kernel: [<ffffffff80260d86>] ret_from_intr+0x0/0xf Sep 22 19:38:41 localhost kernel: DWARF2 unwinder stuck at ret_from_intr+0x0/0xf Sep 22 19:38:41 localhost kernel: Leftover inexact backtrace: Sep 22 19:38:41 localhost kernel: <IRQ> <EOI> [<ffffffff8026e643>] default_idle+0x3c/0x69 Sep 22 19:38:41 localhost kernel: [<ffffffff8026e641>] default_idle+0x3a/0x69 Sep 22 19:38:41 localhost kernel: [<ffffffff8024b6df>] cpu_idle+0xa2/0xc5 Sep 22 19:38:41 localhost kernel: [<ffffffff8027a0dd>] start_secondary+0x468/0x477 Sep 22 19:38:41 localhost kernel: Sep 22 19:38:41 localhost kernel: handlers: Sep 22 19:38:41 localhost kernel: [<ffffffff803ef55a>] (usb_hcd_irq+0x0/0x60) Sep 22 19:38:41 localhost kernel: Disabling IRQ #7 So, what is this and is there anything else to collect to figure this out? [root@localhost ~]# cat /proc/interrupts CPU0 CPU1 0: 12020 2503 XT-PIC timer 1: 54 7 XT-PIC i8042 2: 0 0 XT-PIC cascade 5: 7379 3601 XT-PIC ehci_hcd:usb2, libata, libata, libata, HDA Intel 7: 6111 19523 XT-PIC ohci_hcd:usb1 8: 0 0 XT-PIC rtc 9: 0 0 XT-PIC acpi 11: 1 0 XT-PIC libata 12: 114 5 XT-PIC i8042 113: 5 0 PCI-MSI-X eth0 121: 9 39 PCI-MSI-X eth0 129: 2779 0 PCI-MSI-X eth0 NMI: 57 42 LOC: 14485 14455 ERR: 830 MIS: 0 I have to boot this machine with noapic option or it panics. -Steve