kernel IRQ7 problem

[Steve Grubb]

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 at 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