[CentOS] Message from syslogd at localhost ... kernel:Disabling IRQ #17

Tue Aug 27 15:47:18 UTC 2013
Michael Hennebry <hennebry at web.cs.ndsu.nodak.edu>

" Message from syslogd at localhost at Aug 27 08:57:53 ...
  kernel:Disabling IRQ #17" is the message I got
on all my terminal windows at the time indicated.

What is it complaining about?
What should I do about it?

I got some information from dmesg.
It mentions IRQ 17, but the only error is
from before the most recent hibernation.

Here are some excerpts, in order from dmesg:

SELinux: initialized (dev proc, type proc), uses genfs_contexts
hda-intel: IRQ timing workaround is activated for card #1. Suggest a bigger 
fuse init (API version 7.13)
[Hardware Error]: Machine check events logged
SELinux: initialized (dev sdc1, type vfat), uses genfs_contexts
PM: Syncing filesystems ... done.

ata_piix 0000:00:1f.1: PCI INT A disabled
ACPI: Preparing to enter system sleep state S4
PM: Saving platform NVS memory
Disabling non-boot CPUs ...
CPU 1 is now offline
SMP alternatives: switching to UP code
PM: Creating hibernation image:
PM: Need to copy 141814 pages
PM: Restoring platform NVS memory
microcode: CPU0 updated to revision 0x2e, date = 2004-08-11
Force enabled HPET at resume
Enabling non-boot CPUs ...
SMP alternatives: switching to SMP code
Booting Node 0 Processor 1 APIC 0x1
Initializing CPU#1
microcode: CPU1 updated to revision 0x2e, date = 2004-08-11
CPU1 is up
ACPI: Waking up from system sleep state S4
ata_piix 0000:00:1f.1: restoring config space at offset 0x1 (was 0x2880003, 
writing 0x2880007)

Restarting tasks ... done.
psmouse serio1: ID: 10 00 64
e100 0000:02:08.0: eth0: NIC Link is Up 100 Mbps Full Duplex
ADDRCONF(NETDEV_UP): eth0: link is not ready
ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
eth0: no IPv6 routers present
irq 17: nobody cared (try booting with the "irqpoll" option)
Pid: 0, comm: swapper Not tainted 2.6.32-358.14.1.el6.i686 #1
Call Trace:
  [<c04bb8d4>] ? __report_bad_irq+0x24/0x90
  [<c04bba90>] ? note_interrupt+0x150/0x190
  [<c04bc0eb>] ? handle_fasteoi_irq+0x9b/0xc0
  [<c040b9f2>] ? handle_irq+0x32/0x60
  [<c045fe95>] ? irq_exit+0x35/0x70
  [<c040b027>] ? do_IRQ+0x47/0xc0
  [<c0409f10>] ? common_interrupt+0x30/0x38
  [<f80b00d8>] ? radeon_connector_set_property+0x1a8/0x2a0 [radeon]
  [<f80d2f80>] ? r600_irq_process+0x140/0x6f0 [radeon]
  [<f80b9042>] ? radeon_driver_irq_handler_kms+0x12/0x20 [radeon]
  [<c04b9f25>] ? handle_IRQ_event+0x45/0x140
  [<c04bc0b5>] ? handle_fasteoi_irq+0x65/0xc0
  [<c040b9f2>] ? handle_irq+0x32/0x60
  [<c040b027>] ? do_IRQ+0x47/0xc0
  [<c0409f10>] ? common_interrupt+0x30/0x38
  [<c0434f52>] ? native_safe_halt+0x2/0x10
  [<c041121d>] ? default_idle+0x4d/0xc0
  [<c0408884>] ? cpu_idle+0x94/0xd0
  [<c0ac39fc>] ? start_kernel+0x3b0/0x3b5
  [<c0ac348a>] ? unknown_bootoption+0x0/0x190
[<f849b2e0>] (snd_intel8x0_interrupt+0x0/0x250 [snd_intel8x0])
[<f915c7f0>] (azx_interrupt+0x0/0x1a0 [snd_hda_intel])
Disabling IRQ #17

google has not helped much.
I note that https://bugzilla.redhat.com/show_bug.cgi?id=381331
was closed with a WONTFIX.

I also grepped dmesg for IRQ and 17.
There were four distinct messages:
i801_smbus 0000:00:1f.3: PCI INT B -> GSI 17 (level, low) -> IRQ 17
Intel ICH 0000:00:1f.5: PCI INT B -> GSI 17 (level, low) -> IRQ 17
snd_hda_intel 0000:01:00.1: PCI INT B -> GSI 17 (level, low) -> IRQ 17
Disabling IRQ #17
The first and last were there once, first and last.
The others alternated, eleven times each.

I think I kow what snd_hda_intel and Intel ICH are, but it doesn't help
I'm really fuzzy on i801_smbus.

What is syslogd complaining about and what should I do about it?

Michael   hennebry at web.cs.ndsu.NoDak.edu
"On Monday, I'm gonna have to tell my kindergarten class,
whom I teach not to run with scissors,
that my fiance ran me through with a broadsword."  --  Lily