Stray IRQ 7 on 5.4-STABLE

Anthony M. Agelastos iqgrande at
Mon Jun 6 23:36:07 GMT 2005

Hello all,

I am encountering the following message on my root window:

Jun 6 14:18:53 ast kernel: stray irq7
Jun 6 14:43:42 ast kernel: stray irq7
Jun 6 18:18:47 ast kernel: stray irq7
Jun 6 19:29:47 ast kernel: stray irq7

I have noticed these stray irq messages periodically, but cannot isolate 
what is causing them (the only mention of irq7 in dmesg relates to my 
printer (parallel printer port)). In the past, they popped up quickly 
prompting the message that there were too many stray irq7 and that it 
wouldn't log them anymore (I forget the exact wording). This appears to 
be a new problem (it hasn't happened that I know of since one of the 
last 2 times I have re-built world (I tend to update thrice every two 
months)). In case it is needed, I am running CUPS and have the 
appropriate (or so I've been told) options in my make.conf file (see it 
below). Does anyone have any ideas? I did some searching and came up 
with nada. Below I show my uname as well as dmesg and make.conf. Any 
help would be greatly appreciated. Thanks.

 > uname -a
FreeBSD 5.4-STABLE FreeBSD 5.4-STABLE #0: Sun May 29 
10:30:27 EDT 2005     root at  i386
(IQKERNEL is GENERIC + SSE (movie playback) + i686 optimized)

 > cat make.conf
CFLAGS= -O -pipe

# added by use.perl 2005-03-24 18:07:16

 > dmesg
Copyright (c) 1992-2005 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
        The Regents of the University of California. All rights reserved.
FreeBSD 5.4-STABLE #0: Sun May 29 10:30:27 EDT 2005
    root at
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: Pentium III/Pentium III Xeon/Celeron (448.80-MHz 686-class CPU)
  Origin = "GenuineIntel"  Id = 0x673  Stepping = 3
real memory  = 335413248 (319 MB)
avail memory = 314388480 (299 MB)
npx0: <math processor> on motherboard
npx0: INT 16 interface
acpi0: <INTEL SR44010A> on motherboard
acpi0: Power Button (fixed)
Timecounter "ACPI-safe" frequency 3579545 Hz quality 1000
acpi_timer0: <24-bit timer at 3.579545MHz> port 0x408-0x40b on acpi0
cpu0: <ACPI CPU (3 Cx states)> on acpi0
acpi_throttle0: <ACPI CPU Throttling> on cpu0
pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0
pci0: <ACPI PCI bus> on pcib0
pcib1: <PCI-PCI bridge> at device 1.0 on pci0
pci1: <PCI bus> on pcib1
nvidia0: <RIVA TNT> mem 0xf3000000-0xf3ffffff,0xfd000000-0xfdffffff irq 
11 at device 0.0 on pci1
isab0: <PCI-ISA bridge> at device 7.0 on pci0
isa0: <ISA bus> on isab0
atapci0: <Intel PIIX4 UDMA33 controller> port 
0xffa0-0xffaf,0x376,0x170-0x177,0x3f6,0x1f0-0x1f7 at device 7.1 on pci0
ata0: channel #0 on atapci0
ata1: channel #1 on atapci0
uhci0: <Intel 82371AB/EB (PIIX4) USB controller> port 0xef80-0xef9f irq 
10 at device 7.2 on pci0
usb0: <Intel 82371AB/EB (PIIX4) USB controller> on uhci0
usb0: USB revision 1.0
uhub0: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 2 ports with 2 removable, self powered
pci0: <bridge> at device 7.3 (no driver attached)
pcm0: <AudioPCI ES1373-B> port 0xef00-0xef3f irq 9 at device 12.0 on pci0
pcm0: <Cirrus Logic CS4297 AC97 Codec>
rl0: <RealTek 8139 10/100BaseTX> port 0xe800-0xe8ff mem 
0xfebffc00-0xfebffcff irq 11 at device 13.0 on pci0
miibus0: <MII bus> on rl0
rlphy0: <RealTek internal media interface> on miibus0
rlphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
rl0: Ethernet address: 00:02:e3:0f:8b:a0
pci0: <simple comms> at device 14.0 (no driver attached)
acpi_button0: <Sleep Button> on acpi0
atkbdc0: <Keyboard controller (i8042)> port 0x64,0x60 irq 1 on acpi0
atkbd0: <AT Keyboard> irq 1 on atkbdc0
kbd0 at atkbd0
psm0: <PS/2 Mouse> irq 12 on atkbdc0
psm0: model MouseMan+, device ID 0
sio0: <16550A-compatible COM port> port 0x3f8-0x3ff irq 4 flags 0x10 on 
sio0: type 16550A
ppc0: <ECP parallel printer port> port 0x778-0x77b,0x378-0x37f irq 7 drq 
3 flags 0x28 on acpi0
ppc0: SMC-like chipset (ECP-only) in ECP mode
ppc0: FIFO with 16/16/8 bytes threshold
ppbus0: <Parallel port bus> on ppc0
ppbus0: IEEE1284 device found /NIBBLE/ECP
Probing for PnP devices on ppbus0:
plip0: <PLIP network interface> on ppbus0
lpt0: <Printer> on ppbus0
lpt0: Polled port
ppi0: <Parallel I/O> on ppbus0
orm0: <ISA Option ROM> at iomem 0xc0000-0xc7fff on isa0
pmtimer0 on isa0
sc0: <System console> at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=0x300>
sio1: configured irq 3 not in bitmap of probed irqs 0
sio1: port may not be enabled
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
uscanner0: Hewlett-Packard HP ScanJet 3300C, rev 1.00/0.00, addr 2
Timecounter "TSC" frequency 448802339 Hz quality 800
Timecounters tick every 10.000 msec
ad0: 8063MB <FUJITSU MPD3084AT/DD-03-47> [16383/16/63] at ata0-master UDMA33
acd0: CDRW <CREATIVE CD-RW RW4224E/1.36> at ata0-slave PIO4
acd1: DVDROM <HITACHI DVD-ROM GD-2500/0101> at ata1-master PIO4
ad3: 29311MB <Maxtor 5T030H3/TAH71DP0> [59554/16/63] at ata1-slave UDMA33
Mounting root from ufs:/dev/ad0s1a
stray irq7
stray irq7
stray irq7
stray irq7

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