Public bug reported:
Several interrupts are not labeled in /proc/interrupts on Linux
3.0.0-11-generic x86_64. The contents of /proc/interrupts:
cat /proc/interrupts
CPU0 CPU1 CPU2 CPU3 CPU4 CPU5
CPU6 CPU7
0: 29 0 0 0 0 0
0 0 IR-IO-APIC-edge timer
1: 2 0 0 0 0 0
0 0 IR-IO-APIC-edge i8042
8: 1 0 0 0 0 0
0 0 IR-IO-APIC-edge rtc0
9: 0 0 0 0 0 0
0 0 IR-IO-APIC-fasteoi acpi
12: 4 0 0 0 0 0
0 0 IR-IO-APIC-edge i8042
16: 913 0 0 0 0 0
0 0 IR-IO-APIC-fasteoi ehci_hcd:usb1, mei
17: 2 0 0 0 0 0
0 0 IR-IO-APIC-fasteoi
18: 0 0 0 0 0 0
0 0 IR-IO-APIC-fasteoi ata_generic
22: 87478 7216 0 0 0 0
0 0 IR-IO-APIC-fasteoi cx88[0], cx88[0], cx88[0]
23: 15851 0 2070 0 0 0
0 0 IR-IO-APIC-fasteoi ehci_hcd:usb2
40: 0 0 0 0 0 0
0 0 DMAR_MSI-edge dmar0
41: 0 0 0 0 0 0
0 0 IR-PCI-MSI-edge PCIe PME
42: 0 0 0 0 0 0
0 0 IR-PCI-MSI-edge PCIe PME
43: 0 0 0 0 0 0
0 0 IR-PCI-MSI-edge PCIe PME
44: 0 0 0 0 0 0
0 0 IR-PCI-MSI-edge PCIe PME
45: 173186 0 0 0 0 0
0 0 IR-PCI-MSI-edge ahci
46: 195 0 0 0 6464 0
0 0 IR-PCI-MSI-edge eth0-rx-0
47: 5190 0 0 0 0 0
0 0 IR-PCI-MSI-edge eth0-tx-0
48: 4 0 0 0 0 0
0 0 IR-PCI-MSI-edge eth0
49: 44 0 0 0 0 0
0 0 IR-PCI-MSI-edge
50: 48 0 0 0 0 0
0 0 IR-PCI-MSI-edge
51: 2 0 0 0 0 0
0 0 IR-PCI-MSI-edge
52: 9821 17016 0 0 0 0
0 0 IR-PCI-MSI-edge nvidia
NMI: 0 0 0 0 0 0
0 0 Non-maskable interrupts
LOC: 120979 160394 125421 112321 152494 159156
134019 125616 Local timer interrupts
SPU: 0 0 0 0 0 0
0 0 Spurious interrupts
PMI: 0 0 0 0 0 0
0 0 Performance monitoring interrupts
IWI: 138 49 46 44 53 47
47 46 IRQ work interrupts
RES: 236652 272646 187238 167574 262028 206403
160229 156928 Rescheduling interrupts
CAL: 9034 13966 16499 17096 14150 17441
17221 16621 Function call interrupts
TLB: 31160 24119 14888 17969 24074 22808
22229 22443 TLB shootdowns
TRM: 0 0 0 0 0 0
0 0 Thermal event interrupts
THR: 0 0 0 0 0 0
0 0 Threshold APIC interrupts
MCE: 0 0 0 0 0 0
0 0 Machine check exceptions
MCP: 4 4 4 4 4 4
4 4 Machine check polls
ERR: 0
MIS: 0
>From dmesg, I can tell that 17 is ttyS4:
dmesg | grep 17 | grep irq\ =
[ 2.619635] 0000:00:16.3: ttyS4 at I/O 0xf060 (irq = 17) is a 16550A
And that 49-51 are from my second e1000 NIC:
dmesg | grep e1000 | grep irq | egrep 49\|50\|51
[ 6.032088] e1000e 0000:04:00.0: irq 49 for MSI/MSI-X
[ 6.032094] e1000e 0000:04:00.0: irq 50 for MSI/MSI-X
[ 6.032099] e1000e 0000:04:00.0: irq 51 for MSI/MSI-X
ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: linux-image-generic 3.0.0.11.12
ProcVersionSignature: Ubuntu 3.0.0-11.18-generic 3.0.4
Uname: Linux 3.0.0-11-generic x86_64
NonfreeKernelModules: zfs zcommon znvpair zavl zunicode nvidia
AcpiTables: Error: command ['kdesudo', '--desktop',
'/usr/share/applications/apport-kde-mime.desktop', '--',
'/usr/share/apport/dump_acpi_tables.py'] failed with exit code 1: Illegal
option -H
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
AplayDevices:
**** List of PLAYBACK Hardware Devices ****
card 1: Set [C-Media USB Headphone Set], device 0: USB Audio [USB Audio]
Subdevices: 1/1
Subdevice #0: subdevice #0
ApportVersion: 1.23-0ubuntu1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC2: gallatin 3177 F.... pulseaudio
/dev/snd/controlC1: gallatin 3177 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card1.Amixer.info:
Card hw:1 'Set'/'C-Media USB Headphone Set at usb-0000:00:1d.0-1.2, full speed'
Mixer name : 'USB Mixer'
Components : 'USB0d8c:000c'
Controls : 7
Simple ctrls : 3
Card2.Amixer.info:
Card hw:2 'CX8801'/'Conexant CX8801 at 0xf8000000'
Mixer name : 'CX88'
Components : ''
Controls : 3
Simple ctrls : 2
Date: Thu Sep 15 08:38:48 2011
HibernationDevice: RESUME=UUID=af8704e9-0f0b-4c01-b382-d94247d3802d
InstallationMedia: Kubuntu 11.10 "Oneiric Ocelot" - Beta amd64 (20110901)
MachineType: Supermicro X9SCI/X9SCA
ProcEnviron:
PATH=(custom, user)
LANG=C
SHELL=/bin/tcsh
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.0.0-11-generic
root=UUID=09dd152c-ceb0-4e7b-8f1b-d8855ccf03d5 ro nosplash
RelatedPackageVersions:
linux-restricted-modules-3.0.0-11-generic N/A
linux-backports-modules-3.0.0-11-generic N/A
linux-firmware 1.60
RfKill:
SourcePackage: linux
StagingDrivers: mei
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/30/2011
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 4.6.4
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: X9SCI/X9SCA
dmi.board.vendor: Supermicro
dmi.board.version: 1.01
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: Supermicro
dmi.chassis.version: 0123456789
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvr4.6.4:bd06/30/2011:svnSupermicro:pnX9SCI/X9SCA:pvr0123456789:rvnSupermicro:rnX9SCI/X9SCA:rvr1.01:cvnSupermicro:ct3:cvr0123456789:
dmi.product.name: X9SCI/X9SCA
dmi.product.version: 0123456789
dmi.sys.vendor: Supermicro
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug oneiric staging
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https://bugs.launchpad.net/bugs/850878
Title:
Some interrupts are not labeled in /proc/interrupts
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