Public bug reported:
Binary package hint: acpid
During boot, ACPI shares interrupts, even though there are plenty numbers free.
After this, network connections (I have a USB network adapter) and keyboard
spuriously hang.
Someway, interrupt 16 and 19 are also a favorite of the sound system, causing
additional overloading of there IRQs.
Neither the ACPI nor the ALSA documentation give a handle on how to manyally
set IRQs.
My BIOS does not have a menu to manually assign IRQs.
cat /proc/interrupts
CPU0 CPU1 CPU2 CPU3
0: 45 0 0 11 IO-APIC-edge timer
1: 0 0 0 2 IO-APIC-edge i8042
7: 1 0 0 0 IO-APIC-edge
8: 0 0 0 1 IO-APIC-edge rtc0
9: 0 0 0 0 IO-APIC-fasteoi acpi
12: 0 0 0 4 IO-APIC-edge i8042
16: 0 0 26803 1066 IO-APIC-fasteoi
ohci_hcd:usb3, ohci_hcd:usb4, HDA Intel
17: 0 0 1 942 IO-APIC-fasteoi
ehci_hcd:usb1
18: 0 0 0 2 IO-APIC-fasteoi
ohci_hcd:usb5, ohci_hcd:usb6
19: 0 204243 53 5838 IO-APIC-fasteoi
ehci_hcd:usb2, HDA Intel
22: 54768 0 15 3544 IO-APIC-fasteoi ahci
26: 0 0 0 0 PCI-MSI-edge eth0
27: 0 0 0 13 PCI-MSI-edge
fglrx[0]@PCI:1:0:0
NMI: 0 0 0 0 Non-maskable interrupts
LOC: 558631 399411 622830 639830 Local timer interrupts
SPU: 0 0 0 0 Spurious interrupts
PMI: 0 0 0 0 Performance monitoring
interrupts
PND: 0 0 0 0 Performance pending work
RES: 397511 319872 86301 62273 Rescheduling interrupts
CAL: 151 215 258 261 Function call interrupts
TLB: 1558 1741 2366 1775 TLB shootdowns
TRM: 0 0 0 0 Thermal event interrupts
THR: 0 0 0 0 Threshold APIC interrupts
MCE: 0 0 0 0 Machine check exceptions
MCP: 11 11 11 11 Machine check polls
ERR: 1
MIS: 0
ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: acpid 1.0.10-5ubuntu2.1
ProcVersionSignature: Ubuntu 2.6.32-32.62-generic-pae 2.6.32.38+drm33.16
Uname: Linux 2.6.32-32-generic-pae i686
NonfreeKernelModules: fglrx
Architecture: i386
Date: Tue Jun 7 13:14:48 2011
EcryptfsInUse: Yes
InstallationMedia: Ubuntu 10.04.1 LTS "Lucid Lynx" - Release i386 (20100816.1)
ProcEnviron:
PATH=(custom, user)
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: acpid
** Affects: acpid (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug i386 lucid
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https://bugs.launchpad.net/bugs/793972
Title:
interrupt IRQ shared while plenty free
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