[Bug 793972] Re: interrupt IRQ shared while plenty free

[jan]

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https://bugs.launchpad.net/bugs/793972

Title:
  interrupt IRQ shared while plenty free

Status in “acpid” package in Ubuntu:
  New

Bug description:
  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