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[WIll Salmon <will.salmon@xxxxxxxxx>]

This bug APPEARS to have been fixed in the latest Ubuntu trusty kernel
Linux version 3.13.0-63-generic

So instead of the error:
pci 0000:00:07.3: address space collision: [io  0x1000-0x103f] conflicts with ACPI PM1a_EVT_BLK

we now get this message :
pci 0000:00:07.3: quirk: [io  0x1000-0x103f] claimed by PIIX4 ACPI
pci 0000:00:07.3: quirk: [io  0x1040-0x104f] claimed by PIIX4 SMB

Could someone please confirm what the original "address space collision" message meant and that the latest kernel HAS fixed it
Thanks for your help
Will

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https://bugs.launchpad.net/bugs/1478539

Title:
  pci ... address space collision: conflicts with ACPI PM1a_EVT_BLK

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  On booting the latest Ubuntu Trusty kernel linux-
  image-3.13.0-58-generic (#97~precise1-Ubuntu) - I'm running Ubuntu
  12.04.5 - I get this error in /var/log/kern.log (& syslog) :

  pci 0000:00:07.3: address space collision: [io  0x1000-0x103f]
  conflicts with ACPI PM1a_EVT_BLK [??? 0x00001000-0x00001003 flags
  0x80000000]

  Does this matter?
  Looks like it COULD cause trouble. Would it ?
  To be on the safe side I've gone back to 3.13.0-57 ( #95~precise1-Ubuntu )

  Running Ubuntu 12.04.5 on VMware

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