[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[Xen-devel] FW: ACPI HPET Timer - Works on standard Kernel - Broken on Xen Kernel

  • To: <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • From: "Robert Dunkley" <Robert@xxxxxxxxx>
  • Date: Thu, 28 Aug 2008 08:28:04 +0100
  • Delivery-date: Thu, 28 Aug 2008 00:29:38 -0700
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
  • Thread-index: AckIUCEANSi/Ivp5TbGnCQlmPiJOAwAjwOGg
  • Thread-topic: ACPI HPET Timer - Works on standard Kernel - Broken on Xen Kernel

Sorry to have to send this to the dev list but no one in the user list seems to know the answer and Google turned up nothing at all.


I have an error in my dmesg system log about hpet not correctly enabling:

hpet_acpi_add: no address or irqs in _CRS


The same kernel without Xen enables it fine:

hpet0: at MMIO 0xfed00000 (virtual 0xffffffffff5fe000), IRQs 2, 8, 31

hpet0: 3 32-bit timers, 25000000 Hz

hpet_resources: 0xfed00000 is busy


Do I have to pass an additional boot option? (ACPI is already enabled) or is there something wrong with my Xen Kernel build? Anyone have any idea why the Xen kernel would break hpet support? (I’m using default Centos 5.2 kernel and 3.2.1 stable)






The SAQ Group

Registered Office: 18 Chapel Street, Petersfield, Hampshire GU32 3DZ
SEMTEC Limited Trading as SAQ is Registered in England & Wales
Company Number: 06481952


http://www.saqnet.co.uk AS29219

SAQ Group Delivers high quality, honestly priced communication and I.T. services to UK Business.

DSL : Domains : Email : Hosting : CoLo : Servers : Racks : Transit : Backups : Managed Networks : Remote Support.


Find us in http://www.thebestof.co.uk/petersfield


Xen-devel mailing list



Lists.xenproject.org is hosted with RackSpace, monitoring our
servers 24x7x365 and backed by RackSpace's Fanatical Support®.