[Xen-devel] (XEN) HVM_PIT:missed ticks < 0

["Ed Smith" <esmith@xxxxxxxxxxxxxxx>]

After yesterday's checkins to unstable, I can no longer boot an fully virtualized guest (Intel VT).  Here is an attempt at booting a RHEL4U2-32bit uniprocessor kernel guest.  The flood of '(XEN) HVM_PIT:missed ticks < 0' messages actually occur before getting to the guest's grub menu so the guest should not matter.


(XEN) (GUEST: 5) HVM Loader
(XEN) (GUEST: 5) Loading ROMBIOS ...
(XEN) (GUEST: 5) Loading Cirrus VGABIOS ...
(XEN) (GUEST: 5) Loading VMXAssist ...
(XEN) (GUEST: 5) VMX go ...
(XEN) (GUEST: 5) VMXAssist (Apr 23 2006)
(XEN) (GUEST: 5) Memory size 256 MB
(XEN) (GUEST: 5) E820 map:
(XEN) (GUEST: 5) 0000000000000000 - 000000000009F800 (RAM)
(XEN) (GUEST: 5) 000000000009F800 - 00000000000A0000 (Reserved)
(XEN) (GUEST: 5) 00000000000A0000 - 00000000000C0000 (Type 16)
(XEN) (GUEST: 5) 00000000000F0000 - 0000000000100000 (Reserved)
(XEN) (GUEST: 5) 0000000000100000 - 000000000FFFE000 (RAM)
(XEN) (GUEST: 5) 000000000FFFE000 - 000000000FFFF000 (Type 18)
(XEN) (GUEST: 5) 000000000FFFF000 - 0000000010000000 (Type 17)
(XEN) (GUEST: 5) 0000000010000000 - 0000000010003000 (ACPI NVS)
(XEN) (GUEST: 5) 0000000010003000 - 000000001000D000 (ACPI Data)
(XEN) (GUEST: 5) 00000000FEC00000 - 0000000100000000 (Type 16)
(XEN) (GUEST: 5)
(XEN) (GUEST: 5) Start BIOS ...
(XEN) (GUEST: 5) Starting emulated 16-bit real-mode: ip=F000:FFF0
(XEN) (GUEST: 5)  rombios.c,v 1.138 2005/05/07 15:55:26 vruppert Exp $
(XEN) (GUEST: 5) Remapping master: ICW2 0x8 -> 0x20
(XEN) (GUEST: 5) Remapping slave: ICW2 0x70 -> 0x28
(XEN) (GUEST: 5) VGABios $Id: vgabios.c,v 1.61 2005/05/24 16:50:50 vruppert Exp $
(XEN) (GUEST: 5) HVMAssist BIOS, 8 cpus, $Revision: 1.138 $ $Date: 2005/05/07 15:55:26 $
(XEN) (GUEST: 5)
(XEN) HVM_PIT:missed ticks < 0
(XEN) HVM_PIT:missed ticks < 0
(XEN) HVM_PIT:missed ticks < 0

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