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Re: [Xen-devel] Bad clock ticking in xen0


  • To: xen-devel@xxxxxxxxxxxxxxxxxxx
  • From: Tomas Kouba <tomas@xxxxxxxx>
  • Date: Mon, 26 Dec 2005 11:28:12 +0100
  • Delivery-date: Mon, 26 Dec 2005 10:34:04 +0000
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>

Ian Pratt wrote:

> > Please can you try putting 'lapic' on the grub xen command
line. Haing
the dom0 dmesg output would be useful too.
I have trie lapic and nlapic with no noticable difference.
Dmesg outupts for both attached.

Hmm, shame this didn't work.

I'd have been interested to see the "xm dmesg" output from the "lapic"
case.
Attached.
The lines

(XEN) Local APIC disabled by BIOS -- you can enable it with "lapic"
(XEN) Local APIC not detected. Using dummy APIC emulation

are a bit strange for me. The BIOS is quite simple PheonixBIOS with no options regarding APIC.
lapic kernel parameter was *surely* used

--
Tomas Kouba

 __  __            _____  ___   ___  
 \ \/ /___ _ __   |___ / / _ \ / _ \ 
  \  // _ \ '_ \    |_ \| | | | | | |
  /  \  __/ | | |  ___) | |_| | |_| |
 /_/\_\___|_| |_| |____(_)___(_)___/ 
                                     
 http://www.cl.cam.ac.uk/netos/xen
 University of Cambridge Computer Laboratory

 Xen version 3.0.0 (rread@xxxxxxxxxxxxxxxxxxxx) (gcc version 4.0.1 20050727 
(Red Hat 4.0.1-5)) Tue Dec 13 15:49:56 PST 2005
 Latest ChangeSet: unavailable 

(XEN) Physical RAM map:
(XEN)  0000000000000000 - 000000000009e800 (usable)
(XEN)  000000000009e800 - 00000000000a0000 (reserved)
(XEN)  00000000000c0000 - 00000000000cc000 (reserved)
(XEN)  00000000000dc000 - 0000000000100000 (reserved)
(XEN)  0000000000100000 - 000000000eef0000 (usable)
(XEN)  000000000eef0000 - 000000000eeff000 (ACPI data)
(XEN)  000000000eeff000 - 000000000ef00000 (ACPI NVS)
(XEN)  000000000ef00000 - 000000000f000000 (usable)
(XEN)  00000000fff80000 - 0000000100000000 (reserved)
(XEN) System RAM: 239MB (245304kB)
(XEN) Xen heap: 10MB (10652kB)
(XEN) PAE disabled.
(XEN) DMI 2.3 present.
(XEN) Using APIC driver default
(XEN) ACPI: RSDP (v000 PTLTD                                 ) @ 0x000f6dd0
(XEN) ACPI: RSDT (v001 PTLTD    RSDT   0x06040000  LTP 0x00000000) @ 0x0eefb63b
(XEN) ACPI: FADT (v001 COMPAQ  EAGLES  0x06040000 PTL_ 0x000f4240) @ 0x0eefeeb6
(XEN) ACPI: SSDT (v001 PTLTD  POWERNOW 0x06040000  LTP 0x00000001) @ 0x0eefef2a
(XEN) ACPI: DSDT (v001 COMAPQ   EAGLES 0x06040000 MSFT 0x0100000d) @ 0x00000000
(XEN) Local APIC disabled by BIOS -- you can enable it with "lapic"
(XEN) Initializing CPU#0
(XEN) Detected 996.577 MHz processor.
(XEN) Using scheduler: Simple EDF Scheduler (sedf)
(XEN) CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line)
(XEN) CPU: L2 Cache: 64K (64 bytes/line)
(XEN) CPU0: AMD mobile AMD Duron(tm) Processor stepping 01
(XEN) SMP motherboard not detected.
(XEN) Local APIC not detected. Using dummy APIC emulation.
(XEN) Platform timer is 1.193MHz PIT
(XEN) Brought up 1 CPUs
(XEN) mtrr: v2.0 (20020519)
(XEN) *** LOADING DOMAIN 0 ***
(XEN) Xen-ELF header found: 
'GUEST_OS=linux,GUEST_VER=2.6,XEN_VER=xen-3.0,VIRT_BASE=0xC0000000,PAE=no,LOADER=generic'
(XEN) PHYSICAL MEMORY ARRANGEMENT:
(XEN)  Dom0 alloc.:   01800000->02000000 (22528 pages to be allocated)
(XEN) VIRTUAL MEMORY ARRANGEMENT:
(XEN)  Loaded kernel: c0100000->c0600924
(XEN)  Init. ramdisk: c0601000->c0601000
(XEN)  Phys-Mach map: c0601000->c0619000
(XEN)  Start info:    c0619000->c061a000
(XEN)  Page tables:   c061a000->c061d000
(XEN)  Boot stack:    c061d000->c061e000
(XEN)  TOTAL:         c0000000->c0800000
(XEN)  ENTRY ADDRESS: c0100000
(XEN) Scrubbing Free RAM: ...done.
(XEN) Xen trace buffers: disabled
(XEN) *** Serial input -> DOM0 (type 'CTRL-a' three times to switch input to 
Xen).

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