WARNING - OLD ARCHIVES

This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
   
 
 
Xen 
 
Home Products Support Community News
 
   
 

xen-devel

Re: [Xen-devel] System time monotonicity

On Tue, Apr 03, 2007 at 03:36:48PM +0100, Ian Pratt wrote:

> Try booting with one physical (maxcpus=1 on the xen command line) CPU
> just to verify this isn't a multi-CPU issue.

Can reproduce:

[1]> 0xfffffffed5cc0120::print kthread_t t_dhrtime t_dhrtime_cpu
t_dhrtime_tsc t_dhrtime_vers
t_dhrtime = 0x509957b7c2
t_dhrtime_cpu = 0x1
t_dhrtime_tsc = 0xf6f1529888
t_dhrtime_vers = 0x132

[1]> 0x509957b7c2 - 0x000000509957039e=D
                46116

See boot log below.

> You could try switching between the PIT and HPET as the calibration
> source. 

Doesn't look like there's a flag to force PIT usage. I'll modify the source and
try it.

john

 http://www.cl.cam.ac.uk/netos/xen
 University of Cambridge Computer Laboratory

 Xen version 3.0.4-1-sun (johnlev@xxxxxxxxxxxxxxxxxxxx) (gcc version 3.4.3 
(csl-sol210-3_4-20050802)) Mon Apr  2 16:14:36 PDT 2007
 Latest ChangeSet: Mon Apr 02 16:11:18 2007 -0700 13188:3a69441c8c65

(XEN) Command line: /boot/amd64/xen.gz console=com1 com1=9600,8n1 maxcpus=1
(XEN) Physical RAM map:
(XEN)  0000000000000000 - 000000000009a000 (usable)
(XEN)  000000000009a000 - 00000000000a0000 (reserved)
(XEN)  00000000000d0000 - 0000000000100000 (reserved)
(XEN)  0000000000100000 - 00000000fbf70000 (usable)
(XEN)  00000000fbf70000 - 00000000fbf77000 (ACPI data)
(XEN)  00000000fbf77000 - 00000000fbf80000 (ACPI NVS)
(XEN)  00000000fbf80000 - 00000000fc000000 (reserved)
(XEN)  00000000fec00000 - 00000000fec00400 (reserved)
(XEN)  00000000fee00000 - 00000000fee01000 (reserved)
(XEN)  00000000fff80000 - 0000000100000000 (reserved)
(XEN) System RAM: 4031MB (4127784kB)
(XEN) ACPI: RSDP (v002 PTLTD                                 ) @ 
0x00000000000f7dc0
(XEN) ACPI: XSDT (v001 PTLTD     XSDT   0x06040000  LTP 0x00000000) @ 
0x00000000fbf74bd4
(XEN) ACPI: FADT (v003 SUN    V20z     0x06040000 PTEC 0x000f4240) @ 
0x00000000fbf76c0c
(XEN) ACPI: HPET (v001 Sun    V20z     0x06040000 PTEC 0x00000000) @ 
0x00000000fbf76d00
(XEN) ACPI: MADT (v001 PTLTD     APIC   0x06040000  LTP 0x00000000) @ 
0x00000000fbf76d38
(XEN) ACPI: SPCR (v001 PTLTD  $UCRTBL$ 0x06040000 PTL  0x00000001) @ 
0x00000000fbf76dae
(XEN) ACPI: SSDT (v001 SUN    V20z     0x06040000  LTP 0x00000001) @ 
0x00000000fbf76dfe
(XEN) ACPI: SSDT (v001 SUN    V20z     0x06040000  LTP 0x00000001) @ 
0x00000000fbf76e9b
(XEN) ACPI: SRAT (v001 SUN    V20z     0x06040000 SUN  0x00000001) @ 
0x00000000fbf76f38
(XEN) ACPI: DSDT (v001   Sun      V20z 0x06040000 MSFT 0x0100000e) @ 
0x0000000000000000
(XEN) NUMA turned off
(XEN) Faking a node at 0000000000000000-00000000fbf70000
(XEN) Domain heap initialised: DMA width 30 bits
(XEN) Xen heap: 13MB (14044kB)
(XEN) found SMP MP-table at 000f7df0
(XEN) DMI present.
(XEN) Using APIC driver default
(XEN) ACPI: Local APIC address 0xfee00000
(XEN) ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled)
(XEN) Processor #0 15:5 APIC version 16
(XEN) ACPI: LAPIC (acpi_id[0x01] lapic_id[0x01] enabled)
(XEN) Processor #1 15:5 APIC version 16
(XEN) ACPI: LAPIC_NMI (acpi_id[0x00] high edge lint[0x1])
(XEN) ACPI: LAPIC_NMI (acpi_id[0x01] high edge lint[0x1])
(XEN) ACPI: IOAPIC (id[0x02] address[0xfec00000] gsi_base[0])
(XEN) IOAPIC[0]: apic_id 2, version 17, address 0xfec00000, GSI 0-23
(XEN) ACPI: IOAPIC (id[0x03] address[0xfc800000] gsi_base[24])
(XEN) IOAPIC[1]: apic_id 3, version 17, address 0xfc800000, GSI 24-27
(XEN) ACPI: IOAPIC (id[0x04] address[0xfc801000] gsi_base[28])
(XEN) IOAPIC[2]: apic_id 4, version 17, address 0xfc801000, GSI 28-31
(XEN) ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 high edge)
(XEN) ACPI: IRQ0 used by override.
(XEN) ACPI: IRQ2 used by override.
(XEN) Enabling APIC mode:  Flat.  Using 3 I/O APICs
(XEN) ACPI: HPET id: 0x102282a0 base: 0xfed00000
(XEN) Using ACPI (MADT) for SMP configuration information
(XEN) Using scheduler: SMP Credit Scheduler (credit)
(XEN) Initializing CPU#0
(XEN) Detected 2392.196 MHz processor.
(XEN) CPU0: AMD Flush Filter disabled
(XEN) CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line)
(XEN) CPU: L2 Cache: 1024K (64 bytes/line)
(XEN) Intel machine check architecture supported.
(XEN) Intel machine check reporting enabled on CPU#0.
(XEN) CPU0: AMD Opteron(tm) Processor 250 stepping 0a
(XEN) Mapping cpu 0 to node 255
(XEN) Total of 1 processors activated.
(XEN) ENABLING IO-APIC IRQs
(XEN)  -> Using new ACK method                                                  
                                                                                
                  (XEN) ..TIMER: vector=0xF0 apic1=0 pin1=2 apic2=0 pin2=0
(XEN) Platform timer is 14.318MHz HPET
(XEN) Brought up 1 CPUs
(XEN) Machine check exception polling timer started.
(XEN) *** LOADING DOMAIN 0 ***
(XEN) PHYSICAL MEMORY ARRANGEMENT:
(XEN)  Dom0 alloc.:   000000000c000000->0000000010000000 (966649 pages to be 
allocated)
(XEN) VIRTUAL MEMORY ARRANGEMENT:
(XEN)  Loaded kernel: 0000000040000000->00000000408263a8
(XEN)  Init. ramdisk: 0000000040827000->0000000043273800
(XEN)  Phys-Mach map: 0000000043274000->00000000439f3fc8
(XEN)  Start info:    00000000439f4000->00000000439f449c
(XEN)  Page tables:   00000000439f5000->0000000043a16000
(XEN)  Boot stack:    0000000043a16000->0000000043a17000
(XEN)  TOTAL:         0000000040000000->0000000043c00000
(XEN)  ENTRY ADDRESS: 0000000040800000
(XEN) Dom0 has maximum 1 VCPUs
(XEN) Initrd len 0x2a4c800, start at 0x40827000
(XEN) Scrubbing Free RAM: .done.
(XEN) Xen trace buffers: disabled
(XEN) Std. Loglevel: All
(XEN) Guest Loglevel: All
(XEN) *** Serial input -> DOM0 (type 'CTRL-a' three times to switch input to 
Xen).
Loading kmdb...
SunOS Release 5.11 Version onnv-johnlev 64-bit


_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel

<Prev in Thread] Current Thread [Next in Thread>