Re: [Xen-devel] #599161: Xen debug patch for the "clock shifts by 50 minutes" bug.

[<Philippe.Simonet@xxxxxxxxxxxx>]

Hi Ian

i compiled  a patched hypervisor for Mauro, it is running since many days and 
the overflow occured, 
without clock jumps

> (XEN) XXX plt_overflow: plt_now=5ece12d34128 plt_wrap=5ece12d09306
> now=5ece12d16292 old_stamp=35c7c new_stamp=800366a5
> plt_stamp64=15b800366a5 plt_mask=ffffffff tsc=e3839fd23854
> tsc_stamp=e3839fcb0273

(below is the complete xm dmesg output)

did that help you ? do you need more info ? 

thanks and regards

Philippe


> -----Original Message-----
> From: Mauro [mailto:mrsanna1@xxxxxxxxx]
> Sent: Wednesday, November 07, 2012 10:12 AM
> To: Simonet Philippe, ITS-OUS-OP-IFM-NW-IPE
> Subject: Re: [Xen-devel] [Xen-users] Re: Xen 4 TSC problems
> 
> Hello, no news until now there aren't clock jumps.
> Here is xm dmesg:
> 
> xm dmesg
> (XEN) Xen version 4.0.1 (Debian 4.0.1-5.4) (ultrotter@xxxxxxxxxx) (gcc
> version 4.4.5 (Debian 4.4.5-8) ) Mon Oct 29 14:42:12 CET 2012
> (XEN) Bootloader: GRUB 1.98+20100804-14+squeeze1
> (XEN) Command line: placeholder dom0_mem=3072M loglvl=warning
> guest_loglvl=warning
> (XEN) Video information:
> (XEN)  VGA is text mode 80x25, font 8x16
> (XEN)  VBE/DDC methods: V2; EDID transfer time: 2 seconds
> (XEN) Disc information:
> (XEN)  Found 2 MBR signatures
> (XEN)  Found 2 EDD information structures
> (XEN) Xen-e820 RAM map:
> (XEN)  0000000000000000 - 000000000009f400 (usable)
> (XEN)  000000000009f400 - 00000000000a0000 (reserved)
> (XEN)  00000000000f0000 - 0000000000100000 (reserved)
> (XEN)  0000000000100000 - 00000000cfd43000 (usable)
> (XEN)  00000000cfd43000 - 00000000cfd4c000 (ACPI data)
> (XEN)  00000000cfd4c000 - 00000000cfd4d000 (usable)
> (XEN)  00000000cfd4d000 - 00000000d0000000 (reserved)
> (XEN)  00000000e0000000 - 00000000f0000000 (reserved)
> (XEN)  00000000fec00000 - 00000000fed00000 (reserved)
> (XEN)  00000000fee00000 - 00000000fee10000 (reserved)
> (XEN)  00000000ffc00000 - 0000000100000000 (reserved)
> (XEN)  0000000100000000 - 000000102ffff000 (usable)
> (XEN) ACPI: RSDP 000F4F20, 0024 (r2 HP    )
> (XEN) ACPI: XSDT CFD43900, 007C (r1 HP     ProLiant        2         162E)
> (XEN) ACPI: FACP CFD439C0, 00F4 (r3 HP     ProLiant        2         162E)
> (XEN) ACPI: DSDT CFD43AC0, 30C9 (r1 HP         DSDT        1 INTL 20030228)
> (XEN) ACPI: FACS CFD43100, 0040
> (XEN) ACPI: SPCR CFD43140, 0050 (r1 HP     SPCRRBSU        1         162E)
> (XEN) ACPI: MCFG CFD431C0, 003C (r1 HP     ProLiant        1             0)
> (XEN) ACPI: HPET CFD43200, 0038 (r1 HP     ProLiant        2         162E)
> (XEN) ACPI: FFFF CFD43240, 0064 (r2 HP     P61             2         162E)
> (XEN) ACPI: SPMI CFD432C0, 0040 (r5 HP     ProLiant        1         162E)
> (XEN) ACPI: ERST CFD43300, 01D0 (r1 HP     ProLiant        1         162E)
> (XEN) ACPI: APIC CFD43500, 0176 (r1 HP     ProLiant        2             0)
> (XEN) ACPI: FFFF CFD43680, 0176 (r1 HP     ProLiant        1         162E)
> (XEN) ACPI: BERT CFD43800, 0030 (r1 HP     ProLiant        1         162E)
> (XEN) ACPI: HEST CFD43840, 00BC (r1 HP     ProLiant        1         162E)
> (XEN) System RAM: 65532MB (67105672kB)
> (XEN) Domain heap initialised
> (XEN) Processor #0 6:15 APIC version 20
> (XEN) Processor #8 6:15 APIC version 20
> (XEN) Processor #16 6:15 APIC version 20
> (XEN) Processor #24 6:15 APIC version 20
> (XEN) Processor #1 6:15 APIC version 20
> (XEN) Processor #9 6:15 APIC version 20
> (XEN) Processor #17 6:15 APIC version 20
> (XEN) Processor #25 6:15 APIC version 20
> (XEN) Processor #2 6:15 APIC version 20
> (XEN) Processor #10 6:15 APIC version 20
> (XEN) Processor #18 6:15 APIC version 20
> (XEN) Processor #26 6:15 APIC version 20
> (XEN) Processor #3 6:15 APIC version 20
> (XEN) Processor #11 6:15 APIC version 20
> (XEN) Processor #19 6:15 APIC version 20
> (XEN) Processor #27 6:15 APIC version 20
> (XEN) IOAPIC[0]: apic_id 1, version 32, address 0xfec00000, GSI 0-23
> (XEN) IOAPIC[1]: apic_id 2, version 32, address 0xfec80000, GSI 24-47
> (XEN) IOAPIC[2]: apic_id 3, version 32, address 0xfec81000, GSI 48-71
> (XEN) IOAPIC[3]: apic_id 4, version 32, address 0xfec81800, GSI 72-95
> (XEN) Enabling APIC mode:  Phys.  Using 4 I/O APICs
> (XEN) Using scheduler: SMP Credit Scheduler (credit)
> (XEN) Detected 2400.128 MHz processor.
> (XEN) Initing memory sharing.
> (XEN) VMX: Supported advanced features:
> (XEN)  - APIC MMIO access virtualisation
> (XEN)  - APIC TPR shadow
> (XEN)  - Virtual NMI
> (XEN)  - MSR direct-access bitmap
> (XEN) HVM: ASIDs disabled.
> (XEN) HVM: VMX enabled
> (XEN) I/O virtualisation disabled
> (XEN) Total of 16 processors activated.
> (XEN) ENABLING IO-APIC IRQs
> (XEN)  -> Using new ACK method
> (XEN) checking TSC synchronization across 16 CPUs:
> (XEN) CPU#14 had 3 usecs TSC skew, fixed it up.
> (XEN) Platform timer is 14.318MHz HPET
> (XEN) Allocated console ring of 32 KiB.
> (XEN) Brought up 16 CPUs
> (XEN) *** LOADING DOMAIN 0 ***
> (XEN)  Xen  kernel: 64-bit, lsb, compat32
> (XEN)  Dom0 kernel: 64-bit, PAE, lsb, paddr 0x1000000 -> 0x1708000
> (XEN) PHYSICAL MEMORY ARRANGEMENT:
> (XEN)  Dom0 alloc.:   000000083c000000->0000000840000000 (770048 pages
> to be allocated)
> (XEN) VIRTUAL MEMORY ARRANGEMENT:
> (XEN)  Loaded kernel: ffffffff81000000->ffffffff81708000
> (XEN)  Init. ramdisk: ffffffff81708000->ffffffff81efb000
> (XEN)  Phys-Mach map: ffffffff81efb000->ffffffff824fb000
> (XEN)  Start info:    ffffffff824fb000->ffffffff824fb4b4
> (XEN)  Page tables:   ffffffff824fc000->ffffffff82513000
> (XEN)  Boot stack:    ffffffff82513000->ffffffff82514000
> (XEN)  TOTAL:         ffffffff80000000->ffffffff82800000
> (XEN)  ENTRY ADDRESS: ffffffff81531200
> (XEN) Dom0 has maximum 16 VCPUs
> (XEN) Scrubbing Free RAM:
> .....................................................................................................................
> .....................................................................................................................
> .....................................................................................................................
> .....................................................................................................................
> .....................................................................................................................
> ................................done.
> (XEN) Xen trace buffers: disabled
> (XEN) Std. Loglevel: Errors and warnings
> (XEN) Guest Loglevel: Errors and warnings
> (XEN) Xen is relinquishing VGA console.
> (XEN) *** Serial input -> DOM0 (type 'CTRL-a' three times to switch input to
> Xen)
> (XEN) Freed 176kB init memory.
> (XEN) XXX plt_overflow: plt_now=5ece12d34128 plt_wrap=5ece12d09306
> now=5ece12d16292 old_stamp=35c7c new_stamp=800366a5
> plt_stamp64=15b800366a5 plt_mask=ffffffff tsc=e3839fd23854
> tsc_stamp=e3839fcb0273
> 
> 





> -----Original Message-----
> From: xen-devel-bounces@xxxxxxxxxxxxx [mailto:xen-devel-
> bounces@xxxxxxxxxxxxx] On Behalf Of Ian Campbell
> Sent: Friday, October 26, 2012 3:00 PM
> To: xen-devel@xxxxxxxxxxxxx
> Cc: 599161@xxxxxxxxxxxxxxx
> Subject: [Xen-devel] #599161: Xen debug patch for the "clock shifts by 50
> minutes" bug.
> 
> Hi all,
> 
> I've BCC'd a number of people who have reported seeing this bug at various
> times in the past.
> 
> If you can still repro I'd appreciate it if you could give the patch in
> http://marc.info/?l=xen-devel&m=135049062216685&w=2 (also attached) a
> go and report back success/failure and the output of the debugging
> messages produced.
> 
> Thanks,
> Ian.
> 
> --
> Ian Campbell
> Current Noise: Death - Evil Dead
> 
> Executive ability is prominent in your make-up.
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