On 22/02/18 6:35 PM, Juergen Gross wrote:
On 22/02/18 05:37, x...@randomwebstuff.com wrote:
Hi.  I have a domU.  Its params file has: vcpus = 8.  It will start with
pv, but not type="pvh".  It will not start (on pvh) with vcpus = 7 or 6
or 5.  It does start with vcpus = 4.

I diffed the xl -v create logs, no difference there on either startup.

I grabbed the domU console output for a vcpus = 5 start (attached).  It
dies right after:

[    0.007110] cpu 3 spinlock event irq 23
[    0.007336] installing Xen timer for CPU 4
Can you please post the hypervisor log ("xl dmesg")?



Regards, Peter

# xl dmesg
(XEN) parameter "cpufreq" has invalid value "xen", rc=-22!
 Xen 4.10.0
(XEN) Xen version 4.10.0 (bu...@r.com) (gcc (GCC) 4.4.7 20120313 (Red Hat 
4.4.7-18)) debug=n  Sun Jan  7 23:45:02 UTC 2018
(XEN) Latest ChangeSet: 
(XEN) Bootloader: GNU GRUB 0.97
(XEN) Command line: dom0_mem=2048M cpufreq=xen dom0_max_vcpus=2 dom0_vcpus_pin 
loglvl=info vcpu_migration_delay=1000
(XEN) Xen image load base address: 0
(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 6 MBR signatures
(XEN)  Found 6 EDD information structures
(XEN) Disabling Vixen because we are not running under Xen
(XEN) Xen-e820 RAM map:
(XEN)  0000000000000000 - 000000000009c000 (usable)
(XEN)  000000000009c000 - 00000000000a0000 (reserved)
(XEN)  00000000000cc000 - 00000000000d0000 (reserved)
(XEN)  00000000000e4000 - 0000000000100000 (reserved)
(XEN)  0000000000100000 - 00000000cff50000 (usable)
(XEN)  00000000cff50000 - 00000000cff65000 (ACPI data)
(XEN)  00000000cff65000 - 00000000cff80000 (ACPI NVS)
(XEN)  00000000cff80000 - 00000000d0000000 (reserved)
(XEN)  00000000e0000000 - 00000000f0000000 (reserved)
(XEN)  00000000fec00000 - 00000000fec10000 (reserved)
(XEN)  00000000fee00000 - 00000000fee01000 (reserved)
(XEN)  00000000ff000000 - 0000000100000000 (reserved)
(XEN)  0000000100000000 - 0000001000000000 (usable)
(XEN) New Xen image base address: 0xcf800000
(XEN) ACPI: RSDP 000F6110, 0014 (r0 PTLTD )
(XEN) ACPI: RSDT CFF5D06E, 0060 (r1 SMCI   SMCISLP2  6040000  LTP        0)
(XEN) ACPI: FACP CFF644C2, 0074 (r1 INTEL  TUMWATER  6040000 PTL         3)
(XEN) ACPI: DSDT CFF6003A, 4488 (r1  Intel BLAKFORD  6040000 MSFT  100000E)
(XEN) ACPI: APIC CFF64536, 00C8 (r1 PTLTD        APIC    6040000  LTP        0)
(XEN) ACPI: MCFG CFF645FE, 003C (r1 PTLTD    MCFG    6040000  LTP        0)
(XEN) ACPI: BOOT CFF6463A, 0028 (r1 PTLTD  $SBFTBL$  6040000  LTP        1)
(XEN) ACPI: SPCR CFF64662, 0050 (r1 PTLTD  $UCRTBL$  6040000 PTL         1)
(XEN) ACPI: SLIC CFF646B2, 0176 (r1 SMCI   SMCISLP2  6040000  LTP        0)
(XEN) ACPI: SSDT CFF5E941, 025F (r1  PmRef  Cpu0Tst     3000 INTL 20050228)
(XEN) ACPI: SSDT CFF5E89B, 00A6 (r1  PmRef  Cpu7Tst     3000 INTL 20050228)
(XEN) ACPI: SSDT CFF5E7F5, 00A6 (r1  PmRef  Cpu6Tst     3000 INTL 20050228)
(XEN) ACPI: SSDT CFF5E74F, 00A6 (r1  PmRef  Cpu5Tst     3000 INTL 20050228)
(XEN) ACPI: SSDT CFF5E6A9, 00A6 (r1  PmRef  Cpu4Tst     3000 INTL 20050228)
(XEN) ACPI: SSDT CFF5E603, 00A6 (r1  PmRef  Cpu3Tst     3000 INTL 20050228)
(XEN) ACPI: SSDT CFF5E55D, 00A6 (r1  PmRef  Cpu2Tst     3000 INTL 20050228)
(XEN) ACPI: SSDT CFF5E4B7, 00A6 (r1  PmRef  Cpu1Tst     3000 INTL 20050228)
(XEN) ACPI: SSDT CFF5D0CE, 13E9 (r1  PmRef    CpuPm     3000 INTL 20050228)
(XEN) System RAM: 64766MB (66321328kB)
(XEN) No NUMA configuration found
(XEN) Faking a node at 0000000000000000-0000001000000000
(XEN) Domain heap initialised
(XEN) CPU Vendor: Intel, Family 6 (0x6), Model 23 (0x17), Stepping 10 (raw 
(XEN) found SMP MP-table at 000f6140
(XEN) DMI present.
(XEN) Using APIC driver default
(XEN) ACPI: PM-Timer IO Port: 0x1008 (24 bits)
(XEN) ACPI: SLEEP INFO: pm1x_cnt[1:1004,1:0], pm1x_evt[1:1000,1:0]
(XEN) ACPI:             wakeup_vec[cff65fcc], vec_size[20]
(XEN) ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled)
(XEN) ACPI: LAPIC (acpi_id[0x01] lapic_id[0x04] enabled)
(XEN) ACPI: LAPIC (acpi_id[0x02] lapic_id[0x01] enabled)
(XEN) ACPI: LAPIC (acpi_id[0x03] lapic_id[0x05] enabled)
(XEN) ACPI: LAPIC (acpi_id[0x04] lapic_id[0x02] enabled)
(XEN) ACPI: LAPIC (acpi_id[0x05] lapic_id[0x06] enabled)
(XEN) ACPI: LAPIC (acpi_id[0x06] lapic_id[0x03] enabled)
(XEN) ACPI: LAPIC (acpi_id[0x07] lapic_id[0x07] enabled)
(XEN) ACPI: LAPIC_NMI (acpi_id[0x00] high edge lint[0x1])
(XEN) ACPI: LAPIC_NMI (acpi_id[0x01] high edge lint[0x1])
(XEN) ACPI: LAPIC_NMI (acpi_id[0x02] high edge lint[0x1])
(XEN) ACPI: LAPIC_NMI (acpi_id[0x03] high edge lint[0x1])
(XEN) ACPI: LAPIC_NMI (acpi_id[0x04] high edge lint[0x1])
(XEN) ACPI: LAPIC_NMI (acpi_id[0x05] high edge lint[0x1])
(XEN) ACPI: LAPIC_NMI (acpi_id[0x06] high edge lint[0x1])
(XEN) ACPI: LAPIC_NMI (acpi_id[0x07] high edge lint[0x1])
(XEN) ACPI: IOAPIC (id[0x08] address[0xfec00000] gsi_base[0])
(XEN) IOAPIC[0]: apic_id 8, version 32, address 0xfec00000, GSI 0-23
(XEN) ACPI: IOAPIC (id[0x09] address[0xfec80000] gsi_base[24])
(XEN) IOAPIC[1]: apic_id 9, version 32, address 0xfec80000, GSI 24-47
(XEN) ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 high edge)
(XEN) ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
(XEN) Enabling APIC mode:  Flat.  Using 2 I/O APICs
(XEN) ERST table was not found
(XEN) Using ACPI (MADT) for SMP configuration information
(XEN) SMP: Allowing 8 CPUs (0 hotplug CPUs)
(XEN) IRQ limits: 48 GSI, 1504 MSI/MSI-X
(XEN) xstate: size: 0x240 and states: 0x3
(XEN) CPU0: Intel machine check reporting enabled
(XEN) Using scheduler: SMP Credit Scheduler (credit)
(XEN) Platform timer is 3.579MHz ACPI PM Timer
(XEN) Detected 2500.099 MHz processor.
(XEN) Initing memory sharing.
(XEN) alt table ffff82d08041c7d8 -> ffff82d08041df54
(XEN) PCI: MCFG configuration 0: base e0000000 segment 0000 buses 00 - 0a
(XEN) PCI: MCFG area at e0000000 reserved in E820
(XEN) PCI: Using MCFG for segment 0000 bus 00-0a
(XEN) I/O virtualisation disabled
(XEN)  -> Using new ACK method
(XEN) ..TIMER: vector=0xF0 apic1=0 pin1=2 apic2=-1 pin2=-1
(XEN) Allocated console ring of 32 KiB.
(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) HVM: Hardware Assisted Paging (HAP) not detected
(XEN) Brought up 8 CPUs
(XEN) build-id: f61b02cac217640909b4c2d0f07ba50e0fe0f3d1
(XEN) CPUIDLE: disabled due to no HPET. Force enable with 'cpuidle'.
(XEN) ACPI sleep modes: S3
(XEN) VPMU: disabled
(XEN) mcheck_poll: Machine check polling timer started.
(XEN) Dom0 has maximum 432 PIRQs
(XEN) NX (Execute Disable) protection active
(XEN)  Xen  kernel: 64-bit, lsb, compat32
(XEN)  Dom0 kernel: 64-bit, PAE, lsb, paddr 0x1000000 -> 0x26e5000
(XEN)  Dom0 alloc.:   0000000fcc000000->0000000fd0000000 (500630 pages to be 
(XEN)  Init. ramdisk: 0000000ffe396000->0000000ffffffc00
(XEN)  Loaded kernel: ffffffff81000000->ffffffff826e5000
(XEN)  Init. ramdisk: 0000000000000000->0000000000000000
(XEN)  Phys-Mach map: 0000008000000000->0000008000400000
(XEN)  Start info:    ffffffff826e5000->ffffffff826e6000
(XEN)  Page tables:   ffffffff826e6000->ffffffff826fd000
(XEN)  Boot stack:    ffffffff826fd000->ffffffff826fe000
(XEN)  TOTAL:         ffffffff80000000->ffffffff82800000
(XEN)  ENTRY ADDRESS: ffffffff82387180
(XEN) Dom0 has maximum 2 VCPUs
(XEN) Initial low memory virq threshold set at 0x4000 pages.
(XEN) Scrubbing Free RAM on 1 nodes using 8 CPUs
(XEN) ................................................................done.
(XEN) Std. Loglevel: Errors, warnings and info
(XEN) Guest Loglevel: Nothing (Rate-limited: Errors and warnings)
(XEN) Xen is relinquishing VGA console.
(XEN) *** Serial input -> DOM0 (type 'CTRL-a' three times to switch input to 
(XEN) Freed 468kB init memory
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