Bug #5230

illumos incorrectly detects 256 cpus as HVM guest on Xen 4.2.1

Added by MJ Anthony almost 5 years ago. Updated over 2 years ago.

Start date:
Due date:
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NOTICE: System detected 256 cpus, but only 1 cpu(s) were enabled during boot.
NOTICE: Use "boot-ncpus" parameter to enable more CPU. See eeprom(1M).

Full Console output:

module /platform/i86pc/kernel/amd64/unix: text at [0xfffffffffb800000, 0xfffffffffb96563b] data at 0xfffffffffbc00000
module /kernel/amd64/genunix: text at [0xfffffffffb965640, 0xfffffffffbbedfaf] data at 0xfffffffffbc95640
Loading kmdb...
module /kernel/misc/amd64/kmdbmod: text at [0xfffffffffbd05610, 0xfffffffffbdbc577] data at 0xfffffffffbdbc580
module /kernel/misc/amd64/ctf: text at [0xfffffffffbbedfb0, 0xfffffffffbbf8907] data at 0xfffffffffbdd85c0

Welcome to kmdb
kmdb: unable to determine terminal type: assuming `vt100'
Loaded modules: [ unix krtld genunix ]
[0]> :c
OpenIndiana Build oi_151a8 64-bit (illumos 7256a34efe)
SunOS Release 5.11 - Copyright 1983-2010 Oracle and/or its affiliates.
All rights reserved. Use is subject to license terms.
x86_feature: lgpg
x86_feature: tsc
x86_feature: msr
x86_feature: mtrr
x86_feature: pge
x86_feature: de
x86_feature: cmov
x86_feature: mmx
x86_feature: mca
x86_feature: pae
x86_feature: cv8
x86_feature: pat
x86_feature: sep
x86_feature: sse
x86_feature: sse2
x86_feature: htt
x86_feature: asysc
x86_feature: nx
x86_feature: sse3
x86_feature: cx16
x86_feature: cmp
x86_feature: tscp
x86_feature: cpuid
x86_feature: ssse3
x86_feature: sse4_1
x86_feature: sse4_2
x86_feature: clfsh
x86_feature: 64
x86_feature: pclmulqdq
x86_feature: xsave
x86_feature: rdrand
mem = 1740408K (0x6a39e000)
SMBIOS v2.4 loaded (300 bytes)root nexus = i86pc
pseudo0 at root
pseudo0 is /pseudo
scsi_vhci0 at root
scsi_vhci0 is /scsi_vhci
Reading Intel IOMMU boot options
pci0 at root: space 0 offset 0
pci0 is /pci@0,0
PCI-device: isa@1, isa0
PCI-device: pci5853,1@3, xpv0
xpv0 is /pci@0,0/pci5853,1@3
xpvd0 at root
xdf@768, xdf0
xdf0 is /xpvd/xdf@768
/xpvd/xdf@768 (xdf0) online
xdf@768: 16777216 blocksxdf@51728, xdf4
xdf4 is /xpvd/xdf@51728
/xpvd/xdf@51728 (xdf4) online
xdf@51728: 16384000 blocksxdf@5632, xdf1
xdf1 is /xpvd/xdf@5632
/xpvd/xdf@5632 (xdf1) online
xdf@5632: 1016824 blocks/xpvd/xnf@0 (xnf0) online
pseudo-device: acpippm0
acpippm0 is /pseudo/acpippm@0
pseudo-device: ppm0
ppm0 is /pseudo/ppm@0
IDE device at targ 0, lun 0 lastlun 0x0
ATA/ATAPI-7 supported, majver 0xf0 minver 0x16
PCI-device: ide@0, ata0
ata0 is /pci@0,0/pci-ide@1,1/ide@0
UltraDMA mode 5 selected
cmdk0 at ata0 target 0 lun 0
cmdk0 is /pci@0,0/pci-ide@1,1/ide@0/cmdk@0,0
root on rpool/ROOT/openindiana fstype zfs
/cpus (cpunex0) online
pseudo-device: dld0
dld0 is /pseudo/dld@0
ISA-device: asy0
asy0 is /pci@0,0/isa@1/asy@1,3f8
8042 device: keyboard@0, kb8042 # 0
kb80420 is /pci@0,0/isa@1/i8042@1,60/keyboard@0
8042 device: mouse@1, mouse8042 # 0
mouse80420 is /pci@0,0/isa@1/i8042@1,60/mouse@1
cpu0: x86 (chipid 0x0 GenuineIntel 306C3 family 6 model 60 step 3 clock 2993 MHz)
cpu0: Intel(r) Pentium(r) CPU G3220 @ 3.00GHz
NOTICE: System detected 256 cpus, but only 1 cpu(s) were enabled during boot.
NOTICE: Use "boot-ncpus" parameter to enable more CPU. See eeprom(1M).
pseudo-device: stmf_sbd0
stmf_sbd0 is /pseudo/stmf_sbd@0
pseudo-device: audio0
audio0 is /pseudo/audio@0

xm dmesg output:

 __  __            _  _    ____    _ 
 \\ \\/ /___ _ __   | || |  |___ \\  / |
  \\  // _ \\ '_ \\  | || |_   __) | | |
  /  \\  __/ | | | |__   _| / __/ _| |
 /_/\\_\\___|_| |_|    |_|(_)_____(_)_|

(XEN) Xen version 4.2.1 (root@localhost) (gcc (Ubuntu/Linaro 4.6.3-1ubuntu5) 4.6.3) Wed Oct  1 00:00:25 EST 2014
(XEN) Latest ChangeSet: unavailable
(XEN) Bootloader: GRUB 1.99-21ubuntu3.17
(XEN) Command line: placeholder
(XEN) Video information:
(XEN)  VGA is text mode 80x25, font 8x16
(XEN)  VBE/DDC methods: V2; EDID transfer time: 1 seconds
(XEN) Disc information:
(XEN)  Found 1 MBR signatures
(XEN)  Found 1 EDD information structures
(XEN) Xen-e820 RAM map:
(XEN)  0000000000000000 - 000000000009d800 (usable)
(XEN)  000000000009d800 - 00000000000a0000 (reserved)
(XEN)  00000000000e0000 - 0000000000100000 (reserved)
(XEN)  0000000000100000 - 00000000d22ba000 (usable)
(XEN)  00000000d22ba000 - 00000000d22c1000 (ACPI NVS)
(XEN)  00000000d22c1000 - 00000000d26f0000 (usable)
(XEN)  00000000d26f0000 - 00000000d2b06000 (reserved)
(XEN)  00000000d2b06000 - 00000000d7ee5000 (usable)
(XEN)  00000000d7ee5000 - 00000000d8000000 (reserved)
(XEN)  00000000d8000000 - 00000000d875f000 (usable)
(XEN)  00000000d875f000 - 00000000d8800000 (reserved)
(XEN)  00000000d8800000 - 00000000d8fae000 (usable)
(XEN)  00000000d8fae000 - 00000000d9000000 (ACPI data)
(XEN)  00000000d9000000 - 00000000da71c000 (usable)
(XEN)  00000000da71c000 - 00000000da800000 (ACPI NVS)
(XEN)  00000000da800000 - 00000000db836000 (usable)
(XEN)  00000000db836000 - 00000000dc000000 (reserved)
(XEN)  00000000dd000000 - 00000000df200000 (reserved)
(XEN)  00000000f8000000 - 00000000fc000000 (reserved)
(XEN)  00000000fec00000 - 00000000fec01000 (reserved)
(XEN)  00000000fed00000 - 00000000fed04000 (reserved)
(XEN)  00000000fed1c000 - 00000000fed20000 (reserved)
(XEN)  00000000fee00000 - 00000000fee01000 (reserved)
(XEN)  00000000ff000000 - 0000000100000000 (reserved)
(XEN)  0000000100000000 - 000000041fe00000 (usable)
(XEN) ACPI: RSDP 000F0490, 0024 (r2 DELL  )
(XEN) ACPI: XSDT D8FEE080, 007C (r1 DELL    CBX3     1072009 AMI     10013)
(XEN) ACPI: FACP D8FFA448, 010C (r5 DELL    CBX3     1072009 AMI     10013)
(XEN) ACPI Warning (tbfadt-0232): FADT (revision 5) is longer than ACPI 2.0 version, truncating length 0x10C to 0xF4 [20070126]
(XEN) ACPI: DSDT D8FEE188, C2BE (r2 DELL    CBX3          14 INTL 20091112)
(XEN) ACPI: FACS DA7FE080, 0040
(XEN) ACPI: APIC D8FFA558, 0062 (r3 DELL    CBX3     1072009 AMI     10013)
(XEN) ACPI: FPDT D8FFA5C0, 0044 (r1 DELL    CBX3     1072009 AMI     10013)
(XEN) ACPI: SLIC D8FFA608, 0176 (r3 DELL    CBX3     1072009 MSFT    10013)
(XEN) ACPI: SSDT D8FFA780, 0539 (r1  PmRef  Cpu0Ist     3000 INTL 20120711)
(XEN) ACPI: SSDT D8FFACC0, 0AD8 (r1  PmRef    CpuPm     3000 INTL 20120711)
(XEN) ACPI: SSDT D8FFB798, 01C7 (r1  PmRef LakeTiny     3000 INTL 20120711)
(XEN) ACPI: HPET D8FFB960, 0038 (r1 DELL    CBX3     1072009 AMI.        5)
(XEN) ACPI: SSDT D8FFB998, 036D (r1 SataRe SataTabl     1000 INTL 20120711)
(XEN) ACPI: MCFG D8FFBD08, 003C (r1 DELL    CBX3     1072009 MSFT       97)
(XEN) ACPI: SSDT D8FFBD48, 3528 (r1 SaSsdt  SaSsdt      3000 INTL 20091112)
(XEN) System RAM: 16302MB (16694032kB)
(XEN) Domain heap initialised
(XEN) ACPI: 32/64X FACS address mismatch in FADT - da7fe080/0000000000000000, using 32
(XEN) Processor #0 7:12 APIC version 21
(XEN) Processor #2 7:12 APIC version 21
(XEN) IOAPIC[0]: apic_id 8, version 32, address 0xfec00000, GSI 0-23
(XEN) Enabling APIC mode:  Flat.  Using 1 I/O APICs
(XEN) Table is not found!
(XEN) Using scheduler: SMP Credit Scheduler (credit)
(XEN) Detected 2993.154 MHz processor.
(XEN) Initing memory sharing.
(XEN) xstate_init: using cntxt_size: 0x240 and states: 0x3
(XEN) I/O virtualisation disabled
(XEN) Enabled directed EOI with ioapic_ack_old on!
(XEN)  -> Using old ACK method
(XEN) Platform timer is 14.318MHz HPET
(XEN) Allocated console ring of 16 KiB.
(XEN) VMX: Supported advanced features:
(XEN)  - APIC MMIO access virtualisation
(XEN)  - APIC TPR shadow
(XEN)  - Extended Page Tables (EPT)
(XEN)  - Virtual-Processor Identifiers (VPID)
(XEN)  - Virtual NMI
(XEN)  - MSR direct-access bitmap
(XEN)  - Unrestricted Guest
(XEN) HVM: ASIDs enabled.
(XEN) HVM: VMX enabled
(XEN) HVM: Hardware Assisted Paging (HAP) detected
(XEN) HVM: HAP page sizes: 4kB, 2MB, 1GB
(XEN) Brought up 2 CPUs
(XEN)  Xen  kernel: 64-bit, lsb, compat32
(XEN)  Dom0 kernel: 64-bit, PAE, lsb, paddr 0x1000000 -> 0x234a000
(XEN)  Dom0 alloc.:   0000000408000000->0000000410000000 (4049800 pages to be allocated)
(XEN)  Init. ramdisk: 000000041d1dd000->000000041fe00000
(XEN)  Loaded kernel: ffffffff81000000->ffffffff8234a000
(XEN)  Init. ramdisk: ffffffff8234a000->ffffffff84f6d000
(XEN)  Phys-Mach map: ffffffff84f6d000->ffffffff86ea8d58
(XEN)  Start info:    ffffffff86ea9000->ffffffff86ea94b4
(XEN)  Page tables:   ffffffff86eaa000->ffffffff86ee5000
(XEN)  Boot stack:    ffffffff86ee5000->ffffffff86ee6000
(XEN)  TOTAL:         ffffffff80000000->ffffffff87000000
(XEN)  ENTRY ADDRESS: ffffffff81d06210
(XEN) Dom0 has maximum 2 VCPUs
(XEN) Scrubbing Free RAM: .done.
(XEN) Initial low memory virq threshold set at 0x4000 pages.
(XEN) Std. Loglevel: Errors and warnings
(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)
(XEN) Freed 240kB init memory.
(XEN) no cpu_id for acpi_id 3
(XEN) no cpu_id for acpi_id 4

Related issues

Related to illumos gate - Bug #8079: temporarily disable apix module on Xen HVM platformClosed2017-04-17




Updated by Michal Nowak over 2 years ago

I don't see it anymore, I guess it's gone with the "temporary" disabling of apix module on Xen via #8079.


Updated by Michal Nowak over 2 years ago

  • Related to Bug #8079: temporarily disable apix module on Xen HVM platform added

Updated by Yuri Pankov over 2 years ago

  • Description updated (diff)

Updated by Yuri Pankov over 2 years ago

For that change to be related you'd have to successfully boot with apix enabled first, and that's not something possible at the moment (or was back then).


Updated by Yuri Pankov over 2 years ago

  • Description updated (diff)

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