Number of CPUs decreased after restarting Proxmox

C

CmasterG

New Member
Aug 27, 2018
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I have the following problem. I am trying out PROXMOX. When I wrote lscpu it showed me 12 cpus (2 threads per core and 6 cores). After I restarted Proxmox and typed in again lscpu it showed me 6 cpus (1 thread per core and 6 cores). Can someone help me? I thought that maybe hyperthreading in BIOS is disabled but it is enabled. I cannot explain why that changed. I have a dual boot menu with Ubuntu and Proxmox and when I start Ubuntu instead it shows me the number of cpus correctly.

Thanks a lot in advance!

Cheers
 
Hi,

can you please send the output of

Code: 
dmidecode -t processor
 
Hi,
This is the output:

Getting SMBIOS data from sysfs.
SMBIOS 3.0.0 present.

Handle 0x0068, DMI type 4, 42 bytes
Processor Information
Socket Designation: SOCKET 0
Type: Central Processor
Family: Xeon
Manufacturer: Intel
ID: F2 06 03 00 FF FB EB BF
Signature: Type 0, Family 6, Model 63, Stepping 2
Flags:
FPU (Floating-point unit on-chip)
VME (Virtual mode extension)
DE (Debugging extension)
PSE (Page size extension)
TSC (Time stamp counter)
MSR (Model specific registers)
PAE (Physical address extension)
MCE (Machine check exception)
CX8 (CMPXCHG8 instruction supported)
APIC (On-chip APIC hardware supported)
SEP (Fast system call)
MTRR (Memory type range registers)
PGE (Page global enable)
MCA (Machine check architecture)
CMOV (Conditional move instruction supported)
PAT (Page attribute table)
PSE-36 (36-bit page size extension)
CLFSH (CLFLUSH instruction supported)
DS (Debug store)
ACPI (ACPI supported)
MMX (MMX technology supported)
FXSR (FXSAVE and FXSTOR instructions supported)
SSE (Streaming SIMD extensions)
SSE2 (Streaming SIMD extensions 2)
SS (Self-snoop)
HTT (Multi-threading)
TM (Thermal monitor supported)
PBE (Pending break enabled)
Version: Intel(R) Core(TM) i7-5820K CPU @ 3.30GHz
Voltage: 0.2 V
External Clock: 100 MHz
Max Speed: 4000 MHz
Current Speed: 3300 MHz
Status: Populated, Enabled
Upgrade: Socket LGA2011-3
L1 Cache Handle: 0x0065
L2 Cache Handle: 0x0066
L3 Cache Handle: 0x0067
Serial Number: Not Specified
Asset Tag: Not Specified
Part Number: Not Specified
Core Count: 6
Core Enabled: 6
Thread Count: 12
Characteristics:
64-bit capable
Multi-Core
Hardware Thread
Execute Protection
Enhanced Virtualization
Power/Performance Control
 
dmidecode recognize all 12 cores.

so please send the output of
cat /proc/cpuinfo
 
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 63
model name : Intel(R) Core(TM) i7-5820K CPU @ 3.30GHz
stepping : 2
microcode : 0x36
cpu MHz : 3300.276
cache size : 15360 KB
physical id : 0
siblings : 6
core id : 0
cpu cores : 6
apicid : 0
initial apicid : 0
fpu : yes
fpu_exception : yes
cpuid level : 15
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscallnx pdpe1gb rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid dca sse4_1 sse4_2 x2apic movbe popcnt aes xsave avx f16c rdrand lahf_lm abm cpuid_fault invpcid_single pti intel_ppin tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid cqm xsaveopt cqm_llc cqm_occup_llc dtherm arat pln pts
bugs : cpu_meltdown spectre_v1 spectre_v2 spec_store_bypass l1tf
bogomips : 6600.44
clflush size : 64
cache_alignment : 64
address sizes : 46 bits physical, 48 bits virtual
power management:

processor : 1
vendor_id : GenuineIntel
cpu family : 6
model : 63
model name : Intel(R) Core(TM) i7-5820K CPU @ 3.30GHz
stepping : 2
microcode : 0x36
cpu MHz : 3302.203
cache size : 15360 KB
physical id : 0
siblings : 6
core id : 1
cpu cores : 6
apicid : 2
initial apicid : 2
fpu : yes
fpu_exception : yes
cpuid level : 15
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscallnx pdpe1gb rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid dca sse4_1 sse4_2 x2apic movbe popcnt aes xsave avx f16c rdrand lahf_lm abm cpuid_fault invpcid_single pti intel_ppin tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid cqm xsaveopt cqm_llc cqm_occup_llc dtherm arat pln pts
bugs : cpu_meltdown spectre_v1 spectre_v2 spec_store_bypass l1tf
bogomips : 6600.44
clflush size : 64
cache_alignment : 64
address sizes : 46 bits physical, 48 bits virtual
power management:

processor : 2
vendor_id : GenuineIntel
cpu family : 6
model : 63
model name : Intel(R) Core(TM) i7-5820K CPU @ 3.30GHz
stepping : 2
microcode : 0x36
cpu MHz : 3300.237
cache size : 15360 KB
physical id : 0
siblings : 6
core id : 2
cpu cores : 6
apicid : 4
initial apicid : 4
fpu : yes
fpu_exception : yes
cpuid level : 15
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscallnx pdpe1gb rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid dca sse4_1 sse4_2 x2apic movbe popcnt aes xsave avx f16c rdrand lahf_lm abm cpuid_fault invpcid_single pti intel_ppin tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid cqm xsaveopt cqm_llc cqm_occup_llc dtherm arat pln pts
bugs : cpu_meltdown spectre_v1 spectre_v2 spec_store_bypass l1tf
bogomips : 6600.44
clflush size : 64
cache_alignment : 64
address sizes : 46 bits physical, 48 bits virtual
power management:

processor : 3
vendor_id : GenuineIntel
cpu family : 6
model : 63
model name : Intel(R) Core(TM) i7-5820K CPU @ 3.30GHz
stepping : 2
microcode : 0x36
cpu MHz : 3300.385
cache size : 15360 KB
physical id : 0
siblings : 6
core id : 3
cpu cores : 6
apicid : 6
initial apicid : 6
fpu : yes
fpu_exception : yes
cpuid level : 15
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscallnx pdpe1gb rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid dca sse4_1 sse4_2 x2apic movbe popcnt aes xsave avx f16c rdrand lahf_lm abm cpuid_fault invpcid_single pti intel_ppin tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid cqm xsaveopt cqm_llc cqm_occup_llc dtherm arat pln pts
bugs : cpu_meltdown spectre_v1 spectre_v2 spec_store_bypass l1tf
bogomips : 6600.44
clflush size : 64
cache_alignment : 64
address sizes : 46 bits physical, 48 bits virtual
power management:

processor : 4
vendor_id : GenuineIntel
cpu family : 6
model : 63
model name : Intel(R) Core(TM) i7-5820K CPU @ 3.30GHz
stepping : 2
microcode : 0x36
cpu MHz : 3300.167
cache size : 15360 KB
physical id : 0
siblings : 6
core id : 4
cpu cores : 6
apicid : 8
initial apicid : 8
fpu : yes
fpu_exception : yes
cpuid level : 15
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscallnx pdpe1gb rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid dca sse4_1 sse4_2 x2apic movbe popcnt aes xsave avx f16c rdrand lahf_lm abm cpuid_fault invpcid_single pti intel_ppin tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid cqm xsaveopt cqm_llc cqm_occup_llc dtherm arat pln pts
bugs : cpu_meltdown spectre_v1 spectre_v2 spec_store_bypass l1tf
bogomips : 6600.44
clflush size : 64
cache_alignment : 64
address sizes : 46 bits physical, 48 bits virtual
power management:

processor : 5
vendor_id : GenuineIntel
cpu family : 6
model : 63
model name : Intel(R) Core(TM) i7-5820K CPU @ 3.30GHz
stepping : 2
microcode : 0x36
cpu MHz : 3300.694
cache size : 15360 KB
physical id : 0
siblings : 6
core id : 5
cpu cores : 6
apicid : 10
initial apicid : 10
fpu : yes
fpu_exception : yes
cpuid level : 15
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscallnx pdpe1gb rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid dca sse4_1 sse4_2 x2apic movbe popcnt aes xsave avx f16c rdrand lahf_lm abm cpuid_fault invpcid_single pti intel_ppin tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid cqm xsaveopt cqm_llc cqm_occup_llc dtherm arat pln pts
bugs : cpu_meltdown spectre_v1 spectre_v2 spec_store_bypass l1tf
bogomips : 6600.44
clflush size : 64
cache_alignment : 64
address sizes : 46 bits physical, 48 bits virtual
 
That is interesting.
Maybe a kernel problem.
Did you update your system before you rebooted?

Can you please send the output of

Code: 
pveversion -v
 
Yes I updated the system:

roxmox-ve: 5.2-2 (running kernel: 4.15.18-2-pve)
pve-manager: 5.2-7 (running version: 5.2-7/8d88e66a)
pve-kernel-4.15: 5.2-5
pve-kernel-4.15.18-2-pve: 4.15.18-20
pve-kernel-4.15.17-1-pve: 4.15.17-9
corosync: 2.4.2-pve5
criu: 2.11.1-1~bpo90
glusterfs-client: 3.8.8-1
ksm-control-daemon: 1.2-2
libjs-extjs: 6.0.1-2
libpve-access-control: 5.0-8
libpve-apiclient-perl: 2.0-5
libpve-common-perl: 5.0-38
libpve-guest-common-perl: 2.0-17
libpve-http-server-perl: 2.0-10
libpve-storage-perl: 5.0-24
libqb0: 1.0.1-1
lvm2: 2.02.168-pve6
lxc-pve: 3.0.2+pve1-1
lxcfs: 3.0.0-1
novnc-pve: 1.0.0-2
proxmox-widget-toolkit: 1.0-19
pve-cluster: 5.0-29
pve-container: 2.0-25
pve-docs: 5.2-8
pve-firewall: 3.0-13
pve-firmware: 2.0-5
pve-ha-manager: 2.0-5
pve-i18n: 1.0-6
pve-libspice-server1: 0.12.8-3
pve-qemu-kvm: 2.11.2-1
pve-xtermjs: 1.0-5
qemu-server: 5.0-32
smartmontools: 6.5+svn4324-1
spiceterm: 3.0-5
vncterm: 1.5-3
zfsutils-linux: 0.7.9-pve1~bpo9
 
Try to reboot and boot the pve-kernel-4.15.17-1-pve: 4.15.17-9 and check if this behavior is still the same?
 
Sorry but I' out of ideas.
I never heard about such problems.
 
* please post the contents of /proc/cmdline ?
* how may cpus are shown in /sys/devices/system/cpu/ ?
* anything relevant in the output of dmesg ?
 
/proc/cmdline outputs:

BOOT_IMAGE=/boot/vmlinuz-4.15.18-2-pve root=/dev/mapper/pve-root ro quiet intel_iommu=on acpi=off noapi

/sys/devices/system/cpu/ outputs:

/sys/devices/system/cpu/: Is a directory

dmesg outputs:


[ 0.000000] Linux version 4.15.18-2-pve (dietmar@evita) (gcc version 6.3.0 20170516 (Debian 6.3.0-18+deb9u1)) #1 SMP PVE 4.15.18-20 (Thu, 16 Aug 2018 11:06:35 +0200) ()
[ 0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-4.15.18-2-pve root=/dev/mapper/pve-root ro quiet intel_iommu=on acpi=off noapi
[ 0.000000] KERNEL supported cpus:
[ 0.000000] Intel GenuineIntel
[ 0.000000] AMD AuthenticAMD
[ 0.000000] Centaur CentaurHauls
[ 0.000000] x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating point registers'
[ 0.000000] x86/fpu: Supporting XSAVE feature 0x002: 'SSE registers'
[ 0.000000] x86/fpu: Supporting XSAVE feature 0x004: 'AVX registers'
[ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256
[ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format.
[ 0.000000] e820: BIOS-provided physical RAM map:
[ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009ffff] usable
[ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x000000003900bfff] usable
[ 0.000000] BIOS-e820: [mem 0x000000003900c000-0x0000000039d69fff] reserved
[ 0.000000] BIOS-e820: [mem 0x0000000039d6a000-0x000000003a020fff] usable
[ 0.000000] BIOS-e820: [mem 0x000000003a021000-0x000000003abc5fff] ACPI NVS
[ 0.000000] BIOS-e820: [mem 0x000000003abc6000-0x000000003b557fff] reserved
[ 0.000000] BIOS-e820: [mem 0x000000003b558000-0x000000003b5c0fff] type 20
[ 0.000000] BIOS-e820: [mem 0x000000003b5c1000-0x000000003b5c1fff] usable
[ 0.000000] BIOS-e820: [mem 0x000000003b5c2000-0x000000003b647fff] reserved
[ 0.000000] BIOS-e820: [mem 0x000000003b648000-0x000000003bffffff] usable
[ 0.000000] BIOS-e820: [mem 0x000000003c000000-0x000000003dffffff] reserved
[ 0.000000] BIOS-e820: [mem 0x0000000040000000-0x000000004fffffff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000fed1c000-0x00000000fed44fff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000ff000000-0x00000000ffffffff] reserved
[ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x00000004bfffffff] usable
[ 0.000000] NX (Execute Disable) protection: active
[ 0.000000] efi: EFI v2.40 by American Megatrends
[ 0.000000] efi: ESRT=0x3b554198 ACPI=0x3a82d000 ACPI 2.0=0x3a82d000 SMBIOS=0xf05e0 SMBIOS 3.0=0x3b41c000 MPS=0xfca40
[ 0.000000] secureboot: Secure boot could not be determined (mode 0)
[ 0.000000] SMBIOS 3.0.0 present.
[ 0.000000] DMI: MSI MS-7885/X99A SLI PLUS(MS-7885), BIOS 1.B0 04/10/2016
[ 0.000000] e820: update [mem 0x00000000-0x00000fff] usable ==> reserved
[ 0.000000] e820: remove [mem 0x000a0000-0x000fffff] usable
[ 0.000000] e820: last_pfn = 0x4c0000 max_arch_pfn = 0x400000000
[ 0.000000] MTRR default type: write-back
[ 0.000000] MTRR fixed ranges enabled:
[ 0.000000] 00000-9FFFF write-back
[ 0.000000] A0000-BFFFF uncachable
[ 0.000000] C0000-FFFFF write-protect
[ 0.000000] MTRR variable ranges enabled:
[ 0.000000] 0 base 000080000000 mask 3FFF80000000 uncachable
[ 0.000000] 1 base 000040000000 mask 3FFFC0000000 uncachable
[ 0.000000] 2 base 380000000000 mask 3FC000000000 uncachable
[ 0.000000] 3 base 00003F000000 mask 3FFFFF000000 uncachable
[ 0.000000] 4 base 0000C0000000 mask 3FFFE0000000 write-through
[ 0.000000] 5 base 0000E0000000 mask 3FFFF0000000 write-through
[ 0.000000] 6 base 0000F0000000 mask 3FFFFE000000 write-through
[ 0.000000] 7 disabled
[ 0.000000] 8 disabled
[ 0.000000] 9 disabled
[ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT
[ 0.000000] e820: last_pfn = 0x3c000 max_arch_pfn = 0x400000000
[ 0.000000] found SMP MP-table at [mem 0x000fcd50-0x000fcd5f] mapped at [ (ptrval)]
[ 0.000000] esrt: Reserving ESRT space from 0x000000003b554198 to 0x000000003b5541d0.
[ 0.000000] Scanning 1 areas for low memory corruption
[ 0.000000] Base memory trampoline at [ (ptrval)] 97000 size 24576
[ 0.000000] Using GB pages for direct mapping
[ 0.000000] BRK [0x404942000, 0x404942fff] PGTABLE
[ 0.000000] BRK [0x404943000, 0x404943fff] PGTABLE
[ 0.000000] BRK [0x404944000, 0x404944fff] PGTABLE
[ 0.000000] BRK [0x404945000, 0x404945fff] PGTABLE
[ 0.000000] BRK [0x404946000, 0x404946fff] PGTABLE
[ 0.000000] BRK [0x404947000, 0x404947fff] PGTABLE
[ 0.000000] BRK [0x404948000, 0x404948fff] PGTABLE
[ 0.000000] BRK [0x404949000, 0x404949fff] PGTABLE
[ 0.000000] BRK [0x40494a000, 0x40494afff] PGTABLE
[ 0.000000] RAMDISK: [mem 0x2f6c7000-0x3198afff]
[ 0.000000] No NUMA configuration found
[ 0.000000] Faking a node at [mem 0x0000000000000000-0x00000004bfffffff]
[ 0.000000] NODE_DATA(0) allocated [mem 0x4bffd5000-0x4bfffffff]
[ 0.000000] tsc: Fast TSC calibration using PIT
[ 0.000000] Zone ranges:
[ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff]
[ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff]
[ 0.000000] Normal [mem 0x0000000100000000-0x00000004bfffffff]
[ 0.000000] Device empty
[ 0.000000] Movable zone start for each node
[ 0.000000] Early memory node ranges
[ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009ffff]
[ 0.000000] node 0: [mem 0x0000000000100000-0x000000003900bfff]
[ 0.000000] node 0: [mem 0x0000000039d6a000-0x000000003a020fff]
[ 0.000000] node 0: [mem 0x000000003b5c1000-0x000000003b5c1fff]
[ 0.000000] node 0: [mem 0x000000003b648000-0x000000003bffffff]
[ 0.000000] node 0: [mem 0x0000000100000000-0x00000004bfffffff]
[ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x00000004bfffffff]
[ 0.000000] On node 0 totalpages: 4168731
[ 0.000000] DMA zone: 64 pages used for memmap
[ 0.000000] DMA zone: 26 pages reserved
[ 0.000000] DMA zone: 3999 pages, LIFO batch:0
[ 0.000000] DMA32 zone: 3634 pages used for memmap
[ 0.000000] DMA32 zone: 232572 pages, LIFO batch:31
[ 0.000000] Normal zone: 61440 pages used for memmap
[ 0.000000] Normal zone: 3932160 pages, LIFO batch:31
[ 0.000000] Reserved but unavailable: 98 pages
[ 0.000000] SFI: Simple Firmware Interface v0.81 http://simplefirmware.org
[ 0.000000] Intel MultiProcessor Specification v1.4
[ 0.000000] MPTABLE: OEM ID: A M I
[ 0.000000] MPTABLE: Product ID: ALASKA
[ 0.000000] MPTABLE: APIC at: 0xFEE00000
[ 0.000000] Processor #0 (Bootup-CPU)
[ 0.000000] Processor #2
[ 0.000000] Processor #4
[ 0.000000] Processor #6
[ 0.000000] Processor #8
[ 0.000000] Processor #10
[ 0.000000] IOAPIC[0]: apic_id 1, version 32, address 0xfec00000, GSI 0-23
[ 0.000000] IOAPIC[1]: apic_id 2, version 32, address 0xfec01000, GSI 24-47
[ 0.000000] Processors: 6
[ 0.000000] [Firmware Bug]: TSC_DEADLINE disabled due to Errata; please update microcode to version: 0x3a (or later)
[ 0.000000] smpboot: Allowing 6 CPUs, 0 hotplug CPUs
[ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff]
[ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000fffff]
[ 0.000000] PM: Registered nosave memory: [mem 0x3900c000-0x39d69fff]
[ 0.000000] PM: Registered nosave memory: [mem 0x3a021000-0x3abc5fff]
[ 0.000000] PM: Registered nosave memory: [mem 0x3abc6000-0x3b557fff]
[ 0.000000] PM: Registered nosave memory: [mem 0x3b558000-0x3b5c0fff]
[ 0.000000] PM: Registered nosave memory: [mem 0x3b5c2000-0x3b647fff]
[ 0.000000] PM: Registered nosave memory: [mem 0x3c000000-0x3dffffff]
[ 0.000000] PM: Registered nosave memory: [mem 0x3e000000-0x3fffffff]
[ 0.000000] PM: Registered nosave memory: [mem 0x40000000-0x4fffffff]
[ 0.000000] PM: Registered nosave memory: [mem 0x50000000-0xfed1bfff]
[ 0.000000] PM: Registered nosave memory: [mem 0xfed1c000-0xfed44fff]
[ 0.000000] PM: Registered nosave memory: [mem 0xfed45000-0xfeffffff]
[ 0.000000] PM: Registered nosave memory: [mem 0xff000000-0xffffffff]
[ 0.000000] e820: [mem 0x50000000-0xfed1bfff] available for PCI devices
[ 0.000000] Booting paravirtualized kernel on bare hardware
[ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645519600211568 ns
[ 0.000000] random: get_random_bytes called from start_kernel+0x99/0x511 with crng_init=0
[ 0.000000] setup_percpu: NR_CPUS:8192 nr_cpumask_bits:6 nr_cpu_ids:6 nr_node_ids:1
[ 0.000000] percpu: Embedded 46 pages/cpu @ (ptrval) s151552 r8192 d28672 u262144
[ 0.000000] pcpu-alloc: s151552 r8192 d28672 u262144 alloc=1*2097152
[ 0.000000] pcpu-alloc: [0] 0 1 2 3 4 5 - -
[ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 4103567
[ 0.000000] Policy zone: Normal
[ 0.000000] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-4.15.18-2-pve root=/dev/mapper/pve-root ro quiet intel_iommu=on acpi=off noapi
[ 0.000000] DMAR: IOMMU enabled
[ 0.000000] Calgary: detecting Calgary via BIOS EBDA area
[ 0.000000] Calgary: Unable to locate Rio Grande table in EBDA - bailing!
[ 0.000000] Memory: 16152304K/16674924K available (12300K kernel code, 2478K rwdata, 4276K rodata, 2412K init, 2416K bss, 522620K reserved, 0Kcma-reserved)
[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=6, Nodes=1
[ 0.000000] Kernel/User page tables isolation: enabled
[ 0.000000] ftrace: allocating 39675 entries in 155 pages
[ 0.000000] Hierarchical RCU implementation.
[ 0.000000] RCU restricting CPUs from NR_CPUS=8192 to nr_cpu_ids=6.
[ 0.000000] Tasks RCU enabled.
[ 0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=6
[ 0.000000] NR_IRQS: 524544, nr_irqs: 880, preallocated irqs: 16
[ 0.000000] Console: colour dummy device 80x25
[ 0.000000] console [tty0] enabled
[ 0.000000] APIC: Switch to symmetric I/O mode setup
[ 0.000000] x2apic: IRQ remapping doesn't support X2APIC mode
[ 0.000000] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1
[ 0.020000] tsc: Fast TSC calibration using PIT
[ 0.024000] tsc: Detected 3299.904 MHz processor
[ 0.024000] Calibrating delay loop (skipped), value calculated using timer frequency.. 6599.80 BogoMIPS (lpj=13199616)
[ 0.024000] pid_max: default: 32768 minimum: 301
[ 0.024000] Security Framework initialized
[ 0.024000] Yama: becoming mindful.
[ 0.024000] AppArmor: AppArmor initialized
[ 0.028079] Dentry cache hash table entries: 2097152 (order: 12, 16777216 bytes)
[ 0.029342] Inode-cache hash table entries: 1048576 (order: 11, 8388608 bytes)
[ 0.029389] Mount-cache hash table entries: 32768 (order: 6, 262144 bytes)
[ 0.029429] Mountpoint-cache hash table entries: 32768 (order: 6, 262144 bytes)
[ 0.029590] mce: CPU supports 22 MCE banks
[ 0.029603] CPU0: Thermal monitoring enabled (TM1)
[ 0.029636] process: using mwait in idle threads
[ 0.029638] Last level iTLB entries: 4KB 1024, 2MB 1024, 4MB 1024
[ 0.029639] Last level dTLB entries: 4KB 1024, 2MB 1024, 4MB 1024, 1GB 4
[ 0.029640] Spectre V2 : Mitigation: Full generic retpoline
[ 0.029641] Speculative Store Bypass: Vulnerable
[ 0.034009] Freeing SMP alternatives memory: 36K
[ 0.144008] smpboot: CPU0: Intel(R) Core(TM) i7-5820K CPU @ 3.30GHz (family: 0x6, model: 0x3f, stepping: 0x2)
[ 0.144057] Performance Events: PEBS fmt2+, Haswell events, 16-deep LBR, full-width counters, Intel PMU driver.
[ 0.144086] ... version: 3
[ 0.144086] ... bit width: 48
[ 0.144087] ... generic registers: 4
[ 0.144087] ... value mask: 0000ffffffffffff
[ 0.144088] ... max period: 00007fffffffffff
[ 0.144088] ... fixed-purpose events: 3
[ 0.144089] ... event mask: 000000070000000f
[ 0.144114] Hierarchical SRCU implementation.
[ 0.144907] NMI watchdog: Enabled. Permanently consumes one hw-PMU counter.
[ 0.144918] smp: Bringing up secondary CPUs ...
[ 0.144965] x86: Booting SMP configuration:
[ 0.144965] .... node #0, CPUs: #1 #2 #3 #4 #5
[ 0.148584] smp: Brought up 1 node, 6 CPUs
[ 0.148584] smpboot: Max logical packages: 1
[ 0.148584] smpboot: Total of 6 processors activated (39598.84 BogoMIPS)
[ 0.152425] devtmpfs: initialized
[ 0.152425] x86/mm: Memory block size: 128MB
[ 0.152875] evm: security.selinux
[ 0.152875] evm: security.SMACK64
[ 0.152876] evm: security.SMACK64EXEC
[ 0.152876] evm: security.SMACK64TRANSMUTE
[ 0.152877] evm: security.SMACK64MMAP
[ 0.152877] evm: security.apparmor
[ 0.152877] evm: security.ima
[ 0.152878] evm: security.capability
[ 0.152888] PM: Registering ACPI NVS region [mem 0x3a021000-0x3abc5fff] (12210176 bytes)
[ 0.152888] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns
[ 0.152888] futex hash table entries: 2048 (order: 5, 131072 bytes)
[ 0.152888] pinctrl core: initialized pinctrl subsystem
[ 0.152888] RTC time: 12:49:57, date: 08/28/18
[ 0.152888] NET: Registered protocol family 16
[ 0.152888] audit: initializing netlink subsys (disabled)
[ 0.152888] audit: type=2000 audit(1535460596.152:1): state=initialized audit_enabled=0 res=1
[ 0.152888] cpuidle: using governor ladder
[ 0.152888] cpuidle: using governor menu
 
* Does anything change if you upgrade to the latest bios for your hardware?
* You could also try installing the latest intel-microcode package from Debian (if it's not installed try the one in stretch - else try the one from stretch-backports) - found in the non-free section.
 
The bios is the latest one. I installed the intel-microcode, but it still doesn't change anything.
 
CmasterG said:
/proc/cmdline outputs:

BOOT_IMAGE=/boot/vmlinuz-4.15.18-2-pve root=/dev/mapper/pve-root ro quiet intel_iommu=on acpi=off noapi
Click to expand...
That's the reason.
Remove 'acpi=off' from command line and you will see all the cores.
 
Hi! Thanks for all your answers.
I set up everything from scratch and now it works, and now it also works without the acpi=off.

Cheers
 
CmasterG said:
Hi! Thanks for all your answers.
I set up everything from scratch and now it works, and now it also works without the acpi=off.

Cheers
Click to expand...
I am having a similar problem. Cannot boot without acpi=off and cannot use hyperthreading with it. Could you share what you meant by setting up everything from scratch? I have been trying to troubleshoot this problem for weeks without success. I've already tested a number of different bios settings. Any comment would be much appreciated!
 
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