Bi Xeon avec kernel SMP 2 CPUs detectes seulements
Un article de Wiki SOS-ADMIN.
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Le problème
Y a pas grand chose à expliquer, j'ai un bi-xeon, et je ne vois seulement que deux CPUs, alors que logiquement
- on devrais voir 4 CPUs :
- 2 CPUs Physiques
- 2 CPUs Logiques
j'ai tenté plusieurs kernel, qui fonctionne très bien avec mes P4 HT, mais pas avec mon Bi-Xeon HT :
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/proc/cpuinfo
processor : 0 vendor_id : GenuineIntel cpu family : 15 model : 4 model name : Intel(R) Xeon(TM) CPU 3.00GHz stepping : 1 cpu MHz : 3000.923 cache size : 1024 KB physical id : 0 siblings : 2 core id : 0 cpu cores : 1 fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 5 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 lm pni monitor ds_cpl cid cx16 xtpr bogomips : 6008.97 processor : 1 vendor_id : GenuineIntel cpu family : 15 model : 4 model name : Intel(R) Xeon(TM) CPU 3.00GHz stepping : 1 cpu MHz : 3000.923 cache size : 1024 KB physical id : 3 siblings : 2 core id : 3 cpu cores : 1 fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 5 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 lm pni monitor ds_cpl cid cx16 xtpr bogomips : 6000.78
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Le kernel
Linux version 2.6.14.3 (root@srv37) (gcc version 3.3.5 (Gentoo Linux 3.3.5-r1, ssp-3.3.2-3, pie-8.7.7.1)) #1 SMP Fri Dec 2 17:24:28 CET 2005
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Kernels messages
Linux version 2.6.14.3 (root@srv37) (gcc version 3.3.5 (Gentoo Linux 3.3.5-r1, ssp-3.3.2-3, pie-8.7.7.1)) #1 SMP Fri Dec 2 17:24:28 CET 2005
BIOS-provided physical RAM map:
BIOS-e820: 0000000000000000 - 000000000009cc00 (usable)
BIOS-e820: 000000000009cc00 - 00000000000a0000 (reserved)
BIOS-e820: 00000000000ea070 - 0000000000100000 (reserved)
BIOS-e820: 0000000000100000 - 00000000dffe0000 (usable)
BIOS-e820: 00000000dffe0000 - 00000000dffef000 (ACPI data)
BIOS-e820: 00000000dffef000 - 00000000dfff0000 (ACPI NVS)
BIOS-e820: 00000000dfff0000 - 00000000e0000000 (reserved)
BIOS-e820: 00000000fec00000 - 00000000fec86000 (reserved)
BIOS-e820: 00000000fee00000 - 00000000fee01000 (reserved)
BIOS-e820: 00000000ffb00000 - 0000000100000000 (reserved)
BIOS-e820: 0000000100000000 - 0000000120000000 (usable)
Warning only 4GB will be used.
Use a PAE enabled kernel.
3200MB HIGHMEM available.
896MB LOWMEM available.
found SMP MP-table at 000ff780
On node 0 totalpages: 1048576
DMA zone: 4096 pages, LIFO batch:1
Normal zone: 225280 pages, LIFO batch:31
HighMem zone: 819200 pages, LIFO batch:31
DMI 2.3 present.
Intel MultiProcessor Specification v1.4
Virtual Wire compatibility mode.
OEM ID: INTEL Product ID: LINDENHURST APIC at: 0xFEE00000
Processor #0 15:4 APIC version 20
Processor #6 15:4 APIC version 20
I/O APIC #8 Version 32 at 0xFEC00000.
I/O APIC #9 Version 32 at 0xFEC10000.
I/O APIC #10 Version 32 at 0xFEC80000.
I/O APIC #11 Version 32 at 0xFEC80400.
Enabling APIC mode: Flat. Using 4 I/O APICs
Processors: 2
Allocating PCI resources starting at e2000000 (gap: e0000000:1ec00000)
Built 1 zonelists
Kernel command line: root=/dev/sda3 acpi=off
mapped APIC to ffffd000 (fee00000)
mapped IOAPIC to ffffc000 (fec00000)
mapped IOAPIC to ffffb000 (fec10000)
mapped IOAPIC to ffffa000 (fec80000)
mapped IOAPIC to ffff9000 (fec80400)
Initializing CPU#0
PID hash table entries: 4096 (order: 12, 65536 bytes)
Detected 3000.923 MHz processor.
Using tsc for high-res timesource
Console: colour VGA+ 80x25
Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
Memory: 3629656k/4194304k available (3549k kernel code, 38992k reserved, 1005k data, 228k init, 2752384k highmem)
Checking if this processor honours the WP bit even in supervisor mode... Ok.
Calibrating delay using timer specific routine.. 6008.97 BogoMIPS (lpj=12017957)
Mount-cache hash table entries: 512
CPU: After generic identify, caps: bfebfbff 20000000 00000000 00000000 0000641d 00000000 00000000
CPU: After vendor identify, caps: bfebfbff 20000000 00000000 00000000 0000641d 00000000 00000000
monitor/mwait feature present.
using mwait in idle threads.
CPU: Trace cache: 12K uops, L1 D cache: 16K
CPU: L2 cache: 1024K
CPU: Physical Processor ID: 0
CPU: After all inits, caps: bfebfbff 20000000 00000000 00000080 0000641d 00000000 00000000
Intel machine check architecture supported.
Intel machine check reporting enabled on CPU#0.
CPU0: Intel P4/Xeon Extended MCE MSRs (24) available
CPU0: Thermal monitoring enabled
mtrr: v2.0 (20020519)
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Checking 'hlt' instruction... OK.
CPU0: Intel(R) Xeon(TM) CPU 3.00GHz stepping 01
Booting processor 1/6 eip 2000
Initializing CPU#1
Calibrating delay using timer specific routine.. 6000.78 BogoMIPS (lpj=12001563)
CPU: After generic identify, caps: bfebfbff 20000000 00000000 00000000 0000641d 00000000 00000000
CPU: After vendor identify, caps: bfebfbff 20000000 00000000 00000000 0000641d 00000000 00000000
monitor/mwait feature present.
CPU: Trace cache: 12K uops, L1 D cache: 16K
CPU: L2 cache: 1024K
CPU: Physical Processor ID: 3
CPU: After all inits, caps: bfebfbff 20000000 00000000 00000080 0000641d 00000000 00000000
Intel machine check architecture supported.
Intel machine check reporting enabled on CPU#1.
CPU1: Intel P4/Xeon Extended MCE MSRs (24) available
CPU1: Thermal monitoring enabled
CPU1: Intel(R) Xeon(TM) CPU 3.00GHz stepping 01
Total of 2 processors activated (12009.76 BogoMIPS).
ENABLING IO-APIC IRQs
..TIMER: vector=0x31 pin1=2 pin2=0
checking TSC synchronization across 2 CPUs: passed.
Brought up 2 CPUs
NET: Registered protocol family 16
PCI: PCI BIOS revision 2.10 entry at 0xf0031, last bus=6
PCI: Using configuration type 1
ACPI: Subsystem revision 20050902
ACPI: Interpreter disabled.
Linux Plug and Play Support v0.97 (c) Adam Belay
pnp: PnP ACPI: disabled
SCSI subsystem initialized
PCI: Probing PCI hardware
PCI: Probing PCI hardware (bus 00)
PCI quirk: region 0400-047f claimed by ICH4 ACPI/GPIO/TCO
PCI quirk: region 0500-053f claimed by ICH4 GPIO
PCI: Ignoring BAR0-3 of IDE controller 0000:00:1f.2
PCI: PXH quirk detected, disabling MSI for SHPC device
PCI: PXH quirk detected, disabling MSI for SHPC device
Boot video device is 0000:06:02.0
PCI: Transparent bridge - 0000:00:1e.0
PCI: Using IRQ router PIIX/ICH [8086/25a1] at 0000:00:1f.0
PCI->APIC IRQ transform: 0000:00:02.0[A] -> IRQ 16
PCI->APIC IRQ transform: 0000:00:03.0[A] -> IRQ 16
PCI->APIC IRQ transform: 0000:00:1d.0[A] -> IRQ 16
PCI->APIC IRQ transform: 0000:00:1d.1[B] -> IRQ 19
PCI->APIC IRQ transform: 0000:00:1d.7[D] -> IRQ 23
PCI->APIC IRQ transform: 0000:00:1f.2[A] -> IRQ 18
PCI->APIC IRQ transform: 0000:00:1f.3[B] -> IRQ 18
PCI->APIC IRQ transform: 0000:05:01.0[A] -> IRQ 26
PCI->APIC IRQ transform: 0000:05:02.0[A] -> IRQ 27
PCI->APIC IRQ transform: 0000:06:02.0[A] -> IRQ 17
PCI: Bridge: 0000:01:00.0
IO window: disabled.
MEM window: disabled.
PREFETCH window: disabled.
PCI: Bridge: 0000:01:00.2
IO window: disabled.
MEM window: disabled.
PREFETCH window: disabled.
PCI: Bridge: 0000:00:02.0
IO window: disabled.
MEM window: disabled.
PREFETCH window: disabled.
PCI: Bridge: 0000:00:03.0
IO window: disabled.
MEM window: disabled.
PREFETCH window: disabled.
PCI: Bridge: 0000:00:1c.0
IO window: c000-cfff
MEM window: fc900000-fc9fffff
PREFETCH window: fc700000-fc7fffff
PCI: Bridge: 0000:00:1e.0
IO window: d000-dfff
MEM window: fca00000-feafffff
PREFETCH window: e2000000-e20fffff
PCI: Setting latency timer of device 0000:00:02.0 to 64
PCI: Setting latency timer of device 0000:01:00.0 to 64
PCI: Setting latency timer of device 0000:01:00.2 to 64
PCI: Setting latency timer of device 0000:00:03.0 to 64
PCI: Setting latency timer of device 0000:00:1e.0 to 64
Machine check exception polling timer started.
audit: initializing netlink socket (disabled)
audit(1133822348.056:1): initialized
highmem bounce pool size: 64 pages
VFS: Disk quotas dquot_6.5.1
Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
JFS: nTxBlock = 8192, nTxLock = 65536
SGI XFS with large block numbers, no debug enabled
Initializing Cryptographic API
lp: driver loaded but no devices found
Linux agpgart interface v0.101 (c) Dave Jones
[drm] Initialized drm 1.0.0 20040925
PNP: No PS/2 controller found. Probing ports directly.
serio: i8042 AUX port at 0x60,0x64 irq 12
serio: i8042 KBD port at 0x60,0x64 irq 1
Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing disabled
ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered
RAMDISK driver initialized: 16 RAM disks of 8192K size 1024 blocksize
loop: loaded (max 8 devices)
Intel(R) PRO/1000 Network Driver - version 6.0.60-k2-NAPI
Copyright (c) 1999-2005 Intel Corporation.
e1000: eth0: e1000_probe: Intel(R) PRO/1000 Network Connection
e1000: eth1: e1000_probe: Intel(R) PRO/1000 Network Connection
e100: Intel(R) PRO/100 Network Driver, 3.4.14-k2-NAPI
e100: Copyright(c) 1999-2005 Intel Corporation
tun: Universal TUN/TAP device driver, 1.6
tun: (C) 1999-2004 Max Krasnyansky <maxk@qualcomm.com>
Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
Probing IDE interface ide0...
ide1: I/O resource 0x170-0x177 not free.
ide1: ports already in use, skipping probe
3ware Storage Controller device driver for Linux v1.26.02.001.
libata version 1.12 loaded.
ata_piix version 1.04
ata_piix: combined mode detected
PCI: Setting latency timer of device 0000:00:1f.2 to 64
ata1: PATA max UDMA/100 cmd 0x1F0 ctl 0x3F6 bmdma 0xFC00 irq 14
ata1: disabling port
scsi0 : ata_piix
ata2: SATA max UDMA/133 cmd 0x170 ctl 0x376 bmdma 0xFC08 irq 15
ata2: dev 0 cfg 49:2f00 82:346b 83:7d01 84:4003 85:3469 86:3c01 87:4003 88:207f
ata2: dev 0 ATA, max UDMA/133, 156301488 sectors: lba48
ata2: dev 0 configured for UDMA/133
scsi1 : ata_piix
Vendor: ATA Model: ST380817AS Rev: 3.42
Type: Direct-Access ANSI SCSI revision: 05
SCSI device sda: 156301488 512-byte hdwr sectors (80026 MB)
SCSI device sda: drive cache: write back
SCSI device sda: 156301488 512-byte hdwr sectors (80026 MB)
SCSI device sda: drive cache: write back
sda: sda1 sda2 sda3 sda4
Attached scsi disk sda at scsi1, channel 0, id 0, lun 0
mice: PS/2 mouse device common for all mice
oprofile: using NMI interrupt.
NET: Registered protocol family 2
IP route cache hash table entries: 262144 (order: 8, 1048576 bytes)
TCP established hash table entries: 524288 (order: 10, 4194304 bytes)
TCP bind hash table entries: 65536 (order: 7, 524288 bytes)
TCP: Hash tables configured (established 524288 bind 65536)
TCP reno registered
ip_conntrack version 2.3 (8192 buckets, 65536 max) - 216 bytes per conntrack
ip_tables: (C) 2000-2002 Netfilter core team
input: AT Translated Set 2 keyboard on isa0060/serio0
ipt_recent v0.3.1: Stephen Frost <sfrost@snowman.net>. http://snowman.net/projects/ipt_recent/
arp_tables: (C) 2002 David S. Miller
TCP bic registered
NET: Registered protocol family 1
NET: Registered protocol family 10
IPv6 over IPv4 tunneling driver
NET: Registered protocol family 17
Starting balanced_irq
Using IPI Shortcut mode
kjournald starting. Commit interval 5 seconds
EXT3-fs: mounted filesystem with ordered data mode.
VFS: Mounted root (ext3 filesystem) readonly.
Freeing unused kernel memory: 228k freed
Adding 1959920k swap on /dev/sda2. Priority:-1 extents:1 across:1959920k
EXT3 FS on sda3, internal journal
kjournald starting. Commit interval 5 seconds
EXT3 FS on sda4, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
e1000: eth0: e1000_watchdog_task: NIC Link is Up 100 Mbps Full Duplex
eth0: no IPv6 routers present
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Liens
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Solutions
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Hypothése ACPI
D'aprés une mailing list :
I was setting up two new servers today and noticed that they both were not recognizing the HT cpus. I enabled ACPI, rebooted, and now they show up. This appears to be a new thing in 2.6.14 as my 2.6.13 box sees the HT cpus without ACPI. Here's my working config, though you may be able to strip it down some more. # Power management options (ACPI, APM) # ACPI (Advanced Configuration and Power Interface) Support CONFIG_ACPI=y CONFIG_ACPI_AC=y CONFIG_ACPI_BATTERY=y CONFIG_ACPI_BUTTON=y CONFIG_ACPI_VIDEO=y # CONFIG_ACPI_HOTKEY is not set CONFIG_ACPI_FAN=y CONFIG_ACPI_PROCESSOR=y CONFIG_ACPI_THERMAL=y # CONFIG_ACPI_ASUS is not set # CONFIG_ACPI_IBM is not set # CONFIG_ACPI_TOSHIBA is not set CONFIG_ACPI_BLACKLIST_YEAR=0 # CONFIG_ACPI_DEBUG is not set CONFIG_ACPI_EC=y CONFIG_ACPI_POWER=y CONFIG_ACPI_SYSTEM=y
grep -i 'smp' /usr/src/linux/.config # CONFIG_X86_BIGSMP is not set CONFIG_SMP=y CONFIG_X86_FIND_SMP_CONFIG=y CONFIG_X86_SMP=y
Cette hypothése est à valider.
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Réponse à l'hypothèse
Je vais essayer ça demain, merci Elgi, mais bon sur mes Bi Xéons je désactive l'acpi (acpi=off), alors je sais pas comment je vais gérer ça...
Je vais voir...
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Expérience perso
Bonjour, je me suis penché sur le problème (le kernel n'a pas été fait par mes soins). En allant dans le BIOS de la carte mère j'ai activé une option :
ACPI APIC Support Enable
Depuis voici ce que je trouve via
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/proc/cpuinfo
processor : 0 vendor_id : GenuineIntel cpu family : 15 model : 4 model name : Intel(R) Xeon(TM) CPU 3.00GHz stepping : 1 cpu MHz : 3000.806 cache size : 1024 KB physical id : 0 siblings : 2 core id : 0 cpu cores : 1 fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 5 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 lm pni monitor ds_cpl cid cx16 xtpr bogomips : 6008.97
processor : 1 vendor_id : GenuineIntel cpu family : 15 model : 4 model name : Intel(R) Xeon(TM) CPU 3.00GHz stepping : 1 cpu MHz : 3000.806 cache size : 1024 KB physical id : 0 siblings : 2 core id : 0 cpu cores : 1 fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 5 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 lm pni monitor ds_cpl cid cx16 xtpr bogomips : 6000.74
processor : 2 vendor_id : GenuineIntel cpu family : 15 model : 4 model name : Intel(R) Xeon(TM) CPU 3.00GHz stepping : 1 cpu MHz : 3000.806 cache size : 1024 KB physical id : 3 siblings : 2 core id : 3 cpu cores : 1 fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 5 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 lm pni monitor ds_cpl cid cx16 xtpr bogomips : 6000.99
processor : 3 vendor_id : GenuineIntel cpu family : 15 model : 4 model name : Intel(R) Xeon(TM) CPU 3.00GHz stepping : 1 cpu MHz : 3000.806 cache size : 1024 KB physical id : 3 siblings : 2 core id : 3 cpu cores : 1 fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 5 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 lm pni monitor ds_cpl cid cx16 xtpr bogomips : 6000.87
A partir de là, l'option acpi=off est inutile néanmoins j'ai laissé cette option à acpi=ht (cela désactive l'acpi sauf pour l'yperthreading)
En espérant avoir apporté ma modeste contribution.
