Re: How to get the 2nd CPU to work?
I think, top displays processes and not cpus..
Start some process on second cpu and try top again..
-ishwar
On Wed, 6 Oct 2004, Rishi wrote:
> Hi
>
> I just installed debian (sarge) on a Dual P-II system. The kernel that was
> installed was: kernel-image-2.6.5-1-386
>
> Then I installed kernel-image-2.6.8-1-686-smp using apt-get and added it using
> grub....
>
> After re-booting... the top program shows only one CPU.
>
> But the output of dmesg and /proc/cpuinfo appears to have recognized the 2nd
> CPU. Any ideas if
> (a) the 2nd CPU is being used OR
> (b) it's not being used
>
> If it's not being used, any tips on what I should do to get Linux to use the
> second CPU? I've read the SMP HOWTO but did not find anything much. It said
> something about "MPS version 1.4 and 1.1" .. I tried to change that in the
> system bios.. but no joy...
>
> Any ideas what I can do to get this to work?
>
> Regards
>
> Rishi
>
>
> OUTPUT OF TOP
> =====================================================
> top - 23:17:48 up 2:56, 5 users, load average: 0.02, 0.05, 0.09
> Tasks: 116 total, 1 running, 115 sleeping, 0 stopped, 0 zombie
> Cpu(s): 16.6% us, 4.1% sy, 0.0% ni, 75.1% id, 2.5% wa, 0.6% hi, 1.1% si
> Mem: 321332k total, 302524k used, 18808k free, 16992k buffers
> Swap: 976744k total, 55324k used, 921420k free, 150444k cached
>
>
>
>
> OUTPUT OF DMESG
> ==========================================================
> Linux version 2.6.8-1-686-smp (dilinger@toaster.hq.voxel.net) (gcc version
> 3.3.4 (Debian 1:3.3.4-11)) #1 SMP Mon Sep 13 23:02:39 EDT 2004
> BIOS-provided physical RAM map:
> BIOS-e820: 0000000000000000 - 000000000009f800 (usable)
> BIOS-e820: 000000000009f800 - 00000000000a0000 (reserved)
> BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved)
> BIOS-e820: 0000000000100000 - 0000000014000000 (usable)
> BIOS-e820: 00000000fec00000 - 00000000fec10000 (reserved)
> BIOS-e820: 00000000fee00000 - 00000000fee01000 (reserved)
> BIOS-e820: 00000000ffff0000 - 0000000100000000 (reserved)
> 0MB HIGHMEM available.
> 320MB LOWMEM available.
> found SMP MP-table at 000f70c0
> On node 0 totalpages: 81920
> DMA zone: 4096 pages, LIFO batch:1
> Normal zone: 77824 pages, LIFO batch:16
> HighMem zone: 0 pages, LIFO batch:1
> DMI 2.0 present.
> ACPI disabled because your bios is from 98 and too old
> You can enable it with acpi=force
> Intel MultiProcessor Specification v1.1
> Virtual Wire compatibility mode.
> OEM ID: INTEL Product ID: DK440LX APIC at: 0xFEE00000
> Processor #1 6:5 APIC version 17
> Processor #0 6:5 APIC version 17
> I/O APIC #2 Version 17 at 0xFEC00000.
> Enabling APIC mode: Flat. Using 1 I/O APICs
> Processors: 2
> Built 1 zonelists
> Kernel command line: root=/dev/hda1 ro
> Initializing CPU#0
> PID hash table entries: 2048 (order 11: 16384 bytes)
> Detected 333.184 MHz processor.
> Using tsc for high-res timesource
> Console: colour VGA+ 80x25
> Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
> Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
> Memory: 316176k/327680k available (1654k kernel code, 10732k reserved, 762k
> data, 168k init, 0k highmem)
> Checking if this processor honours the WP bit even in supervisor mode... Ok.
> Calibrating delay loop... 655.36 BogoMIPS
> Security Scaffold v1.0.0 initialized
> Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
> CPU: After generic identify, caps: 0183fbff 00000000 00000000 00000000
> CPU: After vendor identify, caps: 0183fbff 00000000 00000000 00000000
> CPU: L1 I cache: 16K, L1 D cache: 16K
> CPU: L2 cache: 512K
> CPU: After all inits, caps: 0183fbff 00000000 00000000 00000040
> Intel machine check architecture supported.
> Intel machine check reporting enabled on CPU#0.
> Enabling fast FPU save and restore... done.
> Checking 'hlt' instruction... OK.
> ACPI: System description tables not found
> ACPI-0084: *** Error: acpi_load_tables: Could not get RSDP, AE_NOT_FOUND
> ACPI-0134: *** Error: acpi_load_tables: Could not load tables:
> AE_NOT_FOUND
> ACPI: Unable to load the System Description Tables
> CPU0: Intel Pentium II (Deschutes) stepping 00
> per-CPU timeslice cutoff: 1461.97 usecs.
> task migration cache decay timeout: 2 msecs.
> masked ExtINT on CPU#0
> ESR value before enabling vector: 00000000
> ESR value after enabling vector: 00000000
> Booting processor 1/0 eip 3000
> Initializing CPU#1
> masked ExtINT on CPU#1
> ESR value before enabling vector: 00000000
> ESR value after enabling vector: 00000000
> Calibrating delay loop... 663.55 BogoMIPS
> CPU: After generic identify, caps: 0183fbff 00000000 00000000 00000000
> CPU: After vendor identify, caps: 0183fbff 00000000 00000000 00000000
> CPU: L1 I cache: 16K, L1 D cache: 16K
> CPU: L2 cache: 512K
> CPU: After all inits, caps: 0183fbff 00000000 00000000 00000040
> Intel machine check architecture supported.
> Intel machine check reporting enabled on CPU#1.
> CPU1: Intel Pentium II (Deschutes) stepping 00
> Total of 2 processors activated (1318.91 BogoMIPS).
> ENABLING IO-APIC IRQs
> Setting 2 in the phys_id_present_map
> ...changing IO-APIC physical APIC ID to 2 ... ok.
> init IO_APIC IRQs
> IO-APIC (apicid-pin) 2-0, 2-18, 2-20, 2-21, 2-22, 2-23 not connected.
> ..TIMER: vector=0x31 pin1=2 pin2=0
> number of MP IRQ sources: 20.
> number of IO-APIC #2 registers: 24.
> testing the IO APIC.......................
> IO APIC #2......
> .... register #00: 02000000
> ....... : physical APIC id: 02
> ....... : Delivery Type: 0
> ....... : LTS : 0
> .... register #01: 00170011
> ....... : max redirection entries: 0017
> ....... : PRQ implemented: 0
> ....... : IO APIC version: 0011
> .... register #02: 00000000
> ....... : arbitration: 00
> .... IRQ redirection table:
> NR Log Phy Mask Trig IRR Pol Stat Dest Deli Vect:
> 00 000 00 1 0 0 0 0 0 0 00
> 01 001 01 0 0 0 0 0 1 1 39
> 02 001 01 0 0 0 0 0 1 1 31
> 03 001 01 0 0 0 0 0 1 1 41
> 04 001 01 0 0 0 0 0 1 1 49
> 05 001 01 0 0 0 0 0 1 1 51
> 06 001 01 0 0 0 0 0 1 1 59
> 07 001 01 0 0 0 0 0 1 1 61
> 08 001 01 0 0 0 0 0 1 1 69
> 09 001 01 1 1 0 1 0 1 1 71
> 0a 001 01 1 1 0 1 0 1 1 79
> 0b 001 01 1 1 0 1 0 1 1 81
> 0c 001 01 0 0 0 0 0 1 1 89
> 0d 001 01 0 0 0 0 0 1 1 91
> 0e 001 01 0 0 0 0 0 1 1 99
> 0f 001 01 0 0 0 0 0 1 1 A1
> 10 001 01 1 1 0 1 0 1 1 A9
> 11 001 01 1 1 0 1 0 1 1 B1
> 12 000 00 1 0 0 0 0 0 0 00
> 13 001 01 1 1 0 1 0 1 1 B9
> 14 000 00 1 0 0 0 0 0 0 00
> 15 000 00 1 0 0 0 0 0 0 00
> 16 000 00 1 0 0 0 0 0 0 00
> 17 000 00 1 0 0 0 0 0 0 00
> Using vector-based indexing
> IRQ to pin mappings:
> IRQ0 -> 0:2
> IRQ1 -> 0:1
> IRQ3 -> 0:3
> IRQ4 -> 0:4
> IRQ5 -> 0:5
> IRQ6 -> 0:6
> IRQ7 -> 0:7
> IRQ8 -> 0:8
> IRQ9 -> 0:9
> IRQ10 -> 0:10
> IRQ11 -> 0:11
> IRQ12 -> 0:12
> IRQ13 -> 0:13
> IRQ14 -> 0:14
> IRQ15 -> 0:15
> IRQ169 -> 0:16
> IRQ177 -> 0:17
> IRQ185 -> 0:19
> .................................... done.
> Using local APIC timer interrupts.
> calibrating APIC timer ...
> ..... CPU clock speed is 333.0003 MHz.
> ..... host bus clock speed is 66.0600 MHz.
> checking TSC synchronization across 2 CPUs: passed.
> Brought up 2 CPUs
> CPU0: online
> domain 0: span 01
> groups: 01
> domain 1: span 03
> groups: 01 02
> CPU1: online
> domain 0: span 02
> groups: 02
> domain 1: span 03
> groups: 02 01
> checking if image is initramfs...it isn't (ungzip failed); looks like an
> initrd
> Freeing initrd memory: 4604k freed
> NET: Registered protocol family 16
> PCI: PCI BIOS revision 2.10 entry at 0xfd99c, last bus=1
> PCI: Using configuration type 1
> mtrr: v2.0 (20020519)
> ACPI: Subsystem revision 20040326
> ACPI: Interpreter disabled.
> Linux Plug and Play Support v0.97 (c) Adam Belay
> PnPBIOS: Scanning system for PnP BIOS support...
> PnPBIOS: Found PnP BIOS installation structure at 0xc00f7090
> PnPBIOS: PnP BIOS version 1.0, entry 0xf0000:0xb762, dseg 0x400
> pnp: 00:0c: ioport range 0x4d0-0x4d1 has been reserved
> pnp: 00:0c: ioport range 0x8000-0x803f has been reserved
> pnp: 00:0c: ioport range 0x7000-0x700f has been reserved
> pnp: 00:0f: ioport range 0x290-0x297 has been reserved
> PnPBIOS: 20 nodes reported by PnP BIOS; 20 recorded by driver
> PCI: Probing PCI hardware
> PCI: Probing PCI hardware (bus 00)
> PCI: Using IRQ router PIIX/ICH [8086/7110] at 0000:00:02.0
> PCI->APIC IRQ transform: (B0,I2,P3) -> 185
> PCI->APIC IRQ transform: (B0,I3,P0) -> 185
> PCI->APIC IRQ transform: (B0,I13,P0) -> 177
> PCI->APIC IRQ transform: (B1,I0,P0) -> 169
> VFS: Disk quotas dquot_6.5.1
> Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
> devfs: 2004-01-31 Richard Gooch (rgooch@atnf.csiro.au)
> devfs: boot_options: 0x0
> Initializing Cryptographic API
> Limiting direct PCI/PCI transfers.
> isapnp: Scanning for PnP cards...
> isapnp: No Plug & Play device found
> Serial: 8250/16550 driver $Revision: 1.90 $ 48 ports, IRQ sharing enabled
> ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
> ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A
> RAMDISK driver initialized: 16 RAM disks of 8192K size 1024 blocksize
> serio: i8042 AUX port at 0x60,0x64 irq 12
> serio: i8042 KBD port at 0x60,0x64 irq 1
> input: AT Translated Set 2 keyboard on isa0060/serio0
> NET: Registered protocol family 2
> IP: routing cache hash table of 4096 buckets, 32Kbytes
> TCP: Hash tables configured (established 32768 bind 32768)
> NET: Registered protocol family 8
> NET: Registered protocol family 20
> RAMDISK: cramfs filesystem found at block 0
> RAMDISK: Loading 4604 blocks [1 disk] into ram disk... | / - \ | / - \ | / - \
> | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / -
> \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | /
> - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \
> | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / -
> \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | /
> - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \
> | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / -
> \ | / - \ done.
> VFS: Mounted root (cramfs filesystem) readonly.
> Freeing unused kernel memory: 168k freed
> vesafb: probe of vesafb0 failed with error -6
> NET: Registered protocol family 1
> Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
> ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
> PIIX4: IDE controller at PCI slot 0000:00:02.1
> PIIX4: chipset revision 1
> PIIX4: not 100% native mode: will probe irqs later
> ide0: BM-DMA at 0xfc90-0xfc97, BIOS settings: hda:DMA, hdb:pio
> ide1: BM-DMA at 0xfc98-0xfc9f, BIOS settings: hdc:DMA, hdd:DMA
> hda: ST320413A, ATA DISK drive
> Using anticipatory io scheduler
> ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
> hda: max request size: 128KiB
> hda: 39102336 sectors (20020 MB) w/512KiB Cache, CHS=38792/16/63, UDMA(33)
> /dev/ide/host0/bus0/target0/lun0: p1 p2 p3
> hdc: ST320413A, ATA DISK drive
> hdd: CREATIVECD3220E, ATAPI CD/DVD-ROM drive
> ide1 at 0x170-0x177,0x376 on irq 15
> hdc: max request size: 128KiB
> hdc: 39102336 sectors (20020 MB) w/512KiB Cache, CHS=38792/16/63, UDMA(33)
> /dev/ide/host0/bus1/target0/lun0:
> kjournald starting. Commit interval 5 seconds
> EXT3-fs: mounted filesystem with ordered data mode.
> Adding 976744k swap on /dev/hda2. Priority:-1 extents:1
> EXT3 FS on hda1, internal journal
> Real Time Clock Driver v1.12
> hdd: ATAPI 32X CD-ROM drive, 240kB Cache, DMA
> Uniform CD-ROM driver Revision: 3.20
> eepro100.c:v1.09j-t 9/29/99 Donald Becker
> http://www.scyld.com/network/eepro100.html
> eepro100.c: $Revision: 1.36 $ 2000/11/17 Modified by Andrey V. Savochkin
> <saw@saw.sw.com.sg> and others
> eth0: 0000:00:03.0, 00:A0:C9:AC:DC:9F, IRQ 185.
> Receiver lock-up bug exists -- enabling work-around.
> Board assembly 000000-000, Physical connectors present: RJ45
> Primary interface chip unknown-11 PHY #1.
> General self-test: passed.
> Serial sub-system self-test: passed.
> Internal registers self-test: passed.
> ROM checksum self-test: passed (0x49caa8d6).
> Receiver lock-up workaround activated.
> Capability LSM initialized
> device-mapper: 4.1.0-ioctl (2003-12-10) initialised: dm@uk.sistina.com
> kjournald starting. Commit interval 5 seconds
> EXT3 FS on hda3, internal journal
> EXT3-fs: mounted filesystem with ordered data mode.
> Linux agpgart interface v0.100 (c) Dave Jones
> e100: Intel(R) PRO/100 Network Driver, 3.0.18
> e100: Copyright(c) 1999-2004 Intel Corporation
> es1371: version v0.32 time 23:18:47 Sep 13 2004
> es1371: found chip, vendor id 0x1274 device id 0x5880 revision 0x02
> es1371: found es1371 rev 2 at io 0xfcc0 irq 177 joystick 0x0
> ac97_codec: AC97 Audio codec, id: 0x8384:0x7609 (SigmaTel STAC9721/23)
> input: PC Speaker
> inserting floppy driver for 2.6.8-1-686-smp
> Floppy drive(s): fd0 is 1.44M
> FDC 0 is a National Semiconductor PC87306
> parport: PnPBIOS parport detected.
> parport0: PC-style at 0x378 (0x778), irq 7, dma 3
> [PCSPP,TRISTATE,COMPAT,EPP,ECP,DMA]
> input: PS/2 Generic Mouse on isa0060/serio1
> mice: PS/2 mouse device common for all mice
> ts: Compaq touchscreen protocol output
> agpgart: Detected an Intel 440LX Chipset.
> agpgart: Maximum main memory to use for agp memory: 263M
> agpgart: AGP aperture is 64M @ 0xf8000000
> cpci_hotplug: CompactPCI Hot Plug Core version: 0.2
> pci_hotplug: PCI Hot Plug PCI Core version: 0.5
> pciehp: PCI Express Hot Plug Controller Driver version: 0.4
> shpchp: shpc_init : shpc_cap_offset == 0
> shpchp: Standard Hot Plug PCI Controller Driver version: 0.4
> usbcore: registered new driver usbfs
> usbcore: registered new driver hub
> USB Universal Host Controller Interface driver v2.2
> uhci_hcd 0000:00:02.2: Intel Corp. 82371AB/EB/MB PIIX4 USB
> uhci_hcd 0000:00:02.2: irq 185, io base 0000fca0
> uhci_hcd 0000:00:02.2: new USB bus registered, assigned bus number 1
> hub 1-0:1.0: USB hub found
> hub 1-0:1.0: 2 ports detected
> lp0: using parport0 (interrupt-driven).
> Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
> NET: Registered protocol family 10
> Disabled Privacy Extensions on device c031ac80(lo)
> IPv6 over IPv4 tunneling driver
> apm: BIOS not found.
> eth0: no IPv6 routers present
> apm: BIOS not found.
>
>
>
>
> OUTPUT OF /PROC/CPUINFO
> ===============================================================
> processor : 0
> vendor_id : GenuineIntel
> cpu family : 6
> model : 5
> model name : Pentium II (Deschutes)
> stepping : 0
> cpu MHz : 333.184
> cache size : 512 KB
> fdiv_bug : no
> hlt_bug : no
> f00f_bug : no
> coma_bug : no
> fpu : yes
> fpu_exception : yes
> cpuid level : 2
> wp : yes
> flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca
> cmov pat pse36 mmx fxsr
> bogomips : 655.36
>
> processor : 1
> vendor_id : GenuineIntel
> cpu family : 6
> model : 5
> model name : Pentium II (Deschutes)
> stepping : 0
> cpu MHz : 333.184
> cache size : 512 KB
> fdiv_bug : no
> hlt_bug : no
> f00f_bug : no
> coma_bug : no
> fpu : yes
> fpu_exception : yes
> cpuid level : 2
> wp : yes
> flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca
> cmov pat pse36 mmx fxsr
> bogomips : 663.55
>
>
>
>
> --
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