Hello.
Living on the bleeding edge, I spotted something which interests me, or
at least roused my curiousity;
kernel 2.4.0-test1-ac4 smp
1 celeron 466 running at 466 (waiting on a second cpu)
redhat6.2 (mostly unmodified; except for the new kernel, etc)
abit bp6 motherboard - which I have heard has "issues" with smp, so this
might just be one - but even so, it would be nice to know for sure :)
/proc/interrupts seems to have a large number of LOC and NMI interrupts.
I guess the latter to be the result of the nmi_watchdog
This isn't causing any trouble that I can see, so this post is more of a
"Why?".
and if there's any FM out there I can go RT (as in RTFM), just point me
to it :)
anyway, some numbers:
=== /proc/interrupts ===
CPU0
0: 788947 IO-APIC-edge timer
1: 29224 IO-APIC-edge keyboard
2: 0 XT-PIC cascade
5: 271340 IO-APIC-edge soundblaster
8: 1 IO-APIC-edge rtc
12: 89549 IO-APIC-edge PS/2 Mouse
13: 1 XT-PIC fpu
14: 21390 IO-APIC-edge ide0
15: 29 IO-APIC-edge ide1
19: 167159 IO-APIC-level eth0
NMI: 788971
LOC: 788925
ERR: 0
===
=== /proc/interrupts ===
CPU0
0: 791816 IO-APIC-edge timer
1: 29512 IO-APIC-edge keyboard
2: 0 XT-PIC cascade
5: 272575 IO-APIC-edge soundblaster
8: 1 IO-APIC-edge rtc
12: 90131 IO-APIC-edge PS/2 Mouse
13: 1 XT-PIC fpu
14: 21440 IO-APIC-edge ide0
15: 29 IO-APIC-edge ide1
19: 167772 IO-APIC-level eth0
NMI: 791840
LOC: 791794
ERR: 0
===
timer, NMI, and LOC seem to be keeping pace with each other, and a while
back at the 650000 or so mark, NMI == irq0
=== bootup... long :) ===
May 28 22:59:51 midnight syslogd 1.3-3: restart.
May 28 22:59:51 midnight syslog: syslogd startup succeeded
May 28 22:59:51 midnight kernel: klogd 1.3-3, log source = /proc/kmsg
started.
May 28 22:59:51 midnight kernel: Inspecting
/boot/System.map-2.4.0-test1-ac4
May 28 22:59:51 midnight syslog: klogd startup succeeded
May 28 22:59:51 midnight kernel: Loaded 12669 symbols from
/boot/System.map-2.4.0-test1-ac4.
May 28 22:59:51 midnight kernel: Symbols match kernel version 2.4.0.
May 28 22:59:51 midnight identd: identd startup succeeded
May 28 22:59:51 midnight kernel: Loaded 222 symbols from 13 modules.
May 28 22:59:51 midnight kernel: Linux version 2.4.0-test1-ac4
(root@midnight) (gcc version egcs-2.91.66 19990314/Linux (egcs-1.1.2
release)) #3 SMP Sun May 28 22:57:02 NZST 2000
May 28 22:59:51 midnight kernel: BIOS-provided physical RAM map:
May 28 22:59:51 midnight kernel: e820: 000000000009fc00 @
0000000000000000 (usable)
May 28 22:59:51 midnight kernel: e820: 0000000000000400 @
000000000009fc00 (reserved)
May 28 22:59:51 midnight kernel: e820: 0000000000010000 @
00000000000f0000 (reserved)
May 28 22:59:51 midnight kernel: e820: 0000000000001000 @
00000000fec00000 (reserved)
May 28 22:59:51 midnight kernel: e820: 0000000000001000 @
00000000fee00000 (reserved)
May 28 22:59:51 midnight kernel: e820: 0000000000010000 @
00000000ffff0000 (reserved)
May 28 22:59:51 midnight kernel: e820: 0000000007f00000 @
0000000000100000 (usable)
May 28 22:59:51 midnight kernel: Scan SMP from c0000000 for 1024 bytes.
May 28 22:59:51 midnight kernel: Scan SMP from c009fc00 for 1024 bytes.
May 28 22:59:51 midnight kernel: Scan SMP from c00f0000 for 65536 bytes.
May 28 22:59:51 midnight kernel: found SMP MP-table at 000f5b90
May 28 22:59:51 midnight kernel: hm, page 000f5000 reserved twice.
May 28 22:59:51 midnight kernel: hm, page 000f6000 reserved twice.
May 28 22:59:51 midnight kernel: hm, page 000f1000 reserved twice.
May 28 22:59:51 midnight kernel: hm, page 000f2000 reserved twice.
May 28 22:59:51 midnight kernel: On node 0 totalpages: 32768
May 28 22:59:51 midnight kernel: zone(0): 4096 pages.
May 28 22:59:51 midnight kernel: zone(1): 28672 pages.
May 28 22:59:51 midnight kernel: zone(2): 0 pages.
May 28 22:59:51 midnight kernel: Intel MultiProcessor Specification v1.1
May 28 22:59:51 midnight kernel: Virtual Wire compatibility mode.
May 28 22:59:51 midnight kernel: OEM ID: OEM00000 Product ID:
PROD00000000 APIC at: 0xFEE00000
May 28 22:59:51 midnight kernel: Processor #0 Pentium(tm) Pro APIC
version 17
May 28 22:59:51 midnight kernel: Floating point unit present.
May 28 22:59:51 midnight kernel: Machine Exception supported.
May 28 22:59:51 midnight kernel: 64 bit compare & exchange
supported.
May 28 22:59:51 midnight kernel: Internal APIC present.
May 28 22:59:51 midnight kernel: Bootup CPU
May 28 22:59:51 midnight kernel: Bus #0 is PCI
May 28 22:59:51 midnight kernel: Bus #1 is PCI
May 28 22:59:51 midnight kernel: Bus #2 is ISA
May 28 22:59:51 midnight kernel: I/O APIC #2 Version 17 at 0xFEC00000.
May 28 22:59:51 midnight kernel: Int: type 3, pol 0, trig 0, bus 2, IRQ
00, APIC ID 2, APIC INT 00
May 28 22:59:51 midnight kernel: Int: type 0, pol 0, trig 0, bus 2, IRQ
01, APIC ID 2, APIC INT 01
May 28 22:59:51 midnight kernel: Int: type 0, pol 0, trig 0, bus 2, IRQ
00, APIC ID 2, APIC INT 02
May 28 22:59:51 midnight kernel: Int: type 0, pol 0, trig 0, bus 2, IRQ
03, APIC ID 2, APIC INT 03
May 28 22:59:51 midnight kernel: Int: type 0, pol 0, trig 0, bus 2, IRQ
04, APIC ID 2, APIC INT 04
May 28 22:59:51 midnight kernel: Int: type 0, pol 0, trig 0, bus 2, IRQ
05, APIC ID 2, APIC INT 05
May 28 22:59:51 midnight kernel: Int: type 0, pol 0, trig 0, bus 2, IRQ
06, APIC ID 2, APIC INT 06
May 28 22:59:51 midnight kernel: Int: type 0, pol 0, trig 0, bus 2, IRQ
07, APIC ID 2, APIC INT 07
May 28 22:59:52 midnight kernel: Int: type 0, pol 1, trig 1, bus 2, IRQ
08, APIC ID 2, APIC INT 08
May 28 22:59:52 midnight kernel: Int: type 0, pol 0, trig 0, bus 2, IRQ
0c, APIC ID 2, APIC INT 0c
May 28 22:59:52 midnight kernel: Int: type 0, pol 0, trig 0, bus 2, IRQ
0d, APIC ID 2, APIC INT 0d
May 28 22:59:52 midnight kernel: Int: type 0, pol 0, trig 0, bus 2, IRQ
0e, APIC ID 2, APIC INT 0e
May 28 22:59:52 midnight kernel: Int: type 0, pol 0, trig 0, bus 2, IRQ
0f, APIC ID 2, APIC INT 0f
May 28 22:59:52 midnight kernel: Int: type 0, pol 3, trig 3, bus 0, IRQ
1c, APIC ID 2, APIC INT 13
May 28 22:59:52 midnight kernel: Int: type 0, pol 3, trig 3, bus 0, IRQ
24, APIC ID 2, APIC INT 13
May 28 22:59:52 midnight kernel: Int: type 0, pol 3, trig 3, bus 0, IRQ
3c, APIC ID 2, APIC INT 10
May 28 22:59:52 midnight kernel: Int: type 0, pol 3, trig 3, bus 0, IRQ
4c, APIC ID 2, APIC INT 12
May 28 22:59:52 midnight kernel: Int: type 0, pol 3, trig 3, bus 0, IRQ
4d, APIC ID 2, APIC INT 12
May 28 22:59:52 midnight kernel: Int: type 2, pol 0, trig 0, bus 2, IRQ
00, APIC ID 2, APIC INT 17
May 28 22:59:52 midnight kernel: Lint: type 3, pol 0, trig 0, bus 0, IRQ
00, APIC ID ff, APIC LINT 00
May 28 22:59:52 midnight kernel: Lint: type 1, pol 0, trig 0, bus 0, IRQ
00, APIC ID ff, APIC LINT 01
May 28 22:59:52 midnight kernel: Processors: 1
May 28 22:59:52 midnight kernel: mapped APIC to ffffe000 (fee00000)
May 28 22:59:52 midnight kernel: mapped IOAPIC to ffffd000 (fec00000)
May 28 22:59:52 midnight kernel: Kernel command line:
BOOT_IMAGE=linux_2.4ac ro root=307 video=matrox:vesa:261
May 28 22:59:52 midnight kernel: Initializing CPU#0
May 28 22:59:52 midnight kernel: Detected 467742693 Hz processor.
May 28 22:59:52 midnight kernel: Console: colour VGA+ 80x25
May 28 22:59:52 midnight kernel: Calibrating delay loop... 933.89
BogoMIPS
May 28 22:59:52 midnight kernel: Memory: 126620k/131072k available
(1157k kernel code, 4064k reserved, 111k data, 200k init, 0k highmem)
May 28 22:59:52 midnight kernel: Dentry-cache hash table entries: 16384
(order: 5, 131072 bytes)
May 28 22:59:52 midnight kernel: Buffer-cache hash table entries: 8192
(order: 3, 32768 bytes)
May 28 22:59:52 midnight kernel: Page-cache hash table entries: 32768
(order: 5, 131072 bytes)
May 28 22:59:52 midnight kernel: kmem_create: Poisoning requested, but
con given - bdev_cache
May 28 22:59:52 midnight kernel: Inode-cache hash table entries: 8192
(order: 4, 65536 bytes)
May 28 22:59:52 midnight kernel: kmem_create: Poisoning requested, but
con given - inode_cache
May 28 22:59:52 midnight kernel: Checking 386/387 coupling... OK, FPU
using exception 16 error reporting.
May 28 22:59:52 midnight kernel: Checking 'hlt' instruction... OK.
May 28 22:59:52 midnight kernel: POSIX conformance testing by UNIFIX
May 28 22:59:52 midnight kernel: mtrr: v1.36 (20000221) Richard Gooch
(rgooch@atnf.csiro.au)
May 28 22:59:52 midnight kernel: CPU0: Intel Celeron (Mendocino)
stepping 05
May 28 22:59:52 midnight kernel: per-CPU timeslice cutoff: 357.65 usecs.
May 28 22:59:52 midnight kernel: Getting VERSION: 40011
May 28 22:59:52 midnight kernel: Getting VERSION: 40011
May 28 22:59:52 midnight kernel: Getting LVT0: 700
May 28 22:59:52 midnight kernel: Getting LVT1: 400
May 28 22:59:52 midnight kernel: enabled ExtINT on CPU#0
May 28 22:59:52 midnight kernel: ESR value before enabling vector:
00000004
May 28 22:59:52 midnight kernel: ESR value after enabling vector:
00000000
May 28 22:59:52 midnight kernel: CPU present map: 1
May 28 22:59:52 midnight kernel: Before bogomips.
May 28 22:59:52 midnight kernel: Error: only one processor found.
May 28 22:59:52 midnight kernel: Boot done.
May 28 22:59:52 midnight kernel: ENABLING IO-APIC IRQs
May 28 22:59:52 midnight kernel: ...changing IO-APIC physical APIC ID to
2 ... ok.
May 28 22:59:52 midnight kernel: Synchronizing Arb IDs.
May 28 22:59:52 midnight atd: atd startup succeeded
May 28 22:59:52 midnight kernel: ..TIMER: vector=49 pin1=2 pin2=0
May 28 22:59:52 midnight kernel: activating NMI Watchdog ... done.
May 28 22:59:52 midnight kernel: testing the IO
APIC.......................
May 28 22:59:52 midnight kernel:
May 28 22:59:52 midnight kernel: ....................................
done.
May 28 22:59:52 midnight kernel: calibrating APIC timer ...
May 28 22:59:52 midnight kernel: ..... CPU clock speed is 467.7122 MHz.
May 28 22:59:52 midnight kernel: ..... host bus clock speed is 66.8160
MHz.
May 28 22:59:52 midnight kernel: cpu: 0, clocks: 668160, slice: 334080
May 28 22:59:52 midnight kernel:
CPU0<C0:668160,C:334080,D:0,S:334080,C:668160>
May 28 22:59:52 midnight kernel: Setting commenced=1, go go go
May 28 22:59:52 midnight kernel: PCI: PCI BIOS revision 2.10 entry at
0xfb440, last bus=1
May 28 22:59:52 midnight kernel: PCI: Using configuration type 1
May 28 22:59:52 midnight kernel: PCI: Probing PCI hardware
May 28 22:59:52 midnight kernel: PCI: Using IRQ router PIIX [8086/7000]
at 00:07.0
May 28 22:59:52 midnight kernel: PCI->APIC IRQ transform: (B0,I7,P3) ->
19
May 28 22:59:52 midnight kernel: PCI->APIC IRQ transform: (B0,I9,P0) ->
19
May 28 22:59:52 midnight kernel: PCI->APIC IRQ transform: (B0,I15,P0) ->
16
May 28 22:59:52 midnight kernel: PCI->APIC IRQ transform: (B0,I19,P0) ->
18
May 28 22:59:52 midnight kernel: PCI->APIC IRQ transform: (B0,I19,P1) ->
18
May 28 22:59:52 midnight kernel: Limiting direct PCI/PCI transfers.
May 28 22:59:52 midnight kernel: Linux NET4.0 for Linux 2.3
May 28 22:59:52 midnight kernel: Based upon Swansea University Computer
Society NET3.039
May 28 22:59:52 midnight kernel: kmem_create: Poisoning requested, but
con given - skbuff_head_cache
May 28 22:59:52 midnight kernel: NET4: Unix domain sockets 1.0/SMP for
Linux NET4.0.
May 28 22:59:52 midnight kernel: NET4: Linux TCP/IP 1.0 for NET4.0
May 28 22:59:52 midnight kernel: IP Protocols: ICMP, UDP, TCP
May 28 22:59:52 midnight kernel: IP: routing cache hash table of 1024
buckets, 8Kbytes
May 28 22:59:52 midnight kernel: TCP: Hash tables configured
(established 8192 bind 8192)
May 28 22:59:52 midnight kernel: apm: BIOS version 1.2 Flags 0x07
(Driver version 1.13)
May 28 22:59:52 midnight kernel: Starting kswapd v1.6
May 28 22:59:52 midnight kernel: matroxfb: Matrox Mystique (PCI)
detected
May 28 22:59:52 midnight kernel: matroxfb: MTRR's turned on
May 28 22:59:52 midnight kernel: matroxfb: 1024x768x8bpp (virtual:
1024x2044)
May 28 22:59:52 midnight kernel: matroxfb: framebuffer at 0xE5000000,
mapped to 0xc8805000, size 2097152
May 28 22:59:52 midnight kernel: Console: switching to colour frame
buffer device 128x48
May 28 22:59:52 midnight kernel: fb0: MATROX VGA frame buffer device
May 28 22:59:52 midnight kernel: pty: 256 Unix98 ptys configured
May 28 22:59:52 midnight kernel: Uniform Multi-Platform E-IDE driver
Revision: 6.30
May 28 22:59:52 midnight kernel: ide: Assuming 33MHz system bus speed
for PIO modes; override with idebus=xx
May 28 22:59:52 midnight kernel: PIIX4: IDE controller on PCI bus 00 dev
39
May 28 22:59:52 midnight kernel: PIIX4: chipset revision 1
May 28 22:59:52 midnight kernel: PIIX4: not 100% native mode: will probe
irqs later
May 28 22:59:52 midnight kernel: ide0: BM-DMA at 0xf000-0xf007, BIOS
settings: hda:DMA, hdb:pio
May 28 22:59:52 midnight kernel: ide1: BM-DMA at 0xf008-0xf00f, BIOS
settings: hdc:pio, hdd:DMA
May 28 22:59:52 midnight kernel: HPT366: onboard version of chipset,
pin1=1 pin2=2
May 28 22:59:52 midnight kernel: HPT366: IDE controller on PCI bus 00
dev 98
May 28 22:59:52 midnight kernel: HPT366: chipset revision 1
May 28 22:59:52 midnight kernel: HPT366: not 100% native mode: will
probe irqs later
May 28 22:59:52 midnight kernel: ide2: BM-DMA at 0xe000-0xe007, BIOS
settings: hde:pio, hdf:pio
May 28 22:59:52 midnight kernel: HPT366: IDE controller on PCI bus 00
dev 99
May 28 22:59:52 midnight kernel: HPT366: chipset revision 1
May 28 22:59:52 midnight kernel: HPT366: not 100% native mode: will
probe irqs later
May 28 22:59:52 midnight kernel: ide3: BM-DMA at 0xec00-0xec07, BIOS
settings: hdg:pio, hdh:pio
May 28 22:59:52 midnight kernel: hda: ST313620A, ATA DISK drive
May 28 22:59:52 midnight kernel: hdd: FX240S, ATAPI CDROM drive
May 28 22:59:52 midnight kernel: ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
May 28 22:59:52 midnight kernel: ide1 at 0x170-0x177,0x376 on irq 15
May 28 22:59:52 midnight kernel: hda: 26692776 sectors (13667 MB)
w/512KiB Cache, CHS=1661/255/63, UDMA(33)
May 28 22:59:52 midnight kernel: Partition check:
May 28 22:59:52 midnight kernel: /dev/ide/host0/bus0/target0/lun0: p1
p2 p3 < p5 p6 p7 p8 > p4
May 28 22:59:52 midnight kernel: Real Time Clock Driver v1.10c
May 28 22:59:52 midnight kernel: devfs: v0.96 (20000430) Richard Gooch
(rgooch@atnf.csiro.au)
May 28 22:59:52 midnight kernel: devfs: boot_options: 0x2
May 28 22:59:52 midnight kernel: VFS: Mounted root (ext2 filesystem)
readonly.
May 28 22:59:52 midnight kernel: Freeing unused kernel memory: 200k
freed
May 28 22:59:52 midnight kernel: hdd: ATAPI 24X CD-ROM drive, 256kB
Cache, DMA
May 28 22:59:52 midnight kernel: Uniform CD-ROM driver Revision: 3.09
May 28 22:59:52 midnight kernel: Adding Swap: 128512k swap-space
(priority -1)
May 28 22:59:52 midnight kernel: isapnp: Scanning for Pnp cards...
May 28 22:59:52 midnight kernel: isapnp: No Plug & Play device found
May 28 22:59:52 midnight kernel: Serial driver version 4.93 (2000-03-20)
with MANY_PORTS SHARE_IRQ SERIAL_PCI ISAPNP enabled
May 28 22:59:52 midnight kernel: ttyS00 at 0x03f8 (irq = 4) is a 16550A
May 28 22:59:52 midnight kernel: ttyS01 at 0x02f8 (irq = 3) is a 16550A
May 28 22:59:52 midnight kernel: 8139too Fast Ethernet driver 0.9.5
loaded
May 28 22:59:52 midnight kernel: eth0: RealTek RTL8139 Fast Ethernet
board found at 0xe9000000, IRQ 19
May 28 22:59:52 midnight kernel: eth0: Chip is 'RTL-8139A'
May 28 22:59:52 midnight kernel: eth0: MAC address 00:00:b4:bd:c6:c6.
May 28 22:59:52 midnight kernel: Installing knfsd (copyright (C) 1996
okir@monad.swb.de).
May 28 22:59:52 midnight kernel: kmem_create: Forcing size word
alignment - nfs_fh
=== <redhat starts /etc/rc.d/rc.sysinit> ===
Longwindedly Yours,
Gerard Sharp
-
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