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List: linux-smp
Subject: IBM xSeries 220 MP-BIOS bug questions
From: "Alpha Linux" <alphalinux123 () yahoo ! com>
Date: 2001-11-08 4:38:50
[Download RAW message or body]
Hello,
Forgive me if I've reached the wrong contact.
My company has four IBM xSeries 220 servers. Each server is dual processor
capable, but has only one processor installed per computer. When I compile
the kernel on each system, I enable APIC support for single processors. When
each system boots, the kernel reports that there is an MP-BIOS bug regarding
the timer. The kernel tries to set up the timer through the 8259A, but fails
and then disables the NMI watchdog. My dmesg from one of the machines
running Red Hat Linux 7.1 will be included at the end of my e-mail.
How serious is this problem? What is the fix for this problem or is it even
possible to fix it? What happens if I need to upgrade the machines to two
processors and need to enable the APIC? If the NMI watchdog does not work,
what other features will not be available? Has this problem been encountered
before in the IBM xSeries 220 and would a different machine and/or brand be
recommended?
Thank you very much for your time. I appreciate any time spent regarding
this issue.
dmesg:
Linux version 2.4.14 (root@devel-1) (gcc version 2.96 20000731 (Red Hat
Linux 7.1 2.96-85)) #1 Tue Nov 6 15:57:54 UTC 2001
BIOS-provided physical RAM map:
BIOS-e820: 0000000000000000 - 000000000009dc00 (usable)
BIOS-e820: 000000000009dc00 - 00000000000a0000 (reserved)
BIOS-e820: 00000000000e0000 - 0000000000100000 (reserved)
BIOS-e820: 0000000000100000 - 000000000ffed140 (usable)
BIOS-e820: 000000000ffed140 - 000000000fff0000 (ACPI data)
BIOS-e820: 000000000fff0000 - 0000000010000000 (reserved)
BIOS-e820: 00000000fec00000 - 0000000100000000 (reserved)
found SMP MP-table at 0009ddd0
hm, page 0009d000 reserved twice.
hm, page 0009e000 reserved twice.
hm, page 0009d000 reserved twice.
hm, page 0009e000 reserved twice.
WARNING: MP table in the EBDA can be UNSAFE, contact
linux-smp@vger.kernel.org if you experience SMP problems!
On node 0 totalpages: 65517
zone(0): 4096 pages.
zone(1): 61421 pages.
zone(2): 0 pages.
Intel MultiProcessor Specification v1.4
Virtual Wire compatibility mode.
OEM ID: IBM ENSW Product ID: xSeries 220 APIC at: 0xFEE00000
Processor #0 Pentium(tm) Pro APIC version 17
I/O APIC #14 Version 17 at 0xFEC00000.
I/O APIC #13 Version 17 at 0xFEC01000.
Processors: 1
Kernel command line: auto BOOT_IMAGE=linux2414 ro root=806
BOOT_FILE=/boot/vmlinuz-2.4.14-11062001 nmi_watchdog=2
Initializing CPU#0
Detected 999.582 MHz processor.
Console: colour VGA+ 80x25
Calibrating delay loop... 1992.29 BogoMIPS
Memory: 255700k/262068k available (1112k kernel code, 5972k reserved, 333k
data, 200k init, 0k highmem)
Dentry-cache hash table entries: 32768 (order: 6, 262144 bytes)
Inode-cache hash table entries: 16384 (order: 5, 131072 bytes)
Mount-cache hash table entries: 4096 (order: 3, 32768 bytes)
Buffer-cache hash table entries: 16384 (order: 4, 65536 bytes)
Page-cache hash table entries: 65536 (order: 6, 262144 bytes)
CPU: Before vendor init, caps: 0383fbff 00000000 00000000, vendor = 0
CPU: L1 I cache: 16K, L1 D cache: 16K
CPU: L2 cache: 256K
Intel machine check architecture supported.
Intel machine check reporting enabled on CPU#0.
CPU: After vendor init, caps: 0383fbff 00000000 00000000 00000000
CPU: After generic, caps: 0383fbff 00000000 00000000 00000000
CPU: Common caps: 0383fbff 00000000 00000000 00000000
CPU: Intel Pentium III (Coppermine) stepping 0a
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Checking 'hlt' instruction... OK.
POSIX conformance testing by UNIFIX
enabled ExtINT on CPU#0
ESR value before enabling vector: 00000000
ESR value after enabling vector: 00000000
testing NMI watchdog ... OK.
ENABLING IO-APIC IRQs
Setting 14 in the phys_id_present_map
...changing IO-APIC physical APIC ID to 14 ... ok.
Setting 13 in the phys_id_present_map
...changing IO-APIC physical APIC ID to 13 ... ok.
init IO_APIC IRQs
IO-APIC (apicid-pin) 14-0, 14-5, 14-9, 14-11, 14-15, 13-1, 13-2, 13-3,
13-4, 13-5, 13-6, 13-7, 13-8, 13-9, 13-10, 13-13, 13-14, 13-15 not
connected.
..TIMER: vector=0x31 pin1=2 pin2=-1
..MP-BIOS bug: 8254 timer not connected to IO-APIC
...trying to set up timer (IRQ0) through the 8259A ... failed.
timer doesnt work through the IO-APIC - disabling NMI Watchdog!
...trying to set up timer as Virtual Wire IRQ... works.
number of MP IRQ sources: 14.
number of IO-APIC #14 registers: 16.
number of IO-APIC #13 registers: 16.
testing the IO APIC.......................
IO APIC #14......
.... register #00: 0E000000
....... : physical APIC id: 0E
.... register #01: 000F0011
....... : max redirection entries: 000F
....... : PRQ implemented: 0
....... : IO APIC version: 0011
.... register #02: 0E000000
....... : arbitration: 0E
.... 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
02 000 00 1 0 0 0 0 0 0 00
03 001 01 0 0 0 0 0 1 1 41
04 001 01 0 0 0 0 0 1 1 49
05 000 00 1 0 0 0 0 0 0 00
06 001 01 0 0 0 0 0 1 1 51
07 001 01 0 0 0 0 0 1 1 59
08 001 01 0 0 0 0 0 1 1 61
09 000 00 1 0 0 0 0 0 0 00
0a 001 01 1 1 0 1 0 1 1 69
0b 000 00 1 0 0 0 0 0 0 00
0c 001 01 0 0 0 0 0 1 1 71
0d 001 01 0 0 0 0 0 1 1 79
0e 001 01 0 0 0 0 0 1 1 81
0f 000 00 1 0 0 0 0 0 0 00
IO APIC #13......
.... register #00: 0D000000
....... : physical APIC id: 0D
.... register #01: 000F0011
....... : max redirection entries: 000F
....... : PRQ implemented: 0
....... : IO APIC version: 0011
.... register #02: 0D000000
....... : arbitration: 0D
.... IRQ redirection table:
NR Log Phy Mask Trig IRR Pol Stat Dest Deli Vect:
00 001 01 1 1 0 1 0 1 1 89
01 000 00 1 0 0 0 0 0 0 00
02 000 00 1 0 0 0 0 0 0 00
03 000 00 1 0 0 0 0 0 0 00
04 000 00 1 0 0 0 0 0 0 00
05 000 00 1 0 0 0 0 0 0 00
06 000 00 1 0 0 0 0 0 0 00
07 000 00 1 0 0 0 0 0 0 00
08 000 00 1 0 0 0 0 0 0 00
09 000 00 1 0 0 0 0 0 0 00
0a 000 00 1 0 0 0 0 0 0 00
0b 001 01 1 1 0 1 0 1 1 91
0c 001 01 1 1 0 1 0 1 1 99
0d 000 00 1 0 0 0 0 0 0 00
0e 000 00 1 0 0 0 0 0 0 00
0f 000 00 1 0 0 0 0 0 0 00
IRQ to pin mappings:
IRQ0 -> 0:2
IRQ1 -> 0:1
IRQ3 -> 0:3
IRQ4 -> 0:4
IRQ6 -> 0:6
IRQ7 -> 0:7
IRQ8 -> 0:8
IRQ10 -> 0:10
IRQ12 -> 0:12
IRQ13 -> 0:13
IRQ14 -> 0:14
IRQ16 -> 1:0
IRQ27 -> 1:11
IRQ28 -> 1:12
.................................... done.
Using local APIC timer interrupts.
calibrating APIC timer ...
..... CPU clock speed is 999.5354 MHz.
..... host bus clock speed is 133.2713 MHz.
cpu: 0, clocks: 1332713, slice: 666356
CPU0<T0:1332704,T1:666336,D:12,S:666356,C:1332713>
mtrr: v1.40 (20010327) Richard Gooch (rgooch@atnf.csiro.au)
mtrr: detected mtrr type: Intel
PCI: PCI BIOS revision 2.10 entry at 0xfd5dc, last bus=1
PCI: Using configuration type 1
PCI: Probing PCI hardware
PCI: Discovered peer bus 01
PCI->APIC IRQ transform: (B0,I2,P0) -> 27
PCI->APIC IRQ transform: (B0,I9,P0) -> 16
PCI->APIC IRQ transform: (B0,I15,P0) -> 10
PCI->APIC IRQ transform: (B1,I3,P0) -> 28
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
IBM machine detected. Enabling interrupts during APM calls.
IA-32 Microcode Update Driver: v1.09 <tigran@veritas.com>
Starting kswapd
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ
SERIAL_PCI enabled
ttyS00 at 0x03f8 (irq = 4) is a 16550A
ttyS01 at 0x02f8 (irq = 3) is a 16550A
block: 128 slots per queue, batch=32
Uniform Multi-Platform E-IDE driver Revision: 6.31
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
ServerWorks OSB4: IDE controller on PCI bus 00 dev 79
ServerWorks OSB4: chipset revision 0
ServerWorks OSB4: not 100% native mode: will probe irqs later
ide0: BM-DMA at 0x0700-0x0707, BIOS settings: hda:DMA, hdb:DMA
ide1: BM-DMA at 0x0708-0x070f, BIOS settings: hdc:pio, hdd:pio
hda: LTN486S, ATAPI CD/DVD-ROM drive
Uhhuh. NMI received for unknown reason 25.
Dazed and confused, but trying to continue
Do you have a strange power saving mode enabled?
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
hda: ATAPI 48X CD-ROM drive, 120kB Cache, UDMA(33)
Uniform CD-ROM driver Revision: 3.12
Floppy drive(s): fd0 is 1.44M
FDC 0 is a National Semiconductor PC87306
SCSI subsystem driver Revision: 1.00
scsi0 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 6.2.4
<Adaptec aic7892 Ultra160 SCSI adapter>
aic7892: Ultra160 Wide Channel A, SCSI Id=7, 32/253 SCBs
Vendor: IBM-PSG Model: DPSS-318350N M Rev: S9HA
Type: Direct-Access ANSI SCSI revision: 03
scsi0:A:0:0: Tagged Queuing enabled. Depth 253
Attached scsi disk sda at scsi0, channel 0, id 0, lun 0
(scsi0:A:0): 160.000MB/s transfers (80.000MHz DT, offset 63, 16bit)
SCSI device sda: 35548320 512-byte hdwr sectors (18201 MB)
Partition check:
sda: sda1 sda2 < sda5 sda6 > sda4
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP, IGMP
IP: routing cache hash table of 2048 buckets, 16Kbytes
TCP: Hash tables configured (established 16384 bind 16384)
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
VFS: Mounted root (ext2 filesystem) readonly.
Freeing unused kernel memory: 200k freed
Real Time Clock Driver v1.10e
Adding Swap: 265032k swap-space (priority -1)
usb.c: registered new driver usbdevfs
usb.c: registered new driver hub
usb-ohci.c: USB OHCI at membase 0xd0848000, IRQ 10
usb-ohci.c: usb-00:0f.2, ServerWorks OSB4/CSB5 OHCI USB Controller
usb.c: new USB bus registered, assigned bus number 1
hub.c: USB hub found
hub.c: 4 ports detected
parport0: PC-style at 0x378 [PCSPP]
parport0: cpp_daisy: aa5500ff(38)
parport0: assign_addrs: aa5500ff(38)
parport0: cpp_daisy: aa5500ff(38)
parport0: assign_addrs: aa5500ff(38)
eepro100.c:v1.09j-t 9/29/99 Donald Becker
http://cesdis.gsfc.nasa.gov/linux/drivers/eepro100.html
eepro100.c: $Revision: 1.36 $ 2000/11/17 Modified by Andrey V. Savochkin
<saw@saw.sw.com.sg> and others
eth0: Intel Corp. 82557 [Ethernet Pro 100], 00:02:55:D4:FA:60, IRQ 27.
Board assembly 000000-000, Physical connectors present: RJ45
Primary interface chip i82555 PHY #1.
General self-test: passed.
Serial sub-system self-test: passed.
Internal registers self-test: passed.
ROM checksum self-test: passed (0x04f4518b).
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