http://bugzilla.kernel.org/show_bug.cgi?id=13640
Summary: processor detection fails due to bios mistake
Product: ACPI
Version: 2.5
Kernel Version: 2.6.29
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Config-Processors
AssignedTo: [email protected]
ReportedBy: [email protected]
Regression: No
Created an attachment (id=22129)
--> (http://bugzilla.kernel.org/attachment.cgi?id=22129)
dmesg of CPU detection with ACPI
CPU: amd opteron 270
mainboard: tyan tiger k8SSA
only one of both CPUs is installed
When using MPS to lookup for CPUs, everything works as expected, I get both
cores online.
When using ACPI, only one core is detected:
the mainboard claims it is not SMP capable, while it should be. I guess it
makes this mistake due to only one CPU being installed.
in the attachment: dmesg output with ACPI support.
I tried playing with acpi=ht, nolapic noapic, but in vain.
I tried numa=noacpi, and tried additional_cpus=4 to bring the core online with
CPU hotplugging. none of them worked.
I suggest a kernel option 'ignore mainboard SMP state' or something to look for
CPUs which are not listed
dmesg without acpi detection:
Jun 28 01:08:03 linuxserver [ 0.000000] Linux version 2.6.29-gentoo-r5
(r...@linuxserver) (gcc version 4.3.2 (Gentoo 4.3.2-r3 p1.6, pie-10.1.5) ) #3
SMP Sun Jun 28
00:04:38 CES$
Jun 28 01:08:03 linuxserver [ 0.000000] Command line: auto BOOT_IMAGE=gentoo
ro root=303
Jun 28 01:08:03 linuxserver [ 0.000000] KERNEL supported cpus:
Jun 28 01:08:03 linuxserver [ 0.000000] Intel GenuineIntel
Jun 28 01:08:03 linuxserver [ 0.000000] AMD AuthenticAMD
Jun 28 01:08:03 linuxserver [ 0.000000] Centaur CentaurHauls
Jun 28 01:08:03 linuxserver [ 0.000000] BIOS-provided physical RAM map:
Jun 28 01:08:03 linuxserver [ 0.000000] BIOS-e820: 0000000000000000 -
000000000009f000 (usable)
Jun 28 01:08:03 linuxserver [ 0.000000] BIOS-e820: 000000000009f000 -
00000000000a0000 (reserved)
Jun 28 01:08:03 linuxserver [ 0.000000] BIOS-e820: 00000000000e0000 -
0000000000100000 (reserved)
Jun 28 01:08:03 linuxserver [ 0.000000] BIOS-e820: 0000000000100000 -
00000000bfff0000 (usable)
Jun 28 01:08:03 linuxserver [ 0.000000] BIOS-e820: 00000000bfff0000 -
00000000bfffe000 (ACPI data)
Jun 28 01:08:03 linuxserver [ 0.000000] BIOS-e820: 00000000bfffe000 -
00000000c0000000 (ACPI NVS)
Jun 28 01:08:03 linuxserver [ 0.000000] BIOS-e820: 00000000fec00000 -
00000000fec03000 (reserved)
Jun 28 01:08:03 linuxserver [ 0.000000] BIOS-e820: 00000000fee00000 -
00000000fee01000 (reserved)
Jun 28 01:08:03 linuxserver [ 0.000000] BIOS-e820: 0000000100000000 -
0000000140000000 (usable)
Jun 28 01:08:03 linuxserver [ 0.000000] DMI 2.3 present.
Jun 28 01:08:03 linuxserver [ 0.000000] AMI BIOS detected: BIOS may corrupt
low RAM, working around it.
Jun 28 01:08:03 linuxserver [ 0.000000] last_pfn = 0x140000 max_arch_pfn =
0x100000000
Jun 28 01:08:03 linuxserver [ 0.000000] x86 PAT enabled: cpu 0, old
0x7040600070406, new 0x7010600070106
Jun 28 01:08:03 linuxserver [ 0.000000] last_pfn = 0xbfff0 max_arch_pfn =
0x100000000
Jun 28 01:08:03 linuxserver [ 0.000000] init_memory_mapping:
0000000000000000-00000000bfff0000
Jun 28 01:08:03 linuxserver [ 0.000000] 0000000000 - 00bfe00000 page 2M
Jun 28 01:08:03 linuxserver [ 0.000000] 00bfe00000 - 00bfff0000 page 4k
Jun 28 01:08:03 linuxserver [ 0.000000] kernel direct mapping tables up to
bfff0000 @ 10000-15000
Jun 28 01:08:03 linuxserver [ 0.000000] last_map_addr: bfff0000 end:
bfff0000
Jun 28 01:08:03 linuxserver [ 0.000000] init_memory_mapping:
0000000100000000-0000000140000000
Jun 28 01:08:03 linuxserver [ 0.000000] 0100000000 - 0140000000 page 2M
Jun 28 01:08:03 linuxserver [ 0.000000] kernel direct mapping tables up to
140000000 @ 13000-19000
Jun 28 01:08:03 linuxserver [ 0.000000] last_map_addr: 140000000 end:
140000000
Jun 28 01:08:03 linuxserver [ 0.000000] Scanning NUMA topology in
Northbridge 24
Jun 28 01:08:03 linuxserver [ 0.000000] No NUMA configuration found
Jun 28 01:08:03 linuxserver [ 0.000000] Faking a node at
0000000000000000-0000000140000000
Jun 28 01:08:03 linuxserver [ 0.000000] Bootmem setup node 0
0000000000000000-0000000140000000
Jun 28 01:08:03 linuxserver [ 0.000000] NODE_DATA [0000000000014000 -
0000000000016fff]
Jun 28 01:08:03 linuxserver [ 0.000000] bootmap [0000000000017000 -
000000000003efff] pages 28
Jun 28 01:08:03 linuxserver [ 0.000000] (6 early reservations) ==> bootmem
[0000000000 - 0140000000]
Jun 28 01:08:03 linuxserver [ 0.000000] #0 [0000000000 - 0000001000]
BIOS data page ==> [0000000000 - 0000001000]
Jun 28 01:08:03 linuxserver [ 0.000000] #1 [0000006000 - 0000008000]
TRAMPOLINE ==> [0000006000 - 0000008000]
Jun 28 01:08:03 linuxserver [ 0.000000] #2 [0001000000 - 000181ecc8]
TEXT DATA BSS ==> [0001000000 - 000181ecc8]
Jun 28 01:08:03 linuxserver [ 0.000000] #3 [000009f000 - 0000100000]
BIOS reserved ==> [000009f000 - 0000100000]
Jun 28 01:08:03 linuxserver [ 0.000000] #4 [0000010000 - 0000013000]
PGTABLE ==> [0000010000 - 0000013000]
Jun 28 01:08:03 linuxserver [ 0.000000] #5 [0000013000 - 0000014000]
PGTABLE ==> [0000013000 - 0000014000]
Jun 28 01:08:03 linuxserver [ 0.000000] found SMP MP-table at
[ffff8800000ff780] 000ff780
Jun 28 01:08:03 linuxserver [ 0.000000] [ffffe20000000000-ffffe200045fffff]
PMD -> [ffff880001a00000-ffff8800051fffff] on node 0
Jun 28 01:08:03 linuxserver [ 0.000000] Zone PFN ranges:
Jun 28 01:08:03 linuxserver [ 0.000000] DMA 0x00000010 -> 0x00001000
Jun 28 01:08:03 linuxserver [ 0.000000] DMA32 0x00001000 -> 0x00100000
Jun 28 01:08:03 linuxserver [ 0.000000] Normal 0x00100000 -> 0x00140000
Jun 28 01:08:03 linuxserver [ 0.000000] Movable zone start PFN for each node
Jun 28 01:08:03 linuxserver [ 0.000000] early_node_map[3] active PFN ranges
Jun 28 01:08:03 linuxserver [ 0.000000] 0: 0x00000010 -> 0x0000009f
Jun 28 01:08:03 linuxserver [ 0.000000] 0: 0x00000100 -> 0x000bfff0
Jun 28 01:08:03 linuxserver [ 0.000000] 0: 0x00100000 -> 0x00140000
Jun 28 01:08:03 linuxserver [ 0.000000] On node 0 totalpages: 1048447
Jun 28 01:08:03 linuxserver [ 0.000000] DMA zone: 56 pages used for memmap
Jun 28 01:08:03 linuxserver [ 0.000000] DMA zone: 106 pages reserved
Jun 28 01:08:03 linuxserver [ 0.000000] DMA zone: 3821 pages, LIFO batch:0
Jun 28 01:08:03 linuxserver [ 0.000000] DMA32 zone: 14280 pages used for
memmap
Jun 28 01:08:03 linuxserver [ 0.000000] DMA32 zone: 768040 pages, LIFO
batch:31
Jun 28 01:08:03 linuxserver [ 0.000000] Normal zone: 3584 pages used for
memmap
Jun 28 01:08:03 linuxserver [ 0.000000] Normal zone: 258560 pages, LIFO
batch:31
Jun 28 01:08:03 linuxserver [ 0.000000] Detected use of extended apic ids on
hypertransport bus
Jun 28 01:08:03 linuxserver [ 0.000000] Intel MultiProcessor Specification
v1.4
Jun 28 01:08:03 linuxserver [ 0.000000] MPTABLE: OEM ID: TEMPLATE
Jun 28 01:08:03 linuxserver [ 0.000000] MPTABLE: Product ID: ETEMPLATE
Jun 28 01:08:03 linuxserver [ 0.000000] MPTABLE: APIC at: 0xFEE00000
Jun 28 01:08:03 linuxserver [ 0.000000] Processor #0 (Bootup-CPU)
Jun 28 01:08:03 linuxserver [ 0.000000] Processor #1
Jun 28 01:08:03 linuxserver [ 0.000000] I/O APIC #2 Version 17 at
0xFEC00000.
Jun 28 01:08:03 linuxserver [ 0.000000] I/O APIC #3 Version 17 at
0xFEC01000.
Jun 28 01:08:03 linuxserver [ 0.000000] I/O APIC #4 Version 17 at
0xFEC02000.
Jun 28 01:08:03 linuxserver [ 0.000000] Processors: 2
Jun 28 01:08:03 linuxserver [ 0.000000] SMP: Allowing 2 CPUs, 0 hotplug CPUs
Jun 28 01:08:03 linuxserver [ 0.000000] nr_irqs_gsi: 48
Jun 28 01:08:03 linuxserver [ 0.000000] Allocating PCI resources starting at
c4000000 (gap: c0000000:3ec00000)
Jun 28 01:08:03 linuxserver [ 0.000000] NR_CPUS:48 nr_cpumask_bits:48
nr_cpu_ids:2 nr_node_ids:1
Jun 28 01:08:03 linuxserver [ 0.000000] PERCPU: Allocating 57344 bytes of
per cpu data
Jun 28 01:08:03 linuxserver [ 0.000000] Built 1 zonelists in Node order,
mobility grouping on. Total pages: 1030421
Jun 28 01:08:03 linuxserver [ 0.000000] Policy zone: Normal
Jun 28 01:08:03 linuxserver [ 0.000000] Kernel command line: auto
BOOT_IMAGE=gentoo ro root=303
Jun 28 01:08:03 linuxserver [ 0.000000] Initializing CPU#0
Jun 28 01:08:03 linuxserver [ 0.000000] PID hash table entries: 4096 (order:
12, 32768 bytes)
Jun 28 01:08:03 linuxserver [ 0.000000] Fast TSC calibration using PIT
Jun 28 01:08:03 linuxserver [ 0.000000] Detected 1995.149 MHz processor.
Jun 28 01:08:03 linuxserver [ 0.010000] Console: colour VGA+ 80x25
Jun 28 01:08:03 linuxserver [ 0.010000] console [tty0] enabled
Jun 28 01:08:03 linuxserver [ 0.010000] Checking aperture...
Jun 28 01:08:03 linuxserver [ 0.010000] No AGP bridge found
Jun 28 01:08:03 linuxserver [ 0.010000] Node 0: aperture @ f0000000 size 64
MB
Jun 28 01:08:03 linuxserver [ 0.010000] Memory: 4127568k/5242880k available
(4864k kernel code, 1049092k absent, 66220k reserved, 1836k data, 328k init)
Jun 28 01:08:03 linuxserver [ 0.010000] SLUB: Genslabs=13, HWalign=64,
Order=0-3, MinObjects=0, CPUs=2, Nodes=1
Jun 28 01:08:03 linuxserver [ 0.010006] Calibrating delay loop (skipped),
value calculated using timer frequency.. 3990.29 BogoMIPS (lpj=19951490)
Jun 28 01:08:03 linuxserver [ 0.010261] Security Framework initialized
Jun 28 01:08:03 linuxserver [ 0.010691] Dentry cache hash table entries:
524288 (order: 10, 4194304 bytes)
Jun 28 01:08:03 linuxserver [ 0.013651] Inode-cache hash table entries:
262144 (order: 9, 2097152 bytes)
Jun 28 01:08:03 linuxserver [ 0.015027] Mount-cache hash table entries: 256
Jun 28 01:08:03 linuxserver [ 0.015296] CPU: L1 I Cache: 64K (64
bytes/line), D cache 64K (64 bytes/line)
Jun 28 01:08:03 linuxserver [ 0.015419] CPU: L2 Cache: 1024K (64 bytes/line)
Jun 28 01:08:03 linuxserver [ 0.015535] CPU 0/0x0 -> Node 0
Jun 28 01:08:03 linuxserver [ 0.015647] tseg: 0000000000
Jun 28 01:08:03 linuxserver [ 0.015658] CPU: Physical Processor ID: 0
Jun 28 01:08:03 linuxserver [ 0.015772] CPU: Processor Core ID: 0
Jun 28 01:08:03 linuxserver [ 0.015952] Setting APIC routing to flat
Jun 28 01:08:03 linuxserver [ 0.016247] ExtINT not setup in hardware but
reported by MP table
Jun 28 01:08:03 linuxserver [ 0.017007] ..TIMER: vector=0x30 apic1=0 pin1=2
apic2=0 pin2=0
Jun 28 01:08:03 linuxserver [ 0.117147] CPU0: Dual Core AMD Opteron(tm)
Processor 270 stepping 02
Jun 28 01:08:03 linuxserver [ 0.230515] Booting processor 1 APIC 0x1 ip
0x6000
Jun 28 01:08:03 linuxserver [ 0.010000] Initializing CPU#1
Jun 28 01:08:03 linuxserver [ 0.010000] Calibrating delay using timer
specific routine.. 3990.10 BogoMIPS (lpj=19950515)
Jun 28 01:08:03 linuxserver [ 0.010000] CPU: L1 I Cache: 64K (64
bytes/line), D cache 64K (64 bytes/line)
Jun 28 01:08:03 linuxserver [ 0.010000] CPU: L2 Cache: 1024K (64 bytes/line)
Jun 28 01:08:03 linuxserver [ 0.010000] CPU 1/0x1 -> Node 0
Jun 28 01:08:03 linuxserver [ 0.010000] CPU: Physical Processor ID: 0
Jun 28 01:08:03 linuxserver [ 0.010000] CPU: Processor Core ID: 1
Jun 28 01:08:03 linuxserver [ 0.010000] x86 PAT enabled: cpu 1, old
0x7040600070406, new 0x7010600070106
Jun 28 01:08:03 linuxserver [ 0.390376] CPU1: Dual Core AMD Opteron(tm)
Processor 270 stepping 02
Jun 28 01:08:03 linuxserver [ 0.391569] Brought up 2 CPUs
Jun 28 01:08:03 linuxserver [ 0.391681] Total of 2 processors activated
(7980.40 BogoMIPS).
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