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Hyperthreading with 2.4.23 ?



Hi,

has anyone got HT working with kernel 2.4.23?
When I switched from 2.4.22, I lost HT on my Dual Xeon Servers
(Serverworks chipset). I tried to google for some infos regarding
the change and got several hits, but nothing really helped:
tried to activate/deactivate ACPI in the kernel configs, tried
several boot parameters: (acpismp=ht, acpismp=force) and greped
the kernel sources for hyperthreading).

Has anyone got HT working with 2.4.23?

Thanks, Thomas

here is one of my logs:
(actually there are 4 procs found but only 2 activated)

Dec  9 17:00:38 master05 kernel: ACPI: have wakeup address 0xc0002000
Dec  9 17:00:38 master05 kernel: found SMP MP-table at 000ff780
Dec  9 17:00:38 master05 kernel: hm, page 000ff000 reserved twice.
Dec  9 17:00:38 master05 kernel: hm, page 00100000 reserved twice.
Dec  9 17:00:38 master05 kernel: hm, page 000f1000 reserved twice.
Dec  9 17:00:38 master05 kernel: hm, page 000f2000 reserved twice.
Dec  9 17:00:38 master05 kernel: On node 0 totalpages: 229376
Dec  9 17:00:38 master05 kernel: zone(0): 4096 pages.
Dec  9 17:00:38 master05 kernel: zone(1): 225280 pages.
Dec  9 17:00:38 master05 kernel: zone(2): 0 pages.
Dec  9 17:00:38 master05 kernel: ACPI: RSDP (v000 INTEL                        
             ) @ 0x000ff9b0
Dec  9 17:00:38 master05 kernel: ACPI: RSDT (v001 INTEL  SWV25    0x00000001 
MSFT 0x01000000) @ 0x3fff0000
Dec  9 17:00:38 master05 kernel: ACPI: FADT (v001 INTEL  SWV25    0x00000001 
MSFT 0x01000000) @ 0x3fff0030
Dec  9 17:00:38 master05 kernel: ACPI: MADT (v001 INTEL  SWV25    0x00000001 
MSFT 0x01000000) @ 0x3fff00b0
Dec  9 17:00:38 master05 kernel: ACPI: OEMR (v001 INTEL  SWV25    0x00000001 
MSFT 0x01000000) @ 0x3fff0140
Dec  9 17:00:38 master05 kernel: ACPI: DSDT (v001  INTEL    SWV25 0x00000100 
INTL 0x20020918) @ 0x00000000
Dec  9 17:00:38 master05 kernel: ACPI: Local APIC address 0xfee00000
Dec  9 17:00:38 master05 kernel: ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] 
enabled)
Dec  9 17:00:38 master05 kernel: Processor #0 Pentium 4(tm) XEON(tm) APIC 
version 20
Dec  9 17:00:38 master05 kernel: ACPI: LAPIC (acpi_id[0x01] lapic_id[0x06] 
enabled)
Dec  9 17:00:38 master05 kernel: Processor #6 Pentium 4(tm) XEON(tm) APIC 
version 20
Dec  9 17:00:38 master05 kernel: ACPI: LAPIC (acpi_id[0x02] lapic_id[0x01] 
enabled)
Dec  9 17:00:38 master05 kernel: Processor #1 Pentium 4(tm) XEON(tm) APIC 
version 20
Dec  9 17:00:38 master05 kernel: ACPI: LAPIC (acpi_id[0x03] lapic_id[0x07] 
enabled)
Dec  9 17:00:38 master05 kernel: Processor #7 Pentium 4(tm) XEON(tm) APIC 
version 20
Dec  9 17:00:38 master05 kernel: ACPI: LAPIC_NMI (acpi_id[0x00] polarity[0x1] 
trigger[0x3] lint[0x1])
Dec  9 17:00:38 master05 kernel: ACPI: LAPIC_NMI (acpi_id[0x01] polarity[0x1] 
trigger[0x3] lint[0x1])
....
Dec  9 17:00:38 master05 kernel: Using ACPI (MADT) for SMP configuration 
information
Dec  9 17:00:38 master05 kernel: Kernel command line: auto BOOT_IMAGE=linux 
root=900 acpi=force
Dec  9 17:00:38 master05 kernel: Initializing CPU#0
Dec  9 17:00:38 master05 kernel: Detected 2392.344 MHz processor.
Dec  9 17:00:38 master05 kernel: Console: colour VGA+ 80x25
Dec  9 17:00:38 master05 kernel: Calibrating delay loop... 4771.02 BogoMIPS
Dec  9 17:00:38 master05 kernel: Memory: 904028k/917504k available (1876k 
kernel code, 13068k reserved, 762k data, 124k init, 0k highmem)
Dec  9 17:00:38 master05 kernel: Dentry cache hash table entries: 131072 
(order: 8, 1048576 bytes)
Dec  9 17:00:38 master05 kernel: Inode cache hash table entries: 65536 (order: 
7, 524288 bytes)
Dec  9 17:00:38 master05 kernel: Mount cache hash table entries: 512 (order: 
0, 4096 bytes)
Dec  9 17:00:38 master05 kernel: Buffer cache hash table entries: 65536 
(order: 6, 262144 bytes)
Dec  9 17:00:38 master05 kernel: Page-cache hash table entries: 262144 (order: 
8, 1048576 bytes)
Dec  9 17:00:38 master05 kernel: CPU: Trace cache: 12K uops, L1 D cache: 8K
Dec  9 17:00:38 master05 kernel: CPU: L2 cache: 512K
Dec  9 17:00:38 master05 kernel: CPU: Physical Processor ID: 0
Dec  9 17:00:38 master05 kernel: CPU:     After generic, caps: bfebfbff 
00000000 00000000 00000000
Dec  9 17:00:38 master05 kernel: CPU:             Common caps: bfebfbff 
00000000 00000000 00000000
Dec  9 17:00:38 master05 kernel: Enabling fast FPU save and restore... done.
Dec  9 17:00:38 master05 kernel: Enabling unmasked SIMD FPU exception 
support... done.
Dec  9 17:00:38 master05 kernel: Checking 'hlt' instruction... OK.
Dec  9 17:00:38 master05 kernel: POSIX conformance testing by UNIFIX
Dec  9 17:00:38 master05 kernel: CPU: Trace cache: 12K uops, L1 D cache: 8K
Dec  9 17:00:38 master05 kernel: CPU: L2 cache: 512K
Dec  9 17:00:38 master05 kernel: CPU: Physical Processor ID: 0
Dec  9 17:00:38 master05 kernel: CPU:     After generic, caps: bfebfbff 
00000000 00000000 00000000
Dec  9 17:00:38 master05 kernel: CPU:             Common caps: bfebfbff 
00000000 00000000 00000000
Dec  9 17:00:38 master05 kernel: CPU0: Intel(R) Xeon(TM) CPU 2.40GHz stepping 
07
Dec  9 17:00:38 master05 kernel: per-CPU timeslice cutoff: 1462.89 usecs.
Dec  9 17:00:38 master05 kernel: enabled ExtINT on CPU#0
Dec  9 17:00:38 master05 kernel: ESR value before enabling vector: 00000000
Dec  9 17:00:38 master05 kernel: ESR value after enabling vector: 00000000
Dec  9 17:00:38 master05 kernel: Booting processor 1/1 eip 3000
Dec  9 17:00:38 master05 kernel: Initializing CPU#1
Dec  9 17:00:38 master05 kernel: masked ExtINT on CPU#1
Dec  9 17:00:38 master05 kernel: ESR value before enabling vector: 00000000
Dec  9 17:00:38 master05 kernel: ESR value after enabling vector: 00000000
Dec  9 17:00:38 master05 kernel: Calibrating delay loop... 4784.12 BogoMIPS
Dec  9 17:00:38 master05 kernel: CPU: Trace cache: 12K uops, L1 D cache: 8K
Dec  9 17:00:38 master05 kernel: CPU: L2 cache: 512K
Dec  9 17:00:38 master05 kernel: CPU: Physical Processor ID: 0
Dec  9 17:00:38 master05 kernel: CPU:     After generic, caps: bfebfbff 
00000000 00000000 00000000
Dec  9 17:00:38 master05 kernel: CPU:             Common caps: bfebfbff 
00000000 00000000 00000000
Dec  9 17:00:38 master05 kernel: CPU1: Intel(R) Xeon(TM) CPU 2.40GHz stepping 
07
Dec  9 17:00:38 master05 kernel: Total of 2 processors activated (9555.14 
BogoMIPS).
Dec  9 17:00:38 master05 kernel: cpu_sibling_map[0] = 1
Dec  9 17:00:38 master05 kernel: cpu_sibling_map[1] = 0




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