It appears he didn't enable ACPI, so no HT support. Thanks, Shaohua
>-----Original Message----- >From: [EMAIL PROTECTED] [mailto:linux-acpi- >[EMAIL PROTECTED] On Behalf Of Andrew Morton >Sent: Thursday, January 19, 2006 6:48 PM >To: [email protected] >Subject: Fw: [Bugme-new] [Bug 5693] New: Hyperthreading processor shows >only 1 CPU > > >Is this an APCI problem? > >Begin forwarded message: > >Date: Fri, 2 Dec 2005 12:32:33 -0800 >From: [EMAIL PROTECTED] >To: [EMAIL PROTECTED] >Subject: [Bugme-new] [Bug 5693] New: Hyperthreading processor shows only 1 >CPU > > >http://bugzilla.kernel.org/show_bug.cgi?id=5693 > > Summary: Hyperthreading processor shows only 1 CPU > Kernel Version: 2.6.14.3 > Status: NEW > Severity: normal > Owner: [EMAIL PROTECTED] > Submitter: [EMAIL PROTECTED] > > >Most recent kernel where this bug did not occur: > (that I'm aware of and have tested) 2.6.10 > >Distribution: LFS > >Hardware Environment: > Intel S875WP1-E Entry Server Board > Intel(R) Pentium(R) 4 CPU 3.40GHz > 1 Gig Ram > 250 Gig sata drive > >(Output from lspci) >00:00.0 Host bridge: Intel Corp.: Unknown device 2578 (rev 02) >00:01.0 PCI bridge: Intel Corp.: Unknown device 2579 (rev 02) >00:03.0 PCI bridge: Intel Corp.: Unknown device 257b (rev 02) >00:1d.0 USB Controller: Intel Corp.: Unknown device 24d2 (rev 02) >00:1d.1 USB Controller: Intel Corp.: Unknown device 24d4 (rev 02) >00:1d.2 USB Controller: Intel Corp.: Unknown device 24d7 (rev 02) >00:1d.3 USB Controller: Intel Corp.: Unknown device 24de (rev 02) >00:1d.7 USB Controller: Intel Corp.: Unknown device 24dd (rev 02) >00:1e.0 PCI bridge: Intel Corp. 82801BA/CA/DB PCI Bridge (rev c2) >00:1f.0 ISA bridge: Intel Corp.: Unknown device 24d0 (rev 02) >00:1f.1 IDE interface: Intel Corp.: Unknown device 24db (rev 02) >00:1f.2 IDE interface: Intel Corp.: Unknown device 24d1 (rev 02) >00:1f.3 SMBus: Intel Corp.: Unknown device 24d3 (rev 02) >02:01.0 Ethernet controller: Intel Corp.: Unknown device 1019 >03:06.0 VGA compatible controller: ATI Technologies Inc Rage XL (rev 27) >03:07.0 RAID bus controller: Promise Technology, Inc.: Unknown device 3319 >(rev 02) >03:08.0 Ethernet controller: Intel Corp.: Unknown device 1050 (rev 01) > >Software Environment: > Console based server set up. Based off of LFS 5.1 Running apache, qmail, >mysql. > >Problem Description: > Upgraded to the 2.6.14.3 kernel because of SMP based eip errors on the >previous kernel (2.6.10) when the system was under heavy load. With SMP >and SMT >turned on, and the kernel set for Pentium-4/Celeron(P4-based)/Pentium-4 >M/Xeon >as the Processor Family. The 3.4ghz hyperthreading processor only shows 1 >CPU >in /proc/cpuinfo, and in the boot.log/dmesg output. > >(Output of /proc/cpuinfo) >processor : 0 >vendor_id : GenuineIntel >cpu family : 15 >model : 3 >model name : Intel(R) Pentium(R) 4 CPU 3.40GHz >stepping : 4 >cpu MHz : 3392.200 >cache size : 1024 KB >physical id : 0 >siblings : 2 >core id : 0 >cpu cores : 1 >fdiv_bug : no >hlt_bug : no >f00f_bug : no >coma_bug : no >fpu : yes >fpu_exception : yes >cpuid level : 5 >wp : yes >flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca >cmov >pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe pni monitor >ds_cpl cid >xtpr >bogomips : 6792.41 > >(dmesg information) >BIOS-provided physical RAM map: > BIOS-e820: 0000000000000000 - 000000000009fc00 (usable) > BIOS-e820: 000000000009fc00 - 00000000000a0000 (reserved) > BIOS-e820: 00000000000e6000 - 0000000000100000 (reserved) > BIOS-e820: 0000000000100000 - 000000003fe30000 (usable) > BIOS-e820: 000000003fe30000 - 000000003fe414a0 (ACPI NVS) > BIOS-e820: 000000003fe414a0 - 000000003ff30000 (usable) > BIOS-e820: 000000003ff30000 - 000000003ff40000 (ACPI data) > BIOS-e820: 000000003ff40000 - 000000003fff0000 (ACPI NVS) > BIOS-e820: 000000003fff0000 - 0000000040000000 (reserved) > BIOS-e820: 00000000fecf0000 - 00000000fecf1000 (reserved) > BIOS-e820: 00000000fed20000 - 00000000feda0000 (reserved) >127MB HIGHMEM available. >896MB LOWMEM available. >found SMP MP-table at 000ff780 >On node 0 totalpages: 261936 > DMA zone: 4096 pages, LIFO batch:1 > Normal zone: 225280 pages, LIFO batch:31 > HighMem zone: 32560 pages, LIFO batch:15 >DMI 2.3 present. >Intel MultiProcessor Specification v1.4 > Virtual Wire compatibility mode. >OEM ID: Product ID: Canterwood-P APIC at: 0xFEE00000 >Processor #0 15:3 APIC version 20 >I/O APIC #2 Version 32 at 0xFEC00000. >Enabling APIC mode: Flat. Using 1 I/O APICs >Processors: 1 >Allocating PCI resources starting at 50000000 (gap: 40000000:becf0000) >Built 1 zonelists >Kernel command line: root=/dev/sda2 >mapped APIC to ffffd000 (fee00000) >mapped IOAPIC to ffffc000 (fec00000) >Initializing CPU#0 >PID hash table entries: 4096 (order: 12, 65536 bytes) >Detected 3392.200 MHz processor. >Using tsc for high-res timesource >Console: colour VGA+ 80x25 >Dentry cache hash table entries: 131072 (order: 7, 524288 bytes) >Inode-cache hash table entries: 65536 (order: 6, 262144 bytes) >Memory: 1032496k/1047744k available (2816k kernel code, 14400k reserved, >1007k >data, 216k init, 130168k highmem) >Checking if this processor honours the WP bit even in supervisor mode... Ok. >Calibrating delay using timer specific routine.. 6792.41 BogoMIPS >(lpj=13584833) >Mount-cache hash table entries: 512 >CPU: After generic identify, caps: bfebfbff 00000000 00000000 00000000 >0000441d >00000000 00000000 >CPU: After vendor identify, caps: bfebfbff 00000000 00000000 00000000 >0000441d >00000000 00000000 >monitor/mwait feature present. >using mwait in idle threads. >CPU: Trace cache: 12K uops, L1 D cache: 16K >CPU: L2 cache: 1024K >CPU: Physical Processor ID: 0 >CPU: After all inits, caps: bfebfbff 00000000 00000000 00000080 0000441d >00000000 00000000 >Intel machine check architecture supported. >Intel machine check reporting enabled on CPU#0. >CPU0: Intel P4/Xeon Extended MCE MSRs (12) available >CPU0: Thermal monitoring enabled >mtrr: v2.0 (20020519) >Enabling fast FPU save and restore... done. >Enabling unmasked SIMD FPU exception support... done. >Checking 'hlt' instruction... OK. >CPU0: Intel(R) Pentium(R) 4 CPU 3.40GHz stepping 04 >Total of 1 processors activated (6792.41 BogoMIPS). >ENABLING IO-APIC IRQs >..TIMER: vector=0x31 pin1=2 pin2=0 >Brought up 1 CPUs ><<<Snip>>> > > >Steps to reproduce: > I've personally reproduced this issue on two boxes with almost duplicate >hardware setups. I compiled the kernel with these options in the config >for the >CPU: > >CONFIG_X86_PC=y >CONFIG_MPENTIUM4=y >CONFIG_X86_CMPXCHG=y >CONFIG_X86_XADD=y >CONFIG_X86_L1_CACHE_SHIFT=7 >CONFIG_RWSEM_XCHGADD_ALGORITHM=y >CONFIG_GENERIC_CALIBRATE_DELAY=y >CONFIG_X86_WP_WORKS_OK=y >CONFIG_X86_INVLPG=y >CONFIG_X86_BSWAP=y >CONFIG_X86_POPAD_OK=y >CONFIG_X86_GOOD_APIC=y >CONFIG_X86_INTEL_USERCOPY=y >CONFIG_X86_USE_PPRO_CHECKSUM=y >CONFIG_HPET_TIMER=y >CONFIG_HPET_EMULATE_RTC=y >CONFIG_SMP=y >CONFIG_NR_CPUS=32 >CONFIG_SCHED_SMT=y >CONFIG_PREEMPT=y >CONFIG_PREEMPT_BKL=y >CONFIG_X86_LOCAL_APIC=y >CONFIG_X86_IO_APIC=y >CONFIG_X86_TSC=y >CONFIG_X86_MCE=y >CONFIG_X86_MCE_NONFATAL=y >CONFIG_X86_MCE_P4THERMAL=y > >------- You are receiving this mail because: ------- >You are on the CC list for the bug, or are watching someone who is. >- >To unsubscribe from this list: send the line "unsubscribe linux-acpi" in >the body of a message to [EMAIL PROTECTED] >More majordomo info at http://vger.kernel.org/majordomo-info.html - To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
