Date: Fri, 20 Feb 2009 12:56:04 +0300 From: pluknet <pluknet@gmail.com> To: martinko <gamato@users.sf.net> Cc: freebsd-stable@freebsd.org Subject: Re: What is the real number of CPUs ? -- was: Re: Problem with new Intel DX board and i7 Processor on reboot attempt (locks) Message-ID: <a31046fc0902200156y1a56c9bcr1499b4b7cfd6d2ee@mail.gmail.com> In-Reply-To: <gnkq1s$d3i$1@ger.gmane.org> References: <499C4E8E.1020403@denninger.net> <200902182230.n1IMUg78008294@lava.sentex.ca> <gnkq1s$d3i$1@ger.gmane.org>
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2009/2/20 martinko <gamato@users.sf.net>: > Mike Tancsa wrote: >> >> At 01:08 PM 2/18/2009, Karl Denninger wrote: >>> >>> Running 7-STABLE, compiled last night. >>> >>> When attempting to reboot the system freezes at "stopping other CPUs" a= nd >>> has to be hard-reset with either the power button or the RESET switch. = =A0The >>> problem is easily reproduced - typing "reboot" produces it :-) >>> >>> I'm wondering if that ACPI warning in the boot sequence is involved in >>> this, and if so, if there is a recommended workaround? >>> >>> Here's the "dmesg" from the subject system: >> >> Hi, >> =A0 =A0 =A0 =A0I have the same chipset, but dont see the reboot problem = on >> RELENG_7 from Jan 7th. (via "shutdown -r now") =A0Have you checked for B= IOS >> updates ? >> >> =A0 =A0 =A0 =A0---Mike >> >> >> CPU: Intel(R) Core(TM) i7 CPU =A0 =A0 =A0 =A0 920 =A0@ 2.67GHz (2666.77-= MHz >> 686-class CPU) >> =A0Origin =3D "GenuineIntel" =A0Id =3D 0x106a4 =A0Stepping =3D 4 >> >> =A0Features=3D0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTR= R,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS, >> HTT,TM,PBE> >> >> =A0Features2=3D0x98e3bd<SSE3,DTES64,MON,DS_CPL,VMX,EST,TM2,SSSE3,CX16,xT= PR,PDCM,SSE4.1,SSE4.2,POPCNT> >> =A0AMD Features=3D0x28100000<NX,RDTSCP,LM> >> =A0AMD Features2=3D0x1<LAHF> >> =A0Cores per package: 8 >> =A0Logical CPUs per core: 2 >> real memory =A0=3D 3212734464 (3063 MB) >> avail memory =3D 3139563520 (2994 MB) >> ACPI APIC Table: <INTEL =A0DX58SO =A0> >> FreeBSD/SMP: Multiprocessor System Detected: 8 CPUs >> =A0cpu0 (BSP): APIC ID: =A00 >> =A0cpu1 (AP): APIC ID: =A01 >> =A0cpu2 (AP): APIC ID: =A02 >> =A0cpu3 (AP): APIC ID: =A03 >> =A0cpu4 (AP): APIC ID: =A04 >> =A0cpu5 (AP): APIC ID: =A05 >> =A0cpu6 (AP): APIC ID: =A06 >> =A0cpu7 (AP): APIC ID: =A07 >> ACPI Warning (tbfadt-0505): Optional field "Pm2ControlBlock" has zero >> address or length: =A0 =A0 =A0 =A00 =A0 =A0 450/0 [20070320] >> ioapic0 <Version 2.0> irqs 0-23 on motherboard >> > > Hi, > > I don't get the numbers of CPUs -- AFAIK Core i7 has 4 cores with 2 logic= al > CPUs per core (hyper-threading?) and that makes 8 logical CPUs. =A0Above = I see > 8 cores per package (!) _but_ 8 x 2 =3D 16 while only 8 CPUs are detected= and > started. =A0Could someone explain pls ? The term "package" implies a physical socket. --=20 wbr, pluknet
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