From owner-freebsd-current@FreeBSD.ORG Sat May 2 07:50:54 2009 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 8672D1065675; Sat, 2 May 2009 07:50:54 +0000 (UTC) (envelope-from pluknet@gmail.com) Received: from mail-fx0-f162.google.com (mail-fx0-f162.google.com [209.85.220.162]) by mx1.freebsd.org (Postfix) with ESMTP id AEBFA8FC1D; Sat, 2 May 2009 07:50:53 +0000 (UTC) (envelope-from pluknet@gmail.com) Received: by fxm6 with SMTP id 6so2639983fxm.43 for ; Sat, 02 May 2009 00:50:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:cc:content-type :content-transfer-encoding; bh=gjEydPHzL9cgUR6C25BFHHbOw6bqrloqWj2Oy4p4A+o=; b=r9sd7iTrlAVUx+bnWuT+bSe2PrnL4nHh4fHvIgGBvkB5Zb57CPYom03QalmQGufE+o 2cwpwv9MNb6ZV1fo8Xc0FTEwBJM2gp6wAvfgTcUE4dpPAtQ4EN8if0CdKqL2lK6rf3yv dzPjVvaGBccb32Y791/jkasU2xJArvmMBCPnw= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; b=VJ6RhAGahAQNphBDmlOy6GisxaHqCfa9yzgRxMot5FGpXezU1DOtm4cqp6PoNzsKax CJxNIbsuzCF49rHX2KxChOGlJ5TeuxroNInA/POiShx+G/tgzaunjHgp2cj9XW15S1HF aNotv6Oo8zhiAKqOOxrog02UX8II5mptZAY+4= MIME-Version: 1.0 Received: by 10.103.218.9 with SMTP id v9mr2112961muq.78.1241250652733; Sat, 02 May 2009 00:50:52 -0700 (PDT) In-Reply-To: <200905011610.42613.jkim@FreeBSD.org> References: <20090430013428.cb4f804b.nork@FreeBSD.org> <200905011610.42613.jkim@FreeBSD.org> Date: Sat, 2 May 2009 11:50:52 +0400 Message-ID: From: pluknet To: Jung-uk Kim Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: freebsd-current@freebsd.org, Jeff Roberson Subject: Re: cannot compile sched_ule without options SMP X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 02 May 2009 07:50:54 -0000 2009/5/2 Jung-uk Kim : > On Thursday 30 April 2009 11:04 pm, pluknet wrote: >> 2009/5/1 pluknet : >> > 2009/5/1 Jeff Roberson : >> >> On Thu, 30 Apr 2009, pluknet wrote: >> >>> 2009/4/30 Jeff Roberson : >> >>>> On SMP machines you should now see output like this: >> >>>> FreeBSD/SMP: Multiprocessor System Detected: 8 CPUs >> >>>> FreeBSD/SMP: 1 package(s) x 4 core(s) x 2 SMT threads >> >>>> >> >>>> If you detect any irregularities with kern.sched.topology_spec >> >>>> or this dmesg >> >>>> line please report them. >> >>> >> >>> Hi, Jeff. >> >>> >> >>> I have such mismatch. This is an Intel E7200. >> >>> >> >>> FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs >> >>> FreeBSD/SMP: 1 package(s) x 1 core(s) x 2 HTT threads >> >>> cpu0 (BSP): APIC ID: 0 >> >>> cpu1 (AP/HT): APIC ID: 1 >> >>> >> >>> So it should be instead: 1 package(s) x 2 core(s) >> >>> cpu0 (BSP): APIC ID: 0 >> >>> cpu1 (AP): APIC ID: 1 >> >> >> >> Can you please repeat the following steps as I have done here: >> > >> > (kgdb) p/x cpu_high >> > $1 = 0x2 >> > (kgdb) p/x cpu_cores >> > $2 = 0x1 >> > (kgdb) p/x cpu_logical >> > $3 = 0x2 >> > (kgdb) p/x cpu_feature >> > $4 = 0xbfebfbff >> > (kgdb) p/x logical_cpus >> > $5 = 0x2 >> > (kgdb) p/x hyperthreading_cpus >> > $6 = 0x2 >> >> Follow up myself: >> >> What is embarrassing me is HTT feature enabled. May the reason be >> in a buggy CPUID ? > > No, the flag does not mean it supports Hyperthreading. It means more > than one logical core is supported (multi-threading) although the > name didn't change for historical reason. ;-) > I see now. > Can you try the attached patch? > Nice, it works! cpu_mp_probe(): mp_ncpus = 2 FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs FreeBSD/SMP: 1 package(s) x 2 core(s) cpu0 (BSP): APIC ID: 0 cpu1 (AP): APIC ID: 1 (kgdb) p/x cpu_high $1 = 0xa (kgdb) p/x cpu_cores $2 = 0x2 (kgdb) p/x cpu_logical $3 = 0x1 (kgdb) p/x cpu_feature $4 = 0xbfebfbff (kgdb) p/x logical_cpus $5 = 0x2 (kgdb) p/x hyperthreading_cpus $6 = 0x1 -- wbr, pluknet