Date: Fri, 1 May 2009 07:04:13 +0400 From: pluknet <pluknet@gmail.com> To: Jeff Roberson <jroberson@jroberson.net> Cc: freebsd-current@freebsd.org Subject: Re: cannot compile sched_ule without options SMP Message-ID: <a31046fc0904302004r195750f2h586e08d9acf854d1@mail.gmail.com> In-Reply-To: <a31046fc0904301939la407bfek2f342b06c7d3ba29@mail.gmail.com> References: <20090430013428.cb4f804b.nork@FreeBSD.org> <alpine.BSF.2.00.0904291329280.981@desktop> <a31046fc0904301232u1f0bdd15ybe9cdb345bce05a0@mail.gmail.com> <alpine.BSF.2.00.0904301207360.981@desktop> <a31046fc0904301939la407bfek2f342b06c7d3ba29@mail.gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help
2009/5/1 pluknet <pluknet@gmail.com>: > 2009/5/1 Jeff Roberson <jroberson@jroberson.net>: >> On Thu, 30 Apr 2009, pluknet wrote: >> >>> 2009/4/30 Jeff Roberson <jroberson@jroberson.net>: >>>> >>>> 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 ? -- wbr, pluknet
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?a31046fc0904302004r195750f2h586e08d9acf854d1>