Date: Thu, 30 Apr 2009 12:08:21 -1000 (HST) From: Jeff Roberson <jroberson@jroberson.net> To: pluknet <pluknet@gmail.com> Cc: freebsd-current@freebsd.org Subject: Re: cannot compile sched_ule without options SMP Message-ID: <alpine.BSF.2.00.0904301207360.981@desktop> In-Reply-To: <a31046fc0904301232u1f0bdd15ybe9cdb345bce05a0@mail.gmail.com> References: <20090430013428.cb4f804b.nork@FreeBSD.org> <alpine.BSF.2.00.0904291329280.981@desktop> <a31046fc0904301232u1f0bdd15ybe9cdb345bce05a0@mail.gmail.com>
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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 /boot/kernel/kernel /dev/mem (kgdb) p/x cpu_high $1 = 0xb (kgdb) p/x cpu_cores $2 = 0x4 (kgdb) p/x cpu_logical $3 = 0x2 (kgdb) p/x cpu_feature $4 = 0xbfebfbff (kgdb) p/x logical_cpus $5 = 0x0 (kgdb) p/x hyperthreading_cpus $6 = 0x0 (kgdb) This should give me the information I need to diagnose the problem. Thank you. Jeff > > kern.sched.topology_spec: <groups> > <group level="1" cache-level="0"> > <cpu count="2" mask="0x3">0, 1</cpu> > <flags></flags> > <children> > <group level="3" cache-level="1"> > <cpu count="2" mask="0x3">0, 1</cpu> > <flags><flag name="HTT">HTT group</flag> > </flags> > </group> > </children> > </group> > </groups> > > > > -- > wbr, > pluknet >
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