cannot compile sched_ule without options SMP
Jeff Roberson
jroberson at jroberson.net
Thu Apr 30 22:06:17 UTC 2009
On Thu, 30 Apr 2009, pluknet wrote:
> 2009/4/30 Jeff Roberson <jroberson at 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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