svn commit: r224217 - in head/sys: amd64/include ia64/include mips/conf sys

[Attilio Rao]

2011/7/20 Pan Tsu <inyaoo at gmail.com>:
> Attilio Rao <attilio at FreeBSD.org> writes:
>
>> Author: attilio
>> Date: Tue Jul 19 13:00:30 2011
>> New Revision: 224217
>> URL: http://svn.freebsd.org/changeset/base/224217
>>
>> Log:
>>   Bump MAXCPU for amd64, ia64 and XLP mips appropriately.
>>   From now on, default values for FreeBSD will be 64 maxiumum supported
>>   CPUs on amd64 and ia64 and 128 for XLP. All the other architectures
>>   seem already capped appropriately (with the exception of sparc64 which
>>   needs further support on jalapeno flavour).
>>
>>   Bump __FreeBSD_version in order to reflect KBI/KPI brekage introduced
>>   during the infrastructure cleanup for supporting MAXCPU > 32. This
>>   covers cpumask_t retiral too.
>>
>>   The switch is considered completed at the present time, so for whatever
>>   bug you may experience that is reconducible to that area, please report
>>   immediately.
>>
>>   Requested by:       marcel, jchandra
>>   Tested by:  pluknet, sbruno
>>   Approved by:        re (kib)
>>
>> Modified:
>>   head/sys/amd64/include/param.h
>>   head/sys/ia64/include/param.h
>>   head/sys/mips/conf/XLP
>>   head/sys/mips/conf/XLP64
>>   head/sys/mips/conf/XLPN32
>>   head/sys/sys/param.h
>>
>> Modified: head/sys/amd64/include/param.h
>> ==============================================================================
>> --- head/sys/amd64/include/param.h    Tue Jul 19 12:41:57 2011        (r224216)
>> +++ head/sys/amd64/include/param.h    Tue Jul 19 13:00:30 2011        (r224217)
>> @@ -65,7 +65,7 @@
>>
>>  #if defined(SMP) || defined(KLD_MODULE)
>>  #ifndef MAXCPU
>> -#define MAXCPU               32
>> +#define MAXCPU               64
>>  #endif
>>  #else
>>  #define MAXCPU               1
>
> Do you plan to bump MEMSTAT_MAXCPU, too?
>
>  $ vmstat -z
>  vmstat: memstat_sysctl_uma: Too many CPUs
>  $ vmstat -m
>  vmstat: memstat_sysctl_malloc: Too many CPUs
>
>  $ sysctl kern. | grep smp.\*cpus
>  kern.smp.maxcpus: 64
>  kern.smp.cpus: 2
>

Jeeeez, we seriously need to fix this getting rid of the static values.

Anyway, can you try the following patch?:
http://www.freebsd.org/~attilio/memstat_maxcpu.diff

It is going to add some memory overhead for i386 case.

Thanks,
Attilio


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