Hi again,
Ok, I can confirm this is recurrent. I have rebooted my desktop without
changing anything (but checking default_smp_affinitty is set to 'f').
After reboot, I checked smp affinitty again, it's still in 'f'. However,
all the apps I start keep having the same behaviour and they start with
affinitty 8.
El martes 1 de mayo de 2012, Wido escribió:
> Never, I haven't. Actually, I did knew it was possible to set the
> affinity, but I was never curious about it until I got this. and checked
> the cpu_smp_affinity and was always set to 'f'
>
> I did, however, installed some time ago 'ulatencyd' and 'schedtool', but I
> uninstalled them (--purge remove) before creating the bug (and yes, the
> system was rebooted after remove the packages).
>
> Would it be possible that those packages screwed something else? After
> changing all my processes affinity, I haven't rebooted the system, so I
> don't know if I'm going to get this again or not. Will check again tomorrow.
>
> cheers
>
> 2012/4/30 Ben Hutchings <b...@decadent.org.uk <javascript:_e({}, 'cvml',
> 'b...@decadent.org.uk');>>
>
>> On Mon, 2012-04-30 at 12:32 -0300, Wido wrote:
>> > Ok, not a kernel bug!
>> >
>> >
>> > My last question 'default taskset is set to mask 8, is that ok?' is
>> > the key. I have a 4 cores system and mask 8 means the 4th core (the
>> > one beeing actually used).
>>
>> Right, it selects CPU 3 only (according to Linux numbering).
>>
>> > I changed all the proccesses affinity to 'f' and then the processes
>> > started to spread in all 4 cores, as it should.
>> >
>> >
>> > Funniest part is, default_smp_affinity is set to 'f', so I don't know
>> > why proccesses start with affinity 8
>>
>> I don't know. Did you explicitly configure the affinity of anything
>> before this?
>>
>> Ben.
>>
>> --
>> Ben Hutchings
>> Design a system any fool can use, and only a fool will want to use it.
>>
>
>
>
> --
> Wido
>
--
Wido
