any cpu hotplug changes in 2.6.24-current-git?

any cpu hotplug changes in 2.6.24-current-git?

[Pavel Machek]

Hi!

Are there any recent changes in cpu hotplug? I have suspend (random)
problems, nosmp seems to fix it, and last messages in the "it hangs"
case are from cpu hotplug...
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

Re: any cpu hotplug changes in 2.6.24-current-git?

[Rafael J. Wysocki]

On Wednesday, 6 of February 2008, Pavel Machek wrote:
> Hi!

Hi,

> Are there any recent changes in cpu hotplug? I have suspend (random)
> problems, nosmp seems to fix it, and last messages in the "it hangs"
> case are from cpu hotplug...

I also have problems like this, investigating.

Please check if that started to trigger after the scheduler changes (you'd
need to go to commit b47711bfbcd4eb77ca61ef0162487b20e023ae55 IIRC).

Thanks,
Rafael

Re: any cpu hotplug changes in 2.6.24-current-git?

[Gregory Haskins]

Pavel Machek wrote:
> Hi!
> 
> Are there any recent changes in cpu hotplug? I have suspend (random)
> problems, nosmp seems to fix it, and last messages in the "it hangs"
> case are from cpu hotplug...
> 									Pavel

Hi Pavel,
   Can you send along your cpuinfo?

-Greg

Re: any cpu hotplug changes in 2.6.24-current-git?

[Pavel Machek]

Hi!

>> Are there any recent changes in cpu hotplug? I have suspend (random)
>> problems, nosmp seems to fix it, and last messages in the "it hangs"
>> case are from cpu hotplug...

>   Can you send along your cpuinfo?

It happened on more than one machine, one cpuinfo is:

processor       : 1
vendor_id       : GenuineIntel
cpu family      : 6
model           : 14
model name      : Genuine Intel(R) CPU           T2400  @ 1.83GHz
stepping        : 8
cpu MHz         : 1000.000
cache size      : 2048 KB
physical id     : 0
siblings        : 2
core id         : 1
cpu cores       : 2
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 10
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
mca cmov pat clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx
constant_tsc arch_perfmon bts pni monitor vmx est tm2 xtpr
bogomips        : 3657.58
clflush size    : 64

									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

Re: any cpu hotplug changes in 2.6.24-current-git?

[Gregory Haskins]

[-- Attachment #1: Type: text/plain, Size: 1821 bytes --]

Pavel Machek wrote:
> Hi!
>
>   
>>> Are there any recent changes in cpu hotplug? I have suspend (random)
>>> problems, nosmp seems to fix it, and last messages in the "it hangs"
>>> case are from cpu hotplug...
>>>       
>
>   
>>   Can you send along your cpuinfo?
>>     
>
> It happened on more than one machine, one cpuinfo is:
>   
Ah, ok.  This one is a C2D, correct?  The only reason I asked is that 
someone was reporting an s2ram problem on P4s on some of that 
root-domain logic I submitted a little while ago (and was merged in 
.25), whereas C2D seemed fine.  That doesn't mean anything here, 
really.  The problem could still be my code, or it might be unrelated.  
I was just wondering if you also had a P4 on the troubled systems.

So is your problem on suspend or resume?  (or both?)  (I know you 
mentioned it was random problems, but I wasn't sure if you could qualify 
that further)

Any info you can provide will be appreciated. 

-Greg


> processor       : 1
> vendor_id       : GenuineIntel
> cpu family      : 6
> model           : 14
> model name      : Genuine Intel(R) CPU           T2400  @ 1.83GHz
> stepping        : 8
> cpu MHz         : 1000.000
> cache size      : 2048 KB
> physical id     : 0
> siblings        : 2
> core id         : 1
> cpu cores       : 2
> fdiv_bug        : no
> hlt_bug         : no
> f00f_bug        : no
> coma_bug        : no
> fpu             : yes
> fpu_exception   : yes
> cpuid level     : 10
> wp              : yes
> flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
> mca cmov pat clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx
> constant_tsc arch_perfmon bts pni monitor vmx est tm2 xtpr
> bogomips        : 3657.58
> clflush size    : 64
>
> 									Pavel
>   



[-- Attachment #2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 250 bytes --]

Re: any cpu hotplug changes in 2.6.24-current-git?

[Pavel Machek]

On Wed 2008-02-06 19:49:19, Gregory Haskins wrote:
> Pavel Machek wrote:
>> Hi!
>>
>>   
>>>> Are there any recent changes in cpu hotplug? I have suspend (random)
>>>> problems, nosmp seems to fix it, and last messages in the "it hangs"
>>>> case are from cpu hotplug...
>>>>       
>>
>>   
>>>   Can you send along your cpuinfo?
>>>     
>>
>> It happened on more than one machine, one cpuinfo is:
>>   
> Ah, ok.  This one is a C2D, correct?  The only reason I asked is that 

I don't know what "C2D" means... core2duo? Yes, this is core2duo.

> someone was reporting an s2ram problem on P4s on some of that root-domain 
> logic I submitted a little while ago (and was merged in .25), whereas C2D 
> seemed fine.  That doesn't mean anything here, really.  The problem could 
> still be my code, or it might be unrelated.  I was just wondering if you 
> also had a P4 on the troubled systems.
>
> So is your problem on suspend or resume?  (or both?)  (I know you mentioned 
> it was random problems, but I wasn't sure if you could qualify that 
> further)

It dies at suspend, always in same place, but not always.

OTOH last few suspends worked for me, not sure what changed...

> Any info you can provide will be appreciated. 
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html