Re: [Zope-dev] Zope/Python crashing

[Myroslav Opyr]

Matthew T. Kromer wrote:

> Myroslav Opyr wrote:
>
>> For FreeBSD there is another pthreads related bug in Python. And 
>> quick-patch from 
>> https://sourceforge.net/tracker/?func=detail&aid=554841&group_id=5470&atid=305470 
>> with THREAD_STACK_SIZE=0x2 solves the problem. But it is quick 
>> and dirty hack. Will it be solved in next bugfix release of Python? 
>> Whom/where I have to contact to have progress regarding the issue?
>>
>> I'll post comment into SF tracker because site which crashed 
>> previously works fine now (for 5 days already)... Is that sufficient? 
>> This dirty patch is not acceptable and clean solution have to take 
>> place. Should I take part and try to develop one?
>
> Well, the way you start threading with pthreads requres a single 
> initializer for the stack size; once you have initialized the 
> threading environment you cannot change the stacksize later, to the 
> best of my knowledge. 

Ok. What general solution should be? One of the possible ways would be 
to reserve big stack enough for all cases but only small portion of it 
(generally used by apps) turn into phisical memory. It should be default 
behavior for majority of OSes/Libs, shouldn't it?

> I suppose you could finesse a new python startup argument, or 
> environment variable check. 

+1 for startup argument
-1 for environment

> I think the SF tracker is the best way to approach that. 

You mean discussion about the issue shoud take place in tracker?

m.
-- 
Myroslav Opyr
zope.net.ua  ° Ukrainian Zope Hosting
e-mail: [EMAIL PROTECTED] 
cell: +380 50.3174578






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Re: [Zope-dev] Zope/Python crashing

[Matthew T. Kromer]

Myroslav Opyr wrote:

>
> For FreeBSD there is another pthreads related bug in Python. And 
> quick-patch from 
> https://sourceforge.net/tracker/?func=detail&aid=554841&group_id=5470&atid=305470 
> with THREAD_STACK_SIZE=0x2 solves the problem. But it is quick and 
> dirty hack. Will it be solved in next bugfix release of Python? 
> Whom/where I have to contact to have progress regarding the issue?
>
> I'll post comment into SF tracker because site which crashed 
> previously works fine now (for 5 days already)... Is that sufficient? 
> This dirty patch is not acceptable and clean solution have to take 
> place. Should I take part and try to develop one?


Well, the way you start threading with pthreads requres a single 
initializer for the stack size; once you have initialized the threading 
environment you cannot change the stacksize later, to the best of my 
knowledge.

I suppose you could finesse a new python startup argument, or 
environment variable check.

I think the SF tracker is the best way to approach that.

-- 
Matt Kromer
Zope Corporation  http://www.zope.com/ 





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Re: [Zope-dev] Zope/Python crashing

[Myroslav Opyr]

Matthew T. Kromer wrote:

> Ahsan Imam wrote:
>
>> I was going through the zope archive mail and saw message posted by
>> Matthew T. Kromer regarding crashing problems with Python 2.1.2. It
>> instructed to increase the #define PyTrash_UNWIND_LEVEL from 50 500.
>> I just downloaded python 2.1.3. Do I still have to edit the object.h
>> file before I compile it. 
>
> No, Python 2.1.3 doesn't need to be patched like that -- that was just 
> a temporary suggestion while we isolated where the problem was. 

For FreeBSD there is another pthreads related bug in Python. And 
quick-patch from 
https://sourceforge.net/tracker/?func=detail&aid=554841&group_id=5470&atid=305470 
with THREAD_STACK_SIZE=0x2 solves the problem. But it is quick and 
dirty hack. Will it be solved in next bugfix release of Python? 
Whom/where I have to contact to have progress regarding the issue?

I'll post comment into SF tracker because site which crashed previously 
works fine now (for 5 days already)... Is that sufficient? This dirty 
patch is not acceptable and clean solution have to take place. Should I 
take part and try to develop one?

Regards,

Myroslav
-- 
Myroslav Opyr
zope.net.ua  ° Ukrainian Zope Hosting
e-mail: [EMAIL PROTECTED] 
cell: +380 50.3174578






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Re: [Zope-dev] Zope/Python crashing

[Dario Lopez-Kästen]

From: "Ahsan Imam" <[EMAIL PROTECTED]>
> I just downloaded python 2.1.3. Do I still have to edit the object.h
> file before I compile it.  
> 

no, 2.1.3 includes bugfixes that specifically address those issues.

/dario




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Re: [Zope-dev] Zope/Python crashing

[Matthew T. Kromer]

Ahsan Imam wrote:

>Hello,
>
>I was going through the zope archive mail and saw message posted by
>Matthew T. Kromer regarding crashing problems with Python 2.1.2. It
>instructed to increase the 
>#define PyTrash_UNWIND_LEVEL from 50 500. 
>
>I just downloaded python 2.1.3. Do I still have to edit the object.h
>file before I compile it.  
>
>Thanks
>  
>

No, Python 2.1.3 doesn't need to be patched like that -- that was just a 
temporary suggestion while we isolated where the problem was.

-- 
Matt Kromer
Zope Corporation  http://www.zope.com/ 





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[Zope-dev] Zope/Python crashing

[Ahsan Imam]

Hello,

I was going through the zope archive mail and saw message posted by
Matthew T. Kromer regarding crashing problems with Python 2.1.2. It
instructed to increase the 
#define PyTrash_UNWIND_LEVEL from 50 500. 

I just downloaded python 2.1.3. Do I still have to edit the object.h
file before I compile it.  

Thanks


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