[Stackless] Windows 2.7.6 stability

lars van Gemerden lars at rational-it.com
Wed Feb 5 13:16:57 CET 2014


I would like to see better PySide compatibility, since my code relies on
stackless and PySide.

The crashes have become less though since maybe a year ago; maybe some
improvements on the PySide?

I am using stackless python 2.7.5.

CL


On Wed, Feb 5, 2014 at 9:55 AM, Kristján Valur Jónsson <
kristjan at ccpgames.com> wrote:

> At one point I had a patch going in stackless, which changed the way we
> extended PyHeapType, IIRC.
> I think this is the way to go, make sure we stay compatible.
>
> > -----Original Message-----
> > From: stackless-bounces at stackless.com [mailto:stackless-
> > bounces at stackless.com] On Behalf Of Richard Tew
> > Sent: 4. febrúar 2014 20:11
> > To: The Stackless Python Mailing List
> > Subject: Re: [Stackless] Windows 2.7.6 stability
> >
> > Well, I think Christian was deep into it, and trying to get the PySide
> people to
> > do a compatibility patch or something.  Last I recall, from several
> months ago.
> >
> > It is indeed a pity we can't say we're compatible with all Python
> extensions,
> > and it would be good to get it fixed.
> >
> > Cheers,
> > Richard.
> >
> > On 2/4/14, Kristján Valur Jónsson <kristjan at ccpgames.com> wrote:
> > > This is so annoying.  Time for another stab at this problem, perhaps?
> > >
> > >> -----Original Message-----
> > >> From: stackless-bounces at stackless.com [mailto:stackless-
> > >> bounces at stackless.com] On Behalf Of Richard Tew
> > >> Sent: 3. febrúar 2014 18:53
> > >> To: The Stackless Python Mailing List
> > >> Subject: Re: [Stackless] Windows 2.7.6 stability
> > >>
> > >> No, thanks for the suggestion.  But this is definitely PySide and
> > >> it's modification of the base object type that stackless also
> modifies.
> > >>
> > >> Cheers,
> > >> Richard.
> > >>
> > >> On 2/4/14, Anselm Kruis <a.kruis at science-computing.de> wrote:
> > >> > Could it be related to the PGO optimised build?
> > >> > As far as I know, the mainline python installer is build without
> PGO.
> > >> > Our installer is build with PGO optimisation.
> > >> >
> > >> > Another question: can you try our 2.7.5 build? It is PGO optimized
> too.
> > >> >
> > >> > Cheers
> > >> >    Anselm
> > >> >
> > >> >
> > >> > Am 03.02.2014 12:13, schrieb Kristján Valur Jónsson:
> > >> >> Hi.
> > >> >> Do you get this only with the installed version?
> > >> >> Could you try replacing it with your own build?  If so, could you
> > >> >> go into the source code and disable stack spilling ?
> > >> >> You have to nerf the macro CSTACK_SAVE_NOW.
> > >> >>
> > >> >> I saw some mysterious crashes recently in a live build in Shanghai
> > >> >> that went away when I disabled this.
> > >> >>
> > >> >> K
> > >> >>
> > >> >>> -----Original Message-----
> > >> >>> From: stackless-bounces at stackless.com [mailto:stackless-
> > >> >>> bounces at stackless.com] On Behalf Of Richard Tew
> > >> >>> Sent: 3. febrúar 2014 03:04
> > >> >>> To: stackless at stackless.com
> > >> >>> Subject: [Stackless] Windows 2.7.6 stability
> > >> >>>
> > >> >>> Hi,
> > >> >>>
> > >> >>> I've got the installer we provide for 2.7.6, on Windows.  And
> > >> >>> I've been getting lots of non-crashing premature exits:
> > >> >>>
> > >> >>> SystemError: unknown opcode
> > >> >>> XXX lineno: 314, opcode: 0
> > >> >>>
> > >> >>> It's not consistently reproducible using running the same code,
> > >> >>> but can be sometimes, and I'm not using any Stackless features.
> > >> >>>
> > >> >>> If I take the mainline python repo and sync to v2.7.6 and
> > >> >>> generate a dll, and put it in c:\python27, all the problems go
> away.
> > >> >>>
> > >> >>> I thought it might be pyside 1.1.2 which I was using, but
> > >> >>> upgraded that and the problem remained with pyside 1.2.1.  That's
> > >> >>> the only external dependency my code uses.
> > >> >>>
> > >> >>> Anyone else using this installer?
> > >> >>>
> > >> >>> Cheers,
> > >> >>> Richard.
> > >> >>>
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-- 
====================================
Lars van Gemerden
lars at rational-it.com
+31 6 26 88 55 39
====================================
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