[Stackless] Windows 2.7.6 stability

Kristján Valur Jónsson kristjan at ccpgames.com
Mon Feb 3 12:13:24 CET 2014

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.


> -----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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