Message-ID: <3A7ECF6AFCAC428BB48BDA89F116401E@multiplay.co.uk>
From: "Steven Hartland" <killing@multiplay.co.uk>
To: "Dave Korn" <dave.korn.cygwin@googlemail.com>, <cygwin@cygwin.com>
References: <8541BCA91FF64580AA7A8065FBF9C938@multiplay.co.uk> <39B3B148DA514671BB2E1AE46946169C@multiplay.co.uk> <20090715000331.GA5635@ednor.casa.cgf.cx> <6D01817BC10A4430AFE7A590CC935C09@multiplay.co.uk> <20090715152139.GA694@calimero.vinschen.de> <4A5DFDDF.2000904@gmail.com> <20090715162243.GL14502@ednor.casa.cgf.cx> <4A5E0AB1.9020201@gmail.com> <20090715185636.GA16211@ednor.casa.cgf.cx> <4A5E2ED6.3070502@gmail.com> <20090715194539.GZ27613@calimero.vinschen.de> <4A5E3F1F.9040103@gmail.com>
Subject: Re: perl threads on 2008 R2 64bit = crash ( was: perl 5.10 threads  	on 1.5.25 = instant crash )
Date: Wed, 15 Jul 2009 22:28:00 +0100
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----- Original Message ----- 
From: "Dave Korn" 
> (gdb) b 113 if ((*object) == 0)
> No symbol "object" in current context.
> (gdb)
> 
>  Ah, that's bad.  It might work on a DLL compiled with -O0 -g, but here we
> have a problem that the function gets inlined everywhere it's called.  So
> instead I set an unconditional breakpoint there and let it run until I hit it:

From my experience last night you should be able to use something like:-
b 113 if ( 0 == (**(verifyable_object **)objectptr)

If not here at least it hits that break ~ 280 times before blowing up so
setting a conditional on that occurrence should help.

Unfortunately I'm currently testing a none threaded compile on the machine
so cant check myself just now.


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