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Date: Wed, 15 Jul 2009 17:03:43 +0100
From: Dave Korn <dave DOT korn DOT cygwin AT googlemail DOT com>
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To: cygwin AT cygwin DOT com
Subject: Re: perl threads on 2008 R2 64bit = crash ( was: perl 5.10 threads  	on 1.5.25 = instant crash )
References: <20090714185506 DOT GB12236 AT ednor DOT casa DOT cgf DOT cx> <20090714190436 DOT GO27613 AT calimero DOT vinschen DOT de> <C795A3B019414FFC84425368B30B83F1 AT multiplay DOT co DOT uk> <20090714200631 DOT GP27613 AT calimero DOT vinschen DOT de> <F24D5DF71BEC447DB0E080A0D6451ABB AT multiplay DOT co DOT uk> <20090714205617 DOT GA12534 AT ednor DOT casa DOT cgf DOT cx> <8541BCA91FF64580AA7A8065FBF9C938 AT multiplay DOT co DOT uk> <39B3B148DA514671BB2E1AE46946169C AT multiplay DOT co DOT uk> <20090715000331 DOT GA5635 AT ednor DOT casa DOT cgf DOT cx> <6D01817BC10A4430AFE7A590CC935C09 AT multiplay DOT co DOT uk> <20090715152139 DOT GA694 AT calimero DOT vinschen DOT de>
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Corinna Vinschen wrote:

> What happens is that this statement
> 
>   if ((*object)->magic != magic)
> 
> in the function thread.cc:verifyable_object_isvalid throws an exception
> because *object is NULL.  This should be covered by the myfault handler
> in this function but for some reason it isn't.

  So, set a "*object == 0" conditional breakpoint on that line and see what
the SEH chain looks like?

    cheers,
      DaveK


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