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Subject:	RE: G++ guru's please comment - Re: FW: pthread_create problem in Cygwin 1.1.8-2]
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Date:	Mon, 9 Apr 2001 11:13:53 +1000
Message-ID:	<EA18B9FA0FE4194AA2B4CDB91F73C0EF79B8@itdomain002.itdomain.net.au>
Thread-Topic:	G++ guru's please comment - Re: FW: pthread_create problem in Cygwin 1.1.8-2]
Thread-Index:	AcDAhmyVy51UsyQ6T0WSHLL8MfwLCgAASgAg
From:	"Robert Collins" <robert DOT collins AT itdomain DOT com DOT au>
To:	<cygwin AT cygwin DOT com>
X-MIME-Autoconverted:	from quoted-printable to 8bit by delorie.com id VAA11648

> -----Original Message-----
> From: Christopher Faylor [mailto:cgf AT redhat DOT com]
> Sent: Monday, April 09, 2001 9:56 AM
> To: cygwin AT cygwin DOT com
> Subject: Re: G++ guru's please comment - Re: FW: 
> pthread_create problem
> in Cygwin 1.1.8-2]
> 
> 
> On Mon, Apr 09, 2001 at 09:38:57AM +1000, Robert Collins wrote:
> >Background: pthread_create starts the new thread with a wrapper
> >function. The wrapper function runs the thread function, and when the
> >user function returns then cleans up the unix structures and calls
> >ExitThread(0); The crash occurs _before_ control returns to 
> the wrapper
> >function. This implies it's a problem in the return code.
> 
> Ok.  Single step the assembly instructions and see if you can find
> out where it is failing.  I still suspect a corrupt stack.
> 
> cgf
> 

I will, once I have a good binary to compare with. I don't know what
return 0; in a try{} should look like.

Just for fun I removed the printf, and the crash went away. It also
never appears with only one thread running.

I've had a quick read of the asembly and will report back.

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