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Mail Archives: cygwin-developers/2001/09/21/12:56:57

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Date: Fri, 21 Sep 2001 20:55:23 +0400
From: egor duda <deo AT logos-m DOT ru>
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Reply-To: egor duda <cygwin-developers AT cygwin DOT com>
Organization: deo
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Message-ID: <7011531551.20010921205523@logos-m.ru>
To: Jason Tishler <jason AT tishler DOT net>
CC: cygwin-developers AT cygwin DOT com
Subject: Re: JIT debugging (was Re: Quick testfeedback...)
In-Reply-To: <20010921091457.C3316@dothill.com>
References: <20010921091457 DOT C3316 AT dothill DOT com>
MIME-Version: 1.0

Hi!

Friday, 21 September, 2001 Jason Tishler jason AT tishler DOT net wrote:

JT> I finally found out why JIT debugging was not working for me.  It appears
JT> that I needed to "chmod +x c:/debug.bat".  After making c:/debug.bat
JT> executable, I was able to trigger JIT debugging with your test program:

hmm. it looks almost obvious for windows, where file are created with
full access for everyone, but it certainly not so for unix. i'll try to
make this point a bit clearer.

JT> Unfortunately, JIT debugging is not triggering with the following threaded
JT> Python problem:

JT> test_socket
JT> C:\home\jt\src\python-2.1.1\python.exe: *** unable to remap C:\home\jt\src\python-2.1.1\build\lib.cygwin-1.3.4-i686-2.1\rotor.dll to same address as parent -- 0x69180000
JT>       0 [main] python 2016 sync_with_child: child 2100(0x288) died before initialization with status code 0x1
JT>    3716 [main] python 2016 sync_with_child: *** child state child loading dlls  test test_socket crashed -- exceptions.OSError: [Errno 11] Resource temporarily unavailable

JT> Should JIT debugging trigger for the above condition too?

no. JIT debugging facility is being initialized at program startup.
early enough, but not too early. if something goes wrong before that, JIT
debugger won't be called.

see file 'how-to-debug-cygwin.txt' in winsup/cygwin/ directory of
sources. it contains some techniques that may help in this case (as well as
in the others).

Egor.            mailto:deo AT logos-m DOT ru ICQ 5165414 FidoNet 2:5020/496.19

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