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From:	"Frank Seide" <seide AT mac DOT com>
To:	<cygwin AT cygwin DOT com>
Cc:	"'Zhe Feng'" <zfeng AT msrchina DOT research DOT microsoft DOT com>
Subject:	bug report: cygwin lib can't recover after out of memory
Date:	Thu, 7 Feb 2002 10:54:31 +0800
Message-ID:	<FE3A5416EBDD83408F14F09EBA56474402C4F2EB@bjs-msg-01.fareast.corp.microsoft.com>
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Hi,

I observed cygwin getting into a bad state after a
memory-allocation failure, from which I only can
recover by terminating all cygwin processes to unload
the cygwin1.dll.

I run a perl script that gradually allocates memory
until the memory limit of 256 MB (default) is reached.
Perl, as expected, terminates with "Out of Memory!"

However, _after_ the script terminates,
subsequently executed cygwin programs have a problem:

 - a simple "ls" gives
   Segmentation fault (core dumped)

% ls -l
... (works correctly)
% ./test.pl			<-- script to reach mem limit
Out of memory!
% ls -l
Segmentation fault (core dumped)
%

 - trying to open another rxvt window (while the shell in which
  the script terminated is still open) shows the msg
    handle_exceptions: Exception: STATUS_ACCESS_VIOLATION

To recover, I need to exit the shell in which the script
terminated first, such that all cygwin processes are gone
(and cygwin1.dll gets unloaded, I guess).

Thanks,

Frank

Version info:

 - This is perl, version 5.005_03 built for cygwin32
 - WinNT Ver 5.0 build 2195 Service Pack 2
 - Cygwin DLL version info:
        dll major: 1003
        dll minor: 2
        dll epoch: 19
        dll bad signal mask: 19005
        dll old termios: 5
        dll malloc env: 28
        api major: 0
        api minor: 39
        shared data: 3
        dll identifier: cygwin1
        mount registry: 2
        cygnus registry name: Cygnus Solutions
        cygwin registry name: Cygwin
        program options name: Program Options
        cygwin mount registry name: mounts v2
        cygdrive flags: cygdrive flags
        cygdrive prefix: cygdrive prefix
        cygdrive default prefix: 
        build date: Sun May 20 23:28:17 EDT 2001
        shared id: cygwin1S3


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