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Date: Tue, 1 Nov 2005 09:32:13 -0500
From: Christopher Faylor <cgf-no-personal-reply-please AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: Hang with 1.5.18, 1.5.19 snapshot 20051029
Message-ID: <20051101143213.GA6427@trixie.casa.cgf.cx>
Reply-To: cygwin AT cygwin DOT com
References: <34588B2E-B3B4-4B12-A1C2-7D0AD150E475 AT rehley DOT net> <43677321 DOT 9070902 AT scytek DOT de> <20051101135905 DOT GB3098 AT trixie DOT casa DOT cgf DOT cx> <4367796C DOT 3040603 AT scytek DOT de>
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On Tue, Nov 01, 2005 at 09:19:24AM -0500, Volker Quetschke wrote:
>Christopher Faylor wrote:
>>On Tue, Nov 01, 2005 at 08:52:33AM -0500, Volker Quetschke wrote:
>>>Peter Rehley wrote:
>>>
>>>>I have a problem where a configure script is hanging.  I first saw  the 
>>>>behavior in 1.5.18, and it's still there in the latest snapshot.  The 
>>>>only machines that we are seeing it hang on are windows 2000  machines, 
>>>>sp4, with duel pentinum 933 mhz processors, and using ssh  to login to 
>>>>the machine.  I haven't been able to reproduce the  problem on single 
>>>>processor machines or when ssh is not used.
>>>>
>>>>Under 1.5.18, the hang occurred about 1 in ten times in the  
>>>>test_configure script (provided in the bash_test.tar.bz2 file.  Under  
>>>>the latest snapshot it's about 1 in 900.
>>>>
>>>>When the hang happens it appears that a process is completed, but  still 
>>>>can be found in the process directory.  The cmdline file says  
>>>><defunct>, but the process still shows up in the process list (ps - 
>>>>ef).  If I try to clean up by killing the process, the kill command  
>>>>says that the process doesn't exist.  The only way that I can make  the 
>>>>hung process go away is by using the task manager to kill the  process.
>>>
>>>Your symptoms look familiar to our OOo build hang. I'm curious if in
>>>your case a:
>>>
>>>$ ls /proc/<hangpid>/fd
>>>
>>>also cures the hang. (Sometimes this has to be issued several times.)
>
>>This would make it "not a regression", if so.
>>
>>In fact, I did see some reports that dmake hangs in 1.5.18 in the archives.
>
>Yes, the current snapshots are a lot better than the 1.5.18 release.
>You already fixed all of the problems I could reproduce.  Thanks again,
>this is a lot better than the current release.
>
>But like the last remaining OOo build hang I cannot reproduce this hang
>either.
>
>I tried the script in rxvt and whatever you call it if you use the
>cygwin icon.  It doesn't hang for me.
>
>>I'm wondering if it is YA symptom of:
>>
>>  http://cygwin.com/ml/cygwin/2005-09/msg00923.html
>>
>>since, try as I might, I can't see any way that a process would hang and
>>then become unstuck by performing a "ls /proc/<hangpid>/fd".
>
>*shrug*

"*shrug*"?  Did you look at the message?  There is a proposed workaround
for a windows problem which cygwin is running into.  Maybe following the
instructions in that message would help with the OOo build.

cgf

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