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[screen-devel] [bug #30276] Screen hangs

From: Hans Hübner
Subject: [screen-devel] [bug #30276] Screen hangs
Date: Mon, 28 Jun 2010 13:56:12 +0000
User-agent: Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US) AppleWebKit/533.4 (KHTML, like Gecko) Chrome/5.0.375.70 Safari/533.4


                 Summary: Screen hangs
                 Project: GNU Screen
            Submitted by: hans23
            Submitted on: Mon 28 Jun 2010 01:56:11 PM GMT
                Category: Crash/Freeze/Infloop
                Severity: 3 - Normal
                Priority: 5 - Normal
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 4.0.3
           Fixed Release: None
         Planned Release: None
           Work Required: None



Since several years, I have experienced sporadic hangs of screen.  They
happen like this:

One screen hangs, but I can still switch to other screens and also detach.

When I detach and try to reattach, the client process hangs.  It is also
unresponsive to Ctrl-C.  Suspending works.

I observe this behavior both on FreeBSD and Linux.  I could not yet find a
way to reproduce the problem.  It happens rarely, but frequent enough to be a
real annoyance.

If you have a similar problem or any insights, please comment.  I can put
some time into fixing this, but currently I do not have any good theory what
the problem could be.


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