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[Octave-bug-tracker] [bug #32137] help command causes hang

From: Michael Godfrey
Subject: [Octave-bug-tracker] [bug #32137] help command causes hang
Date: Sun, 16 Jan 2011 06:31:19 +0000
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv: Gecko/20110103 Fedora/3.6.13-1.fc14 Firefox/3.6.13


                 Summary: help command causes hang
                 Project: GNU Octave
            Submitted by: godfrey
            Submitted on: Sun 16 Jan 2011 06:31:19 AM GMT
                Category: Interpreter
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Crash
                  Status: None
             Assigned to: None
         Originator Name: godfrey
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: GNU/Linux



I sent the email below to the maintainer list on 7/28/2010, but
a similar hang happened to me using the current development system. This is a
difficult problem to examine since it happens
randomly, and the exact sequence that triggers it seems to change.

In the text attached I was able to cause the failure while running under gdb.
 I hope this helps someone to
find the problem.

It would be a worry if the coming release goes out with this problem.  When
it happens all current work is lost since the
only recovery is to close the window, or kill -9 from another

The original hang happened when I ssh'ed into another machine
and ran:
help find
>>hang here<<  requires kill -9

This sequence produced the attached gdb output.

The most recent hang was triggered by
help strcmp

so, the string following the find seems not to be the


File Attachments:

Date: Sun 16 Jan 2011 06:31:19 AM GMT  Name: hang_help_find  Size: 8kB   By:



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