https://bugs.freedesktop.org/show_bug.cgi?id=55558

          Priority: medium
            Bug ID: 55558
          Assignee: [email protected]
           Summary: hang closing SQL query window
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: [email protected]
          Hardware: x86 (IA32)
            Status: UNCONFIRMED
           Version: 3.7.0.0.alpha0+ Master
         Component: Database
           Product: LibreOffice

Created attachment 68015
  --> https://bugs.freedesktop.org/attachment.cgi?id=68015&action=edit
typescript of gdb session with `thread apply all backtrace full`

Alas, I cannot give a good description of what I was doing, but
perhaps you will forgive me in light of the attached backtrace and
console output.

When I closed the SQL Query window by clicking on the "X" in the title
bar, LibreOffice became unresponsive without using much CPU, and
Metacity displayed a message box

    IT-0-0-2f.odb : Query1 - LibreOffice Base: Query Design [OOO370]
    is not responding.

    You may choose to wait a short while for it to continue or force
    the application to quit entirely.

The file I had open is the attachment to bug 37641.  I was stepping
through macro "main", and the generated spreadsheet was open.  While
the macro was stopped, I ran a couple of SQL queries.  I had run the
macro several times since opening the file.


Yesterday, working with the same .odb file, I saw the same hang when I
tried to close the window showing the Basic souce code.  Earlier
today, running under gdb, the problem refused to happen.


LibreOffice is commit cc1a112, pulled 20121001, built and executed
under ubuntu natty (11.04) with desktop "Ububntu Classic (no
effects)".  In particular ..,

    $ uname -a
    Linux cougar-natty 2.6.38-16-generic #67-Ubuntu SMP Thu Sep 6 18:00:43 UTC
2012 i686 athlon i386 GNU/Linux
    $ gcc --version
    gcc (Ubuntu/Linaro 4.5.2-8ubuntu4) 4.5.2
    Copyright (C) 2010 Free Software Foundation, Inc.
    This is free software; see the source for copying conditions.  There is NO
    warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

and the configuration options are ...

    $ cat autogen.lastrun
    --enable-symbols
    --enable-dbgutil
    --enable-crashdump
    --disable-build-mozilla
    --without-system-postgresql
    --enable-debug
    --enable-werror


I apologize for this poor bug report.  Suggestions for collecting more
information are welcome.


For comparison, note bug reports ...

(*) bug 38177 "Closing parent Base window leaves wizard generated
    table, query, report or form window in orphaned state" is
    different in that (a) the window on which the user clicks the "X"
    icon actually does close, and (b) the bug is fixed.

(*) bug 40730 "UI. hang closing application with the close-X-icon of
    the window." is similar in that (a) the user had many windows open
    and closed one of them with the "X" icon, and (b) the problem is
    not consistently reproducible, but different in that (a) the
    application is Calc, and (b) the platform is Windows.


Terry.

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