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Bug#519043: marked as done (twinkle: invalid free() when closing log window)

Your message dated Wed, 20 Jun 2012 11:03:14 +0000
with message-id <[🔎] E1ShIgs-00078Z-Vq@franck.debian.org>
and subject line Bug#678210: Removed package(s) from unstable
has caused the Debian Bug report #519043,
regarding twinkle: invalid free() when closing log window
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
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misconfiguration somewhere. Please contact owner@bugs.debian.org

519043: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=519043
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message ---
Package: twinkle
Version: 1.2-3
Severity: important

(This may look like a duplicate of #471381, but it's not, at least as
far as I can tell.)

I'm occasionally getting a SIGABRT when closing the Log window.  While I
couldn't find a regular pattern that triggers this, it's quite easy to
provoke by brute force:

  1. Select Open/Log
  2. Press the Close button [*]
  3. Press the Register button a couple of times, to grow the log
  4. Rinse, repeat

  [*] Having the window manager close the window works too.  Pressing
      <ESC> may not, though.

Eventually, step 2 will trigger a SIGABRT due to delete() being called
on something that probably no longer exists.  Whether this is a Twinkle
bug or a QT bug is beyond me, so I leave it all in your wise hands.

Here's a backtrace using 1:1.4.2-1 :

*** glibc detected *** /usr/bin/twinkle: free(): invalid pointer: 0x097918cf ***
#0  0xb7f55424 in __kernel_vsyscall ()
#1  0xb699e640 in *__GI_raise (sig=6)
    at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
#2  0xb69a0008 in *__GI_abort () at abort.c:88
#3  0xb69dbe2d in __libc_message (do_abort=2, 
    fmt=0xb6ab6188 "*** glibc detected *** %s: %s: 0x%s ***\n")
    at ../sysdeps/unix/sysv/linux/libc_fatal.c:170
#4  0xb69e21e4 in malloc_printerr (action=2, 
    str=0xb6ab3064 "free(): invalid pointer", ptr=0x97918cf) at malloc.c:5994
#5  0xb69e4196 in *__GI___libc_free (mem=0x97918cf) at malloc.c:3625
#6  0xb6bc0341 in operator delete () from /usr/lib/libstdc++.so.6
#7  0xb702c98c in QMapPrivate<int, QTextParagraphSelection>::clear (
    this=0x96743b0, p=0x97918cf) at ../include/qmap.h:493
#8  0xb700865a in ~QTextParagraph (this=0x97365a0) at ../include/qmap.h:480
#9  0xb701580a in QTextDocument::removeSelectedText (this=0x95dd030, id=32000, 
    cursor=0x95d4658) at kernel/qrichtext.cpp:2963
#10 0xb711cd3b in QTextEdit::removeSelectedText (this=0x9595b40, selNum=32000)
    at widgets/qtextedit.cpp:1935
#11 0xb711a200 in QTextEdit::clear (this=0x9595b40)
    at widgets/qtextedit.cpp:5478
#12 0x08131f41 in LogViewForm::closeEvent (this=0x95db000, ev=0xbff706b0)
    at .ui/../logviewform.ui.h:60
#13 0xb6fe78ef in QWidget::event (this=0x95db000, e=0xbff706b0)
    at kernel/qwidget.cpp:4821
#14 0xb6f487c5 in QApplication::internalNotify (this=0x93d1e70, 
    receiver=0x95db000, e=0xbff706b0) at kernel/qapplication.cpp:2638
#15 0xb6f4977d in QApplication::notify (this=0x93d1e70, receiver=0x95db000, 
    e=0xbff706b0) at kernel/qapplication.cpp:2526
#16 0xb7ba6c22 in KApplication::notify () from /usr/lib/libkdecore.so.4
#17 0xb6fe633d in QWidget::close (this=0x95db000, alsoDelete=false)
    at kernel/qapplication.h:523
#18 0xb7310513 in QWidget::qt_invoke (this=0x95db000, _id=33, _o=0xbff70774)
    at .moc/release-shared-mt/../../kernel/qwidget.h:871
#19 0xb7332b42 in QDialog::qt_invoke (this=0x95db000, _id=33, _o=0xbff70774)
    at .moc/release-shared-mt/moc_qdialog.cpp:112
#20 0xb6fad1aa in QObject::activate_signal (this=0x9465218, clist=0x95ab398, 
    o=0xbff70774) at kernel/qobject.cpp:2359
#21 0xb6faf6cb in QObject::activate_signal (this=0x9465218, signal=4)
    at kernel/qobject.cpp:2328
#22 0xb731245c in QButton::clicked (this=0x9465218)
    at .moc/release-shared-mt/moc_qbutton.cpp:152
#23 0xb7047300 in QButton::mouseReleaseEvent (this=0x9465218, e=0xbff70c14)
    at widgets/qbutton.cpp:839
#24 0xb6fe7727 in QWidget::event (this=0x9465218, e=0xbff70c14)
    at kernel/qwidget.cpp:4705
#25 0xb6f487c5 in QApplication::internalNotify (this=0x93d1e70, 
    receiver=0x9465218, e=0xbff70c14) at kernel/qapplication.cpp:2638
#26 0xb6f499e2 in QApplication::notify (this=0x93d1e70, receiver=0x9465218, 
    e=0xbff70c14) at kernel/qapplication.cpp:2424
#27 0xb7ba6c22 in KApplication::notify () from /usr/lib/libkdecore.so.4
#28 0xb6ee2fbe in QApplication::sendSpontaneousEvent (receiver=0x9465218, 
    event=0xbff70c14) at kernel/qapplication.h:526
#29 0xb6edff21 in QETWidget::translateMouseEvent (this=0x9465218, 
    event=0xbff70f08) at kernel/qapplication_x11.cpp:4347
#30 0xb6edf334 in QApplication::x11ProcessEvent (this=0x93d1e70, 
    event=0xbff70f08) at kernel/qapplication_x11.cpp:3524
#31 0xb6ef2e2c in QEventLoop::processEvents (this=0x93f9260, 
    flags=<value optimized out>) at kernel/qeventloop_x11.cpp:195
#32 0xb6f611a0 in QEventLoop::enterLoop (this=0x93f9260)
    at kernel/qeventloop.cpp:201
#33 0xb6f61066 in QEventLoop::exec (this=0x93f9260)
    at kernel/qeventloop.cpp:148
#34 0xb6f48e5f in QApplication::exec (this=0x93d1e70)
    at kernel/qapplication.cpp:2761
#35 0x0807fe60 in t_gui::run (this=0x9406720) at gui.cpp:757
#36 0x0806f899 in main (argc=Cannot access memory at address 0x5247
) at main.cpp:1021

-- System Information:
Debian Release: squeeze/sid
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: i386 (i686)

Kernel: Linux 2.6.26 (SMP w/1 CPU core)
Locale: LANG=en_CA.UTF-8, LC_CTYPE=en_CA.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

--- End Message ---
--- Begin Message ---
Version: 3:3.3.8b-11+rm

Dear submitter,

as the package qt-x11-free has just been removed from the Debian archive
unstable we hereby close the associated bug reports.  We are sorry
that we couldn't deal with your issue properly.

For details on the removal, please see http://bugs.debian.org/678210

The version of this package that was in Debian prior to this removal
can still be found using http://snapshot.debian.org/.

This message was generated automatically; if you believe that there is
a problem with it please contact the archive administrators by mailing

Debian distribution maintenance software
Alexander Reichle-Schmehl (the ftpmaster behind the curtain)

--- End Message ---

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