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Bug#865544: Adding a new default panel segfaults with apparent infinite recursion stack overflow



Package: plasma-workspace
Version: 4:5.8.6-2.1
Severity: important

(note: a friend found this on his Stretch box, and asked me to try it on
my testing/unstable box where it happens as well. So this bug affects
stable.)

With widgets unlocked: Right click desktop -> add panel -> default panel
Nothing appears to happen. After a moment (and possibly some clicking on
the desktop), plasmashell segfaults.

I installed the dbgsym packages and ran it under GDB, obtaining a hug
(19M!) backtrace, as it has over 76,000 frames—appears like infinite
recursion. Though I'm somewhat confused why there are different frames
on both ends, unless that's the crash report error handler trying to
work...

Thankfully, xz managed to bring it down to 139K. Attached.

Both of us are using the nVidia proprietary drivers, if that matters.

-- System Information:
Debian Release: 9.0
  APT prefers unstable-debug
  APT policy: (500, 'unstable-debug'), (500, 'testing-debug'), (500, 'testing'), (200, 'unstable'), (150, 'stable'), (100, 'experimental'), (1, 'experimental-debug')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.9.0-3-amd64 (SMP w/8 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US:en_GB (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages plasma-workspace depends on:
ii  dbus-x11                                 1.10.18-1
ii  frameworkintegration                     5.28.0-1
ii  gdb                                      7.12-6
ii  iso-codes                                3.75-1
ii  kactivitymanagerd                        5.8.4-1
ii  kde-cli-tools                            4:5.8.7-1
ii  kded5                                    5.28.0-1
ii  kinit                                    5.28.0-1
ii  kio                                      5.28.0-2
ii  kpackagetool5                            5.28.1-1
ii  libc6                                    2.24-12
ii  libcln6                                  1.3.4-2+b1
ii  libdbusmenu-qt5-2                        0.9.3+16.04.20160218-1
ii  libgcc1                                  1:6.3.0-18
ii  libgps22                                 3.16-4
ii  libice6                                  2:1.0.9-2
ii  libkf5activities5                        5.28.0-1
ii  libkf5auth5                              5.28.0-2
ii  libkf5baloo5                             5.28.0-2
ii  libkf5bookmarks5                         5.28.0-1
ii  libkf5calendarevents5                    5.28.0-1
ii  libkf5completion5                        5.28.0-1
ii  libkf5configcore5                        5.28.0-2
ii  libkf5configgui5                         5.28.0-2
ii  libkf5configwidgets5                     5.28.0-2
ii  libkf5coreaddons5                        5.28.0-2
ii  libkf5crash5                             5.28.0-1
ii  libkf5dbusaddons5                        5.28.0-1
ii  libkf5declarative5                       5.28.0-1
ii  libkf5globalaccel-bin                    5.28.0-1
ii  libkf5globalaccel5                       5.28.0-1
ii  libkf5guiaddons5                         5.28.0-1
ii  libkf5holidays5                          16.04.2-1
ii  libkf5i18n5                              5.28.0-2
ii  libkf5iconthemes5                        5.28.0-2
ii  libkf5idletime5                          5.28.0-1
ii  libkf5itemviews5                         5.28.0-1
ii  libkf5jobwidgets5                        5.28.0-2
ii  libkf5js5                                5.28.0-1
ii  libkf5jsembed5                           5.28.0-1
ii  libkf5kdelibs4support5                   5.28.0-2
ii  libkf5kiocore5                           5.28.0-2
ii  libkf5kiofilewidgets5                    5.28.0-2
ii  libkf5kiowidgets5                        5.28.0-2
ii  libkf5networkmanagerqt6                  5.28.0-2
ii  libkf5newstuff5                          5.28.0-1
ii  libkf5notifications5                     5.28.0-1
ii  libkf5notifyconfig5                      5.28.0-1
ii  libkf5package5                           5.28.1-1
ii  libkf5plasma5                            5.28.0-2
ii  libkf5plasmaquick5                       5.28.0-2
ii  libkf5quickaddons5                       5.28.0-1
ii  libkf5runner5                            5.28.0-1
ii  libkf5service-bin                        5.28.0-1
ii  libkf5service5                           5.28.0-1
ii  libkf5solid5                             5.28.0-3
ii  libkf5texteditor5                        5.28.0-2
ii  libkf5textwidgets5                       5.28.0-1
ii  libkf5wallet-bin                         5.28.0-3
ii  libkf5wallet5                            5.28.0-3
ii  libkf5waylandclient5                     4:5.28.0-1
ii  libkf5widgetsaddons5                     5.28.0-3
ii  libkf5windowsystem5                      5.28.0-2
ii  libkf5xmlgui5                            5.28.0-1
ii  libkf5xmlrpcclient5                      5.28.0-1
ii  libkscreenlocker5                        5.8.7-1
ii  libksgrd7                                4:5.8.7-1
ii  libkworkspace5-5                         4:5.8.6-2.1
ii  libphonon4qt5-4                          4:4.9.0-4
ii  libplasma-geolocation-interface5         4:5.8.6-2.1
ii  libprocesscore7                          4:5.8.7-1
ii  libprocessui7                            4:5.8.7-1
ii  libqalculate5v5                          0.9.7-9.2
ii  libqt5core5a                             5.7.1+dfsg-3+b1
ii  libqt5dbus5                              5.7.1+dfsg-3+b1
ii  libqt5gui5                               5.7.1+dfsg-3+b1
ii  libqt5network5                           5.7.1+dfsg-3+b1
ii  libqt5qml5                               5.7.1-2+b2
ii  libqt5quick5                             5.7.1-2+b2
ii  libqt5script5                            5.7.1~20161021+dfsg-2
ii  libqt5sql5                               5.7.1+dfsg-3+b1
ii  libqt5widgets5                           5.7.1+dfsg-3+b1
ii  libqt5x11extras5                         5.7.1~20161021-2
ii  libqt5xml5                               5.7.1+dfsg-3+b1
ii  libsm6                                   2:1.2.2-1+b3
ii  libstdc++6                               6.3.0-18
ii  libtaskmanager6                          4:5.8.6-2.1
ii  libweather-ion7                          4:5.8.6-2.1
ii  libx11-6                                 2:1.6.4-3
ii  libxcb-composite0                        1.12-1
ii  libxcb-damage0                           1.12-1
ii  libxcb-image0                            0.4.0-1+b2
ii  libxcb-randr0                            1.12-1
ii  libxcb-util0                             0.3.8-3+b2
ii  libxcb1                                  1.12-1
ii  libxfixes3                               1:5.0.3-1
ii  libxrender1                              1:0.9.10-1
ii  milou                                    4:5.8.4-1
ii  phonon4qt5                               4:4.9.0-4
ii  plasma-framework                         5.28.0-2
ii  plasma-integration                       5.8.6-1
ii  qdbus-qt5                                5.7.1-1
ii  qml-module-org-kde-draganddrop           5.28.0-1
ii  qml-module-org-kde-extensionplugin       5.28.0-1
ii  qml-module-org-kde-kcoreaddons           5.28.0-1
ii  qml-module-org-kde-kholidays             16.04.2-1
ii  qml-module-org-kde-kquickcontrols        5.28.0-1
ii  qml-module-org-kde-kquickcontrolsaddons  5.28.0-1
ii  qml-module-org-kde-kwindowsystem         5.28.0-1
ii  qml-module-org-kde-solid                 5.28.0-3
ii  qml-module-qt-labs-folderlistmodel       5.7.1-2+b2
ii  qml-module-qtgraphicaleffects            5.7.1~20161021-3
ii  qml-module-qtqml-models2                 5.7.1-2+b2
ii  qml-module-qtquick-controls              5.7.1~20161021-2
ii  qml-module-qtquick-dialogs               5.7.1~20161021-2
ii  qml-module-qtquick-layouts               5.7.1-2+b2
ii  qml-module-qtquick-window2               5.7.1-2+b2
ii  qml-module-qtquick2                      5.7.1-2+b2
ii  qttools5-dev-tools                       5.7.1-1
ii  udisks2                                  2.1.8-1
ii  x11-utils                                7.7+3+b1
ii  x11-xserver-utils                        7.7+7+b1
ii  zlib1g                                   1:1.2.8.dfsg-5

Versions of packages plasma-workspace recommends:
ii  kio-extras       4:16.08.3-1
ii  libpam-kwallet5  5.8.4-1
ii  powerdevil       4:5.8.4-1

plasma-workspace suggests no packages.

-- no debconf information

Attachment: gdb-plasmashell.txt.xz
Description: application/xz


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