Bug #1386255 鈥渄evhelp and many other apps crash with SIGSEGV in ... : Bugs : overlay-scrollbar

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vertical-align: middle"> <div class="status-content" style="width: 100%; float: left"> <span style="float: left" class="value statusFIXRELEASED">Fix Released</span> </div> </td> <td style="width: 15em; vertical-align: middle"> <div class="importance-content" style="width: 100%; float: left"> <span style="float: left" class="value importanceUNDECIDED">Undecided</span> </div> </td> <td style="width:20%; margin: 0; padding: 0; vertical-align: middle; padding-left: 0.5em"> <span id="assignee-picker-tasksummary1707119"> <span class="yui3-activator-data-box"> Unassigned </span> <div class="yui3-activator-message-box yui3-activator-hidden"></div> </span> </td> <td style="width: 20%; vertical-align: middle"> <div class="milestone-content" style="width: 100%; float: left"> <a class="value" href="https://launchpad.net/ubuntu-gnome/+milestone/vivid">Ubuntu GNOME vivid "15.04"</a> </div> </td> </tr> <tr class="highlight" id="tasksummary1708065"> <td> </td> <td> <span id="bugtarget-picker-tasksummary1708065"> <span class="yui3-activator-data-box"> <a class="sprite product" href="https://bugs.launchpad.net/overlay-scrollbar">overlay-scrollbar</a> </span> <div class="yui3-activator-message-box yui3-activator-hidden"></div> </span> </td> <td style="width: 20%; vertical-align: middle"> <div class="status-content" style="width: 100%; float: left"> <span style="float: left" class="value statusNEW">New</span> </div> </td> <td style="width: 15em; vertical-align: middle"> <div class="importance-content" style="width: 100%; float: left"> <span style="float: left" class="value importanceUNDECIDED">Undecided</span> </div> </td> <td style="width:20%; margin: 0; padding: 0; vertical-align: middle; padding-left: 0.5em"> <span id="assignee-picker-tasksummary1708065"> <span class="yui3-activator-data-box"> Unassigned </span> <div class="yui3-activator-message-box yui3-activator-hidden"></div> </span> </td> <td style="width: 20%; vertical-align: middle"> </td> </tr> <tr id="tasksummary1708011"> <td> </td> <td> <span id="bugtarget-picker-tasksummary1708011"> <span class="yui3-activator-data-box"> <a class="sprite package-source" href="https://bugs.launchpad.net/ubuntu/+source/overlay-scrollbar" title="Latest release: 0.2.17.1+16.04.20151117-0ubuntu5, uploaded to universe on 2024-03-31 09:25:08.916115+00:00 by Steve Langasek (vorlon), maintained by Ubuntu Desktop (ubuntu-desktop)">overlay-scrollbar (Ubuntu)</a> </span> <div class="yui3-activator-message-box yui3-activator-hidden"></div> </span> </td> <td style="width: 20%; vertical-align: middle"> <div class="status-content" style="width: 100%; float: left"> <span style="float: left" class="value statusFIXRELEASED">Fix Released</span> </div> </td> <td style="width: 15em; vertical-align: middle"> <div class="importance-content" style="width: 100%; float: left"> <span style="float: left" class="value importanceCRITICAL">Critical</span> </div> </td> <td style="width:20%; margin: 0; padding: 0; vertical-align: middle; padding-left: 0.5em"> <span id="assignee-picker-tasksummary1708011"> <span class="yui3-activator-data-box"> Unassigned </span> <div class="yui3-activator-message-box yui3-activator-hidden"></div> </span> </td> <td style="width: 20%; vertical-align: middle"> <div class="milestone-content" style="width: 100%; float: left"> <a class="value" href=""></a> </div> </td> </tr> </tbody> </table> <div id="maincontentsub"> <div class="top-portlet"> <div itemprop="mainContentOfPage" class="report"> <div> <div class="lazr-multiline-edit" id="edit-description"> <div class="clearfix"> <h3>Bug Description</h3> </div> <div class="yui3-editable_text-text"><p>With the gnome3-<wbr />team/gnome3-<wbr />staging PPA enabled all Gtk+ applications segfault when I do stuff like</p> <p>- Press the <Menu> key<br /> - Press the Save button in gedit's headerbar<br /> - Press the hamburger menu button in devhelp's headerbar (the stack trace attached to this bug)<br /> - Press the Add button in gtimelog<br /> - Try to open any of the regular menus in gtimelog</p> <p>ProblemType: Crash<br /> DistroRelease: Ubuntu 14.10<br /> Package: devhelp 3.14.0-1~utopic1 [origin: LP-PPA-<wbr />gnome3-<wbr />team-gnome3-<wbr />staging]<br /> ProcVersionSign<wbr />ature: Ubuntu 3.16.0-<wbr />23.31-generic 3.16.4<br /> Uname: Linux 3.16.0-23-generic x86_64<br /> ApportVersion: 2.14.7-0ubuntu8<br /> Architecture: amd64<br /> CurrentDesktop: GNOME<br /> Date: Mon Oct 27 17:15:30 2014<br /> Disassembly: => 0x0: Cannot access memory at address 0x0<br /> EcryptfsInUse: Yes<br /> ExecutablePath: /usr/bin/devhelp<br /> InstallationDate: Installed on 2012-07-25 (824 days ago)<br /> InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)<br /> ProcCmdline: devhelp<br /> SegvAnalysis:<br />  Segfault happened at: 0x0: Cannot access memory at address 0x0<br />  PC (0x00000000) not located in a known VMA region (needed executable region)!<br /> SegvReason: executing NULL VMA<br /> Signal: 11<br /> SourcePackage: devhelp<br /> StacktraceTop:<br />  ?? ()<br />  g_closure_invoke (closure=0x11e4ce0, return_value=0x0, n_param_values=2, param_values=<wbr />0x7fffd6ed0920, invocation_<wbr />hint=0x7fffd6ed<wbr />08c0) at /build/<wbr />buildd/<wbr />glib2.0-<wbr />2.42.0/<wbr />./gobject/<wbr />gclosure.<wbr />c:768<br />  signal_<wbr />emit_unlocked_<wbr />R (node=node@<wbr />entry=0x11e50b0<wbr />, detail=<wbr />detail@<wbr />entry=0, instance=<wbr />instance@<wbr />entry=0x182a510<wbr />, emission_<wbr />return=<wbr />emission_<wbr />return@<wbr />entry=0x0, instance_<wbr />and_params=<wbr />instance_<wbr />and_params@<wbr />entry=0x7fffd6e<wbr />d0920) at /build/<wbr />buildd/<wbr />glib2.0-<wbr />2.42.0/<wbr />./gobject/<wbr />gsignal.<wbr />c:3483<br />  g_signal_<wbr />emit_valist (instance=<wbr /><optimized out>, signal_<wbr />id=<optimized out>, detail=<optimized out>, var_args=<wbr />var_args@<wbr />entry=0x7fffd6e<wbr />d0ab0) at /build/<wbr />buildd/<wbr />glib2.0-<wbr />2.42.0/<wbr />./gobject/<wbr />gsignal.<wbr />c:3309<br />  g_signal_emit (instance=<wbr />instance@<wbr />entry=0x182a510<wbr />, signal_<wbr />id=<optimized out>, detail=<wbr />detail@<wbr />entry=0) at /build/<wbr />buildd/<wbr />glib2.0-<wbr />2.42.0/<wbr />./gobject/<wbr />gsignal.<wbr />c:3365<br /> Title: devhelp crashed with SIGSEGV in g_closure_invoke()<br /> UpgradeStatus: Upgraded to utopic on 2014-10-24 (3 days ago)<br /> UserGroups: adm cdrom dip docker libvirtd lp lpadmin plugdev sambashare shared sudo wireshark</p></div> </div> </div> <div style="margin:-10px 0 20px 5px" class="clearfix"> </div> <div id="bug-tags"> <span id="tags-heading"> Tags: </span> <span id="tag-list"> <a class="official-tag" href="/overlay-scrollbar/+bugs?field.tag=gnome3-ppa">gnome3-ppa</a> <a class="official-tag" href="/overlay-scrollbar/+bugs?field.tag=gnome3-staging">gnome3-staging</a> <a class="official-tag" href="/overlay-scrollbar/+bugs?field.tag=utopic">utopic</a> <a class="unofficial-tag" href="/overlay-scrollbar/+bugs?field.tag=amd64">amd64</a> <a class="unofficial-tag" href="/overlay-scrollbar/+bugs?field.tag=apport-crash">apport-crash</a> <a class="unofficial-tag" href="/overlay-scrollbar/+bugs?field.tag=apport-failed-retrace">apport-failed-retrace</a> <a class="unofficial-tag" href="/overlay-scrollbar/+bugs?field.tag=third-party-packages">third-party-packages</a> <a class="unofficial-tag" href="/overlay-scrollbar/+bugs?field.tag=ubuntugnome-blocker">ubuntugnome-blocker</a> </span> </div> <script type="text/javascript"> LPJS.use('event', 'node', 'lp.bugs.tags_entry', function(Y) { Y.on('domready', function(e) { Y.lp.bugs.tags_entry.setup_tag_entry( available_official_tags); }, window); }); </script> <div class="clearfix"></div> </div> <div id="branches-and-cves"> <div id="bug-branches-container" style="float: left"> <div id="bug-branches"> <h2>Related branches</h2> <div class="buglink-summary"> <a href="https://code.launchpad.net/~darkxst/overlay-scrollbar/lp1386255" class="sprite branch">lp:~darkxst/overlay-scrollbar/lp1386255</a> <div class="reviews"> <div> <img src="/@@/merge-proposal-icon" /> <a href="https://code.launchpad.net/~darkxst/overlay-scrollbar/lp1386255/+merge/239926" title="">Merged</a> into <a href="https://code.launchpad.net/~ayatana-scrollbar-team/overlay-scrollbar/trunk">lp:overlay-scrollbar</a> at <a href="https://bazaar.launchpad.net/~ayatana-scrollbar-team/overlay-scrollbar/trunk/revision/386"> revision 386 </a> </div> <dl class="reviews"> <dd> <a href="https://launchpad.net/~larsu" class="sprite person">Lars Karlitski</a>: <span class="voteAPPROVE">Approve</span> <time title="2014-11-14 11:07:09 UTC" datetime="2014-11-14T11:07:09.858588+00:00">on 2014-11-14</time> </dd> <dd id="review-ayatana-scrollbar-team"> <a href="https://launchpad.net/~ayatana-scrollbar-team" class="sprite team">Ayatana Scrollbar Team</a>: <span class="votePENDING">Pending</span> requested <time title="2014-10-28 23:19:31 UTC" datetime="2014-10-28T23:19:31.680421+00:00">2014-10-28</time> </dd> <dd class="popup-diff mp-239926"> Diff: <a href="https://code.launchpad.net/~darkxst/overlay-scrollbar/lp1386255/+merge/239926/+preview-diff/573501/+files/preview.diff" class="diff-link">13 lines (+2/-1)</a><div class="collapsible"><span>1 file modified</span><div>os/os-scrollbar.c (+2/-1)</div></div> <a class="api-ref hidden" href="/~darkxst/overlay-scrollbar/lp1386255/+merge/239926/+preview-diff/573501">api</a> </dd> </dl> </div> </div> <div class="buglink-summary"> <a href="https://code.launchpad.net/~ubuntu-branches/ubuntu/vivid/overlay-scrollbar/vivid-proposed" class="sprite branch">lp:ubuntu/vivid-proposed/overlay-scrollbar</a> </div> </div> </div> <div class="clearfix"></div> </div>  </div> <div> <div xmlns="http://www.w3.org/1999/xhtml" itemscope="" itemtype="http://schema.org/UserComments" class="boardComment editable-message " data-baseurl="/overlay-scrollbar/+bug/1386255/comments/1" data-i-can-edit="False"> <div class="boardCommentDetails"> <div class="message-revision-container"> <div class="message-revision-container-header"> <span>Revision history for this message</span> <img src="/+icing/build/overlay/assets/skins/sam/images/close.gif" class="message-revision-close" /> </div> <script type="text/template"> <div class='message-revision-item'> <div class='message-revision-title'> <a class="sprite remove action-icon message-revision-del-btn"> Remove </a> <a class="js-action"> Revision #{revision}, created at {date_created_display} </a> </div> <div class='message-revision-body'>{content}</div> </div> </script> <div class="message-revision-list"></div> </div> <table> <tbody> <tr> <td> <a href="https://launchpad.net/~mgedmin" class="sprite person">Marius Gedminas (mgedmin)</a> wrote <time itemprop="commentTime" datetime="2014-10-27T15:20:16.905826+00:00" title="2014-10-27 15:20:16 UTC">on 2014-10-27</time><span class="editable-message-last-edit-date">: </span> </td> <td> </td> <td> </td> <td class="bug-comment-index"> <a itemprop="url" href="/overlay-scrollbar/+bug/1386255/comments/1"> #1</a> </td> </tr> </tbody> </table> </div> <div class="boardCommentBody"> <ul style="margin-bottom: 1em"> <li class="download-attachment"> <a href="https://bugs.launchpad.net/overlay-scrollbar/+bug/1386255/+attachment/4246290/+files/CrashDB.txt" class="sprite download-icon">CrashDB.txt</a> <a class="sprite edit action-icon" href="/overlay-scrollbar/+bug/1386255/+attachment/4246290">Edit</a> (263 bytes, text/plain; 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charset="utf-8") </li> <li class="download-attachment"> <a href="https://bugs.launchpad.net/overlay-scrollbar/+bug/1386255/+attachment/4246297/+files/ThreadStacktrace.txt" class="sprite download-icon">ThreadStacktrace.txt</a> <a class="sprite edit action-icon" href="/overlay-scrollbar/+bug/1386255/+attachment/4246297">Edit</a> (32.2 KiB, text/plain; charset="utf-8") </li> </ul> <div class="editable-message-body"> <div class="comment-text editable-message-text" itemprop="commentText"></div> </div> <div class="editable-message-form" style="display: none"> <textarea style="width: 100%" rows="10"></textarea> <input type="button" value="Update" class="editable-message-update-btn" /> <input type="button" value="Cancel" class="editable-message-cancel-btn" /> </div> </div> </div> <div xmlns="http://www.w3.org/1999/xhtml" itemscope="" itemtype="http://schema.org/UserComments" class="boardComment editable-message " data-baseurl="/overlay-scrollbar/+bug/1386255/comments/2" data-i-can-edit="False"> <div class="boardCommentDetails"> <div class="message-revision-container"> <div class="message-revision-container-header"> <span>Revision history for this message</span> <img src="/+icing/build/overlay/assets/skins/sam/images/close.gif" class="message-revision-close" /> </div> <script type="text/template"> <div class='message-revision-item'> <div class='message-revision-title'> <a class="sprite remove action-icon message-revision-del-btn"> Remove </a> <a class="js-action"> Revision #{revision}, created at {date_created_display} </a> </div> <div class='message-revision-body'>{content}</div> </div> </script> <div class="message-revision-list"></div> </div> <table> <tbody> <tr> <td> <a href="https://launchpad.net/~ug-bot" class="sprite person">Ubuntu GNOME (ug-bot)</a> wrote <time itemprop="commentTime" datetime="2014-10-27T15:35:55.921713+00:00" title="2014-10-27 15:35:55 UTC">on 2014-10-27</time><span class="editable-message-last-edit-date">: </span> <a href="/overlay-scrollbar/+bug/1386255/comments/2"> <strong></strong> </a> </td> <td> </td> <td> </td> <td class="bug-comment-index"> <a itemprop="url" href="/overlay-scrollbar/+bug/1386255/comments/2"> #2</a> </td> </tr> </tbody> </table> </div> <div class="boardCommentBody"> <div class="editable-message-body"> <div class="comment-text editable-message-text" itemprop="commentText"><p>StacktraceTop:<br />  ?? ()<br />  g_cclosure_<wbr />marshal_<wbr />generic_<wbr />va (closure=<error reading variable: Cannot access memory at address 0xfffffffffffff<wbr />f40>, return_value=<error reading variable: Cannot access memory at address 0xfffffffffffff<wbr />f20>, instance=<error reading variable: Cannot access memory at address 0xfffffffffffff<wbr />f68>, args_list=<wbr /><optimized out>, marshal_data=<error reading variable: Cannot access memory at address 0xfffffffffffff<wbr />f18>, n_params=<error reading variable: Cannot access memory at address 0xfffffffffffff<wbr />f4c>, param_types=<error reading variable: Cannot access memory at address 0x10>) at /build/<wbr />buildd/<wbr />glib2.0-<wbr />2.43.0~<wbr />git20141021.<wbr />4125415e/<wbr />./gobject/<wbr />gclosure.<wbr />c:1552</p></div> </div> <div class="editable-message-form" style="display: none"> <textarea style="width: 100%" rows="10">StacktraceTop: ?? () g_cclosure_marshal_generic_va (closure=<error reading variable: Cannot access memory at address 0xffffffffffffff40>, return_value=<error reading variable: Cannot access memory at address 0xffffffffffffff20>, instance=<error reading variable: Cannot access memory at address 0xffffffffffffff68>, args_list=<optimized out>, marshal_data=<error reading variable: Cannot access memory at address 0xffffffffffffff18>, n_params=<error reading variable: Cannot access memory at address 0xffffffffffffff4c>, param_types=<error reading variable: Cannot access memory at address 0x10>) at /build/buildd/glib2.0-2.43.0~git20141021.4125415e/./gobject/gclosure.c:1552 </textarea> <input type="button" value="Update" class="editable-message-update-btn" /> <input type="button" value="Cancel" class="editable-message-cancel-btn" /> </div> </div> </div> <div xmlns="http://www.w3.org/1999/xhtml" itemscope="" itemtype="http://schema.org/UserComments" class="boardComment editable-message " data-baseurl="/overlay-scrollbar/+bug/1386255/comments/3" data-i-can-edit="False"> <div class="boardCommentDetails"> <div class="message-revision-container"> <div class="message-revision-container-header"> <span>Revision history for this message</span> <img src="/+icing/build/overlay/assets/skins/sam/images/close.gif" class="message-revision-close" /> </div> <script type="text/template"> <div class='message-revision-item'> <div class='message-revision-title'> <a class="sprite remove action-icon message-revision-del-btn"> Remove </a> <a class="js-action"> Revision #{revision}, created at {date_created_display} </a> </div> <div class='message-revision-body'>{content}</div> </div> </script> <div class="message-revision-list"></div> </div> <table> <tbody> <tr> <td> <a href="https://launchpad.net/~ug-bot" class="sprite person">Ubuntu GNOME (ug-bot)</a> wrote <time itemprop="commentTime" datetime="2014-10-27T15:35:56.776205+00:00" title="2014-10-27 15:35:56 UTC">on 2014-10-27</time><span class="editable-message-last-edit-date">: </span> <a href="/overlay-scrollbar/+bug/1386255/comments/3"> <strong>Stacktrace.txt</strong> </a> </td> <td> </td> <td> </td> <td class="bug-comment-index"> <a itemprop="url" href="/overlay-scrollbar/+bug/1386255/comments/3"> #3</a> </td> </tr> </tbody> </table> </div> <div class="boardCommentBody"> <ul style="margin-bottom: 1em"> <li class="download-attachment"> <a href="https://bugs.launchpad.net/overlay-scrollbar/+bug/1386255/+attachment/4246302/+files/Stacktrace.txt" class="sprite download-icon">Stacktrace.txt</a> <a class="sprite edit action-icon" href="/overlay-scrollbar/+bug/1386255/+attachment/4246302">Edit</a> (1.9 KiB, text/plain) </li> </ul> <div class="editable-message-body"> <div class="comment-text editable-message-text" itemprop="commentText"></div> </div> <div class="editable-message-form" style="display: none"> <textarea style="width: 100%" rows="10"></textarea> <input type="button" value="Update" class="editable-message-update-btn" /> <input type="button" value="Cancel" class="editable-message-cancel-btn" /> </div> </div> </div> <div xmlns="http://www.w3.org/1999/xhtml" itemscope="" itemtype="http://schema.org/UserComments" class="boardComment editable-message " data-baseurl="/overlay-scrollbar/+bug/1386255/comments/4" data-i-can-edit="False"> <div class="boardCommentDetails"> <div class="message-revision-container"> <div class="message-revision-container-header"> <span>Revision history for this message</span> <img src="/+icing/build/overlay/assets/skins/sam/images/close.gif" class="message-revision-close" /> </div> <script type="text/template"> <div class='message-revision-item'> <div class='message-revision-title'> <a class="sprite remove action-icon message-revision-del-btn"> Remove </a> <a class="js-action"> Revision #{revision}, created at {date_created_display} </a> </div> <div class='message-revision-body'>{content}</div> </div> </script> <div class="message-revision-list"></div> </div> <table> <tbody> <tr> <td> <a href="https://launchpad.net/~ug-bot" class="sprite person">Ubuntu GNOME (ug-bot)</a> wrote <time itemprop="commentTime" datetime="2014-10-27T15:35:57.825542+00:00" title="2014-10-27 15:35:57 UTC">on 2014-10-27</time><span class="editable-message-last-edit-date">: </span> <a href="/overlay-scrollbar/+bug/1386255/comments/4"> <strong>ThreadStacktrace.txt</strong> </a> </td> <td> </td> <td> </td> <td class="bug-comment-index"> <a itemprop="url" href="/overlay-scrollbar/+bug/1386255/comments/4"> #4</a> </td> </tr> </tbody> </table> </div> <div class="boardCommentBody"> <ul style="margin-bottom: 1em"> <li class="download-attachment"> <a href="https://bugs.launchpad.net/overlay-scrollbar/+bug/1386255/+attachment/4246303/+files/ThreadStacktrace.txt" class="sprite download-icon">ThreadStacktrace.txt</a> <a class="sprite edit action-icon" href="/overlay-scrollbar/+bug/1386255/+attachment/4246303">Edit</a> (14.2 KiB, text/plain) </li> </ul> <div class="editable-message-body"> <div class="comment-text editable-message-text" itemprop="commentText"></div> </div> <div class="editable-message-form" style="display: none"> <textarea style="width: 100%" rows="10"></textarea> <input type="button" value="Update" class="editable-message-update-btn" /> <input type="button" value="Cancel" class="editable-message-cancel-btn" /> </div> </div> <div class="boardCommentActivity"> <table class="bug-activity"> <tr> <td style="text-align: right;"> <b>tags</b>: </td> <td> added: apport-failed-retrace </td> </tr> <tr> <td style="text-align: right;"> <b>tags</b>: </td> <td> removed: need-amd64-retrace </td> </tr> </table> </div> </div> <div xmlns="http://www.w3.org/1999/xhtml" itemscope="" itemtype="http://schema.org/UserComments" class="boardComment editable-message " data-baseurl="/overlay-scrollbar/+bug/1386255/comments/5" data-i-can-edit="False"> <div class="boardCommentDetails"> <div class="message-revision-container"> <div class="message-revision-container-header"> <span>Revision history for this message</span> <img src="/+icing/build/overlay/assets/skins/sam/images/close.gif" class="message-revision-close" /> </div> <script type="text/template"> <div class='message-revision-item'> <div class='message-revision-title'> <a class="sprite remove action-icon message-revision-del-btn"> Remove </a> <a class="js-action"> Revision #{revision}, created at {date_created_display} </a> </div> <div class='message-revision-body'>{content}</div> </div> </script> <div class="message-revision-list"></div> </div> <table> <tbody> <tr> <td> <a href="https://launchpad.net/~mgedmin" class="sprite person">Marius Gedminas (mgedmin)</a> wrote <time itemprop="commentTime" datetime="2014-10-27T15:52:43.504327+00:00" title="2014-10-27 15:52:43 UTC">on 2014-10-27</time><span class="editable-message-last-edit-date">: </span> <a href="/overlay-scrollbar/+bug/1386255/comments/5"> <strong>Re: devhelp crashed with SIGSEGV in g_closure_invoke()</strong> </a> </td> <td> </td> <td> </td> <td class="bug-comment-index"> <a itemprop="url" href="/overlay-scrollbar/+bug/1386255/comments/5"> #5</a> </td> </tr> </tbody> </table> </div> <div class="boardCommentBody"> <ul style="margin-bottom: 1em"> <li class="download-attachment"> <a href="https://bugs.launchpad.net/overlay-scrollbar/+bug/1386255/+attachment/4246316/+files/stacktrace.txt" class="sprite download-icon">Stack trace produced by apport-retrace</a> <a class="sprite edit action-icon" href="/overlay-scrollbar/+bug/1386255/+attachment/4246316">Edit</a> (18.0 KiB, text/plain) </li> </ul> <div class="editable-message-body"> <div class="comment-text editable-message-text" itemprop="commentText"><p>apport-retrace --stdout /var/crash/<wbr />_usr_bin_<wbr />devhelp.<wbr />1000.crash gives me this.</p></div> </div> <div class="editable-message-form" style="display: none"> <textarea style="width: 100%" rows="10">apport-retrace --stdout /var/crash/_usr_bin_devhelp.1000.crash gives me this.</textarea> <input type="button" value="Update" class="editable-message-update-btn" /> <input type="button" value="Cancel" class="editable-message-cancel-btn" /> </div> </div> </div> <div xmlns="http://www.w3.org/1999/xhtml" itemscope="" itemtype="http://schema.org/UserComments" class="boardComment editable-message " data-baseurl="/overlay-scrollbar/+bug/1386255/comments/6" data-i-can-edit="False"> <div class="boardCommentDetails"> <div class="message-revision-container"> <div class="message-revision-container-header"> <span>Revision history for this message</span> <img src="/+icing/build/overlay/assets/skins/sam/images/close.gif" class="message-revision-close" /> </div> <script type="text/template"> <div class='message-revision-item'> <div class='message-revision-title'> <a class="sprite remove action-icon message-revision-del-btn"> Remove </a> <a class="js-action"> Revision #{revision}, created at {date_created_display} </a> </div> <div class='message-revision-body'>{content}</div> </div> </script> <div class="message-revision-list"></div> </div> <table> <tbody> <tr> <td> <a href="https://launchpad.net/~mgedmin" class="sprite person">Marius Gedminas (mgedmin)</a> wrote <time itemprop="commentTime" datetime="2014-10-28T07:02:10.233029+00:00" title="2014-10-28 07:02:10 UTC">on 2014-10-28</time><span class="editable-message-last-edit-date">: </span> </td> <td> </td> <td> </td> <td class="bug-comment-index"> <a itemprop="url" href="/overlay-scrollbar/+bug/1386255/comments/6"> #6</a> </td> </tr> </tbody> </table> </div> <div class="boardCommentBody"> <div class="editable-message-body"> <div class="comment-text editable-message-text" itemprop="commentText"><p>I had a long gdb session on this with the help of #gnome-hackers on irc.gnome.org.</p> <p>This crash (and many like it) was caused by code in /usr/lib/<wbr />x86_64-<wbr />linux-gnu/<wbr />gtk-3.0/<wbr />modules/<wbr />liboverlay-<wbr />scrollbar.<wbr />so. Instead of debugging it to the bitter end I apt-get removed overlay-<wbr />scrollbar-<wbr />gtk3 and the crashes are gone</p></div> </div> <div class="editable-message-form" style="display: none"> <textarea style="width: 100%" rows="10">I had a long gdb session on this with the help of #gnome-hackers on irc.gnome.org. This crash (and many like it) was caused by code in /usr/lib/x86_64-linux-gnu/gtk-3.0/modules/liboverlay-scrollbar.so. Instead of debugging it to the bitter end I apt-get removed overlay-scrollbar-gtk3 and the crashes are gone</textarea> <input type="button" value="Update" class="editable-message-update-btn" /> <input type="button" value="Cancel" class="editable-message-cancel-btn" /> </div> </div> </div> <div class="boardComment"> <div class="boardCommentDetails"> <a href="https://launchpad.net/~darkxst" class="sprite person">Tim Lunn (darkxst)</a> <time title="2014-10-28 07:14:18 UTC" datetime="2014-10-28T07:14:18.503637+00:00">on 2014-10-28</time> </div> <div class="boardCommentActivity"> <table class="bug-activity"> <tr> <td style="text-align: right;"> <b>information type</b>: </td> <td> Private → Public </td> </tr> </table> </div> </div> <div xmlns="http://www.w3.org/1999/xhtml" itemscope="" itemtype="http://schema.org/UserComments" class="boardComment editable-message " data-baseurl="/overlay-scrollbar/+bug/1386255/comments/7" data-i-can-edit="False"> <div class="boardCommentDetails"> <div class="message-revision-container"> <div class="message-revision-container-header"> <span>Revision history for this message</span> <img src="/+icing/build/overlay/assets/skins/sam/images/close.gif" class="message-revision-close" /> </div> <script type="text/template"> <div class='message-revision-item'> <div class='message-revision-title'> <a class="sprite remove action-icon message-revision-del-btn"> Remove </a> <a class="js-action"> Revision #{revision}, created at {date_created_display} </a> </div> <div class='message-revision-body'>{content}</div> </div> </script> <div class="message-revision-list"></div> </div> <table> <tbody> <tr> <td> <a href="https://launchpad.net/~mgedmin" class="sprite person">Marius Gedminas (mgedmin)</a> wrote <time itemprop="commentTime" datetime="2014-10-28T07:15:54.220668+00:00" title="2014-10-28 07:15:54 UTC">on 2014-10-28</time><span class="editable-message-last-edit-date">: </span> </td> <td> </td> <td> </td> <td class="bug-comment-index"> <a itemprop="url" href="/overlay-scrollbar/+bug/1386255/comments/7"> #7</a> </td> </tr> </tbody> </table> </div> <div class="boardCommentBody"> <div class="editable-message-body"> <div class="comment-text editable-message-text" itemprop="commentText"><p>BTW you may want to apt-get purge overlay-scrollbar to avoid spurious error messages on the console (<a href="/bugs/1134202" class="bug-link">bug 1134202</a>).</p></div> </div> <div class="editable-message-form" style="display: none"> <textarea style="width: 100%" rows="10">BTW you may want to apt-get purge overlay-scrollbar to avoid spurious error messages on the console (bug 1134202).</textarea> <input type="button" value="Update" class="editable-message-update-btn" /> <input type="button" value="Cancel" class="editable-message-cancel-btn" /> </div> </div> </div> <div class="boardComment"> <div class="boardCommentDetails"> <a href="https://launchpad.net/~mgedmin" class="sprite person">Marius Gedminas (mgedmin)</a> <time title="2014-10-28 07:30:44 UTC" datetime="2014-10-28T07:30:44.588311+00:00">on 2014-10-28</time> </div> <div class="boardCommentActivity"> <table class="bug-activity"> <tr> <td style="text-align: right;"> <b>summary</b>: </td> <td> - devhelp crashed with SIGSEGV in g_closure_invoke()<br />+ devhelp and many other apps crash with SIGSEGV in g_closure_invoke() due<br />+ to overlay-scrollbars </td> </tr> </table> </div> </div> <div xmlns="http://www.w3.org/1999/xhtml" itemscope="" itemtype="http://schema.org/UserComments" class="boardComment editable-message " data-baseurl="/overlay-scrollbar/+bug/1386255/comments/8" data-i-can-edit="False"> <div class="boardCommentDetails"> <div class="message-revision-container"> <div class="message-revision-container-header"> <span>Revision history for this message</span> <img src="/+icing/build/overlay/assets/skins/sam/images/close.gif" class="message-revision-close" /> </div> <script type="text/template"> <div class='message-revision-item'> <div class='message-revision-title'> <a class="sprite remove action-icon message-revision-del-btn"> Remove </a> <a class="js-action"> Revision #{revision}, created at {date_created_display} </a> </div> <div class='message-revision-body'>{content}</div> </div> </script> <div class="message-revision-list"></div> </div> <table> <tbody> <tr> <td> <a href="https://launchpad.net/~darkxst" class="sprite person">Tim Lunn (darkxst)</a> wrote <time itemprop="commentTime" datetime="2014-10-28T07:34:48.321373+00:00" title="2014-10-28 07:34:48 UTC">on 2014-10-28</time><span class="editable-message-last-edit-date">: </span> </td> <td> </td> <td> </td> <td class="bug-comment-index"> <a itemprop="url" href="/overlay-scrollbar/+bug/1386255/comments/8"> #8</a> </td> </tr> </tbody> </table> </div> <div class="boardCommentBody"> <div class="editable-message-body"> <div class="comment-text editable-message-text" itemprop="commentText"><p>This will need to be fixed for gtk+3.14 to land in vivid</p></div> </div> <div class="editable-message-form" style="display: none"> <textarea style="width: 100%" rows="10">This will need to be fixed for gtk+3.14 to land in vivid</textarea> <input type="button" value="Update" class="editable-message-update-btn" /> <input type="button" value="Cancel" class="editable-message-cancel-btn" /> </div> </div> <div class="boardCommentActivity"> <table class="bug-activity"> <tr> <td colspan="2">Changed in ubuntu-gnome: </td> </tr> <tr> <td style="text-align: right;"> <b>milestone</b>: </td> <td> none → vivid </td> </tr> <tr> <td style="text-align: right;"> <b>tags</b>: </td> <td> added: ubuntugnome-blocker </td> </tr> </table> </div> </div> <div xmlns="http://www.w3.org/1999/xhtml" itemscope="" itemtype="http://schema.org/UserComments" class="boardComment editable-message " data-baseurl="/overlay-scrollbar/+bug/1386255/comments/9" data-i-can-edit="False"> <div class="boardCommentDetails"> <div class="message-revision-container"> <div class="message-revision-container-header"> <span>Revision history for this message</span> <img src="/+icing/build/overlay/assets/skins/sam/images/close.gif" class="message-revision-close" /> </div> <script type="text/template"> <div class='message-revision-item'> <div class='message-revision-title'> <a class="sprite remove action-icon message-revision-del-btn"> Remove </a> <a class="js-action"> Revision #{revision}, created at {date_created_display} </a> </div> <div class='message-revision-body'>{content}</div> </div> </script> <div class="message-revision-list"></div> </div> <table> <tbody> <tr> <td> <a href="https://launchpad.net/~mgedmin" class="sprite person">Marius Gedminas (mgedmin)</a> wrote <time itemprop="commentTime" datetime="2014-10-28T07:38:09.527637+00:00" title="2014-10-28 07:38:09 UTC">on 2014-10-28</time><span class="editable-message-last-edit-date">: </span> </td> <td> </td> <td> </td> <td class="bug-comment-index"> <a itemprop="url" href="/overlay-scrollbar/+bug/1386255/comments/9"> #9</a> </td> </tr> </tbody> </table> </div> <div class="boardCommentBody"> <div class="editable-message-body"> <div class="comment-text editable-message-text" itemprop="commentText"><p>Details about my GDB session:</p> <p>- gdb gnome-calculator (easy to trigger the bug: click on the titlebar dropdown; bonus: doesn't hold a keyboard/mouse grab when it gets frozen by gdb)<br /> - 'run'<br /> - click on the titlebar dropdown, see the window freeze<br /> - gdb shows a segfault at 0x0<br /> - 'bt' shows the stack trace; frame #1 is g_closure_invoke; the closure pointer is the same for every crash<br /> - higher up in the stack you see it was called by gtk_grab_notify()<br /> - set a conditional breakpoint 'b g_closure_invoke if closure == 0x....'<br /> - 'run' to restart<br /> - click on the titlebar dropdown again<br /> - the breakpoint trips three times; first two are benign so hit 'cont' twice; the third one causes the crash<br /> - single-stepping with 'n' and 's' shows that you end up in g_type_<wbr />class_meta_<wbr />marshal(<wbr />) for GtkScrollbar, with a callback at some address (0x7fffeeb3abe0)<br /> - gdb was unable to resolve that address to a symbol, but /proc/$(pidof gnome-calculato<wbr />r)/maps shows it was in the range mapped to /usr/lib/<wbr />x86_64-<wbr />linux-gnu/<wbr />gtk-3.0/<wbr />modules/<wbr />liboverlay-<wbr />scrollbar.<wbr />so</p></div> </div> <div class="editable-message-form" style="display: none"> <textarea style="width: 100%" rows="10">Details about my GDB session: - gdb gnome-calculator (easy to trigger the bug: click on the titlebar dropdown; bonus: doesn't hold a keyboard/mouse grab when it gets frozen by gdb) - 'run' - click on the titlebar dropdown, see the window freeze - gdb shows a segfault at 0x0 - 'bt' shows the stack trace; frame #1 is g_closure_invoke; the closure pointer is the same for every crash - higher up in the stack you see it was called by gtk_grab_notify() - set a conditional breakpoint 'b g_closure_invoke if closure == 0x....' - 'run' to restart - click on the titlebar dropdown again - the breakpoint trips three times; first two are benign so hit 'cont' twice; the third one causes the crash - single-stepping with 'n' and 's' shows that you end up in g_type_class_meta_marshal() for GtkScrollbar, with a callback at some address (0x7fffeeb3abe0) - gdb was unable to resolve that address to a symbol, but /proc/$(pidof gnome-calculator)/maps shows it was in the range mapped to /usr/lib/x86_64-linux-gnu/gtk-3.0/modules/liboverlay-scrollbar.so </textarea> <input type="button" value="Update" class="editable-message-update-btn" /> <input type="button" value="Cancel" class="editable-message-cancel-btn" /> </div> </div> </div> <div xmlns="http://www.w3.org/1999/xhtml" itemscope="" itemtype="http://schema.org/UserComments" class="boardComment editable-message " data-baseurl="/overlay-scrollbar/+bug/1386255/comments/10" data-i-can-edit="False"> <div class="boardCommentDetails"> <div class="message-revision-container"> <div class="message-revision-container-header"> <span>Revision history for this message</span> <img src="/+icing/build/overlay/assets/skins/sam/images/close.gif" class="message-revision-close" /> </div> <script type="text/template"> <div class='message-revision-item'> <div class='message-revision-title'> <a class="sprite remove action-icon message-revision-del-btn"> Remove </a> <a class="js-action"> Revision #{revision}, created at {date_created_display} </a> </div> <div class='message-revision-body'>{content}</div> </div> </script> <div class="message-revision-list"></div> </div> <table> <tbody> <tr> <td> <a href="https://launchpad.net/~mgedmin" class="sprite person">Marius Gedminas (mgedmin)</a> wrote <time itemprop="commentTime" datetime="2014-10-28T07:39:22.479679+00:00" title="2014-10-28 07:39:22 UTC">on 2014-10-28</time><span class="editable-message-last-edit-date">: </span> </td> <td> </td> <td> </td> <td class="bug-comment-index"> <a itemprop="url" href="/overlay-scrollbar/+bug/1386255/comments/10"> #10</a> </td> </tr> </tbody> </table> </div> <div class="boardCommentBody"> <div class="editable-message-body"> <div class="comment-text editable-message-text" itemprop="commentText"><p>For the record, I had overlay scrollbars disabled ('gsettings set com.canonical.<wbr />desktop.<wbr />interface scrollbar-mode normal') when I saw these segfaults.</p></div> </div> <div class="editable-message-form" style="display: none"> <textarea style="width: 100%" rows="10">For the record, I had overlay scrollbars disabled ('gsettings set com.canonical.desktop.interface scrollbar-mode normal') when I saw these segfaults.</textarea> <input type="button" value="Update" class="editable-message-update-btn" /> <input type="button" value="Cancel" class="editable-message-cancel-btn" /> </div> </div> </div> <div xmlns="http://www.w3.org/1999/xhtml" itemscope="" itemtype="http://schema.org/UserComments" class="boardComment editable-message " data-baseurl="/overlay-scrollbar/+bug/1386255/comments/11" data-i-can-edit="False"> <div class="boardCommentDetails"> <div class="message-revision-container"> <div class="message-revision-container-header"> <span>Revision history for this message</span> <img src="/+icing/build/overlay/assets/skins/sam/images/close.gif" class="message-revision-close" /> </div> <script type="text/template"> <div class='message-revision-item'> <div class='message-revision-title'> <a class="sprite remove action-icon message-revision-del-btn"> Remove </a> <a class="js-action"> Revision #{revision}, created at {date_created_display} </a> </div> <div class='message-revision-body'>{content}</div> </div> </script> <div class="message-revision-list"></div> </div> <table> <tbody> <tr> <td> <a href="https://launchpad.net/~mgedmin" class="sprite person">Marius Gedminas (mgedmin)</a> wrote <time itemprop="commentTime" datetime="2014-10-28T08:32:19.448700+00:00" title="2014-10-28 08:32:19 UTC">on 2014-10-28</time><span class="editable-message-last-edit-date">: </span> </td> <td> </td> <td> </td> <td class="bug-comment-index"> <a itemprop="url" href="/overlay-scrollbar/+bug/1386255/comments/11"> #11</a> </td> </tr> </tbody> </table> </div> <div class="boardCommentBody"> <div class="editable-message-body"> <div class="comment-text editable-message-text" itemprop="commentText"><p>This patch fixes the crash: <a rel="nofollow" href="https://gist.github.com/84d1545df63a4e0ad981">https:/<wbr />/gist.github.<wbr />com/84d1545df63<wbr />a4e0ad981</a></p></div> </div> <div class="editable-message-form" style="display: none"> <textarea style="width: 100%" rows="10">This patch fixes the crash: https://gist.github.com/84d1545df63a4e0ad981</textarea> <input type="button" value="Update" class="editable-message-update-btn" /> <input type="button" value="Cancel" class="editable-message-cancel-btn" /> </div> </div> </div> <div xmlns="http://www.w3.org/1999/xhtml" itemscope="" itemtype="http://schema.org/UserComments" class="boardComment editable-message " data-baseurl="/overlay-scrollbar/+bug/1386255/comments/12" data-i-can-edit="False"> <div class="boardCommentDetails"> <div class="message-revision-container"> <div class="message-revision-container-header"> <span>Revision history for this message</span> <img src="/+icing/build/overlay/assets/skins/sam/images/close.gif" class="message-revision-close" /> </div> <script type="text/template"> <div class='message-revision-item'> <div class='message-revision-title'> <a class="sprite remove action-icon message-revision-del-btn"> Remove </a> <a class="js-action"> Revision #{revision}, created at {date_created_display} </a> </div> <div class='message-revision-body'>{content}</div> </div> </script> <div class="message-revision-list"></div> </div> <table> <tbody> <tr> <td> <a href="https://launchpad.net/~mgedmin" class="sprite person">Marius Gedminas (mgedmin)</a> wrote <time itemprop="commentTime" datetime="2014-10-28T08:58:58.850889+00:00" title="2014-10-28 08:58:58 UTC">on 2014-10-28</time><span class="editable-message-last-edit-date">: </span> </td> <td> </td> <td> </td> <td class="bug-comment-index"> <a itemprop="url" href="/overlay-scrollbar/+bug/1386255/comments/12"> #12</a> </td> </tr> </tbody> </table> </div> <div class="boardCommentBody"> <div class="editable-message-body"> <div class="comment-text editable-message-text" itemprop="commentText"><p>Here's what causes the crash:</p> <p>- overlay-scrollbar's gtk_module_init() does this:</p> <p>    widget_class = g_type_class_ref (GTK_TYPE_<wbr />SCROLLBAR)<br />     pre_<wbr />hijacked_<wbr />scrollbar_<wbr />grab_notify = widget_<wbr />class-><wbr />grab_notify;</p> <p>  In GTK+ 3.14 widget_<wbr />class-><wbr />grab_notify for GTK_TYPE_SCROLLBAR is NULL.</p> <p>- overlay-scrollbar's patch_scrollbar<wbr />_class_<wbr />vtable(<wbr />) does this:</p> <p>    if (widget_<wbr />class-><wbr />grab_notify == pre_hijacked_<wbr />scrollbar_<wbr />grab_notify)<br />       widget_<wbr />class-><wbr />grab_notify = hijacked_<wbr />scrollbar_<wbr />grab_notify;</p> <p>  Since widget_<wbr />class-><wbr />grab_notify is still NULL and it is equal to pre_hijacked_<wbr />scrollbar_<wbr />grab_notify, we install our own signal handler.</p> <p>- overlay-scrollbar's hijacked_<wbr />scrollbar_<wbr />grab_notify(<wbr />) does this:</p> <p>    if (use_overlay_<wbr />scrollbar ())<br />       return;</p> <p>    (* pre_hijacked_<wbr />scrollbar_<wbr />grab_notify) (widget, was_grabbed);</p> <p>  Since in Ubuntu GNOME use_overlay_<wbr />scrollbar(<wbr />) returns a false value due, this code calls a NULL pointer and segfaults.</p> <p>A more future-proof fix would be to check all pre_hijacked_ handlers before calling them.</p></div> </div> <div class="editable-message-form" style="display: none"> <textarea style="width: 100%" rows="10">Here's what causes the crash: - overlay-scrollbar's gtk_module_init() does this: widget_class = g_type_class_ref (GTK_TYPE_SCROLLBAR) pre_hijacked_scrollbar_grab_notify = widget_class->grab_notify; In GTK+ 3.14 widget_class->grab_notify for GTK_TYPE_SCROLLBAR is NULL. - overlay-scrollbar's patch_scrollbar_class_vtable() does this: if (widget_class->grab_notify == pre_hijacked_scrollbar_grab_notify) widget_class->grab_notify = hijacked_scrollbar_grab_notify; Since widget_class->grab_notify is still NULL and it is equal to pre_hijacked_scrollbar_grab_notify, we install our own signal handler. - overlay-scrollbar's hijacked_scrollbar_grab_notify() does this: if (use_overlay_scrollbar ()) return; (* pre_hijacked_scrollbar_grab_notify) (widget, was_grabbed); Since in Ubuntu GNOME use_overlay_scrollbar() returns a false value due, this code calls a NULL pointer and segfaults. A more future-proof fix would be to check all pre_hijacked_ handlers before calling them.</textarea> <input type="button" value="Update" class="editable-message-update-btn" /> <input type="button" value="Cancel" class="editable-message-cancel-btn" /> </div> </div> </div> <div xmlns="http://www.w3.org/1999/xhtml" itemscope="" itemtype="http://schema.org/UserComments" class="boardComment editable-message " data-baseurl="/overlay-scrollbar/+bug/1386255/comments/13" data-i-can-edit="False"> <div class="boardCommentDetails"> <div class="message-revision-container"> <div class="message-revision-container-header"> <span>Revision history for this message</span> <img src="/+icing/build/overlay/assets/skins/sam/images/close.gif" class="message-revision-close" /> </div> <script type="text/template"> <div class='message-revision-item'> <div class='message-revision-title'> <a class="sprite remove action-icon message-revision-del-btn"> Remove </a> <a class="js-action"> Revision #{revision}, created at {date_created_display} </a> </div> <div class='message-revision-body'>{content}</div> </div> </script> <div class="message-revision-list"></div> </div> <table> <tbody> <tr> <td> <a href="https://launchpad.net/~mgedmin" class="sprite person">Marius Gedminas (mgedmin)</a> wrote <time itemprop="commentTime" datetime="2014-10-28T11:30:08.073291+00:00" title="2014-10-28 11:30:08 UTC">on 2014-10-28</time><span class="editable-message-last-edit-date">: </span> </td> <td> </td> <td> </td> <td class="bug-comment-index"> <a itemprop="url" href="/overlay-scrollbar/+bug/1386255/comments/13"> #13</a> </td> </tr> </tbody> </table> </div> <div class="boardCommentBody"> <div class="editable-message-body"> <div class="comment-text editable-message-text" itemprop="commentText"><p>GtkScrollbar stopped paying attention to grab_notify signals in upstream commit 26dff0d7830b45b<wbr />61fb4266664e4a5<wbr />c1f98c4091 somewhere in 3.13.x.</p> <p>You can see it online at <a rel="nofollow" href="https://github.com/GNOME/gtk/commit/26dff0d7830b45b61fb4266664e4a5c1f98c4091">https:/<wbr />/github.<wbr />com/GNOME/<wbr />gtk/commit/<wbr />26dff0d7830b45b<wbr />61fb4266664e4a5<wbr />c1f98c4091</a></p></div> </div> <div class="editable-message-form" style="display: none"> <textarea style="width: 100%" rows="10">GtkScrollbar stopped paying attention to grab_notify signals in upstream commit 26dff0d7830b45b61fb4266664e4a5c1f98c4091 somewhere in 3.13.x. You can see it online at https://github.com/GNOME/gtk/commit/26dff0d7830b45b61fb4266664e4a5c1f98c4091</textarea> <input type="button" value="Update" class="editable-message-update-btn" /> <input type="button" value="Cancel" class="editable-message-cancel-btn" /> </div> </div> </div> <div xmlns="http://www.w3.org/1999/xhtml" itemscope="" itemtype="http://schema.org/UserComments" class="boardComment editable-message " data-baseurl="/overlay-scrollbar/+bug/1386255/comments/14" data-i-can-edit="False"> <div class="boardCommentDetails"> <div class="message-revision-container"> <div class="message-revision-container-header"> <span>Revision history for this message</span> <img src="/+icing/build/overlay/assets/skins/sam/images/close.gif" class="message-revision-close" /> </div> <script type="text/template"> <div class='message-revision-item'> <div class='message-revision-title'> <a class="sprite remove action-icon message-revision-del-btn"> Remove </a> <a class="js-action"> Revision #{revision}, created at {date_created_display} </a> </div> <div class='message-revision-body'>{content}</div> </div> </script> <div class="message-revision-list"></div> </div> <table> <tbody> <tr> <td> <a href="https://launchpad.net/~janitor" class="sprite person-inactive">Launchpad Janitor (janitor)</a> wrote <time itemprop="commentTime" datetime="2014-10-29T00:50:07.716150+00:00" title="2014-10-29 00:50:07 UTC">on 2014-10-29</time><span class="editable-message-last-edit-date">: </span> </td> <td> </td> <td> </td> <td class="bug-comment-index"> <a itemprop="url" href="/overlay-scrollbar/+bug/1386255/comments/14"> #14</a> </td> </tr> </tbody> </table> </div> <div class="boardCommentBody"> <div class="editable-message-body"> <div class="comment-text editable-message-text" itemprop="commentText"><p>Status changed to 'Confirmed' because the bug affects multiple users.</p></div> </div> <div class="editable-message-form" style="display: none"> <textarea style="width: 100%" rows="10">Status changed to 'Confirmed' because the bug affects multiple users.</textarea> <input type="button" value="Update" class="editable-message-update-btn" /> <input type="button" value="Cancel" class="editable-message-cancel-btn" /> </div> </div> <div class="boardCommentActivity"> <table class="bug-activity"> <tr> <td colspan="2">Changed in overlay-scrollbar (Ubuntu): </td> </tr> <tr> <td style="text-align: right;"> <b>status</b>: </td> <td> New → Confirmed </td> </tr> </table> </div> </div> <div class="boardComment"> <div class="boardCommentDetails"> <a href="https://launchpad.net/~laney" class="sprite person">Iain Lane (laney)</a> <time title="2014-10-29 09:52:42 UTC" datetime="2014-10-29T09:52:42.109004+00:00">on 2014-10-29</time> </div> <div class="boardCommentActivity"> <table class="bug-activity"> <tr> <td colspan="2">Changed in overlay-scrollbar (Ubuntu): </td> </tr> <tr> <td style="text-align: right;"> <b>assignee</b>: </td> <td> nobody → Lars Uebernickel (larsu) </td> </tr> </table> </div> </div> <div xmlns="http://www.w3.org/1999/xhtml" itemscope="" itemtype="http://schema.org/UserComments" class="boardComment editable-message " data-baseurl="/overlay-scrollbar/+bug/1386255/comments/15" data-i-can-edit="False"> <div class="boardCommentDetails"> <div class="message-revision-container"> <div class="message-revision-container-header"> <span>Revision history for this message</span> <img src="/+icing/build/overlay/assets/skins/sam/images/close.gif" class="message-revision-close" /> </div> <script type="text/template"> <div class='message-revision-item'> <div class='message-revision-title'> <a class="sprite remove action-icon message-revision-del-btn"> Remove </a> <a class="js-action"> Revision #{revision}, created at {date_created_display} </a> </div> <div class='message-revision-body'>{content}</div> </div> </script> <div class="message-revision-list"></div> </div> <table> <tbody> <tr> <td> <a href="https://launchpad.net/~laney" class="sprite person">Iain Lane (laney)</a> wrote <time itemprop="commentTime" datetime="2014-10-29T10:03:16.223497+00:00" title="2014-10-29 10:03:16 UTC">on 2014-10-29</time><span class="editable-message-last-edit-date">: </span> </td> <td> </td> <td> </td> <td class="bug-comment-index"> <a itemprop="url" href="/overlay-scrollbar/+bug/1386255/comments/15"> #15</a> </td> </tr> </tbody> </table> </div> <div class="boardCommentBody"> <div class="editable-message-body"> <div class="comment-text editable-message-text" itemprop="commentText"><p>Looks like this is only to call the pre hijacked one if not on os, so probably OK and similar probably should be done for all of these hijacked functions. Lars, could you look?</p></div> </div> <div class="editable-message-form" style="display: none"> <textarea style="width: 100%" rows="10">Looks like this is only to call the pre hijacked one if not on os, so probably OK and similar probably should be done for all of these hijacked functions. Lars, could you look?</textarea> <input type="button" value="Update" class="editable-message-update-btn" /> <input type="button" value="Cancel" class="editable-message-cancel-btn" /> </div> </div> </div> <div xmlns="http://www.w3.org/1999/xhtml" itemscope="" itemtype="http://schema.org/UserComments" class="boardComment editable-message " data-baseurl="/overlay-scrollbar/+bug/1386255/comments/16" data-i-can-edit="False"> <div class="boardCommentDetails"> <div class="message-revision-container"> <div class="message-revision-container-header"> <span>Revision history for this message</span> <img src="/+icing/build/overlay/assets/skins/sam/images/close.gif" class="message-revision-close" /> </div> <script type="text/template"> <div class='message-revision-item'> <div class='message-revision-title'> <a class="sprite remove action-icon message-revision-del-btn"> Remove </a> <a class="js-action"> Revision #{revision}, created at {date_created_display} </a> </div> <div class='message-revision-body'>{content}</div> </div> </script> <div class="message-revision-list"></div> </div> <table> <tbody> <tr> <td> <a href="https://launchpad.net/~jochen-eppler" class="sprite person">Jochen Martin Eppler (jochen-eppler)</a> wrote <time itemprop="commentTime" datetime="2014-10-29T14:20:48.167171+00:00" title="2014-10-29 14:20:48 UTC">on 2014-10-29</time><span class="editable-message-last-edit-date">: </span> </td> <td> </td> <td> </td> <td class="bug-comment-index"> <a itemprop="url" href="/overlay-scrollbar/+bug/1386255/comments/16"> #16</a> </td> </tr> </tbody> </table> </div> <div class="boardCommentBody"> <div class="editable-message-body"> <div class="comment-text editable-message-text" itemprop="commentText"><p>Fixed for me by the following package upgrades fixed the problem for me:<br />    overlay-<wbr />scrollbar (0.2.16+<wbr />r359+14.<wbr />10.20140625-<wbr />0ubuntu1 => 0.2.16+<wbr />r359+14.<wbr />10.20140625-<wbr />0ubuntu2~<wbr />utopic1)<br />    overlay-<wbr />scrollbar-<wbr />gtk2 (0.2.16+<wbr />r359+14.<wbr />10.20140625-<wbr />0ubuntu1 => 0.2.16+<wbr />r359+14.<wbr />10.20140625-<wbr />0ubuntu2~<wbr />utopic1)<br />    overlay-<wbr />scrollbar-<wbr />gtk3 (0.2.16+<wbr />r359+14.<wbr />10.20140625-<wbr />0ubuntu1 => 0.2.16+<wbr />r359+14.<wbr />10.20140625-<wbr />0ubuntu2~<wbr />utopic1)</p> <p>Before that, the problem actually went away by *enabling* rather than disabling the overlay-scrollbars (overlay-auto instead of normal)</p> <p>Also see <a rel="nofollow" href="https://bugzilla.gnome.org/show_bug.cgi?id=738073">https:/<wbr />/bugzilla.<wbr />gnome.org/<wbr />show_bug.<wbr />cgi?id=<wbr />738073</a></p></div> </div> <div class="editable-message-form" style="display: none"> <textarea style="width: 100%" rows="10">Fixed for me by the following package upgrades fixed the problem for me: overlay-scrollbar (0.2.16+r359+14.10.20140625-0ubuntu1 => 0.2.16+r359+14.10.20140625-0ubuntu2~utopic1) overlay-scrollbar-gtk2 (0.2.16+r359+14.10.20140625-0ubuntu1 => 0.2.16+r359+14.10.20140625-0ubuntu2~utopic1) overlay-scrollbar-gtk3 (0.2.16+r359+14.10.20140625-0ubuntu1 => 0.2.16+r359+14.10.20140625-0ubuntu2~utopic1) Before that, the problem actually went away by *enabling* rather than disabling the overlay-scrollbars (overlay-auto instead of normal) Also see https://bugzilla.gnome.org/show_bug.cgi?id=738073</textarea> <input type="button" value="Update" class="editable-message-update-btn" /> <input type="button" value="Cancel" class="editable-message-cancel-btn" /> </div> </div> </div> <div class="boardComment"> <div class="boardCommentDetails"> <a href="https://launchpad.net/~es20490446e" class="sprite person">Alberto Salvia Novella (es20490446e)</a> <time title="2014-11-06 05:19:40 UTC" datetime="2014-11-06T05:19:40.421456+00:00">on 2014-11-06</time> </div> <div class="boardCommentActivity"> <table class="bug-activity"> <tr> <td colspan="2">Changed in overlay-scrollbar (Ubuntu): </td> </tr> <tr> <td style="text-align: right;"> <b>importance</b>: </td> <td> Undecided → Critical </td> </tr> </table> </div> </div> <div class="boardComment"> <div class="boardCommentDetails"> <a href="https://launchpad.net/~larsu" class="sprite person">Lars Karlitski (larsu)</a> <time title="2014-11-14 15:25:15 UTC" datetime="2014-11-14T15:25:15.272979+00:00">on 2014-11-14</time> </div> <div class="boardCommentActivity"> <table class="bug-activity"> <tr> <td colspan="2">Changed in overlay-scrollbar (Ubuntu): </td> </tr> <tr> <td style="text-align: right;"> <b>status</b>: </td> <td> Confirmed → In Progress </td> </tr> <tr> <td style="text-align: right;"> <b>assignee</b>: </td> <td> Lars Uebernickel (larsu) → Sebastien Bacher (seb128) </td> </tr> </table> </div> </div> <div class="boardComment"> <div class="boardCommentDetails"> <a href="https://launchpad.net/~gsmetal" class="sprite person">gsmetal (gsmetal)</a> <time title="2014-11-18 18:03:20 UTC" datetime="2014-11-18T18:03:20.714084+00:00">on 2014-11-18</time> </div> <div class="boardCommentActivity"> <table class="bug-activity"> <tr> <td style="text-align: right;"> <b>no longer affects</b>: </td> <td> file-roller (Ubuntu) </td> </tr> </table> </div> </div> <div class="boardComment"> <div class="boardCommentDetails"> <a href="https://launchpad.net/~seb128" class="sprite person">Sebastien Bacher (seb128)</a> <time title="2014-11-21 18:14:45 UTC" datetime="2014-11-21T18:14:45.725454+00:00">on 2014-11-21</time> </div> <div class="boardCommentActivity"> <table class="bug-activity"> <tr> <td colspan="2">Changed in overlay-scrollbar (Ubuntu): </td> </tr> <tr> <td style="text-align: right;"> <b>assignee</b>: </td> <td> Sebastien Bacher (seb128) → nobody </td> </tr> </table> </div> </div> <div xmlns="http://www.w3.org/1999/xhtml" itemscope="" itemtype="http://schema.org/UserComments" class="boardComment editable-message " data-baseurl="/overlay-scrollbar/+bug/1386255/comments/17" data-i-can-edit="False"> <div class="boardCommentDetails"> <div class="message-revision-container"> <div class="message-revision-container-header"> <span>Revision history for this message</span> <img src="/+icing/build/overlay/assets/skins/sam/images/close.gif" class="message-revision-close" /> </div> <script type="text/template"> <div class='message-revision-item'> <div class='message-revision-title'> <a class="sprite remove action-icon message-revision-del-btn"> Remove </a> <a class="js-action"> Revision #{revision}, created at {date_created_display} </a> </div> <div class='message-revision-body'>{content}</div> </div> </script> <div class="message-revision-list"></div> </div> <table> <tbody> <tr> <td> <a href="https://launchpad.net/~janitor" class="sprite person-inactive">Launchpad Janitor (janitor)</a> wrote <time itemprop="commentTime" datetime="2014-11-26T17:27:21.904933+00:00" title="2014-11-26 17:27:21 UTC">on 2014-11-26</time><span class="editable-message-last-edit-date">: </span> </td> <td> </td> <td> </td> <td class="bug-comment-index"> <a itemprop="url" href="/overlay-scrollbar/+bug/1386255/comments/17"> #17</a> </td> </tr> </tbody> </table> </div> <div class="boardCommentBody"> <div class="editable-message-body"> <div class="comment-text editable-message-text" itemprop="commentText"><p>This bug was fixed in the package overlay-scrollbar - 0.2.16+<wbr />r359+15.<wbr />04.20141126-<wbr />0ubuntu1</p> <p>---------------<br /> overlay-scrollbar (0.2.16+<wbr />r359+15.<wbr />04.20141126-<wbr />0ubuntu1) vivid; urgency=low</p> <p>  [ Tim Lunn ]<br />   * Check for null grab_notify handler before hijacking it. This fixes a<br />     crash in GTK+3.14 where grab_notify is no longer used, Thanks Marius<br />     Gedminas for the fix! (LP: <a href="/bugs/1386255" class="bug-link">#1386255</a>)<br />  -- Ubuntu daily release <email address hidden> Wed, 26 Nov 2014 15:18:56 +0000</p></div> </div> <div class="editable-message-form" style="display: none"> <textarea style="width: 100%" rows="10">This bug was fixed in the package overlay-scrollbar - 0.2.16+r359+15.04.20141126-0ubuntu1 --------------- overlay-scrollbar (0.2.16+r359+15.04.20141126-0ubuntu1) vivid; urgency=low [ Tim Lunn ] * Check for null grab_notify handler before hijacking it. This fixes a crash in GTK+3.14 where grab_notify is no longer used, Thanks Marius Gedminas for the fix! (LP: #1386255) -- Ubuntu daily release <ps-jenkins@lists.canonical.com> Wed, 26 Nov 2014 15:18:56 +0000</textarea> <input type="button" value="Update" class="editable-message-update-btn" /> <input type="button" value="Cancel" class="editable-message-cancel-btn" /> </div> </div> <div class="boardCommentActivity"> <table class="bug-activity"> <tr> <td colspan="2">Changed in overlay-scrollbar (Ubuntu): </td> </tr> <tr> <td style="text-align: right;"> <b>status</b>: </td> <td> In Progress → Fix Released </td> </tr> </table> </div> </div> <div class="boardComment"> <div class="boardCommentDetails"> <a href="https://launchpad.net/~darkxst" class="sprite person">Tim Lunn (darkxst)</a> <time title="2014-12-26 03:33:35 UTC" datetime="2014-12-26T03:33:35.992113+00:00">on 2014-12-26</time> </div> <div class="boardCommentActivity"> <table class="bug-activity"> <tr> <td colspan="2">Changed in ubuntu-gnome: </td> </tr> <tr> <td style="text-align: right;"> <b>status</b>: </td> <td> New → Fix Released 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href="/overlay-scrollbar/+bug/1386255/+attachment/4246316">Edit</a> </li> </ul> <ul> <li> <a class="sprite add" href="/overlay-scrollbar/+bug/1386255/+addcomment">Add attachment</a> </li> </ul> </div> <div class="portlet" id="portlet-watches"> <h2>Remote bug watches</h2> <ul> <li> <span class="sprite bug-remote"></span> <a class="link-external" href="https://gitlab.gnome.org/738073">gnome-bugs #738073</a> <br />[<span>RESOLVED NOTGNOME</span>] <a class="sprite edit action-icon" title="Change watch details" href="/bugs/1386255/+watch/113899">Edit</a> </li> </ul> <p>Bug watches keep track of this bug in other bug trackers.</p> </div> </div> </div> <div id="footer" class="footer"> <div class="lp-arcana"> <div class="lp-branding"> <a href="https://launchpad.net/"><img src="/@@/launchpad-footer-logo.svg" alt="Launchpad" width="65" height="18" /></a>  •  <a href="https://launchpad.net/+tour">Take the tour</a>  •  <a href="https://help.launchpad.net/">Read the guide</a>   <form 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17:15:30 2014\nDisassembly: =\u003e 0x0:\tCannot access memory at address 0x0\nEcryptfsInUse: Yes\nExecutablePath: /usr/bin/devhelp\nInstallationDate: Installed on 2012-07-25 (824 days ago)\nInstallationMedia: Ubuntu 12.04 LTS \"Precise Pangolin\" - Release amd64 (20120425)\nProcCmdline: devhelp\nSegvAnalysis:\n Segfault happened at: 0x0:\tCannot access memory at address 0x0\n PC (0x00000000) not located in a known VMA region (needed executable region)!\nSegvReason: executing NULL VMA\nSignal: 11\nSourcePackage: devhelp\nStacktraceTop:\n ?? ()\n g_closure_invoke (closure=0x11e4ce0, return_value=0x0, n_param_values=2, param_values=0x7fffd6ed0920, invocation_hint=0x7fffd6ed08c0) at /build/buildd/glib2.0-2.42.0/./gobject/gclosure.c:768\n signal_emit_unlocked_R (node=node@entry=0x11e50b0, detail=detail@entry=0, instance=instance@entry=0x182a510, emission_return=emission_return@entry=0x0, instance_and_params=instance_and_params@entry=0x7fffd6ed0920) at /build/buildd/glib2.0-2.42.0/./gobject/gsignal.c:3483\n g_signal_emit_valist (instance=\u003coptimized out\u003e, signal_id=\u003coptimized out\u003e, detail=\u003coptimized out\u003e, var_args=var_args@entry=0x7fffd6ed0ab0) at /build/buildd/glib2.0-2.42.0/./gobject/gsignal.c:3309\n g_signal_emit (instance=instance@entry=0x182a510, signal_id=\u003coptimized out\u003e, detail=detail@entry=0) at /build/buildd/glib2.0-2.42.0/./gobject/gsignal.c:3365\nTitle: devhelp crashed with SIGSEGV in g_closure_invoke()\nUpgradeStatus: Upgraded to utopic on 2014-10-24 (3 days ago)\nUserGroups: 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Bug #1386255 鈥渄evhelp and many other apps crash with SIGSEGV in ... : Bugs : overlay-scrollbar