31765 2009-11-21 02:47:58 -0800 Qt WebKit crashes when clicking on/selecting text on certain websites 2010-03-15 05:04:18 -0700 1 1 1 Unclassified WebKit New Bugs 528+ (Nightly build) PC Linux RESOLVED FIXED Qt P2 Major --- 1 pgeorges webkit-qt-unassigned girish hausmann kling laszlo.gombos pgeorges tonikitoo oldest_to_newest 165595 0 pgeorges 2009-11-21 02:47:58 -0800 I can reproduce this bug with Qt 4.5.3 and Qt 4.6.0rc1 on multiple machines running both ubuntu 9.10 and CentOS 5.2 with plugins enabled or disabled. I have created a simple Qt webkit app which guarantees a segfault when clicking on the main body text on the sample page ("http://www.smh.com.au/news/entertainment/articles/2009/11/20/1258219954593.html" so far this is the only page I have seen which crashes webkit in this way, but there may be other pages also). Basically, just load the page and click on or select the main article text a few times (sometimes it happens after a single click, other times it requires a few clicks on the text). Log: ** (<unknown>:2559): CRITICAL **: atk_object_set_name: assertion `name != NULL' failed Segmentation fault Basic webkit app which guarantees segfault for me: #include <QtGui/QApplication> #include <QtWebKit/QWebView> int main(int argc, char *argv[]) { QApplication app(argc, argv); QWebView webView; webView.settings()->setAttribute(QWebSettings::PluginsEnabled,true); webView.setUrl(QUrl::fromEncoded("http://www.smh.com.au/news/entertainment/articles/2009/11/20/1258219954593.html")); webView.show(); return app.exec(); } 165596 1 pgeorges 2009-11-21 02:51:28 -0800 BTW the log message: ** (<unknown>:2559): CRITICAL **: atk_object_set_name: assertion `name != NULL' failed Comes up as soon as the application is launched and is most likely unrelated to the crash. 166349 2 girish 2009-11-24 21:59:43 -0800 Works with r51026. Page seems to be using windowless plugins which is supported only in 4.6. 166350 3 girish 2009-11-24 22:01:47 -0800 Sorry, I should have read the complete description :-) I am able to reproduce the crash with r51026. I don't have a debug build to get a backtrace. 166891 4 tonikitoo 2009-11-27 06:26:12 -0800 totally reproducible here too. backtrace coming ... 166892 5 43950 tonikitoo 2009-11-27 06:28:05 -0800 Created attachment 43950 backtrace 1 backtrace from QtLauncher (r51397) debug build 166893 6 hausmann 2009-11-27 06:38:13 -0800 Hmm, interesting! Is the crash reproducible when recording this paint sequence using the trace graphics system and replaying it? Such a trace would make it a lot easier to fix inside of Qt. 185203 7 47561 kling 2010-01-27 13:36:26 -0800 Created attachment 47561 Reduced Qt-only testcase The QRegion-from-a-QPolygon constructor reliably crashes with certain input data. 185775 8 kling 2010-01-29 01:46:22 -0800 This issue is now being tracked in the Qt bug tracker: http://bugreports.qt.nokia.com/browse/QTBUG-7699 196488 9 vestbo 2010-03-05 09:39:32 -0800 Please follow the QtWebKit bug reporting guidelines when reporting bugs. See http://trac.webkit.org/wiki/QtWebKitBugs Specifically: - The 'QtWebKit' component should be used for bugs/features in the public QtWebKit API layer, not to signify that the bug is specific to the Qt port of WebKit http://trac.webkit.org/wiki/QtWebKitBugs#Component 198566 10 vestbo 2010-03-11 05:34:38 -0800 Fix should be available in Qt soonish (it's in staging). Please close when verified. 199615 11 kling 2010-03-15 05:04:18 -0700 Fixed for Qt 4.6.3, see http://bugreports.qt.nokia.com/browse/QTBUG-7699 43950 2009-11-27 06:28:05 -0800 2009-11-27 06:28:05 -0800 backtrace 1 bt text/plain 7182 tonikitoo MHhiNGQ1NWQ1NSBpbiBQb2x5Z29uUmVnaW9uIChQdHM9MHhhN2VjNDk4LCBDb3VudD0tMSwgcnVs ZT0wKSBhdCBwYWludGluZy9xcmVnaW9uLmNwcDozNDA2CjM0MDYJICAgICAgICB3aGlsZSAocEVU RWNoYXNlLT5iYWNrLT5icmVzLm1pbm9yX2F4aXMgPiBBRVQtPmJyZXMubWlub3JfYXhpcykKKGdk YikgCihnZGIpIAooZ2RiKSBidAojMCAgMHhiNGQ1NWQ1NSBpbiBQb2x5Z29uUmVnaW9uIChQdHM9 MHhhN2VjNDk4LCBDb3VudD0tMSwgcnVsZT0wKSBhdCBwYWludGluZy9xcmVnaW9uLmNwcDozNDA2 CiMxICAweGI0ZDU2NGUwIGluIFFSZWdpb24gKHRoaXM9MHhiZmQxY2YxMCwgYT1AMHhiZmQxY2Yx NCwgZmlsbFJ1bGU9UXQ6Ok9kZEV2ZW5GaWxsKSBhdCBwYWludGluZy9xcmVnaW9uLmNwcDozODcx CiMyICAweGI0ZDA3ODU0IGluIFFQYWludGVyOjpjbGlwUmVnaW9uICh0aGlzPTB4YmZkMWUyYjAp IGF0IHBhaW50aW5nL3FwYWludGVyLmNwcDoyNDcwCiMzICAweGI0ZDA4ODIwIGluIFFQYWludGVy 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47561 2010-01-27 13:36:26 -0800 2010-01-27 13:36:26 -0800 Reduced Qt-only testcase bug-31765-reduction.cpp text/x-c++src 243 kling I2luY2x1ZGUgPFFSZWdpb24+CiNpbmNsdWRlIDxRUG9seWdvbj4KCmludCBtYWluKGludCBhcmdj LCBjaGFyICoqYXJndikKewogICAgUVBvbHlnb24gcG9seWdvbjsKCiAgICBwb2x5Z29uIDw8IFFQ b2ludCgxMDAsIDApOwogICAgcG9seWdvbiA8PCBRUG9pbnQoLTEwMDAwMDAwLCAyKTsKICAgIHBv bHlnb24gPDwgUVBvaW50KDEwMCwgMCk7CgogICAgUVJlZ2lvbiByZWdpb24ocG9seWdvbik7Cgog ICAgcmV0dXJuIDA7Cn0K