Bug 72932 – [Qt]inspector/extensions/extensions-events.html crashing after r100926

• Status: RESOLVED
• Resolution: FIXED
• Component: New Bugs

[Renata Hodovan]

Crash log:

Segmentation fault
0: /ramdisk/qt-linux-release/build/WebKitBuild/Release/bin/DumpRenderTree() [0x806f455]
1: /ramdisk/qt-linux-release/build/WebKitBuild/Release/bin/DumpRenderTree() [0x80707a7]
2: [0xf7721400]
3: [0xed80f597]
4: /ramdisk/qt-linux-release/build/WebKitBuild/Release/lib/libQtWebKit.so.4(+0x127ef38) [0xf6ec0f38]
5: /ramdisk/qt-linux-release/build/WebKitBuild/Release/lib/libQtWebKit.so.4(+0x1377946) [0xf6fb9946]
6: /ramdisk/qt-linux-release/build/WebKitBuild/Release/lib/libQtWebKit.so.4(+0x13c4430) [0xf7006430]
7: /ramdisk/qt-linux-release/build/WebKitBuild/Release/lib/libQtWebKit.so.4(+0x12ccf7d) [0xf6f0ef7d]
8: [0xed7af095]
9: /ramdisk/qt-linux-release/build/WebKitBuild/Release/lib/libQtWebKit.so.4(+0x127ef38) [0xf6ec0f38]
10: /ramdisk/qt-linux-release/build/WebKitBuild/Release/lib/libQtWebKit.so.4(+0x1377946) [0xf6fb9946]
11: /ramdisk/qt-linux-release/build/WebKitBuild/Release/lib/libQtWebKit.so.4(+0x2bc69c) [0xf5efe69c]
12: /ramdisk/qt-linux-release/build/WebKitBuild/Release/lib/libQtWebKit.so.4(+0x2bcd3a) [0xf5efed3a]
13: /ramdisk/qt-linux-release/build/WebKitBuild/Release/lib/libQtWebKit.so.4(+0x2bce7e) [0xf5efee7e]
14: /ramdisk/qt-linux-release/build/WebKitBuild/Release/lib/libQtWebKit.so.4(+0x78f184) [0xf63d1184]
15: /ramdisk/qt-linux-release/build/WebKitBuild/Release/lib/libQtWebKit.so.4(+0x8940a9) [0xf64d60a9]
16: /ramdisk/qt-linux-release/build/WebKitBuild/Release/lib/libQtWebKit.so.4(+0x89418d) [0xf64d618d]
17: /ramdisk/qt-linux-release/build/WebKitBuild/Release/lib/libQtWebKit.so.4(+0xa81816) [0xf66c3816]
18: /usr/local/Trolltech/Qt-4.8.0-rc1/lib/libQtCore.so.4(_ZN7QObject5eventEP6QEvent+0x84) [0xf4ca1df4]
19: /usr/local/Trolltech/Qt-4.8.0-rc1/lib/libQtGui.so.4(_ZN19QApplicationPrivate13notify_helperEP7QObjectP6QEvent+0xac) [0xf4f53dfc]
20: /usr/local/Trolltech/Qt-4.8.0-rc1/lib/libQtGui.so.4(_ZN12QApplication6notifyEP7QObjectP6QEvent+0x162) [0xf4f59e22]
21: /usr/local/Trolltech/Qt-4.8.0-rc1/lib/libQtCore.so.4(_ZN16QCoreApplication14notifyInternalEP7QObjectP6QEvent+0x7b) [0xf4c8eabb]
22: /usr/local/Trolltech/Qt-4.8.0-rc1/lib/libQtCore.so.4(+0x1c5457) [0xf4cc5457]
23: /usr/local/Trolltech/Qt-4.8.0-rc1/lib/libQtCore.so.4(+0x1c243a) [0xf4cc243a]
24: /usr/local/Trolltech/Qt-4.8.0-rc1/lib/libQtCore.so.4(+0x1c2474) [0xf4cc2474]
25: /lib/libglib-2.0.so.0(g_main_context_dispatch+0x1d5) [0xf470b305]
26: /lib/libglib-2.0.so.0(+0x3efe8) [0xf470efe8]
27: /lib/libglib-2.0.so.0(g_main_context_iteration+0x68) [0xf470f1c8]
28: /usr/local/Trolltech/Qt-4.8.0-rc1/lib/libQtCore.so.4(_ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE+0x65) [0xf4cc2125]
29: /usr/local/Trolltech/Qt-4.8.0-rc1/lib/libQtGui.so.4(+0x226465) [0xf500e465]
30: /usr/local/Trolltech/Qt-4.8.0-rc1/lib/libQtCore.so.4(_ZN10QEventLoop13processEventsE6QFlagsINS_17ProcessEventsFlagEE+0x49) [0xf4c8d379]
31: /usr/local/Trolltech/Qt-4.8.0-rc1/lib/libQtCore.so.4(_ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE+0x182) [0xf4c8d882]
32: /usr/local/Trolltech/Qt-4.8.0-rc1/lib/libQtCore.so.4(_ZN16QCoreApplication4execEv+0xaf) [0xf4c93c3f]
33: /usr/local/Trolltech/Qt-4.8.0-rc1/lib/libQtGui.so.4(_ZN12QApplication4execEv+0x27) [0xf4f52e67]
34: /ramdisk/qt-linux-release/build/WebKitBuild/Release/bin/DumpRenderTree() [0x8070401]
35: /lib/libc.so.6(__libc_start_main+0xe6) [0xf430cc76]
36: /ramdisk/qt-linux-release/build/WebKitBuild/Release/bin/DumpRenderTree() [0x805d3d1]

[Csaba Osztrogonác]

This crash occured only on 32 bit QtWebKit. It is P1/critical bug, because it is a crash.

[Csaba Osztrogonác]

Pavel, have you got any idea how http://trac.webkit.org/changeset/100926 broke this test? Unfortunately we don't have gdb backtrace in debug mode, because debug linking is impossible nowadays on 32 bit. (Linker runs out of 4Gb address space)

[Csaba Osztrogonác]

We can easily reproduce it with the following command: 
$ Tools/Scripts/old-run-webkit-tests inspector/extensions/extensions-console.html inspector/extensions/extensions-events.html

[Pavel Feldman]

I was recently making inspector tests on Qt pass.

[Csaba Osztrogonác]

It works now, so I unskipped it - http://trac.webkit.org/changeset/107560.