[Mono-dev] Mono/Kde-binding(qyoto) bug?

Ishwor Gurung ishwor at loopback.ath.cx
Sun Apr 5 09:04:53 EDT 2009


Hi,

My setting:
- Qyoto version 4.4.0
- Mono C# version 2.0.1.0

My qyoto widget has a small QTextEdit box to type messages in (which is
invoked when a user presses a button). They are all good and OK (the
user interface bits).


However, at runtime if I type some text into the QTextEdit and move my
mouse towards another window, I get a sigabort with the following output -

///////////////////////////////////////////////////////////////////////
Stacktrace:

  at (wrapper managed-to-native) Qyoto.SmokeInvocation.CallSmokeMethod
(intptr,int,intptr,intptr,int) <0x00004>
  at (wrapper managed-to-native) Qyoto.SmokeInvocation.CallSmokeMethod
(intptr,int,intptr,intptr,int) <0xffffffff>
  at Qyoto.SmokeInvocation.Invoke (string,string,System.Type,object[])
[0x00399] in
/build/buildd/qt-mono-bindings-4.2.1/csharp/qyoto/src/SmokeInvocation.cs:609
  at Qyoto.QApplication.Exec () [0x00000] in
/build/buildd/qt-mono-bindings-4.2.1/csharp/qyoto/gui/QApplication.cs:278
  at Rirc.Rirc.Main (string[]) [0x00013] in
/home/ishwor/workspace/csharp/Rirc/Rirc.cs:16
  at (wrapper runtime-invoke) Rirc.Rirc.runtime_invoke_void_string[]
(object,intptr,intptr,intptr) <0xffffffff>

Native stacktrace:

	/usr/bin/mono [0x806d954]
	/usr/bin/mono [0x80861bb]
	[0xb7fa6410]
	/usr/lib/kde4/plugins/styles/oxygen.so [0xb599e7bd]
	/usr/lib/libQtCore.so.4(_ZN23QCoreApplicationPrivate29sendThroughObjectEventFiltersEP7QObjectP6QEvent+0x9a)
[0xb6b8404a]
	/usr/lib/libQtGui.so.4(_ZN19QApplicationPrivate13notify_helperEP7QObjectP6QEvent+0x9a)
[0xb62758ca]
	/usr/lib/libQtGui.so.4(_ZN12QApplication6notifyEP7QObjectP6QEvent+0x1196)
[0xb627e806]
	/usr/lib/libsmokeqt.so.2 [0xb6dc5dab]
	/usr/lib/libQtCore.so.4(_ZN16QCoreApplication14notifyInternalEP7QObjectP6QEvent+0xb1)
[0xb6b84e61]
	/usr/lib/libQtGui.so.4 [0xb62d63de]
	/usr/lib/libQtGui.so.4 [0xb630cbb0]
	/usr/lib/libQtGui.so.4 [0xb630ed26]
	/usr/lib/libQtGui.so.4(_ZN12QApplication15x11ProcessEventEP7_XEvent+0x735)
[0xb62e5af5]
	/usr/lib/libQtGui.so.4 [0xb63107aa]
	/usr/lib/libglib-2.0.so.0(g_main_context_dispatch+0x1e8) [0xb7ee7718]
	/usr/lib/libglib-2.0.so.0 [0xb7eeadc3]
	/usr/lib/libglib-2.0.so.0(g_main_context_iteration+0x71) [0xb7eeaf81]
	/usr/lib/libQtCore.so.4(_ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE+0x58)
[0xb6baf478]
	/usr/lib/libQtGui.so.4 [0xb630fea5]
	/usr/lib/libQtCore.so.4(_ZN10QEventLoop13processEventsE6QFlagsINS_17ProcessEventsFlagEE+0x4a)
[0xb6b8352a]
	/usr/lib/libQtCore.so.4(_ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE+0xea)
[0xb6b836ea]
	/usr/lib/libQtCore.so.4(_ZN16QCoreApplication4execEv+0xb5) [0xb6b85da5]
	/usr/lib/libQtGui.so.4(_ZN12QApplication4execEv+0x27) [0xb6275767]
	/usr/lib/libsmokeqt.so.2 [0xb6dbfafa]
	/usr/lib/libqyotoshared.so.1(_ZN5Qyoto10MethodCall10callMethodEv+0x17b)
[0xb704705b]
	/usr/lib/libqyotoshared.so.1(_ZN5Qyoto10MethodCall4nextEv+0x74)
[0xb7047474]
	/usr/lib/cli/kdebindings-4.4/libqyoto.so(CallSmokeMethod+0x81)
[0xb709a261]
	[0xb708b9f5]
	[0xb792a432]
	[0xb59dbd47]
	[0xb791e27a]
	[0xb791e1b3]
	/usr/bin/mono(mono_runtime_exec_main+0xe5) [0x80d3695]
	/usr/bin/mono(mono_runtime_run_main+0x16b) [0x80d3e0b]
	/usr/bin/mono(mono_main+0x1737) [0x805c927]
	/usr/bin/mono [0x805ac62]
	/lib/tls/i686/cmov/libc.so.6(__libc_start_main+0xe5) [0xb7d19685]
	/usr/bin/mono [0x805aba1]

Debug info from gdb:

(no debugging symbols found)
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[Thread debugging using libthread_db enabled]
[New Thread 0xb7cd76d0 (LWP 31404)]
[New Thread 0xb7527b90 (LWP 31411)]
[New Thread 0xb791db90 (LWP 31406)]
(no debugging symbols found)
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0xb7fa6430 in __kernel_vsyscall ()
  3 Thread 0xb791db90 (LWP 31406)  0xb7fa6430 in __kernel_vsyscall ()
  2 Thread 0xb7527b90 (LWP 31411)  0xb7fa6430 in __kernel_vsyscall ()
  1 Thread 0xb7cd76d0 (LWP 31404)  0xb7fa6430 in __kernel_vsyscall ()

Thread 3 (Thread 0xb791db90 (LWP 31406)):
#0  0xb7fa6430 in __kernel_vsyscall ()
#1  0xb7e94906 in nanosleep () from /lib/tls/i686/cmov/libpthread.so.0
#2  0x0814fc48 in ?? ()
#3  0xb7e8d50f in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#4  0xb7de4a0e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 2 (Thread 0xb7527b90 (LWP 31411)):
#0  0xb7fa6430 in __kernel_vsyscall ()
#1  0xb7e91075 in pthread_cond_wait@@GLIBC_2.3.2 ()
   from /lib/tls/i686/cmov/libpthread.so.0
#2  0x08141c47 in ?? ()
#3  0x08144834 in ?? ()
#4  0x0814489c in ?? ()
#5  0x08150822 in ?? ()
#6  0x080e6aea in ?? ()
#7  0x08118679 in ?? ()
#8  0x081564f6 in ?? ()
#9  0x0816f5d5 in ?? ()
#10 0xb7e8d50f in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#11 0xb7de4a0e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 1 (Thread 0xb7cd76d0 (LWP 31404)):
#0  0xb7fa6430 in __kernel_vsyscall ()
#1  0xb7de0fb7 in syscall () from /lib/tls/i686/cmov/libc.so.6
#2  0x0806d9f7 in ?? ()
#3  0x080861bb in ?? ()
#4  <signal handler called>
#5  0x00000378 in ?? ()
#6  0xb599e7bd in ?? () from /usr/lib/kde4/plugins/styles/oxygen.so
#7  0xb6b8404a in QCoreApplicationPrivate::sendThroughObjectEventFilters ()
   from /usr/lib/libQtCore.so.4
#8  0xb62758ca in QApplicationPrivate::notify_helper ()
   from /usr/lib/libQtGui.so.4
#9  0xb627e806 in QApplication::notify () from /usr/lib/libQtGui.so.4
#10 0xb6dc5dab in ?? () from /usr/lib/libsmokeqt.so.2
#11 0xb6b84e61 in QCoreApplication::notifyInternal ()
   from /usr/lib/libQtCore.so.4
#12 0xb62d63de in ?? () from /usr/lib/libQtGui.so.4
#13 0xb630cbb0 in ?? () from /usr/lib/libQtGui.so.4
#14 0xb630ed26 in ?? () from /usr/lib/libQtGui.so.4
#15 0xb62e5af5 in QApplication::x11ProcessEvent () from
/usr/lib/libQtGui.so.4
#16 0xb63107aa in ?? () from /usr/lib/libQtGui.so.4
#17 0xb7ee7718 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#18 0xb7eeadc3 in ?? () from /usr/lib/libglib-2.0.so.0
#19 0xb7eeaf81 in g_main_context_iteration () from
/usr/lib/libglib-2.0.so.0
#20 0xb6baf478 in QEventDispatcherGlib::processEvents ()
   from /usr/lib/libQtCore.so.4
#21 0xb630fea5 in ?? () from /usr/lib/libQtGui.so.4
#22 0xb6b8352a in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4
#23 0xb6b836ea in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#24 0xb6b85da5 in QCoreApplication::exec () from /usr/lib/libQtCore.so.4
#25 0xb6275767 in QApplication::exec () from /usr/lib/libQtGui.so.4
#26 0xb6dbfafa in ?? () from /usr/lib/libsmokeqt.so.2
#27 0xb704705b in Qyoto::MethodCall::callMethod ()
   from /usr/lib/libqyotoshared.so.1
#28 0xb7047474 in Qyoto::MethodCall::next () from
/usr/lib/libqyotoshared.so.1
#29 0xb709a261 in CallSmokeMethod ()
   from /usr/lib/cli/kdebindings-4.4/libqyoto.so
#30 0xb708b9f5 in ?? ()
#31 0xb792a432 in ?? ()
#32 0xb59dbd47 in ?? ()
#33 0xb791e27a in ?? ()
#34 0xb791e1b3 in ?? ()
#35 0x080d3695 in mono_runtime_exec_main ()
#36 0x080d3e0b in mono_runtime_run_main ()
#37 0x0805c927 in mono_main ()
#38 0x0805ac62 in ?? ()
#39 0xb7d19685 in __libc_start_main () from /lib/tls/i686/cmov/libc.so.6
#40 0x0805aba1 in ?? ()
#0  0xb7fa6430 in __kernel_vsyscall ()

=================================================================
Got a SIGSEGV while executing native code. This usually indicates
a fatal error in the mono runtime or one of the native libraries
used by your application.
=================================================================

The application was terminated by a signal: SIGABRT
///////////////////////////////////////////////////////////////////////


Different bug again while running the same application -


///////////////////////////////////////////////////////////////////////
mono: ../../src/xcb_lock.c:77: _XGetXCBBuffer: Assertion `((int)
((xcb_req) - (dpy->request)) >= 0)' failed.
Stacktrace:

  at (wrapper managed-to-native) Qyoto.SmokeInvocation.CallSmokeMethod
(intptr,int,intptr,intptr,int) <0x00004>
  at (wrapper managed-to-native) Qyoto.SmokeInvocation.CallSmokeMethod
(intptr,int,intptr,intptr,int) <0xffffffff>
  at Qyoto.SmokeInvocation.Invoke (string,string,System.Type,object[])
[0x003d1] in
/build/buildd/qt-mono-bindings-4.2.1/csharp/qyoto/src/SmokeInvocation.cs:616
  at Qyoto.QWidget.Finalize () [0x00000] in
/build/buildd/qt-mono-bindings-4.2.1/csharp/qyoto/gui/QWidget.cs:939
  at (wrapper runtime-invoke) System.Object.runtime_invoke_void__this__
(object,intptr,intptr,intptr) <0xffffffff>

Native stacktrace:

	/usr/bin/mono [0x806d954]
	[0xb80b4410]
	/lib/tls/i686/cmov/libc.so.6(abort+0x188) [0xb7e3e268]
	/lib/tls/i686/cmov/libc.so.6(__assert_fail+0xee) [0xb7e3572e]
	/usr/lib/libX11.so.6 [0xb5cad424]
	/usr/lib/libX11.so.6(_XSend+0x63) [0xb5cae843]
	/usr/lib/libX11.so.6(_XFlush+0x32) [0xb5caea02]
	/usr/lib/libX11.so.6(XFlush+0x31) [0xb5c85f61]
	/usr/lib/libQtGui.so.4(_ZN14QWidgetPrivate8hide_sysEv+0x6e) [0xb640d1ce]
	/usr/lib/libQtGui.so.4(_ZN14QWidgetPrivate11hide_helperEv+0x63)
[0xb63d5d43]
	/usr/lib/libQtGui.so.4(_ZN7QWidget10setVisibleEb+0x430) [0xb63df0a0]
	/usr/lib/libQtGui.so.4(_ZN7QWidgetD2Ev+0x36d) [0xb63dcb3d]
	/usr/lib/libsmokeqt.so.2 [0xb70643f8]
	/usr/lib/libsmokeqt.so.2 [0xb7049d3a]
	/usr/lib/libqyotoshared.so.1(_ZN5Qyoto10MethodCall10callMethodEv+0x17b)
[0xb715505b]
	/usr/lib/libqyotoshared.so.1(_ZN5Qyoto10MethodCall4nextEv+0x74)
[0xb7155474]
	/usr/lib/cli/kdebindings-4.4/libqyoto.so(CallSmokeMethod+0x81)
[0xb71a8261]
	[0xb71999f5]
	[0xb7a384c1]
	[0xb5aebb76]
	[0xb7a35921]
	/usr/bin/mono [0x80e69e9]
	/usr/bin/mono [0x8172061]
	/usr/bin/mono [0x80e6bdc]
	/usr/bin/mono [0x8118679]
	/usr/bin/mono [0x81564f6]
	/usr/bin/mono [0x816f5d5]
	/lib/tls/i686/cmov/libpthread.so.0 [0xb7f9b50f]
	/lib/tls/i686/cmov/libc.so.6(clone+0x5e) [0xb7ef2a0e]

Debug info from gdb:

(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
[Thread debugging using libthread_db enabled]
[New Thread 0xb7de56d0 (LWP 32435)]
[New Thread 0xb7635b90 (LWP 32439)]
[New Thread 0xb7a2bb90 (LWP 32438)]
(no debugging symbols found)
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(no debugging symbols found)Is this a bug in the Mono or is it
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0xb80b4430 in __kernel_vsyscall ()
  3 Thread 0xb7a2bb90 (LWP 32438)  0xb80b4430 in __kernel_vsyscall ()
  2 Thread 0xb7635b90 (LWP 32439)  0xb80b4430 in __kernel_vsyscall ()
  1 Thread 0xb7de56d0 (LWP 32435)  0xb80b4430 in __kernel_vsyscall ()

Thread 3 (Thread 0xb7a2bb90 (LWP 32438)):
#0  0xb80b4430 in __kernel_vsyscall ()
#1  0xb7fa2906 in nanosleep () from /lib/tls/i686/cmov/libpthread.so.0
#2  0x0814fc48 in ?? ()
#3  0xb7f9b50f in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#4  0xb7ef2a0e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 2 (Thread 0xb7635b90 (LWP 32439)):
#0  0xb80b4430 in __kernel_vsyscall ()
#1  0xb7fa210b in read () from /lib/tls/i686/cmov/libpthread.so.0
#2  0x0806da6e in ?? ()
#3  <signal handler called>
#4  0xb80b4430 in __kernel_vsyscall ()
#5  0xb7e3c8a0 in raise () from /lib/tls/i686/cmov/libc.so.6
#6  0xb7e3e268 in abort () from /lib/tls/i686/cmov/libc.so.6
#7  0xb7e3572e in __assert_fail () from /lib/tls/i686/cmov/libc.so.6
#8  0xb5cad424 in _XGetXCBBuffer () from /usr/lib/libX11.so.6
#9  0xb5cae843 in _XSend () from /usr/lib/libX11.so.6
#10 0xb5caea02 in _XFlush () from /usr/lib/libX11.so.6
#11 0xb5c85f61 in XFlush () from /usr/lib/libX11.so.6
#12 0xb640d1ce in QWidgetPrivate::hide_sys () from /usr/lib/libQtGui.so.4
#13 0xb63d5d43 in QWidgetPrivate::hide_helper () from
/usr/lib/libQtGui.so.4
#14 0xb63df0a0 in QWidget::setVisible () from /usr/lib/libQtGui.so.4
#15 0xb63dcb3d in QWidget::~QWidget () from /usr/lib/libQtGui.so.4
#16 0xb70643f8 in ?? () from /usr/lib/libsmokeqt.so.2
#17 0xb7049d3a in ?? () from /usr/lib/libsmokeqt.so.2
#18 0xb715505b in Qyoto::MethodCall::callMethod ()
   from /usr/lib/libqyotoshared.so.1
#19 0xb7155474 in Qyoto::MethodCall::next () from
/usr/lib/libqyotoshared.so.1
#20 0xb71a8261 in CallSmokeMethod ()
   from /usr/lib/cli/kdebindings-4.4/libqyoto.so
#21 0xb71999f5 in ?? ()
#22 0xb7a384c1 in ?? ()
#23 0xb5aebb76 in ?? ()
#24 0xb7a35921 in ?? ()
#25 0x080e69e9 in ?? ()
#26 0x08172061 in ?? ()
#27 0x080e6bdc in ?? ()
#28 0x08118679 in ?? ()
#29 0x081564f6 in ?? ()
#30 0x0816f5d5 in ?? ()
#31 0xb7f9b50f in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#32 0xb7ef2a0e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 1 (Thread 0xb7de56d0 (LWP 32435)):
#0  0xb80b4430 in __kernel_vsyscall ()
#1  0xb7f9f075 in pthread_cond_wait@@GLIBC_2.3.2 ()
   from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb5b7bc87 in ?? () from /usr/lib/libxcb.so.1
#3  0xb5b7cb9f in xcb_send_request () from /usr/lib/libxcb.so.1
#4  0xb5cad166 in _XPutXCBBuffer () from /usr/lib/libX11.so.6
#5  0xb5cad530 in ?? () from /usr/lib/libX11.so.6
#6  0xb5c9f277 in XSetClipRectangles () from /usr/lib/libX11.so.6
#7  0xb653aeb3 in ?? () from /usr/lib/libQtGui.so.4
#8  0xb653bb14 in ?? () from /usr/lib/libQtGui.so.4
#9  0xb648c83b in ?? () from /usr/lib/libQtGui.so.4
#10 0xb648c90b in ?? () from /usr/lib/libQtGui.so.4
#11 0xb648d858 in ?? () from /usr/lib/libQtGui.so.4
#12 0xb648dc9e in ?? () from /usr/lib/libQtGui.so.4
#13 0xb6490515 in QPainter::QPainter () from /usr/lib/libQtGui.so.4
#14 0xb5aad6ff in ?? () from /usr/lib/kde4/plugins/styles/oxygen.so
#15 0xb6c9204a in QCoreApplicationPrivate::sendThroughObjectEventFilters ()
   from /usr/lib/libQtCore.so.4
#16 0xb63838ca in QApplicationPrivate::notify_helper ()
   from /usr/lib/libQtGui.so.4
#17 0xb638b7fa in QApplication::notify () from /usr/lib/libQtGui.so.4
#18 0xb6ed3dab in ?? () from /usr/lib/libsmokeqt.so.2
#19 0xb6c92e61 in QCoreApplication::notifyInternal ()
   from /usr/lib/libQtCore.so.4
#20 0xb63e43de in ?? () from /usr/lib/libQtGui.so.4
#21 0xb63da110 in QWidgetPrivate::drawWidget () from /usr/lib/libQtGui.so.4
#22 0xb63da8b2 in QWidgetPrivate::paintSiblingsRecursive ()
   from /usr/lib/libQtGui.so.4
#23 0xb63d9d88 in QWidgetPrivate::drawWidget () from /usr/lib/libQtGui.so.4
#24 0xb6549fae in ?? () from /usr/lib/libQtGui.so.4
#25 0xb654a4a7 in ?? () from /usr/lib/libQtGui.so.4
#26 0xb63db576 in QWidget::event () from /usr/lib/libQtGui.so.4
#27 0xb706429c in ?? () from /usr/lib/libsmokeqt.so.2
#28 0xb63838ec in QApplicationPrivate::notify_helper ()
   from /usr/lib/libQtGui.so.4
#29 0xb638b7fa in QApplication::notify () from /usr/lib/libQtGui.so.4
#30 0xb6ed3dab in ?? () from /usr/lib/libsmokeqt.so.2
#31 0xb6c92e61 in QCoreApplication::notifyInternal ()
   from /usr/lib/libQtCore.so.4
#32 0xb6c93ae5 in QCoreApplicationPrivate::sendPostedEvents ()
   from /usr/lib/libQtCore.so.4
#33 0xb6c93cdd in QCoreApplication::sendPostedEvents ()
   from /usr/lib/libQtCore.so.4
#34 0xb6cbd82f in ?? () from /usr/lib/libQtCore.so.4
#35 0xb7ff5718 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#36 0xb7ff8dc3 in ?? () from /usr/lib/libglib-2.0.so.0
#37 0xb7ff8f81 in g_main_context_iteration () from
/usr/lib/libglib-2.0.so.0
#38 0xb6cbd478 in QEventDispatcherGlib::processEvents ()
   from /usr/lib/libQtCore.so.4
#39 0xb641dea5 in ?? () from /usr/lib/libQtGui.so.4
#40 0xb6c9152a in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4
#41 0xb6c916ea in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#42 0xb6c93da5 in QCoreApplication::exec () from /usr/lib/libQtCore.so.4
#43 0xb6383767 in QApplication::exec () from /usr/lib/libQtGui.so.4
#44 0xb6ecdafa in ?? () from /usr/lib/libsmokeqt.so.2
#45 0xb715505b in Qyoto::MethodCall::callMethod ()
   from /usr/lib/libqyotoshared.so.1
#46 0xb7155474 in Qyoto::MethodCall::next () from
/usr/lib/libqyotoshared.so.1
#47 0xb71a8261 in CallSmokeMethod ()
   from /usr/lib/cli/kdebindings-4.4/libqyoto.so
#48 0xb71999f5 in ?? ()
#49 0xb7a38432 in ?? ()
#50 0xb5ae9d47 in ?? ()
#51 0xb7a2c27a in ?? ()
#52 0xb7a2c1b3 in ?? ()
#53 0x080d3695 in mono_runtime_exec_main ()
#54 0x080d3e0b in mono_runtime_run_main ()
#55 0x0805c927 in mono_main ()
#56 0x0805ac62 in ?? ()
#57 0xb7e27685 in __libc_start_main () from /lib/tls/i686/cmov/libc.so.6
#58 0x0805aba1 in ?? ()
#0  0xb80b4430 in __kernel_vsyscall ()

=================================================================
Got a SIGABRT while executing native code. This usually indicates
a fatal error in the mono runtime or one of the native libraries
used by your application.
=================================================================


The application was terminated by a signal: SIGABRT

///////////////////////////////////////////////////////////////////////

It could be my runtime bug but I dont see any reason it should crash
except if it has problem with the mono/qyoto library. If anythings
needed on my part, let me know. I ahave crossposted because i am not
too sure whether its mono/qyoto bug. Thanks!

-- 
	Cheers,
	Ishwor Gurung
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