SUMMARY Python2 backend crashes with a mouse click, but not if Shift+Enter STEPS TO REPRODUCE 1. Compile the latest Cantor sources 2. Enter in (but don't execute for now) the following simple example: ``` python import matplotlib matplotlib.use("WXAgg") import matplotlib.pyplot as plt import numpy as np x = np.arange(0, 10, 0.2) y = np.sin(x) fig, ax = plt.subplots() ax.plot(x, y) plt.show() ``` 3. Click on the "green triangle" to execute a cell OBSERVED RESULT Cantor crashes EXPECTED RESULT The cell result SOFTWARE/OS VERSIONS ar reported earlier ADDITIONAL INFORMATION Cantor run under gdb ``` ─── Output/messages ─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── Invalid Context= "stock" line for icon theme: "/usr/share/icons/ubuntu-mono-dark/stock/16/" Invalid Context= "stock" line for icon theme: "/usr/share/icons/ubuntu-mono-dark/stock/22/" Invalid Context= "stock" line for icon theme: "/usr/share/icons/ubuntu-mono-dark/stock/24/" Invalid Context= "stock" line for icon theme: "/usr/share/icons/ubuntu-mono-dark/stock/32/" Invalid Context= "stock" line for icon theme: "/usr/share/icons/ubuntu-mono-dark/stock/48/" Invalid Context= "stock" line for icon theme: "/usr/share/icons/ubuntu-mono-dark/stock/64/" Invalid Context= "stock" line for icon theme: "/usr/share/icons/ubuntu-mono-dark/stock/128/" Invalid Context= "Legacy" line for icon theme: "/usr/share/icons/Adwaita/8x8/legacy/" Invalid Context= "Legacy" line for icon theme: "/usr/share/icons/Adwaita/16x16/legacy/" Invalid Context= "UI" line for icon theme: "/usr/share/icons/Adwaita/16x16/ui/" Invalid Context= "Legacy" line for icon theme: "/usr/share/icons/Adwaita/22x22/legacy/" Invalid Context= "Legacy" line for icon theme: "/usr/share/icons/Adwaita/24x24/legacy/" Invalid Context= "UI" line for icon theme: "/usr/share/icons/Adwaita/24x24/ui/" Invalid Context= "Legacy" line for icon theme: "/usr/share/icons/Adwaita/32x32/legacy/" Invalid Context= "UI" line for icon theme: "/usr/share/icons/Adwaita/32x32/ui/" Invalid Context= "Legacy" line for icon theme: "/usr/share/icons/Adwaita/48x48/legacy/" Invalid Context= "UI" line for icon theme: "/usr/share/icons/Adwaita/48x48/ui/" Invalid Context= "Legacy" line for icon theme: "/usr/share/icons/Adwaita/256x256/legacy/" Invalid Context= "Legacy" line for icon theme: "/usr/share/icons/Adwaita/512x512/legacy/" Invalid Context= "UI" line for icon theme: "/usr/share/icons/Adwaita/scalable/ui/" dir: "/usr/lib/x86_64-linux-gnu/qt5/plugins/cantor/backends" Creating MaximaBackend Creating NullBackend Creating PythonBackend Creating PythonBackend Creating RBackend Creating SageBackend Creating ScilabBackend dir: "/usr/bin/cantor/backends" [Detaching after fork from child process 12264] [Detaching after fork from child process 12265] [Detaching after fork from child process 12266] [Detaching after fork from child process 12267] "Julia" true true [Detaching after fork from child process 12268] [Detaching after fork from child process 12269] "KAlgebra" true true "Lua" true true "Maxima" true true "nullbackend" false true "Octave" true true "Python 2" true true "Python 3" true true "Qalculate" true true "R" true true "Sage" true true "Scilab" true true Backend "Python 2" offers extensions: ("LinearAlgebraExtension", "PackagingExtension", "PlotExtension", "ScriptExtension", "VariableManagementExtension") PythonSession(0x7fffe4008bf0) Cantor::VariableManagementExtension(0x5555559380b0, name = "VariableManagementExtension") PythonHighlighter constructor PythonKeywords constructor new worksheetaccess interface loading assistants... dir: "/usr/lib/x86_64-linux-gnu/qt5/plugins/cantor/assistants" plugin "AdvancedPlot" is not supported by "Python 2" plugin "Create Matrix" is supported by "Python 2" , requires extensions ("LinearAlgebraExtension") plugin "Differentiate" is not supported by "Python 2" plugin "Eigenvalues" is not supported by "Python 2" plugin "Eigenvectors" is not supported by "Python 2" plugin "Import Package" is supported by "Python 2" , requires extensions ("PackagingExtension") plugin "Integrate" is not supported by "Python 2" plugin "Invert Matrix" is not supported by "Python 2" plugin "Plot2d" is supported by "Python 2" , requires extensions ("PlotExtension") plugin "Plot3d" is supported by "Python 2" , requires extensions ("PlotExtension") plugin "QalculatePlot" is not supported by "Python 2" plugin "RunScript" is supported by "Python 2" , requires extensions ("ScriptExtension") plugin "Solve" is not supported by "Python 2" dir: "/usr/bin/cantor/assistants" loading panel plugins for session of type "Python 2" Requesting capabilities of Python3Session dir: "/usr/lib/x86_64-linux-gnu/qt5/plugins/cantor/panels" plugin "Help" is supported, requires extensions ("") plugin "Variable Manager" is supported, requires extensions ("VariableManagementExtension") dir: "/usr/bin/cantor/panels" Requesting capabilities of Python3Session Entry Appended adding panel for "Help" adding panel for "Variable Manager" [Detaching after fork from child process 12279] evaluating: "import matplotlib\nmatplotlib.use(\"WXAgg\")\nimport matplotlib.pyplot as plt\nimport numpy as np\nx = np.arange(0, 10, 0.2)\ny = np.sin(x)\nfig, ax = plt.subplots()\nax.plot(x, y)\nplt.show()" wsStatusChange 0 wsStatusChange 0 QFileSystemWatcher::removePaths: list is empty run first expression "import matplotlib\nmatplotlib.use(\"WXAgg\")\nimport matplotlib.pyplot as plt\nimport numpy as np\nx = np.arange(0, 10, 0.2)\ny = np.sin(x)\nfig, ax = plt.subplots()\nax.plot(x, y)\nplt.savefig('/tmp/cantor_python-h12252.png')\n" send command: "code" ("import matplotlib\nmatplotlib.use(\"WXAgg\")\nimport matplotlib.pyplot as plt\nimport numpy as np\nx = np.arange(0, 10, 0.2)\ny = np.sin(x)\nfig, ax = plt.subplots()\nax.plot(x, y)\nplt.savefig('/tmp/cantor_python-t12252.png')\n") Thread 1 "cantor" received signal SIGSEGV, Segmentation fault. 0x00007ffff621e95d in QIODevice::write(char const*, long long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 ─── Assembly ────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── 0x00007ffff621e955 ? push %rbx 0x00007ffff621e956 ? mov %rdi,%rbp 0x00007ffff621e959 ? sub $0x18,%rsp 0x00007ffff621e95d ? mov 0x8(%rdi),%rbx 0x00007ffff621e961 ? mov 0x70(%rbx),%eax 0x00007ffff621e964 ? test $0x2,%al 0x00007ffff621e966 ? jne 0x7ffff621e998 <_ZN9QIODevice5writeEPKcx+72> ─── Expressions ─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── ─── History ─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── ─── Memory ──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── ─── Registers ───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── rax 0x00007fffffffb450 rbx 0x0000555555c6d6a0 rcx 0x0000000000000000 rdx 0x00000000000000df rsi 0x0000555555edc8f8 rdi 0x0000000000000000 rbp 0x0000000000000000 rsp 0x00007fffffffb3c0 r8 0x00007ffff5e63c40 r9 0x0000000000000007 r10 0x000000000000001d r11 0x0000000000000001 r12 0x00000000000001b2 r13 0x0000555555c6d698 r14 0x0000000000000000 r15 0x00007fffffffb450 rip 0x00007ffff621e95d eflags [ PF IF RF ] cs 0x00000033 ss 0x0000002b ds 0x00000000 es 0x00000000 fs 0x00000000 gs 0x00000000 ─── Source ──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── ─── Stack ───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── [0] from 0x00007ffff621e95d in QIODevice::write(char const*, long long) (no arguments) [1] from 0x00007fffe00165e1 in PythonSession::sendCommand(QString const&, QStringList) const (no arguments) [+] ─── Threads ─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── [6] id 12261 name cantor:disk$0 from 0x00007ffff5c673bb in futex_wait_cancelable+27 at ../sysdeps/unix/sysv/linux/futex-internal.h:88 [5] id 12259 name QDBusConnection from 0x00007ffff5d90729 in __GI___poll+73 at ../sysdeps/unix/sysv/linux/poll.c:29 [4] id 12258 name gdbus from 0x00007ffff5d90729 in __GI___poll+73 at ../sysdeps/unix/sysv/linux/poll.c:29 [3] id 12257 name gmain from 0x00007ffff5d90729 in __GI___poll+73 at ../sysdeps/unix/sysv/linux/poll.c:29 [2] id 12256 name QXcbEventReader from 0x00007ffff5d90729 in __GI___poll+73 at ../sysdeps/unix/sysv/linux/poll.c:29 [1] id 12252 name cantor from 0x00007ffff621e95d in QIODevice::write(char const*, long long) ─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── >>> bt #0 0x00007ffff621e95d in QIODevice::write(char const*, long long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #1 0x00007fffe00165e1 in PythonSession::sendCommand(QString const&, QStringList) const () at /usr/lib/x86_64-linux-gnu/libcantor_pythonbackend.so #2 0x00007fffe0016b9b in PythonSession::runFirstExpression() () at /usr/lib/x86_64-linux-gnu/libcantor_pythonbackend.so #3 0x00007fffe00160b6 in PythonSession::evaluateExpression(QString const&, Cantor::Expression::FinishingBehavior, bool) () at /usr/lib/x86_64-linux-gnu/libcantor_pythonbackend.so #4 0x00007fffc95044c5 in () at /usr/lib/x86_64-linux-gnu/qt5/plugins/libcantorpart.so #5 0x00007fffc94cc2dc in () at /usr/lib/x86_64-linux-gnu/qt5/plugins/libcantorpart.so #6 0x00007ffff6328645 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #7 0x00007fffc9519570 in () at /usr/lib/x86_64-linux-gnu/qt5/plugins/libcantorpart.so #8 0x00007ffff735451c in QGraphicsItem::sceneEvent(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 #9 0x00007ffff7377968 in () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 #10 0x00007ffff737cc9a in QGraphicsScene::mouseReleaseEvent(QGraphicsSceneMouseEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 #11 0x00007ffff7386aa0 in QGraphicsScene::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 #12 0x00007ffff707783c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 #13 0x00007ffff707f104 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 #14 0x00007ffff62f99c8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #15 0x00007ffff73a3d2c in QGraphicsView::mouseReleaseEvent(QMouseEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 #16 0x00007ffff70b6048 in QWidget::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 #17 0x00007ffff71574de in QFrame::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 #18 0x00007ffff73a4c5b in QGraphicsView::viewportEvent(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 #19 0x00007ffff62f96ac in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #20 0x00007ffff7077815 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 #21 0x00007ffff707f65f in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 #22 0x00007ffff62f99c8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #23 0x00007ffff707e632 in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 #24 0x00007ffff70d116b in () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 #25 0x00007ffff70d37da in () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 #26 0x00007ffff707783c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 #27 0x00007ffff707f104 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 #28 0x00007ffff62f99c8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #29 0x00007ffff68bb583 in QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5 #30 0x00007ffff68bd055 in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5 #31 0x00007ffff68942eb in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5 #32 0x00007fffee503260 in () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5 #33 0x00007ffff329e48e in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #34 0x00007ffff329e728 in () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #35 0x00007ffff329e7c0 in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #36 0x00007ffff635297f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #37 0x00007ffff62f79fa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #38 0x00007ffff6300aa4 in QCoreApplication::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #39 0x0000555555563084 in () #40 0x00007ffff5ca5b6b in __libc_start_main (main=0x5555555623c0, argc=1, argv=0x7fffffffcbc8, init=<optimised out>, fini=<optimised out>, rtld_fini=<optimised out>, stack_end=0x7fffffffcbb8) at ../csu/libc-start.c:308 #41 0x000055555556388a in () >>> disassemble Dump of assembler code for function _ZN9QIODevice5writeEPKcx: 0x00007ffff621e950 <+0>: push %r13 0x00007ffff621e952 <+2>: push %r12 0x00007ffff621e954 <+4>: push %rbp 0x00007ffff621e955 <+5>: push %rbx 0x00007ffff621e956 <+6>: mov %rdi,%rbp 0x00007ffff621e959 <+9>: sub $0x18,%rsp => 0x00007ffff621e95d <+13>: mov 0x8(%rdi),%rbx 0x00007ffff621e961 <+17>: mov 0x70(%rbx),%eax 0x00007ffff621e964 <+20>: test $0x2,%al 0x00007ffff621e966 <+22>: jne 0x7ffff621e998 <_ZN9QIODevice5writeEPKcx+72> 0x00007ffff621e968 <+24>: test %eax,%eax 0x00007ffff621e96a <+26>: je 0x7ffff621ea60 <_ZN9QIODevice5writeEPKcx+272> 0x00007ffff621e970 <+32>: lea 0x271fa7(%rip),%rdx # 0x7ffff649091e 0x00007ffff621e977 <+39>: lea 0x271f9a(%rip),%rsi # 0x7ffff6490918 0x00007ffff621e97e <+46>: callq 0x7ffff621c640 0x00007ffff621e983 <+51>: mov $0xffffffffffffffff,%rax 0x00007ffff621e98a <+58>: add $0x18,%rsp 0x00007ffff621e98e <+62>: pop %rbx 0x00007ffff621e98f <+63>: pop %rbp 0x00007ffff621e990 <+64>: pop %r12 0x00007ffff621e992 <+66>: pop %r13 0x00007ffff621e994 <+68>: retq 0x00007ffff621e995 <+69>: nopl (%rax) 0x00007ffff621e998 <+72>: test %rdx,%rdx 0x00007ffff621e99b <+75>: js 0x7ffff621eafd <_ZN9QIODevice5writeEPKcx+429> 0x00007ffff621e9a1 <+81>: mov 0xd4(%rbx),%r12d 0x00007ffff621e9a8 <+88>: mov %rsi,%r13 0x00007ffff621e9ab <+91>: test %r12d,%r12d 0x00007ffff621e9ae <+94>: je 0x7ffff621ea88 <_ZN9QIODevice5writeEPKcx+312> 0x00007ffff621e9b4 <+100>: mov 0xa0(%rbx),%rsi 0x00007ffff621e9bb <+107>: cmp 0xa8(%rbx),%rsi 0x00007ffff621e9c2 <+114>: mov (%rdi),%rax 0x00007ffff621e9c5 <+117>: je 0x7ffff621e9f0 <_ZN9QIODevice5writeEPKcx+160> 0x00007ffff621e9c7 <+119>: cmp $0x1,%r12d 0x00007ffff621e9cb <+123>: je 0x7ffff621eaae <_ZN9QIODevice5writeEPKcx+350> 0x00007ffff621e9d1 <+129>: mov %rdx,0x8(%rsp) 0x00007ffff621e9d6 <+134>: mov %rbp,%rdi 0x00007ffff621e9d9 <+137>: callq *0x88(%rax) 0x00007ffff621e9df <+143>: test %al,%al 0x00007ffff621e9e1 <+145>: je 0x7ffff621eb1c <_ZN9QIODevice5writeEPKcx+460> 0x00007ffff621e9e7 <+151>: mov 0x0(%rbp),%rax 0x00007ffff621e9eb <+155>: mov 0x8(%rsp),%rdx 0x00007ffff621e9f0 <+160>: mov %r13,%rsi 0x00007ffff621e9f3 <+163>: mov %rbp,%rdi 0x00007ffff621e9f6 <+166>: callq *0xd8(%rax) 0x00007ffff621e9fc <+172>: cmp $0x1,%r12d 0x00007ffff621ea00 <+176>: je 0x7ffff621e98a <_ZN9QIODevice5writeEPKcx+58> 0x00007ffff621ea02 <+178>: test %rax,%rax 0x00007ffff621ea05 <+181>: jle 0x7ffff621e98a <_ZN9QIODevice5writeEPKcx+58> 0x00007ffff621ea07 <+183>: mov %rax,0x8(%rsp) 0x00007ffff621ea0c <+188>: mov 0x90(%rbx),%rdi 0x00007ffff621ea13 <+195>: movq 0x8(%rsp),%xmm0 0x00007ffff621ea19 <+201>: punpcklqdq %xmm0,%xmm0 0x00007ffff621ea1d <+205>: movdqu 0xa0(%rbx),%xmm1 0x00007ffff621ea25 <+213>: test %rdi,%rdi 0x00007ffff621ea28 <+216>: paddq %xmm1,%xmm0 0x00007ffff621ea2c <+220>: movups %xmm0,0xa0(%rbx) 0x00007ffff621ea33 <+227>: je 0x7ffff621e98a <_ZN9QIODevice5writeEPKcx+58> 0x00007ffff621ea39 <+233>: mov %rax,%rsi 0x00007ffff621ea3c <+236>: cmp %rax,0x18(%rdi) 0x00007ffff621ea40 <+240>: cmovle 0x18(%rdi),%rsi 0x00007ffff621ea45 <+245>: callq 0x7ffff618d520 <_ZN11QRingBuffer4freeEx> 0x00007ffff621ea4a <+250>: mov 0x8(%rsp),%rax 0x00007ffff621ea4f <+255>: add $0x18,%rsp 0x00007ffff621ea53 <+259>: pop %rbx 0x00007ffff621ea54 <+260>: pop %rbp 0x00007ffff621ea55 <+261>: pop %r12 0x00007ffff621ea57 <+263>: pop %r13 0x00007ffff621ea59 <+265>: retq 0x00007ffff621ea5a <+266>: nopw 0x0(%rax,%rax,1) 0x00007ffff621ea60 <+272>: lea 0x271e38(%rip),%rdx # 0x7ffff649089f 0x00007ffff621ea67 <+279>: lea 0x271eaa(%rip),%rsi # 0x7ffff6490918 0x00007ffff621ea6e <+286>: callq 0x7ffff621c640 0x00007ffff621ea73 <+291>: add $0x18,%rsp 0x00007ffff621ea77 <+295>: mov $0xffffffffffffffff,%rax 0x00007ffff621ea7e <+302>: pop %rbx 0x00007ffff621ea7f <+303>: pop %rbp 0x00007ffff621ea80 <+304>: pop %r12 0x00007ffff621ea82 <+306>: pop %r13 0x00007ffff621ea84 <+308>: retq 0x00007ffff621ea85 <+309>: nopl (%rax) 0x00007ffff621ea88 <+312>: mov 0x8(%rbx),%rdi 0x00007ffff621ea8c <+316>: mov %rdx,0x8(%rsp) 0x00007ffff621ea91 <+321>: mov (%rdi),%rax 0x00007ffff621ea94 <+324>: callq *0x60(%rax) 0x00007ffff621ea97 <+327>: test %al,%al 0x00007ffff621ea99 <+329>: mov 0x8(%rsp),%rdx 0x00007ffff621ea9e <+334>: je 0x7ffff621ead0 <_ZN9QIODevice5writeEPKcx+384> 0x00007ffff621eaa0 <+336>: mov 0x0(%rbp),%rax 0x00007ffff621eaa4 <+340>: movl $0x1,0xd4(%rbx) 0x00007ffff621eaae <+350>: mov 0xd8(%rax),%rax 0x00007ffff621eab5 <+357>: add $0x18,%rsp 0x00007ffff621eab9 <+361>: mov %r13,%rsi 0x00007ffff621eabc <+364>: pop %rbx 0x00007ffff621eabd <+365>: mov %rbp,%rdi 0x00007ffff621eac0 <+368>: pop %rbp 0x00007ffff621eac1 <+369>: pop %r12 0x00007ffff621eac3 <+371>: pop %r13 0x00007ffff621eac5 <+373>: jmpq *%rax 0x00007ffff621eac7 <+375>: nopw 0x0(%rax,%rax,1) 0x00007ffff621ead0 <+384>: mov 0xa0(%rbx),%rsi 0x00007ffff621ead7 <+391>: cmp %rsi,0xa8(%rbx) 0x00007ffff621eade <+398>: mov $0x2,%r12d 0x00007ffff621eae4 <+404>: movl $0x2,0xd4(%rbx) 0x00007ffff621eaee <+414>: mov 0x0(%rbp),%rax 0x00007ffff621eaf2 <+418>: jne 0x7ffff621e9d1 <_ZN9QIODevice5writeEPKcx+129> 0x00007ffff621eaf8 <+424>: jmpq 0x7ffff621e9f0 <_ZN9QIODevice5writeEPKcx+160> 0x00007ffff621eafd <+429>: lea 0x271d83(%rip),%rdx # 0x7ffff6490887 0x00007ffff621eb04 <+436>: lea 0x271e0d(%rip),%rsi # 0x7ffff6490918 0x00007ffff621eb0b <+443>: callq 0x7ffff621c640 0x00007ffff621eb10 <+448>: mov $0xffffffffffffffff,%rax 0x00007ffff621eb17 <+455>: jmpq 0x7ffff621e98a <_ZN9QIODevice5writeEPKcx+58> 0x00007ffff621eb1c <+460>: mov $0xffffffffffffffff,%rax 0x00007ffff621eb23 <+467>: jmpq 0x7ffff621e98a <_ZN9QIODevice5writeEPKcx+58> End of assembler dump. ```