Bug 417699 - Kwin crashes on emoji in titlebar
Summary: Kwin crashes on emoji in titlebar
Status: RESOLVED FIXED
Alias: None
Product: kwin
Classification: Plasma
Component: aurorae (show other bugs)
Version: 5.18.0
Platform: Arch Linux Linux
: NOR crash
Target Milestone: ---
Assignee: KWin default assignee
URL:
Keywords:
: 418075 (view as bug list)
Depends on:
Blocks:
 
Reported: 2020-02-15 11:51 UTC by der_fenix
Modified: 2020-02-24 05:07 UTC (History)
5 users (show)

See Also:
Latest Commit: https://commits.kde.org/kwin/39798bffb1398d6b75a067ff5552a63ea6b182f7
Version Fixed In: 5.18.2

Attachments
kwin_x11 strace log (2.27 MB, text/plain)
2020-02-18 20:06 UTC, der_fenix 		Details
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Description der_fenix 2020-02-15 11:51:26 UTC 
Probably chromium-related

STEPS TO REPRODUCE
1. Open chromium 
2. Open any site which have an emoji in its title

OBSERVED RESULT
Kwin crashes

SOFTWARE/OS VERSIONS
Operating System: Arch Linux 
KDE Plasma Version: 5.18.0
KDE Frameworks Version: 5.67.0
Qt Version: 5.14.1
Kernel Version: 5.5.3-arch1-1
OS Type: 64-bit
Processors: 16 × AMD Ryzen 7 1700 Eight-Core Processor
Memory: 31.4 GiB of RAM


ADDITIONAL INFORMATION

LC_ALL=C kwin_x11 --replace
Icon theme "mate-icon-theme" not found.
Module 'org.kde.kwin.decoration' does not contain a module identifier directive - it cannot be protected from external registrations.
aurorae: Couldn't find QML Decoration  "__aurorae__svg__Simply_Circles"
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
aurorae: Couldn't find QML Decoration  "__aurorae__svg__Simply_Circles"
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
aurorae: Couldn't find QML Decoration  "__aurorae__svg__Simply_Circles"
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
aurorae: Couldn't find QML Decoration  "__aurorae__svg__Simply_Circles"
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 2156, resource id: 136314966, major code: 18 (ChangeProperty), minor code: 0
OpenGL vendor string:                   X.Org
OpenGL renderer string:                 Radeon RX Vega (VEGA10, DRM 3.36.0, 5.5.3-arch1-1, LLVM 9.0.1)
OpenGL version string:                  4.5 (Compatibility Profile) Mesa 19.3.4
OpenGL shading language version string: 4.50
Driver:                                 RadeonSI
GPU class:                              Vega
OpenGL version:                         4.5
GLSL version:                           4.50
Mesa version:                           19.3.4
X server version:                       1.20.7
Linux kernel version:                   5.5.3
Requires strict binding:                yes
GLSL shaders:                           yes
Texture NPOT support:                   yes
Virtual Machine:                        no
qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 2685, resource id: 136314970, major code: 3 (GetWindowAttributes), minor code: 0
qt.qpa.xcb: QXcbConnection: XCB error: 9 (BadDrawable), sequence: 2686, resource id: 136314970, major code: 14 (GetGeometry), minor code: 0
qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 4190, resource id: 136315082, major code: 2 (ChangeWindowAttributes), minor code: 0
malloc(): invalid size (unsorted)
Application::crashHandler() called with signal 6; recent crashes: 1
Comment 1 der_fenix 2020-02-15 11:54:09 UTC 
Crashing example: https://www.youtube.com/results?search_query=%F0%9F%98%80
Comment 2 deadite66 2020-02-15 20:45:59 UTC 
Seeing this too, trying to use Discord always triggers this for me.
Comment 3 deadite66 2020-02-15 20:51:08 UTC 
[lee@Plasma ~]$ LC_ALL=C kwin_x11 --replace
qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 178, resource id: 96468999, major code: 20 (GetProperty), minor code: 0
qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 179, resource id: 96468999, major code: 20 (GetProperty), minor code: 0
Module 'org.kde.kwin.decoration' does not contain a module identifier directive - it cannot be protected from external registrations.
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 2979, resource id: 31457409, major code: 3 (GetWindowAttributes), minor code: 0
qt.qpa.xcb: QXcbConnection: XCB error: 9 (BadDrawable), sequence: 2980, resource id: 31457409, major code: 14 (GetGeometry), minor code: 0
qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 10895, resource id: 33554940, major code: 18 (ChangeProperty), minor code: 0
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 15152, resource id: 157286401, major code: 15 (QueryTree), minor code: 0
malloc(): invalid size (unsorted)
Application::crashHandler() called with signal 6; recent crashes: 1
Comment 4 Nate Graham 2020-02-16 21:10:59 UTC 
Does this happen for any other windows too? For example in Kate, if you open a file with an emoji in its name, does KWin still crash? Or is it on;y reproducible in Chromium or Electron apps?
Comment 5 der_fenix 2020-02-16 21:14:15 UTC 
Just checked: created file named with emoji and open it in kate - kwin crashed
Comment 6 deadite66 2020-02-16 21:33:54 UTC 
if its at all relevent i'm also on Arch linux and a Vega gpu.
Comment 7 Nate Graham 2020-02-16 22:01:53 UTC 
Thanks. Cannot reproduce, BTW.
Comment 8 David Edmundson 2020-02-16 23:01:59 UTC 
Crashes should have a backtrace
Comment 9 der_fenix 2020-02-16 23:07:15 UTC 
I know they should, but haven't actually. 

All we have is:
  malloc(): invalid size (unsorted)
  Application::crashHandler() called with signal 6; recent crashes: 1

May be arch packages have no debug info or something else is missing, but even drkonqi was sleeping.
Comment 10 deadite66 2020-02-17 06:33:40 UTC 
i don't see drkongi during the crash, if i log out and back in then i do sometimes see this from it.

Application: kdeinit5 (kdeinit5), signal: Aborted
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[KCrash Handler]
#6  0x00007f29150f6ce5 in raise () from /usr/lib/libc.so.6
#7  0x00007f29150e0857 in abort () from /usr/lib/libc.so.6
#8  0x00007f291530f96c in QMessageLogger::fatal(char const*, ...) const () from /usr/lib/libQt5Core.so.5
#9  0x00007f291174206d in KIO::SlaveBase::waitForAnswer(int, int, QByteArray&, int*) () from /usr/lib/libKF5KIOCore.so.5
#10 0x00007f29117431ae in KIO::SlaveBase::canResume(unsigned long long) () from /usr/lib/libKF5KIOCore.so.5
#11 0x00007f29160ccdd6 in ?? () from /usr/lib/qt/plugins/kf5/kio/file.so
#12 0x00007f2911748510 in KIO::SlaveBase::dispatch(int, QByteArray const&) () from /usr/lib/libKF5KIOCore.so.5
#13 0x00007f2911748c26 in KIO::SlaveBase::dispatchLoop() () from /usr/lib/libKF5KIOCore.so.5
#14 0x00007f29160cb394 in kdemain () from /usr/lib/qt/plugins/kf5/kio/file.so
#15 0x0000558a2a003b9c in ?? ()
#16 0x0000558a2a00505a in ?? ()
#17 0x0000558a2a0059ce in ?? ()
#18 0x0000558a2a000b54 in ?? ()
#19 0x00007f29150e2023 in __libc_start_main () from /usr/lib/libc.so.6
#20 0x0000558a2a00176e in ?? ()
[Inferior 1 (process 294263) detached]
Comment 11 deadite66 2020-02-17 17:21:10 UTC 
GNU gdb (GDB) 9.1
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License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Type "show copying" and "show warranty" for details.
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Type "show configuration" for configuration details.
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Attaching to process 113123
[New LWP 113124]
[New LWP 113125]
[New LWP 113126]
[New LWP 113127]
[New LWP 113128]
[New LWP 113129]
[New LWP 113130]
[New LWP 113131]
[New LWP 113132]
[New LWP 113133]
[New LWP 113134]
[New LWP 113135]
[New LWP 113136]
[New LWP 113137]
[New LWP 113138]
[New LWP 113139]
[New LWP 113140]
[New LWP 113141]
[New LWP 113142]
[New LWP 113143]
[New LWP 113144]
[New LWP 113145]
[New LWP 113146]
[New LWP 113147]
[New LWP 113148]
[New LWP 113149]
[New LWP 113150]
[New LWP 113151]
[New LWP 113152]
[New LWP 113153]
[New LWP 113154]
[New LWP 113155]
[New LWP 113158]
[New LWP 113159]
[New LWP 113160]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib/libthread_db.so.1".
0x00007f6bcc6c9cf5 in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
(gdb) coin[K[Kntinue
Continuing.
[New Thread 0x7f6a98dff700 (LWP 116694)]

Thread 1 "kwin_x11" received signal SIGABRT, Aborted.
0x00007f6bcecdfce5 in raise () from /usr/lib/libc.so.6
(gdb) thread 1
[Switching to thread 1 (Thread 0x7f6bc71350c0 (LWP 113123))]
#0  0x00007f6bcecdfce5 in raise () from /usr/lib/libc.so.6
(gdb) bt
#0  0x00007f6bcecdfce5 in raise () at /usr/lib/libc.so.6
#1  0x00007f6bcecc9857 in abort () at /usr/lib/libc.so.6
#2  0x00007f6bced232b0 in __libc_message () at /usr/lib/libc.so.6
#3  0x00007f6bced2a74a in  () at /usr/lib/libc.so.6
#4  0x00007f6bced2d6b4 in _int_malloc () at /usr/lib/libc.so.6
#5  0x00007f6bced2efb9 in malloc () at /usr/lib/libc.so.6
#6  0x00007f6bcdae904b in QImageData::create(QSize const&, QImage::Format) () at /usr/lib/libQt5Gui.so.5
#7  0x00007f6bcdae918d in QImage::QImage(QSize const&, QImage::Format) () at /usr/lib/libQt5Gui.so.5
#8  0x00007f6bcdae91ca in QImage::QImage(int, int, QImage::Format) () at /usr/lib/libQt5Gui.so.5
#9  0x00007f6bcdaea13c in QImage::copy(QRect const&) const () at /usr/lib/libQt5Gui.so.5
#10 0x00007f6bcdaea6a5 in QImage::detach() () at /usr/lib/libQt5Gui.so.5
#11 0x00007f6bcdaebe7b in QImage::setColor(int, unsigned int) () at /usr/lib/libQt5Gui.so.5
#12 0x00007f6bc6d5a968 in  () at /usr/lib/libQt5XcbQpa.so.5
#13 0x00007f6bcddb60de in QTextureGlyphCache::textureMapForGlyph(unsigned int, QFixed) const () at /usr/lib/libQt5Gui.so.5
#14 0x00007f6bcde46bfe in QOpenGLTextureGlyphCache::fillTexture(QTextureGlyphCache::Coord const&, unsigned int, QFixed) () at /usr/lib/libQt5Gui.so.5
#15 0x00007f6bcddb7dd5 in QTextureGlyphCache::fillInPendingGlyphs() () at /usr/lib/libQt5Gui.so.5
#16 0x00007f6bcc1566d1 in  () at /usr/lib/libQt5Quick.so.5
#17 0x00007f6bcc1522eb in  () at /usr/lib/libQt5Quick.so.5
#18 0x00007f6bcc2271ce in QQuickTextNode::addGlyphs(QPointF const&, QGlyphRun const&, QColor const&, QQuickText::TextStyle, QColor const&, QSGNode*) ()
    at /usr/lib/libQt5Quick.so.5
#19 0x00007f6bcc22c679 in  () at /usr/lib/libQt5Quick.so.5
#20 0x00007f6bcc228231 in QQuickTextNode::addTextLayout(QPointF const&, QTextLayout*, QColor const&, QQuickText::TextStyle, QColor const&, QColor const&, QColor const&, QColor const&, int, int, int, int) () at /usr/lib/libQt5Quick.so.5
#21 0x00007f6bcc226a5f in QQuickText::updatePaintNode(QSGNode*, QQuickItem::UpdatePaintNodeData*) () at /usr/lib/libQt5Quick.so.5
#22 0x00007f6bcc1cbd58 in QQuickWindowPrivate::updateDirtyNode(QQuickItem*) () at /usr/lib/libQt5Quick.so.5
#23 0x00007f6bcc1cc61c in QQuickWindowPrivate::updateDirtyNodes() () at /usr/lib/libQt5Quick.so.5
#24 0x00007f6bcc1cdd42 in QQuickWindowPrivate::syncSceneGraph() () at /usr/lib/libQt5Quick.so.5
#25 0x00007f6bcc29855a in QQuickRenderControl::sync() () at /usr/lib/libQt5Quick.so.5
#26 0x00007f6bcc501a19 in KWin::EffectQuickView::update() () at /usr/lib/libkwineffects.so.12
#27 0x00007f6bcd70f46e in  () at /usr/lib/libQt5Core.so.5
#28 0x00007f6bcd7131d8 in QTimer::timeout(QTimer::QPrivateSignal) () at /usr/lib/libQt5Core.so.5
#29 0x00007f6bcd707185 in QObject::event(QEvent*) () at /usr/lib/libQt5Core.so.5
#30 0x00007f6bce173362 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#31 0x00007f6bce17c819 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#32 0x00007f6bcd6d9962 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#33 0x00007f6bcd7313bd in QTimerInfoList::activateTimers() () at /usr/lib/libQt5Core.so.5
#34 0x00007f6bcd72f799 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#35 0x00007f6bc6cf7f5f in  () at /usr/lib/libQt5XcbQpa.so.5
#36 0x00007f6bcd6d84cc in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#37 0x00007f6bcd6e04d6 in QCoreApplication::exec() () at /usr/lib/libQt5Core.so.5
#38 0x00007f6bcee72379 in kdemain () at /usr/lib/libkdeinit5_kwin_x11.so
#39 0x00007f6bceccb023 in __libc_start_main () at /usr/lib/libc.so.6
#40 0x000055d1e3a4705e in _start ()
(gdb) thread 2
[Switching to thread 2 (Thread 0x7f6bc69d9700 (LWP 113124))]
#0  0x00007f6bced98abf in poll () from /usr/lib/libc.so.6
(gdb) bt
#0  0x00007f6bced98abf in poll () at /usr/lib/libc.so.6
#1  0x00007f6bcd416630 in  () at /usr/lib/libxcb.so.1
#2  0x00007f6bcd4182db in xcb_wait_for_event () at /usr/lib/libxcb.so.1
#3  0x00007f6bc6cf6b81 in  () at /usr/lib/libQt5XcbQpa.so.5
#4  0x00007f6bcd4fdfc6 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f6bcc6c346f in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f6bceda33d3 in clone () at /usr/lib/libc.so.6
(gdb) quit
A debugging session is active.

	Inferior 1 [process 113123] will be detached.

Quit anyway? (y or n) y
Detaching from program: /usr/bin/kwin_x11, process 113123
[Inferior 1 (process 113123) detached]
Comment 12 David Edmundson 2020-02-17 17:28:38 UTC 
Ooh thank you! 

We've had a bunch of crashes in aurorae without any sort of clue as to what was triggering it!

Can you tell me which window decoration you're using?
Comment 13 David Edmundson 2020-02-17 17:33:32 UTC 
and which font
Comment 14 deadite66 2020-02-17 17:55:11 UTC 
Decoration is Plastik
font is Segoe UI, fixed width font is Hack

clean backup user i made to test this is using Plastik and noto sans.

i tested it with both accounts, its Plastik causing this, tried and Breeze and Oxygen and Discord works without issue.
Comment 15 der_fenix 2020-02-17 18:07:33 UTC 
I'm using breeze decoration and Noto fonts for text, and noto-sans-emoji for emoji
Comment 16 deadite66 2020-02-17 18:20:00 UTC 
i have noto-sans-emoji installed too.
Comment 17 David Edmundson 2020-02-17 18:56:41 UTC 
>I'm using breeze decoration and Noto fonts for text, and noto-sans-emoji for emoji

If you use breeze your backtrace would be very different. Could you attach that please.
Comment 18 der_fenix 2020-02-18 20:06:26 UTC 
Created attachment 126141 [details]
kwin_x11 strace log

I have some troubles with gdm - it is freeze all gui or prints the same data as in my first comment. I make strace log, by starting kwin_x11 by strace when have already opened window with emoji, may be it will be usefull
Comment 19 deadite66 2020-02-18 20:28:46 UTC 
i followed this guide for debugging kwin_x11, the screen locks up until you type continue in gdb, so ran gdb in another tty.

https://community.kde.org/KWin/Debugging
Comment 20 der_fenix 2020-02-18 20:59:04 UTC 
Thanks, got it.

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Reading symbols from kwin_x11...
(No debugging symbols found in kwin_x11)
(gdb) run
Starting program: /usr/bin/kwin_x11 
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[New Thread 0x7fffefad6700 (LWP 82157)]
[New Thread 0x7fffef25b700 (LWP 82158)]
qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 178, resource id: 132120583, major code: 20 (GetProperty), minor code: 0
qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 179, resource id: 132120583, major code: 20 (GetProperty), minor code: 0
[New Thread 0x7fffeea5a700 (LWP 82159)]
[New Thread 0x7fffed5de700 (LWP 82161)]
Module 'org.kde.kwin.decoration' does not contain a module identifier directive - it cannot be protected from external registrations.
Icon theme "mate-icon-theme" not found.
aurorae: Couldn't find QML Decoration  "__aurorae__svg__Simply_Circles"
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
[New Thread 0x7fffddb62700 (LWP 82185)]
[New Thread 0x7fffdd220700 (LWP 82186)]
[New Thread 0x7fffdca1f700 (LWP 82187)]
[New Thread 0x7fffd31ba700 (LWP 82188)]
[New Thread 0x7fffd29b9700 (LWP 82189)]
[New Thread 0x7fffd21b8700 (LWP 82190)]
[New Thread 0x7fffd19b7700 (LWP 82191)]
[New Thread 0x7fffd11b6700 (LWP 82192)]
[New Thread 0x7fffd09b5700 (LWP 82193)]
[New Thread 0x7fffabfff700 (LWP 82194)]
[New Thread 0x7fffab7fe700 (LWP 82195)]
[New Thread 0x7fffaaffd700 (LWP 82196)]
[New Thread 0x7fffaa7fc700 (LWP 82197)]
[New Thread 0x7fffa9ffb700 (LWP 82198)]
[New Thread 0x7fffa97fa700 (LWP 82199)]
[New Thread 0x7fffa8ff9700 (LWP 82201)]
[New Thread 0x7fff8bfff700 (LWP 82202)]
[New Thread 0x7fff83fff700 (LWP 82203)]
[New Thread 0x7fff8b7fe700 (LWP 82204)]
[New Thread 0x7fff8affd700 (LWP 82205)]
[New Thread 0x7fff8a7fc700 (LWP 82206)]
[New Thread 0x7fff89ffb700 (LWP 82207)]
[New Thread 0x7fff897fa700 (LWP 82210)]
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
aurorae: Couldn't find QML Decoration  "__aurorae__svg__Simply_Circles"
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
[New Thread 0x7fff88ff9700 (LWP 82211)]
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
aurorae: Couldn't find QML Decoration  "__aurorae__svg__Simply_Circles"
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
[New Thread 0x7fff837fe700 (LWP 82213)]
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
aurorae: Couldn't find QML Decoration  "__aurorae__svg__Simply_Circles"
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
[New Thread 0x7fff82ffd700 (LWP 82217)]
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
aurorae: Couldn't find QML Decoration  "__aurorae__svg__Simply_Circles"
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
[New Thread 0x7fff827fc700 (LWP 82218)]
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
aurorae: Couldn't find QML Decoration  "__aurorae__svg__Simply_Circles"
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
[New Thread 0x7fff81ffb700 (LWP 82219)]
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
aurorae: Couldn't find QML Decoration  "__aurorae__svg__Simply_Circles"
file:///usr/share/kwin/decorations/kwin4_decoration_qml_plastik/contents/ui/main.qml:92: TypeError: Cannot read property 'borderSize' of null
file:///usr/lib/qt/qml/org/kde/kwin/decoration/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
[New Thread 0x7fff817fa700 (LWP 82220)]
[New Thread 0x7fff80ff9700 (LWP 82221)]
qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 2571, resource id: 140509188, major code: 18 (ChangeProperty), minor code: 0
qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 2769, resource id: 140509189, major code: 18 (ChangeProperty), minor code: 0
qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 2773, resource id: 140509188, major code: 18 (ChangeProperty), minor code: 0
qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 3022, resource id: 140509189, major code: 18 (ChangeProperty), minor code: 0
[New Thread 0x7fff4bfff700 (LWP 82222)]
[New Thread 0x7fff4b7fe700 (LWP 82223)]
[Thread 0x7fff4b7fe700 (LWP 82223) exited]
[New Thread 0x7fff4b7fe700 (LWP 82224)]
OpenGL vendor string:                   X.Org
OpenGL renderer string:                 Radeon RX Vega (VEGA10, DRM 3.36.0, 5.5.4-arch1-1, LLVM 9.0.1)
OpenGL version string:                  4.5 (Compatibility Profile) Mesa 19.3.4
OpenGL shading language version string: 4.50
Driver:                                 RadeonSI
GPU class:                              Vega
OpenGL version:                         4.5
GLSL version:                           4.50
Mesa version:                           19.3.4
X server version:                       1.20.7
Linux kernel version:                   5.5.4
Requires strict binding:                yes
GLSL shaders:                           yes
Texture NPOT support:                   yes
Virtual Machine:                        no
[New Thread 0x7fff4affd700 (LWP 82225)]
[New Thread 0x7fff4a7fc700 (LWP 82227)]
malloc(): invalid size (unsorted)

Thread 1 "kwin_x11" received signal SIGABRT, Aborted.
0x00007ffff7ddece5 in raise () from /usr/lib/libc.so.6
(gdb) quit
A debugging session is active.

	Inferior 1 [process 82152] will be killed.

Quit anyway? (y or n) y
Comment 21 David Edmundson 2020-02-18 21:16:01 UTC 
der_fenix, that log proves you're not using Breeze.

Which is good news for me, as it puts us back as having one bug.
Comment 22 der_fenix 2020-02-18 21:18:13 UTC 
But I can provide screenshot of systemsettings window with breeze selected as window decorator :)
Comment 23 David Edmundson 2020-02-18 21:29:17 UTC 
Then there's another independent bug with the systemsettings UI.
Comment 24 der_fenix 2020-02-18 21:33:47 UTC 
Hmm, got it. That's why I have no shadows... :)
Comment 25 David Edmundson 2020-02-18 22:30:43 UTC 
Minimal crashing example:

```
import QtQuick 2.5

Text {
    textFormat: Text.PlainText
    color: "red"
    text: "results?search_query=😀"
    font.family: "Noto Color Emoji"
    style: Text.Raised // This line causes the crash
}
```

Will write up a Qt bug report with this and submit a hack for plastik disabling the styling.
Comment 26 David Edmundson 2020-02-19 08:27:44 UTC 
Git commit 39798bffb1398d6b75a067ff5552a63ea6b182f7 by David Edmundson.
Committed on 19/02/2020 at 08:27.
Pushed by davidedmundson into branch 'Plasma/5.18'.

[plastik] Disable problematic text hints

Summary:
Use of "style: Text.Raised" combined with UTF-8 emoji characters
currently crashes deep in font rendering code.

A report has been submitted upstream:
https://bugreports.qt.io/browse/QTBUG-82311

Given this crash is surprisingly common, this patch removes the text
shadow. I normally would be against removing features, but this was a
subtle effect anyway and frankly just made things look blurry. I doubt
it'll be missed.
Related: bug 413179

Test Plan:
Made unit test for the crash in qmlscene
Fixed the issue there

Reviewers: #kwin, zzag

Reviewed By: #kwin, zzag

Subscribers: kwin

Tags: #kwin

Differential Revision: https://phabricator.kde.org/D27488

M  +0    -3    plugins/kdecorations/aurorae/themes/plastik/package/contents/config/main.xml
M  +0    -11   plugins/kdecorations/aurorae/themes/plastik/package/contents/ui/config.ui
M  +0    -4    plugins/kdecorations/aurorae/themes/plastik/package/contents/ui/main.qml

https://commits.kde.org/kwin/39798bffb1398d6b75a067ff5552a63ea6b182f7
Comment 27 Nate Graham 2020-02-24 05:07:30 UTC 
*** Bug 418075 has been marked as a duplicate of this bug. ***