https://bugs.kde.org/show_bug.cgi?id=361236

Bernhard Übelacker <bernha...@mailbox.org> changed:

           What    |Removed                     |Added
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                 CC|                            |bernha...@mailbox.org

--- Comment #58 from Bernhard Übelacker <bernha...@mailbox.org> ---
I received the same crash in current Debian Stretch.
(qtbase5 5.6.1, kwin-x11, 5.8.2, was a dist-upgrade from Jessie)

For me it is reproducible on every switch from Breeze to Plastik
window decorations.

apt-get install kwin-x11-dbgsym qtbase5-dbg kwin-common-dbgsym
qtdeclarative5-dbg qtdeclarative5-dev

(gdb) up
#7  QQmlBinding::write (this=this@entry=0x55a99a0, core=..., result=...,
isUndefined=<optimized out>, flags=...) at qml/qqmlbinding.cpp:257
257                 if (const QV4::QQmlValueTypeWrapper *vtw = result.as<const
QV4::QQmlValueTypeWrapper>()) {

(gdb) print core.propType
$7 = 39
/* seems to be /* QMetaType::QObjectStar */

(gdb) down
#6  QV4::Value::as<QV4::QQmlValueTypeWrapper const> (this=0x7fbc2d3bd320) at
../../include/QtQml/5.6.1/QtQml/private/../../../../../src/qml/jsruntime/qv4value_p.h:351
351                 vt = vt->parent;

(gdb) print vt
$11 = (const QV4::VTable *) 0x7fbc4810
(gdb) print *vt
Cannot access memory at address 0x7fbc4810

Is there anything I can supply (other than a small test case)?

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