On Sun, Mar 24, 2019 at 02:36:00PM +0300, Dmitry Shachnev wrote:
> This bug still happens with the latest versions of llvm, mesa and Qt
> in Buster.

Today I found another occurrence of this bug — it makes pyside2 FTBFS in
unstable.

And here is a simple way to reproduce this bug on a mips64el machine
(the needed test.qml file is attached).

1) Install packages:
qml qml-module-qtqml qml-module-qtquick2 qml-module-qtquick-window2 xauth xvfb

2) xvfb-run -a qml --verbose ./test.qml
Output:
qml: Qt 5.14.2 (mips64-little_endian-lp64-n64-hardfloat shared (dynamic) 
release build; by GCC 10.2.0)
qml: Using built-in configuration: default.qml
qml: loading file:///home/mitya57/test.qml
Vendor  : Mesa/X.org
Renderer: llvmpipe (LLVM 11.0.0, 128 bits)
Version : 3.1 Mesa 20.2.1
Language: 1.40
Segmentation fault

3) QSG_NO_DEPTH_BUFFER=1 xvfb-run -a qml --verbose ./test.qml
Same output, but does not segfault and keeps running.

--
Dmitry Shachnev
import QtQuick 2.0

Item {
    width: 300
    height: 200

    Rectangle {
        anchors.fill: parent
    }
}

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