tst_qquickimage::nullPixmapPaint fails on qemu

 QDEBUG : tst_qquickimage::nullPixmapPaint() [     0.205 D] qt.scenegraph.general contextFactory - Loading backend "software"
 QDEBUG : tst_qquickimage::nullPixmapPaint() [     2.527 D] qt.quick.focus QQuickWindowPrivate::setFocusInScope - QQuickWindowPrivate::setFocusInScope():
 QDEBUG : tst_qquickimage::nullPixmapPaint() [     2.528 D] qt.quick.focus QQuickWindowPrivate::setFocusInScope -     scope: QObject(0x0)
 QDEBUG : tst_qquickimage::nullPixmapPaint() [     2.530 D] qt.quick.focus QQuickWindowPrivate::setFocusInScope -     item: QQuickRootItem(0x4f5310)
 QDEBUG : tst_qquickimage::nullPixmapPaint() [     2.531 D] qt.quick.focus QQuickWindowPrivate::setFocusInScope -     activeFocusItem: QObject(0x0)
 QDEBUG : tst_qquickimage::nullPixmapPaint() [     2.569 D] qt.scenegraph.softwarecontext.abstractrenderer QSGAbstractSoftwareRenderer::nodeAdded - nodeAdded 0x4ce900
 QDEBUG : tst_qquickimage::nullPixmapPaint() [     2.573 D] qt.quick.dirty QQuickWindowPrivate::updateDirtyNodes - QQuickWindowPrivate::updateDirtyNodes():
 QDEBUG : tst_qquickimage::nullPixmapPaint() [     2.579 D] qt.quick.dirty QQuickWindowPrivate::updateDirtyNodes -    QSGNode: QQuickRootItem(0x4f5310, parent=0x0, geometry=0,0 10x10) Size|ChildrenChanged
 QDEBUG : tst_qquickimage::nullPixmapPaint() [     2.580 D] qt.scenegraph.softwarecontext.abstractrenderer QSGAbstractSoftwareRenderer::nodeAdded - nodeAdded 0x548120
 QDEBUG : tst_qquickimage::nullPixmapPaint() [     2.583 D] qt.quick.dirty QQuickWindowPrivate::updateDirtyNodes -    QSGNode: QQuickImage(0x4cd860, parent=0x4f5310, geometry=0,0 10x10) Size|Content|ParentChanged|Window
 QDEBUG : tst_qquickimage::nullPixmapPaint() [     2.583 D] qt.scenegraph.softwarecontext.abstractrenderer QSGAbstractSoftwareRenderer::nodeMatrixUpdated - nodeMaterialUpdated
 QDEBUG : tst_qquickimage::nullPixmapPaint() [     2.594 D] qt.scenegraph.softwarecontext.renderable QSGSoftwareRenderableNode::addDirtyRegion - addDirtyRegion:  QRegion(0,0 10x10) old dirtyRegion:  QRegion(0,0 10x10) new dirtyRegion:  QRegion(0,0 10x10)
 QWARN  : tst_qquickimage::nullPixmapPaint() [     2.726 W] default QBackingStore::endPaint - QBackingStore::endPaint() called with active painter on backingstore paint device
 QDEBUG : tst_qquickimage::nullPixmapPaint() [     2.727 D] qt.scenegraph.softwarecontext.renderer QSGSoftwareRenderer::render - render QRegion(0,0 10x10) 0 5 129
 QDEBUG : tst_qquickimage::nullPixmapPaint() [     2.728 D] qt.scenegraph.time.renderer QSGRenderer::renderScene - time in renderer: total=140ms, preprocess=0, updates=0, binding=0, rendering=139
 QDEBUG : tst_qquickimage::nullPixmapPaint() [     2.733 D] qt.scenegraph.time.renderloop QSGSoftwareRenderLoop::renderWindow - Frame rendered with 'software' renderloop in 179ms, polish=0, sync=32, render=145, swap=0, frameDelta=1
 QDEBUG : tst_qquickimage::nullPixmapPaint() [     2.734 D] qt.quick.dirty QQuickWindowPrivate::updateDirtyNodes - QQuickWindowPrivate::updateDirtyNodes():
 QWARN  : tst_qquickimage::nullPixmapPaint() [     2.735 W] default QBackingStore::endPaint - QBackingStore::endPaint() called with active painter on backingstore paint device
 QDEBUG : tst_qquickimage::nullPixmapPaint() [     2.735 D] qt.scenegraph.softwarecontext.renderer QSGSoftwareRenderer::render - render QRegion(null) 0 0 0
 QDEBUG : tst_qquickimage::nullPixmapPaint() [     2.736 D] qt.scenegraph.time.renderer QSGRenderer::renderScene - time in renderer: total=1ms, preprocess=0, updates=0, binding=0, rendering=1
 QDEBUG : tst_qquickimage::nullPixmapPaint() [     2.736 D] qt.scenegraph.time.renderloop QSGSoftwareRenderLoop::renderWindow - Frame rendered with 'software' renderloop in 1ms, polish=0, sync=0, render=1, swap=0, frameDelta=3
 FAIL!  : tst_qquickimage::nullPixmapPaint() 'messageHandler.messages().size() == 0' returned FALSE. (QQuickWindowPrivate::updateDirtyNodes():
    QSGNode: QQuickImage(0x4cd860, parent=0x4f5310, geometry=0,0 10x10) Content
 QBackingStore::endPaint() called with active painter on backingstore paint device
 render QRegion(null) 0 0 0
 time in renderer: total=0ms, preprocess=0, updates=0, binding=0, rendering=0
 Frame rendered with 'software' renderloop in 2ms, polish=0, sync=0, render=0, swap=0, frameDelta=25)
    Loc: [tst_qquickimage.cpp(696)]
 QDEBUG : tst_qquickimage::nullPixmapPaint() [     2.777 D] qt.scenegraph.softwarecontext.abstractrenderer QSGAbstractSoftwareRenderer::nodeRemoved - nodeRemoved 0x548120
 QDEBUG : tst_qquickimage::nullPixmapPaint() [     2.778 D] qt.scenegraph.softwarecontext.abstractrenderer QSGAbstractSoftwareRenderer::nodeRemoved - nodeRemoved 0x4cf4b0
 QDEBUG : tst_qquickimage::nullPixmapPaint() [     2.783 D] qt.scenegraph.softwarecontext.abstractrenderer QSGAbstractSoftwareRenderer::nodeRemoved - nodeRemoved 0x4ce900