QProgressBar with lineargradient crashes on solaris sparc

#include <QApplication>
#include <QProgressBar>

#include <iostream>

using namespace std;

int main(int argc, char *argv[])
{
	QApplication app(argc, argv);
	QProgressBar *bar = new QProgressBar();
	bar->setRange(0,100);
	//COMMENT OUT THIS LINE AND THE PROGRAM WILL WORK CORRECTLY
	//bar->setStyleSheet("QProgressBar:horizontal {border: 1px solid gray; border-radius: 3px; background: #333333; padding: 1px; height: 10px; text-align: left;} QProgressBar::chunk:horizontal {background: qlineargradient(x1:0, y1:1, x2:1, y2:1, stop:0 green, stop:1 white);}");
	bar->setValue(0);
	bar->show(); 
	long count = 0;
	int i=0;
	int n = 0;
	while(count < 100000000) {
		if ((n = count%1000000) == 0) { 
			cout << "Count = " << count << endl;
			bar->setValue(i++);
			QApplication::processEvents();
		}
		++count;
	}
	return app.exec();
}

The above snippet works on Windows 7, 64-bit CentOS 5.8 and Solaris x86 just not on a SPARC machine. The application becomes unresponsive.

^C
Program received signal SIGINT, Interrupt.
0xfe7ca2a8 in qt_isExtendedRadialGradient ()
from /home/dementt/dev/MIReflector/Source/lib/libQtGui.so.4
(gdb) bt
#0 0xfe7ca2a8 in qt_isExtendedRadialGradient ()
from /home/dementt/dev/MIReflector/Source/lib/libQtGui.so.4

#1 0xfe7cd36c in QBrush::isOpaque ()
from /home/dementt/dev/MIReflector/Source/lib/libQtGui.so.4

#2 0xfe897e08 in QSpanData::setup ()
from /home/dementt/dev/MIReflector/Source/lib/libQtGui.so.4

#3 0xfe898c00 in QRasterPaintEngine::updateBrush ()
from /home/dementt/dev/MIReflector/Source/lib/libQtGui.so.4

#4 0xfe899120 in QRasterPaintEngine::fill ()
from /home/dementt/dev/MIReflector/Source/lib/libQtGui.so.4

#5 0xfe7e8f2c in QEmulationPaintEngine::fill ()
from /home/dementt/dev/MIReflector/Source/lib/libQtGui.so.4

#6 0xfe7f80e4 in QPaintEngineEx::draw ()
from /home/dementt/dev/MIReflector/Source/lib/libQtGui.so.4

#7 0xfe7f83b4 in QPaintEngineEx::drawRects ()
from /home/dementt/dev/MIReflector/Source/lib/libQtGui.so.4

#8 0xfe809928 in QPainter::drawRects ()
from /home/dementt/dev/MIReflector/Source/lib/libQtGui.so.4

#9 0xfe809d2c in QPainter::fillRect ()
from /home/dementt/dev/MIReflector/Source/lib/libQtGui.so.4

#10 0xfea1ded0 in QRenderRule::drawBackground ()
from /home/dementt/dev/MIReflector/Source/lib/libQtGui.so.4

#11 0xfea1e210 in QRenderRule::drawFrame ()
from /home/dementt/dev/MIReflector/Source/lib/libQtGui.so.4

#12 0xfea1e268 in QRenderRule::drawRule ()
from /home/dementt/dev/MIReflector/Source/lib/libQtGui.so.4

#13 0xfea34b00 in QStyleSheetStyle::drawControl ()
from /home/dementt/dev/MIReflector/Source/lib/libQtGui.so.4

#14 0xfea091d4 in QCommonStyle::drawControl ()
from /home/dementt/dev/MIReflector/Source/lib/libQtGui.so.4

#15 0xfea88df8 in QWindowsStyle::drawControl ()
from /home/dementt/dev/MIReflector/Source/lib/libQtGui.so.4

#16 0xfea2e994 in QStyleSheetStyle::drawControl ()
from /home/dementt/dev/MIReflector/Source/lib/libQtGui.so.4

#17 0xfeb3c75c in QProgressBar::paintEvent ()
from /home/dementt/dev/MIReflector/Source/lib/libQtGui.so.4

#18 0xfe6f6b2c in QWidget::event ()
from /home/dementt/dev/MIReflector/Source/lib/libQtGui.so.4

#19 0xfeb3c518 in QProgressBar::event ()
from /home/dementt/dev/MIReflector/Source/lib/libQtGui.so.4

#20 0xfe6a06d8 in QApplicationPrivate::notify_helper ()
from /home/dementt/dev/MIReflector/Source/lib/libQtGui.so.4

#21 0xfe6a9a84 in QApplication::notify ()
from /home/dementt/dev/MIReflector/Source/lib/libQtGui.so.4

#22 0xfdde899c in QCoreApplication::notifyInternal ()
from /home/dementt/dev/MIReflector/Source/lib/libQtCore.so.4

#23 0xfe6f3e4c in QWidgetPrivate::drawWidget ()
from /home/dementt/dev/MIReflector/Source/lib/libQtGui.so.4

#24 0xfe6f46b0 in QWidgetPrivate::paintSiblingsRecursive ()
from /home/dementt/dev/MIReflector/Source/lib/libQtGui.so.4

#25 0xfe6f4578 in QWidgetPrivate::paintSiblingsRecursive ()
from /home/dementt/dev/MIReflector/Source/lib/libQtGui.so.4

#26 0xfe6f4578 in QWidgetPrivate::paintSiblingsRecursive ()
from /home/dementt/dev/MIReflector/Source/lib/libQtGui.so.4

#27 0xfe6f4578 in QWidgetPrivate::paintSiblingsRecursive ()
from /home/dementt/dev/MIReflector/Source/lib/libQtGui.so.4

#28 0xfe6f4578 in QWidgetPrivate::paintSiblingsRecursive ()
from /home/dementt/dev/MIReflector/Source/lib/libQtGui.so.4

#29 0xfe6f38d0 in QWidgetPrivate::drawWidget ()
from /home/dementt/dev/MIReflector/Source/lib/libQtGui.so.4

#30 0xfe6f46b0 in QWidgetPrivate::paintSiblingsRecursive ()
from /home/dementt/dev/MIReflector/Source/lib/libQtGui.so.4

#31 0xfe6f38d0 in QWidgetPrivate::drawWidget ()
from /home/dementt/dev/MIReflector/Source/lib/libQtGui.so.4

#32 0xfe6f46b0 in QWidgetPrivate::paintSiblingsRecursive ()
from /home/dementt/dev/MIReflector/Source/lib/libQtGui.so.4

#33 0xfe6f38d0 in QWidgetPrivate::drawWidget ()
from /home/dementt/dev/MIReflector/Source/lib/libQtGui.so.4

#34 0xfe6f46b0 in QWidgetPrivate::paintSiblingsRecursive ()
from /home/dementt/dev/MIReflector/Source/lib/libQtGui.so.4

#35 0xfe6f4578 in QWidgetPrivate::paintSiblingsRecursive ()
from /home/dementt/dev/MIReflector/Source/lib/libQtGui.so.4

#36 0xfe6f38d0 in QWidgetPrivate::drawWidget ()
from /home/dementt/dev/MIReflector/Source/lib/libQtGui.so.4

#37 0xfe6f46b0 in QWidgetPrivate::paintSiblingsRecursive ()
from /home/dementt/dev/MIReflector/Source/lib/libQtGui.so.4

#38 0xfe6f38d0 in QWidgetPrivate::drawWidget ()
from /home/dementt/dev/MIReflector/Source/lib/libQtGui.so.4

#39 0xfe6f46b0 in QWidgetPrivate::paintSiblingsRecursive ()
from /home/dementt/dev/MIReflector/Source/lib/libQtGui.so.4

#40 0xfe6f38d0 in QWidgetPrivate::drawWidget ()
from /home/dementt/dev/MIReflector/Source/lib/libQtGui.so.4

#41 0xfe6f46b0 in QWidgetPrivate::paintSiblingsRecursive ()
from /home/dementt/dev/MIReflector/Source/lib/libQtGui.so.4

#42 0xfe6f38d0 in QWidgetPrivate::drawWidget ()
from /home/dementt/dev/MIReflector/Source/lib/libQtGui.so.4

#43 0xfe6f46b0 in QWidgetPrivate::paintSiblingsRecursive ()
from /home/dementt/dev/MIReflector/Source/lib/libQtGui.so.4

#44 0xfe6f38d0 in QWidgetPrivate::drawWidget ()
from /home/dementt/dev/MIReflector/Source/lib/libQtGui.so.4

#45 0xfe6f46b0 in QWidgetPrivate::paintSiblingsRecursive ()
from /home/dementt/dev/MIReflector/Source/lib/libQtGui.so.4

#46 0xfe6f38d0 in QWidgetPrivate::drawWidget ()
from /home/dementt/dev/MIReflector/Source/lib/libQtGui.so.4

#47 0xfe6f46b0 in QWidgetPrivate::paintSiblingsRecursive ()
from /home/dementt/dev/MIReflector/Source/lib/libQtGui.so.4

#48 0xfe6f4578 in QWidgetPrivate::paintSiblingsRecursive ()
from /home/dementt/dev/MIReflector/Source/lib/libQtGui.so.4

#49 0xfe6f38d0 in QWidgetPrivate::drawWidget ()
from /home/dementt/dev/MIReflector/Source/lib/libQtGui.so.4

#50 0xfe6f46b0 in QWidgetPrivate::paintSiblingsRecursive ()
from /home/dementt/dev/MIReflector/Source/lib/libQtGui.so.4

#51 0xfe6f38d0 in QWidgetPrivate::drawWidget ()
from /home/dementt/dev/MIReflector/Source/lib/libQtGui.so.4

#52 0xfe8f49ec in QWidgetBackingStore::sync ()
from /home/dementt/dev/MIReflector/Source/lib/libQtGui.so.4

#53 0xfe6e3178 in QWidgetPrivate::syncBackingStore ()
from /home/dementt/dev/MIReflector/Source/lib/libQtGui.so.4

#54 0xfe6f7054 in QWidget::event ()
from /home/dementt/dev/MIReflector/Source/lib/libQtGui.so.4

#55 0xfeb06a5c in QMainWindow::event ()
from /home/dementt/dev/MIReflector/Source/lib/libQtGui.so.4

#56 0xfe6a06d8 in QApplicationPrivate::notify_helper ()
from /home/dementt/dev/MIReflector/Source/lib/libQtGui.so.4

#57 0xfe6a9a84 in QApplication::notify ()
from /home/dementt/dev/MIReflector/Source/lib/libQtGui.so.4

#58 0xfdde899c in QCoreApplication::notifyInternal ()
from /home/dementt/dev/MIReflector/Source/lib/libQtCore.so.4

#59 0xfddebe48 in QCoreApplicationPrivate::sendPostedEvents ()
from /home/dementt/dev/MIReflector/Source/lib/libQtCore.so.4

#60 0xfde22098 in QEventDispatcherUNIX::processEvents ()
from /home/dementt/dev/MIReflector/Source/lib/libQtCore.so.4

#61 0xfe74cc60 in QEventDispatcherX11::processEvents ()
from /home/dementt/dev/MIReflector/Source/lib/libQtGui.so.4

#62 0xfdde78c0 in QEventLoop::processEvents ()
from /home/dementt/dev/MIReflector/Source/lib/libQtCore.so.4

#63 0xfdde7d68 in QEventLoop::exec ()
from /home/dementt/dev/MIReflector/Source/lib/libQtCore.so.4

#64 0xfddec250 in QCoreApplication::exec ()
from /home/dementt/dev/MIReflector/Source/lib/libQtCore.so.4

#65 0x00066ffc in main (argc=1, argv=0xffbff9e4) at main.cpp:208