[Kst] [Bug 208832] Segfault while simultaneously reading and plotting data

Thu Oct 1 20:01:00 CEST 2009

https://bugs.kde.org/show_bug.cgi?id=208832


--- Comment #5 from Michael Vincent <bug zilla vynce neverbox com>  2009-10-01 20:00:55 ---
Doh, I spoke too soon. It's still segfaulting occasionally for me. It does seem
to be less frequent now though. The backtraces look identical to me.

Program received signal SIGSEGV, Segmentation fault.
0x005af59e in KstVector::interpolate (this=0x8668d10, in_i=27082, ns_i=46809)
    at kstvector.cpp:202
202      GENERATE_INTERPOLATION


Thread 1:

#0  0x005af59e in KstVector::interpolate (this=0x8668d10, in_i=27082, 
    ns_i=46809) at kstvector.cpp:202
#1  0x009de84b in KstVCurve::paint (this=0x88348b8, context=@0xbfffc9f4)
    at kstvcurve.cpp:1475
#2  0x00bf0b68 in Kst2DPlot::draw (this=0x8870360, p=@0xbfffcd20)
    at kst2dplot.cpp:2903
#3  0x00bf13b6 in Kst2DPlot::draw (this=0x8870360) at kst2dplot.cpp:2737
#4  0x00bf148c in Kst2DPlot::updateSelf (this=0x8870360) at kst2dplot.cpp:2661
#5  0x00c388e5 in KstViewObject::paintUpdate (this=0x8870360)
    at kstviewobject.cpp:426
#6  0x00c3b837 in KstViewObject::paint (this=0x8870360, p=@0xbfffd028, 
    bounds=@0xbfffcfc8) at kstviewobject.cpp:340
#7  0x00c3bb44 in KstViewObject::paint (this=0x84ca678, p=@0xbfffd028, 
    bounds=@0xbfffd198) at kstviewobject.cpp:373
#8  0x00c5a05f in KstTopLevelView::paint (this=0x84ca678, p=@0xbfffd028, 
    bounds=@0xbfffd198) at ksttoplevelview.cpp:190
#9  0x00c5130f in KstTopLevelView::paint (this=0x84ca678, 
    type=KstPainter::P_PAINT, bounds=@0xbfffd198) at ksttoplevelview.cpp:209
#10 0x00c51442 in KstTopLevelView::paint (this=0x84ca678, 
    type=KstPainter::P_PAINT) at ksttoplevelview.cpp:199
#11 0x00d52199 in KstApp::paintAll (this=0x80b7a50, pt=KstPainter::P_PAINT)
    at kst.cpp:1970
#12 0x0124de62 in KstBindCurveCollection::append (this=0xb5bfa188, 
    exec=0xbfffd778, args=@0xbfffd374) at bind_curvecollection.cpp:155
#13 0x0124818e in KstBindCollection::call (this=0x8852cf0, exec=0xbfffd778, 
    self=@0xbfffd380, args=@0xbfffd374) at bind_collection.cpp:116
#14 0x053e7cb9 in KJS::Object::call (this=0xbfffd398, exec=0xbfffd778, 
    thisObj=@0xbfffd380, args=@0xbfffd374) at object.cpp:73
#15 0x05401593 in KJS::FunctionCallNode::evaluate (this=0x82e4838, 
    exec=0xbfffd778) at nodes.cpp:870
#16 0x053ff006 in KJS::ExprStatementNode::execute (this=0x82e4850, 
    exec=0xbfffd778) at nodes.cpp:1980
#17 0x053fd638 in KJS::SourceElementsNode::execute (this=0x8303ad8, 
    exec=0xbfffd778) at nodes.cpp:3114
#18 0x053f87a9 in KJS::BlockNode::execute (this=0x84b9fb0, exec=0xbfffd778)
    at nodes.cpp:1942
#19 0x053fe10c in KJS::ForNode::execute (this=0x84b8438, exec=0xbfffd778)
    at nodes.cpp:2199
#20 0x053fd638 in KJS::SourceElementsNode::execute (this=0x84d5988, 
    exec=0xbfffd778) at nodes.cpp:3114
#21 0x053f87a9 in KJS::BlockNode::execute (this=0x848ca80, exec=0xbfffd778)
    at nodes.cpp:1942
#22 0x05401f9d in KJS::InterpreterImp::evaluate (this=0x8429b20, 
    code=@0xbfffd834, thisV=@0xbfffd838) at internal.cpp:904
#23 0x0540237a in KJS::Interpreter::evaluate (this=0x8471490, 
    code=@0xbfffd834, thisV=@0xbfffd838) at interpreter.cpp:166
#24 0x012cc227 in KJSEmbed::KJSEmbedPart::execute (this=0x83214b0, 
    result=@0x8321544, script=@0xbfffd888, self=@0xbfffd90c)
    at kjsembedpart.cpp:262
#25 0x012ca76c in KJSEmbed::KJSEmbedPart::execute (this=0x83214b0, 
    script=@0xbfffd888, self=@0xbfffd90c) at kjsembedpart.cpp:256
#26 0x012cd499 in KJSEmbed::KJSEmbedPart::runFile (this=0x83214b0, 
    name=@0xbfffd91c, self=@0xbfffd90c) at kjsembedpart.cpp:294
#27 0x01220021 in KstBindKst::loadScript (this=0x865e7e8, exec=0xbfffdc98, 
    args=@0xbfffda14) at bind_kst.cpp:207
#28 0x0121f47e in KstBindKst::call (this=0x865e858, exec=0xbfffdc98, 
    self=@0xbfffda20, args=@0xbfffda14) at bind_kst.cpp:182
#29 0x053e7cb9 in KJS::Object::call (this=0xbfffda38, exec=0xbfffdc98, 
    thisObj=@0xbfffda20, args=@0xbfffda14) at object.cpp:73
#30 0x05401593 in KJS::FunctionCallNode::evaluate (this=0x844e0e8, 
    exec=0xbfffdc98) at nodes.cpp:870
#31 0x053ff006 in KJS::ExprStatementNode::execute (this=0x822db20, 
    exec=0xbfffdc98) at nodes.cpp:1980
#32 0x053fd638 in KJS::SourceElementsNode::execute (this=0x8158030, 
    exec=0xbfffdc98) at nodes.cpp:3114
#33 0x053f87a9 in KJS::BlockNode::execute (this=0x827ce48, exec=0xbfffdc98)
    at nodes.cpp:1942
#34 0x05401f9d in KJS::InterpreterImp::evaluate (this=0x8429b20, 
    code=@0xbfffdd54, thisV=@0xbfffdd58) at internal.cpp:904
#35 0x0540237a in KJS::Interpreter::evaluate (this=0x8471490, 
    code=@0xbfffdd54, thisV=@0xbfffdd58) at interpreter.cpp:166
#36 0x012cc227 in KJSEmbed::KJSEmbedPart::execute (this=0x83214b0, 
    result=@0xbfffdda8, script=@0xbfffde84, self=@0xbfffdde0)
    at kjsembedpart.cpp:262
#37 0x01203fd3 in JSIfaceImpl::evaluate (this=0x85e8338, script=@0xbfffde84)
    at jsiface_impl.cpp:50
#38 0x012c86ad in JSIface::process (this=0x85e8338, fun=@0xbfffe0e4, 
    data=@0xbfffe0dc, replyType=@0xbfffe0d4, replyData=@0xbfffe0cc)
    at jsiface_skel.cpp:33
#39 0x00485f8e in DCOPClient::receive (this=0x809bff0, objId=@0xbfffe0ec, 
    fun=@0xbfffe0e4, data=@0xbfffe0dc, replyType=@0xbfffe0d4, 
    replyData=@0xbfffe0cc) at dcopclient.cpp:1643
#40 0x0048b3d1 in DCOPProcessInternal (d=0x80a3dc8, opcode=2, key=69, 
    dataReceived=@0xbfffe1c0, canPost=true) at dcopclient.cpp:520
#41 0x0048be2a in DCOPProcessMessage (iceConn=0x809fcc0, 
    clientObject=0x80a3dc8, opcode=2, length=544, replyWait=0x0, 
    replyWaitRet=0xbfffe214) at dcopclient.cpp:432
#42 0x00498e14 in KDE_IceProcessMessages (iceConn=0x809fcc0, replyWait=0x0, 
    replyReadyRet=0x0) at process.c:326
#43 0x0047c6df in DCOPClient::processSocketData (this=0x809bff0, fd=12)
    at dcopclient.cpp:2014
#44 0x0048bb34 in DCOPClient::qt_invoke (this=0x809bff0, _id=2, _o=0xbfffe36c)
    at ./dcopclient.moc:176
#45 0x022b0e4a in QObject::activate_signal (this=0x809f670, clist=0x809f8e0, 
    o=0xbfffe36c) at kernel/qobject.cpp:2359
#46 0x022b2c43 in QObject::activate_signal (this=0x809f670, signal=2, param=12)
    at kernel/qobject.cpp:2452
#47 0x0264a6c0 in QSocketNotifier::activated (this=0x809f670, t0=12)
    at .moc/release-shared-mt/moc_qsocketnotifier.cpp:85
#48 0x022d3267 in QSocketNotifier::event (this=0x809f670, e=0xbfffe6a8)
    at kernel/qsocketnotifier.cpp:261
#49 0x02247f75 in QApplication::internalNotify (this=0xbffff170, 
    receiver=0x809f670, e=0xbfffe6a8) at kernel/qapplication.cpp:2638
#50 0x022490c6 in QApplication::notify (this=0xbffff170, receiver=0x809f670, 
    e=0xbfffe6a8) at kernel/qapplication.cpp:2375
#51 0x02bf1262 in KApplication::notify (this=0xbffff170, receiver=0x809f670, 
    event=0xbfffe6a8) at kapplication.cpp:550
#52 0x0223b961 in QApplication::sendEvent () at kernel/qapplication.h:523
#53 QEventLoop::activateSocketNotifiers (this=0x8099110)
    at kernel/qeventloop_unix.cpp:581
#54 0x021f0aa3 in QEventLoop::processEvents (this=0x8099110, flags=4)
    at kernel/qeventloop_x11.cpp:386
#55 0x02262630 in QEventLoop::enterLoop (this=0x8099110)
    at kernel/qeventloop.cpp:201
#56 0x022624f6 in QEventLoop::exec (this=0x8099110)
    at kernel/qeventloop.cpp:148
#57 0x0224864f in QApplication::exec (this=0xbffff170)
    at kernel/qapplication.cpp:2761
#58 0x080539eb in main (argc=1, argv=0xbffff2f4) at main.cpp:854


Thread 2:

#0  0x005b0bc0 in KstVector::resize (this=0x8668d10, sz=62412, reinit=true)
    at kstvector.cpp:445
#1  0x005b9e0d in KstRVector::doUpdate (this=0x8668d10, force=false)
    at kstrvector.cpp:629
#2  0x005ba4ac in KstRVector::update (this=0x8668d10, update_counter=9)
    at kstrvector.cpp:459
#3  0x009dad42 in KstVCurve::update (this=0x866ba28, update_counter=9)
    at kstvcurve.cpp:249
#4  0x00cdd5c2 in UpdateThread::doUpdates (this=0x858e748, force=false, 
    gotData=0xb7b1633b) at updatethread.cpp:212
#5  0x00cdedc7 in UpdateThread::run (this=0x858e748) at updatethread.cpp:114
#6  0x022414bc in QThreadInstance::start (_arg=0x85900c4)
    at kernel/qthread_unix.cpp:122
#7  0x0021251f in start_thread (arg=0xb7b16b90) at pthread_create.c:297
#8  0x010de04e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

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