Created attachment 136375 [details]
affected document

The attached .doc document (compressed to avoid search engines content indexing), triggers Libreoffice high CPU usage, making very very slow the scrolling between pages.

Operating system: Fedora 26


Version: 5.3.6.1
Build ID: 5.3.6.1-5.fc26
Thread CPU: 4; Versione SO: Linux 4.12; Interface: default; VCL: gtk3; layout engine: new; 
local version: it-IT (it_IT.UTF-8); Calc: group


I attach gdb backtrace while Libreoffice was using a lot of CPU resources



$ gdb soffice.bin 8055
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soffice.bin: No such file or directory.
Attaching to process 8055
[New LWP 8057]
[New LWP 8067]
[New LWP 8068]
[New LWP 8069]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
0x00007f68a01f6ad3 in BitmapReadAccess::SetPixelForN32BitTcBgra(unsigned char*, long, BitmapColor const&, ColorMask const&) ()
   from /usr/lib64/libreoffice/program/libvcllo.so
(gdb) thread apply all backtrace

Thread 5 (Thread 0x7f6879dc0700 (LWP 8069)):
#0  0x00007f68a7b06acd in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f68a6188569 in g_main_context_poll (priority=<optimized out>, n_fds=2, fds=0x7f68680010c0, timeout=<optimized out>, context=0x5615fb84d000)
    at gmain.c:4271
#2  0x00007f68a6188569 in g_main_context_iterate (context=0x5615fb84d000, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3967
#3  0x00007f68a6188902 in g_main_loop_run (loop=0x5615fb853870) at gmain.c:4168
#4  0x00007f689fb46cb6 in gdbus_shared_thread_func (user_data=0x5615fb857700) at gdbusprivate.c:252
#5  0x00007f68a61af536 in g_thread_proxy (data=0x5615fb7f8f70) at gthread.c:784
#6  0x00007f68a77ea36d in start_thread (arg=0x7f6879dc0700) at pthread_create.c:456
#7  0x00007f68a7b12bbf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 4 (Thread 0x7f687a5c1700 (LWP 8068)):
#0  0x00007f68a7b06acd in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f68a6188569 in g_main_context_poll (priority=<optimized out>, n_fds=2, fds=0x7f68700008e0, timeout=<optimized out>, context=0x5615fb847980)
    at gmain.c:4271
#2  0x00007f68a6188569 in g_main_context_iterate (context=context@entry=0x5615fb847980, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>)
    at gmain.c:3967
#3  0x00007f68a618867c in g_main_context_iteration (context=0x5615fb847980, may_block=may_block@entry=1) at gmain.c:4033
#4  0x00007f68a61886c1 in glib_worker_main (data=<optimized out>) at gmain.c:5824
#5  0x00007f68a61af536 in g_thread_proxy (data=0x5615fb7f8ed0) at gthread.c:784
#6  0x00007f68a77ea36d in start_thread (arg=0x7f687a5c1700) at pthread_create.c:456
#7  0x00007f68a7b12bbf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97
---Type <return> to continue, or q <return> to quit---

Thread 3 (Thread 0x7f6880a0e700 (LWP 8067)):
#0  0x00007f68a7b137cd in accept () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f68a80b4f50 in osl_acceptPipe () at /usr/lib64/libreoffice/program/libuno_sal.so.3
#2  0x00007f68a7e1f312 in desktop::PipeIpcThread::execute() () at /usr/lib64/libreoffice/program/libsofficeapp.so
#3  0x00007f68a3e89966 in salhelper::Thread::run() () at /usr/lib64/libreoffice/program/libuno_salhelpergcc3.so.3
#4  0x00007f68a3e89b4a in threadFunc () at /usr/lib64/libreoffice/program/libuno_salhelpergcc3.so.3
#5  0x00007f68a80ba6c9 in osl_thread_start_Impl(void*) () at /usr/lib64/libreoffice/program/libuno_sal.so.3
#6  0x00007f68a77ea36d in start_thread (arg=0x7f6880a0e700) at pthread_create.c:456
#7  0x00007f68a7b12bbf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 2 (Thread 0x7f688d63e700 (LWP 8057)):
#0  0x00007f68a77f0eb6 in futex_abstimed_wait_cancelable (private=<optimized out>, abstime=0x7f688d63db30, expected=0, futex_word=0x7f68a82d42f0 <g_cache_list+656>)
    at ../sysdeps/unix/sysv/linux/futex-internal.h:205
#1  0x00007f68a77f0eb6 in __pthread_cond_wait_common (abstime=0x7f688d63db30, mutex=0x7f68a82d4060 <g_cache_list>, cond=0x7f68a82d42c8 <g_cache_list+616>)
    at pthread_cond_wait.c:539
#2  0x00007f68a77f0eb6 in __pthread_cond_timedwait (cond=0x7f68a82d42c8 <g_cache_list+616>, mutex=0x7f68a82d4060 <g_cache_list>, abstime=0x7f688d63db30)
    at pthread_cond_wait.c:667
#3  0x00007f68a809576d in rtl_cache_wsupdate_all(void*) () at /usr/lib64/libreoffice/program/libuno_sal.so.3
#4  0x00007f68a77ea36d in start_thread (arg=0x7f688d63e700) at pthread_create.c:456
#5  0x00007f68a7b12bbf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 1 (Thread 0x7f68a83dfac0 (LWP 8055)):
---Type <return> to continue, or q <return> to quit---
#0  0x00007f68a01f6ad3 in BitmapReadAccess::SetPixelForN32BitTcBgra(unsigned char*, long, BitmapColor const&, ColorMask const&) ()
    at /usr/lib64/libreoffice/program/libvcllo.so
#1  0x00007f6847034b45 in cairocanvas::CanvasBitmap::getFastPropertyValue(int) () at /usr/lib64/libreoffice/program/../program/libcairocanvaslo.so
#2  0x00007f68a01f2fb2 in BitmapEx::Create(com::sun::star::uno::Reference<com::sun::star::rendering::XBitmapCanvas> const&, Size const&) ()
    at /usr/lib64/libreoffice/program/libvcllo.so
#3  0x00007f68a0216743 in GDIMetaFile::ImplPlayWithRenderer(OutputDevice*, Point const&, Size) () at /usr/lib64/libreoffice/program/libvcllo.so
#4  0x00007f68a02170af in GDIMetaFile::Play(OutputDevice*, Point const&, Size const&) () at /usr/lib64/libreoffice/program/libvcllo.so
#5  0x00007f68a022a5f7 in ImpGraphic::ImplDraw(OutputDevice*, Point const&, Size const&) const () at /usr/lib64/libreoffice/program/libvcllo.so
#6  0x00007f68a022ddc7 in ImpGraphic::ImplGetBitmap(GraphicConversionParameters const&) const () at /usr/lib64/libreoffice/program/libvcllo.so
#7  0x00007f68a022e25d in ImpGraphic::ImplGetBitmapEx(GraphicConversionParameters const&) const () at /usr/lib64/libreoffice/program/libvcllo.so
#8  0x00007f68a0224a81 in Graphic::GetBitmapEx(GraphicConversionParameters const&) const () at /usr/lib64/libreoffice/program/libvcllo.so
#9  0x00007f6894a6a2fd in cppcanvas::internal::ImplRenderer::processEMFPlus(MetaCommentAction*, cppcanvas::internal::ActionFactoryParameters const&, cppcanvas::internal::OutDevState&, std::shared_ptr<cppcanvas::Canvas> const&) () at /usr/lib64/libreoffice/program/libcppcanvaslo.so
#10 0x00007f6894a76bdd in cppcanvas::internal::ImplRenderer::createActions(GDIMetaFile&, cppcanvas::internal::ActionFactoryParameters const&, bool) ()
    at /usr/lib64/libreoffice/program/libcppcanvaslo.so
#11 0x00007f6894a7a383 in cppcanvas::internal::ImplRenderer::ImplRenderer(std::shared_ptr<cppcanvas::Canvas> const&, GDIMetaFile const&, cppcanvas::Renderer::Parameters const&) () at /usr/lib64/libreoffice/program/libcppcanvaslo.so
#12 0x00007f6894a924a2 in cppcanvas::VCLFactory::createRenderer(std::shared_ptr<cppcanvas::Canvas> const&, GDIMetaFile const&, cppcanvas::Renderer::Parameters const&) () at /usr/lib64/libreoffice/program/libcppcanvaslo.so
#13 0x00007f6846df5869 in MtfRenderer::draw(double, double) () at /usr/lib64/libreoffice/program/../program/libmtfrendererlo.so
#14 0x00007f68a021671f in GDIMetaFile::ImplPlayWithRenderer(OutputDevice*, Point const&, Size) () at /usr/lib64/libreoffice/program/libvcllo.so
#15 0x00007f68a02170af in GDIMetaFile::Play(OutputDevice*, Point const&, Size const&) () at /usr/lib64/libreoffice/program/libvcllo.so
#16 0x00007f689ae35ef6 in drawinglayer::processor2d::VclProcessor2D::RenderMetafilePrimitive2D(drawinglayer::primitive2d::MetafilePrimitive2D const&) ()
---Type <return> to continue, or q <return> to quit---
    at /usr/lib64/libreoffice/program/libdrawinglayerlo.so
#17 0x00007f689ae33d2a in drawinglayer::processor2d::VclPixelProcessor2D::processBasePrimitive2D(drawinglayer::primitive2d::BasePrimitive2D const&) ()
    at /usr/lib64/libreoffice/program/libdrawinglayerlo.so
#18 0x00007f689ae246ef in drawinglayer::processor2d::BaseProcessor2D::process(drawinglayer::primitive2d::Primitive2DContainer const&) ()
    at /usr/lib64/libreoffice/program/libdrawinglayerlo.so
#19 0x00007f689ae24a9f in drawinglayer::processor2d::BaseProcessor2D::process(drawinglayer::primitive2d::BasePrimitive2D const&) ()
    at /usr/lib64/libreoffice/program/libdrawinglayerlo.so
#20 0x00007f689ae33abb in drawinglayer::processor2d::VclPixelProcessor2D::processBasePrimitive2D(drawinglayer::primitive2d::BasePrimitive2D const&) ()
    at /usr/lib64/libreoffice/program/libdrawinglayerlo.so
#21 0x00007f689ae246ef in drawinglayer::processor2d::BaseProcessor2D::process(drawinglayer::primitive2d::Primitive2DContainer const&) ()
    at /usr/lib64/libreoffice/program/libdrawinglayerlo.so
#22 0x00007f684b302414 in paintUsingPrimitivesHelper(OutputDevice&, drawinglayer::primitive2d::Primitive2DContainer const&, basegfx::B2DRange const&, basegfx::B2DRange const&) () at /usr/lib64/libreoffice/program/../program/libswlo.so
#23 0x00007f684b303147 in paintGraphicUsingPrimitivesHelper(OutputDevice&, GraphicObject const&, GraphicAttr const&, SwRect const&) ()
    at /usr/lib64/libreoffice/program/../program/libswlo.so
#24 0x00007f684b30389a in SwNoTextFrame::PaintPicture(OutputDevice*, SwRect const&) const () at /usr/lib64/libreoffice/program/../program/libswlo.so
#25 0x00007f684b3049fb in SwNoTextFrame::Paint(OutputDevice&, SwRect const&, SwPrintData const*) const () at /usr/lib64/libreoffice/program/../program/libswlo.so
#26 0x00007f684b4ab6d0 in SwLayoutFrame::Paint(OutputDevice&, SwRect const&, SwPrintData const*) const () at /usr/lib64/libreoffice/program/../program/libswlo.so
#27 0x00007f684b4acf7f in SwFlyFrame::Paint(OutputDevice&, SwRect const&, SwPrintData const*) const () at /usr/lib64/libreoffice/program/../program/libswlo.so
#28 0x00007f684b55675f in SwFlyCntPortion::Paint(SwTextPaintInfo const&) const () at /usr/lib64/libreoffice/program/../program/libswlo.so
#29 0x00007f684b54f30c in SwTextPainter::DrawTextLine(SwRect const&, SwSaveClip&, bool) () at /usr/lib64/libreoffice/program/../program/libswlo.so
#30 0x00007f684b5312fa in SwTextFrame::Paint(OutputDevice&, SwRect const&, SwPrintData const*) const () at /usr/lib64/libreoffice/program/../program/libswlo.so
#31 0x00007f684b4ab6d0 in SwLayoutFrame::Paint(OutputDevice&, SwRect const&, SwPrintData const*) const () at /usr/lib64/libreoffice/program/../program/libswlo.so
---Type <return> to continue, or q <return> to quit---
#32 0x00007f684b4ab6d0 in SwLayoutFrame::Paint(OutputDevice&, SwRect const&, SwPrintData const*) const () at /usr/lib64/libreoffice/program/../program/libswlo.so
#33 0x00007f684b4afd80 in SwRootFrame::Paint(OutputDevice&, SwRect const&, SwPrintData const*) const () at /usr/lib64/libreoffice/program/../program/libswlo.so
#34 0x00007f684b7c9d24 in SwViewShell::Paint(OutputDevice&, Rectangle const&) () at /usr/lib64/libreoffice/program/../program/libswlo.so
#35 0x00007f684b1fd8bd in SwCursorShell::Paint(OutputDevice&, Rectangle const&) () at /usr/lib64/libreoffice/program/../program/libswlo.so
#36 0x00007f684b9578bd in SwEditWin::Paint(OutputDevice&, Rectangle const&) () at /usr/lib64/libreoffice/program/../program/libswlo.so
#37 0x00007f68a0042bdd in PaintHelper::DoPaint(vcl::Region const*) () at /usr/lib64/libreoffice/program/libvcllo.so
#38 0x00007f68a0042fcb in vcl::Window::ImplCallPaint(vcl::Region const*, unsigned short) () at /usr/lib64/libreoffice/program/libvcllo.so
#39 0x00007f68a0043744 in vcl::Window::Update() () at /usr/lib64/libreoffice/program/libvcllo.so
#40 0x00007f684b7c9027 in SwViewShell::VisPortChgd(SwRect const&) () at /usr/lib64/libreoffice/program/../program/libswlo.so
#41 0x00007f684b1fdaa0 in SwCursorShell::VisPortChgd(SwRect const&) () at /usr/lib64/libreoffice/program/../program/libswlo.so
#42 0x00007f684ba4a042 in SwView::SetVisArea(Rectangle const&, bool) () at /usr/lib64/libreoffice/program/../program/libswlo.so
#43 0x00007f684ba4a5e9 in SwView::SetVisArea(Point const&, bool) () at /usr/lib64/libreoffice/program/../program/libswlo.so
#44 0x00007f684ba4b71f in SwView::EndScrollHdl(ScrollBar*) () at /usr/lib64/libreoffice/program/../program/libswlo.so
#45 0x00007f684ba4b849 in SwView::ScrollHdl(ScrollBar*) () at /usr/lib64/libreoffice/program/../program/libswlo.so
#46 0x00007f68a01328ea in Control::ImplCallEventListenersAndHandler(unsigned long, std::function<void ()> const&) () at /usr/lib64/libreoffice/program/libvcllo.so
#47 0x00007f68a0170df2 in ScrollBar::Scroll() () at /usr/lib64/libreoffice/program/libvcllo.so
#48 0x00007f68a0170fef in ScrollBar::ImplScroll(long, bool) () at /usr/lib64/libreoffice/program/libvcllo.so
#49 0x00007f68a0171468 in ScrollBar::DoScroll(long) () at /usr/lib64/libreoffice/program/libvcllo.so
#50 0x00007f68a0102455 in vcl::Window::HandleScrollCommand(CommandEvent const&, ScrollBar*, ScrollBar*) () at /usr/lib64/libreoffice/program/libvcllo.so
#51 0x00007f684ba4b39b in SwView::HandleWheelCommands(CommandEvent const&) () at /usr/lib64/libreoffice/program/../program/libswlo.so
#52 0x00007f684b94ce86 in SwEditWin::Command(CommandEvent const&) () at /usr/lib64/libreoffice/program/../program/libswlo.so
#53 0x00007f68a0119e5f in HandleWheelEvent::CallCommand(vcl::Window*, Point const&) () at /usr/lib64/libreoffice/program/libvcllo.so
#54 0x00007f68a0114e3b in HandleGestureEventBase::Dispatch(vcl::Window*) () at /usr/lib64/libreoffice/program/libvcllo.so
---Type <return> to continue, or q <return> to quit---
#55 0x00007f68a01153fa in HandleWheelEvent::HandleEvent(SalWheelMouseEvent const&) () at /usr/lib64/libreoffice/program/libvcllo.so
#56 0x00007f68a0115606 in ImplHandleWheelEvent(vcl::Window*, SalWheelMouseEvent const&, bool) () at /usr/lib64/libreoffice/program/libvcllo.so
#57 0x00007f68a0118ce1 in ImplWindowFrameProc(vcl::Window*, SalEvent, void const*) () at /usr/lib64/libreoffice/program/libvcllo.so
#58 0x00007f6885f2f0b9 in GtkSalFrame::CallCallbackExc(SalEvent, void const*) const () at /usr/lib64/libreoffice/program/libvclplug_gtk3lo.so
#59 0x00007f6885f34695 in GtkSalFrame::signalScroll(_GtkWidget*, _GdkEvent*, void*) () at /usr/lib64/libreoffice/program/libvclplug_gtk3lo.so
#60 0x00007f68857dc1f7 in _gtk_marshal_BOOLEAN__BOXEDv (closure=0x561600c6d690, return_value=0x7ffc399a2690, instance=<optimized out>, args=<optimized out>, marshal_data=<optimized out>, n_params=<optimized out>, param_types=0x5615fb7e1fe0) at gtkmarshalers.c:128
#61 0x00007f68a6460546 in _g_closure_invoke_va (closure=0x561600c6d690, return_value=0x7ffc399a2690, instance=0x5615fc06df90, args=0x7ffc399a2760, n_params=1, param_types=0x5615fb7e1fe0) at gclosure.c:867
#62 0x00007f68a647ae69 in g_signal_emit_valist (instance=0x5615fc06df90, signal_id=<optimized out>, detail=0, var_args=var_args@entry=0x7ffc399a2760)
    at gsignal.c:3300
#63 0x00007f68a647bb0f in g_signal_emit (instance=instance@entry=0x5615fc06df90, signal_id=<optimized out>, detail=detail@entry=0) at gsignal.c:3447
#64 0x00007f68859269c4 in gtk_widget_event_internal (widget=widget@entry=0x5615fc06df90 [GtkEventBox], event=event@entry=0x561601b31680) at gtkwidget.c:7723
#65 0x00007f6885928b1a in gtk_widget_event (widget=widget@entry=0x5615fc06df90 [GtkEventBox], event=event@entry=0x561601b31680) at gtkwidget.c:7293
#66 0x00007f68857d90ce in propagate_event_up (topmost=<optimized out>, event=<optimized out>, widget=0x5615fc06df90 [GtkEventBox]) at gtkmain.c:2578
#67 0x00007f68857d90ce in propagate_event (widget=<optimized out>, event=0x561601b31680, captured=<optimized out>, topmost=0x0) at gtkmain.c:2680
#68 0x00007f68857db1f0 in gtk_main_do_event (event=<optimized out>) at gtkmain.c:1911
#69 0x00007f68852ec685 in _gdk_event_emit (event=event@entry=0x561601b31680) at gdkevents.c:73
#70 0x00007f688531db52 in gdk_event_source_dispatch (source=<optimized out>, callback=<optimized out>, user_data=<optimized out>) at gdkeventsource.c:367
#71 0x00007f68a6188247 in g_main_dispatch (context=0x5615fac4cef0) at gmain.c:3234
#72 0x00007f68a6188247 in g_main_context_dispatch (context=context@entry=0x5615fac4cef0) at gmain.c:3899
#73 0x00007f68a61885e8 in g_main_context_iterate (context=context@entry=0x5615fac4cef0, block=block@entry=0, dispatch=dispatch@entry=1, self=<optimized out>)
    at gmain.c:3972
---Type <return> to continue, or q <return> to quit---
#74 0x00007f68a618867c in g_main_context_iteration (context=0x5615fac4cef0, may_block=0) at gmain.c:4033
#75 0x00007f6885efb754 in GtkData::Yield(bool, bool) () at /usr/lib64/libreoffice/program/libvclplug_gtk3lo.so
#76 0x00007f68a031aead in Application::Yield() () at /usr/lib64/libreoffice/program/libvcllo.so
#77 0x00007f68a031cc45 in Application::Execute() () at /usr/lib64/libreoffice/program/libvcllo.so
#78 0x00007f68a7df99ee in desktop::Desktop::Main() () at /usr/lib64/libreoffice/program/libsofficeapp.so
#79 0x00007f68a03217a6 in ImplSVMain() () at /usr/lib64/libreoffice/program/libvcllo.so
#80 0x00007f68a03218b0 in SVMain() () at /usr/lib64/libreoffice/program/libvcllo.so
#81 0x00007f68a7e24025 in soffice_main () at /usr/lib64/libreoffice/program/libsofficeapp.so
#82 0x00005615f9e3b76b in main ()