[Bug 81623] Intel DRI3 driver hangs WebKitGTK

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=81623

--- Comment #12 from Nikolay <mar.kolya at gmail.com> ---
Looks like the problem still exists on Ubuntu 15.10 with FF and oibaf ppa:

#0  pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f4a27f0ee29 in _xcb_conn_wait (c=c at entry=0x7f4a1ba1a000,
cond=cond at entry=0x7f4a061e05a8, vector=vector at entry=0x0, count=count at entry=0x0)
at ../../src/xcb_conn.c:427
#2  0x00007f4a27f10089 in xcb_wait_for_special_event (c=0x7f4a1ba1a000,
se=0x7f4a061e0580) at ../../src/xcb_in.c:716
#3  0x00007f49fe2de9c7 in dri3_find_back (draw=0x7f49d6ac07b8) at
../../../../src/loader/loader_dri3_helper.c:380
#4  0x00007f49fe2df822 in loader_dri3_get_buffers (driDrawable=<optimized out>,
format=4098, stamp=0x7f49e10cd9b0, loaderPrivate=0x7f49d6ac07b8,
buffer_mask=<optimized out>, buffers=0x7f4a03dfe590) at
../../../../src/loader/loader_dri3_helper.c:1193
#5  0x00007f49fcb611d7 in intel_update_renderbuffers (context=<optimized out>,
drawable=0x7f49e10cd980) at
../../../../../../../src/mesa/drivers/dri/i965/brw_context.c:1628
#6  0x00007f49fcb615ae in intel_prepare_render (brw=0x7f49e109a028) at
../../../../../../../src/mesa/drivers/dri/i965/brw_context.c:1365
#7  0x00007f49fcb52763 in brw_clear (ctx=0x7f49e109a028, mask=2) at
../../../../../../../src/mesa/drivers/dri/i965/brw_clear.c:232
#8  0x00007f4a20497d13 in mozilla::gl::GLContext::fClear (this=0x7f49e10ff000,
mask=mask at entry=16640) at
/build/firefox-trunk-fYuA0y/firefox-trunk-47.0~a1~hg20160125r281515/obj-x86_64-linux-gnu/dist/include/GLContext.h:970
#9  0x00007f4a204a6a75 in mozilla::layers::CompositorOGL::BeginFrame
(this=0x7f49ed870800, aInvalidRegion=..., aClipRectIn=0x0, aRenderBounds=...,
aClipRectOut=0x7f4a03dfe800, aRenderBoundsOut=<optimized out>) at
/build/firefox-trunk-fYuA0y/firefox-trunk-47.0~a1~hg20160125r281515/gfx/layers/opengl/CompositorOGL.cpp:717
#10 0x00007f4a2047b54c in mozilla::layers::LayerManagerComposite::Render
(this=this at entry=0x7f49d6a650c0, aInvalidRegion=...) at
/build/firefox-trunk-fYuA0y/firefox-trunk-47.0~a1~hg20160125r281515/gfx/layers/composite/LayerManagerComposite.cpp:851
#11 0x00007f4a2047bbec in
mozilla::layers::LayerManagerComposite::UpdateAndRender
(this=this at entry=0x7f49d6a650c0) at
/build/firefox-trunk-fYuA0y/firefox-trunk-47.0~a1~hg20160125r281515/gfx/layers/composite/LayerManagerComposite.cpp:445
#12 0x00007f4a2047bd2e in
mozilla::layers::LayerManagerComposite::EndTransaction (this=0x7f49d6a650c0,
aTimeStamp=..., aFlags=aFlags at entry=mozilla::layers::LayerManager::END_DEFAULT)
at
/build/firefox-trunk-fYuA0y/firefox-trunk-47.0~a1~hg20160125r281515/gfx/layers/composite/LayerManagerComposite.cpp:367
#13 0x00007f4a20493093 in mozilla::layers::CompositorParent::CompositeToTarget
(this=0x7f49e105ac00, aTarget=aTarget at entry=0x0, aRect=aRect at entry=0x0) at
/build/firefox-trunk-fYuA0y/firefox-trunk-47.0~a1~hg20160125r281515/gfx/layers/ipc/CompositorParent.cpp:1251
#14 0x00007f4a204931dc in
mozilla::layers::CompositorVsyncScheduler::ComposeToTarget
(this=this at entry=0x7f49e108b000, aTarget=aTarget at entry=0x0,
aRect=aRect at entry=0x0) at
/build/firefox-trunk-fYuA0y/firefox-trunk-47.0~a1~hg20160125r281515/gfx/layers/ipc/CompositorParent.cpp:644
#15 0x00007f4a2049324d in mozilla::layers::CompositorVsyncScheduler::Composite
(this=0x7f49e108b000, aVsyncTimestamp=...) at
/build/firefox-trunk-fYuA0y/firefox-trunk-47.0~a1~hg20160125r281515/gfx/layers/ipc/CompositorParent.cpp:517
#16 0x00007f4a1fff47db in MessageLoop::RunTask (this=0x7f4a03dfed38,
task=0x7f49db68af10) at
/build/firefox-trunk-fYuA0y/firefox-trunk-47.0~a1~hg20160125r281515/ipc/chromium/src/base/message_loop.cc:364
#17 0x00007f4a1fff9456 in MessageLoop::DeferOrRunPendingTask (this=<optimized
out>, pending_task=...) at
/build/firefox-trunk-fYuA0y/firefox-trunk-47.0~a1~hg20160125r281515/ipc/chromium/src/base/message_loop.cc:372
#18 0x00007f4a1fff959a in MessageLoop::DoWork (this=0x7f4a03dfed38) at
/build/firefox-trunk-fYuA0y/firefox-trunk-47.0~a1~hg20160125r281515/ipc/chromium/src/base/message_loop.cc:459
#19 0x00007f4a1fff49a8 in base::MessagePumpDefault::Run (this=0x7f4a03f31f70,
delegate=0x7f4a03dfed38) at
/build/firefox-trunk-fYuA0y/firefox-trunk-47.0~a1~hg20160125r281515/ipc/chromium/src/base/message_pump_default.cc:34
#20 0x00007f4a1fff4854 in MessageLoop::RunHandler (this=<optimized out>) at
/build/firefox-trunk-fYuA0y/firefox-trunk-47.0~a1~hg20160125r281515/ipc/chromium/src/base/message_loop.cc:227
#21 MessageLoop::Run (this=this at entry=0x7f4a03dfed38) at
/build/firefox-trunk-fYuA0y/firefox-trunk-47.0~a1~hg20160125r281515/ipc/chromium/src/base/message_loop.cc:201
#22 0x00007f4a1fffbd90 in base::Thread::ThreadMain (this=0x7f4a066ca650) at
/build/firefox-trunk-fYuA0y/firefox-trunk-47.0~a1~hg20160125r281515/ipc/chromium/src/base/thread.cc:172
#23 0x00007f4a1fff980b in ThreadFunc (closure=<optimized out>) at
/build/firefox-trunk-fYuA0y/firefox-trunk-47.0~a1~hg20160125r281515/ipc/chromium/src/base/platform_thread_posix.cc:36
#24 0x00007f4a2f98a6aa in start_thread (arg=0x7f4a03dff700) at
pthread_create.c:333
#25 0x00007f4a2ec1ae9d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

(at least backtrace looks quite similar)

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