Program received signal SIGSEGV, Segmentation fault.
XGetXCBConnection (dpy=dpy@entry=0x4038a00010204408) at /var/tmp/portage/x11-libs/libX11-1.6.3/work/libX11-1.6.3/src/x11_xcb.c:9
9	/var/tmp/portage/x11-libs/libX11-1.6.3/work/libX11-1.6.3/src/x11_xcb.c: No such file or directory.
(gdb) bt
#0  XGetXCBConnection (dpy=dpy@entry=0x4038a00010204408) at /var/tmp/portage/x11-libs/libX11-1.6.3/work/libX11-1.6.3/src/x11_xcb.c:9
#1  0x00007f4e8cc27169 in __glXFlushRenderBuffer (ctx=ctx@entry=0x7f4e92bf5f40, pc=0xe00000100 <error: Cannot access memory at address 0xe00000100>)
    at /var/tmp/portage/media-libs/mesa-11.0.6-r99/work/mesa-11.0.6/src/glx/glxext.c:987
#2  0x00007f4e8cc271ca in __glXSetupForCommand (dpy=dpy@entry=0xa7d000) at /var/tmp/portage/media-libs/mesa-11.0.6-r99/work/mesa-11.0.6/src/glx/glxext.c:951
#3  0x00007f4e8cc286c8 in CreateDrawable (dpy=0xa7d000, config=0xb1ed00, drawable=21008754, attrib_list=0x0, glxCode=<optimized out>)
    at /var/tmp/portage/media-libs/mesa-11.0.6-r99/work/mesa-11.0.6/src/glx/glx_pbuffer.c:461
#4  0x00007f4e85cb5410 in mozilla::gl::GLXLibrary::xCreatePixmap (this=this@entry=0x7f4e89d95080 <mozilla::gl::sGLXLibrary>, display=display@entry=0xa7d000, config=config@entry=0xb1ed00, 
    pixmap=pixmap@entry=21008754, attrib_list=attrib_list@entry=0x0) at /var/tmp/portage/www-client/firefox-45.0_beta2/work/firefox-45.0b2/gfx/gl/GLContextProviderGLX.cpp:655
#5  0x00007f4e85cb6dde in mozilla::gl::CreateOffscreenPixmapContext (minCaps=..., profile=profile@entry=mozilla::gl::ContextProfile::OpenGLCompatibility, size=...)
    at /var/tmp/portage/www-client/firefox-45.0_beta2/work/firefox-45.0b2/gfx/gl/GLContextProviderGLX.cpp:1257
#6  0x00007f4e85cb6f95 in mozilla::gl::GLContextProviderGLX::CreateOffscreen (size=..., minCaps=..., 
    flags=flags@entry=(mozilla::gl::CreateContextFlags::REQUIRE_COMPAT_PROFILE | mozilla::gl::CreateContextFlags::FORCE_ENABLE_HARDWARE))
    at /var/tmp/portage/www-client/firefox-45.0_beta2/work/firefox-45.0b2/gfx/gl/GLContextProviderGLX.cpp:1303
#7  0x00007f4e867d7454 in mozilla::CreateGLWithDefault (caps=..., flags=<optimized out>, webgl=0x6b637a0)
    at /var/tmp/portage/www-client/firefox-45.0_beta2/work/firefox-45.0b2/dom/canvas/WebGLContext.cpp:600
#8  0x00007f4e867db197 in mozilla::WebGLContext::CreateAndInitGLWith (this=this@entry=0x6b637a0, 
    fnCreateGL=fnCreateGL@entry=0x7f4e867d737d <mozilla::CreateGLWithDefault(mozilla::gl::SurfaceCaps const&, mozilla::gl::CreateContextFlags, mozilla::WebGLContext*)>, baseCaps=..., 
    flags=flags@entry=(mozilla::gl::CreateContextFlags::REQUIRE_COMPAT_PROFILE | mozilla::gl::CreateContextFlags::FORCE_ENABLE_HARDWARE))
    at /var/tmp/portage/www-client/firefox-45.0_beta2/work/firefox-45.0b2/dom/canvas/WebGLContext.cpp:628
#9  0x00007f4e867db4b5 in mozilla::WebGLContext::CreateAndInitGL (this=this@entry=0x6b637a0, forceEnabled=forceEnabled@entry=true)
    at /var/tmp/portage/www-client/firefox-45.0_beta2/work/firefox-45.0b2/dom/canvas/WebGLContext.cpp:677
#10 0x00007f4e867dcae3 in mozilla::WebGLContext::SetDimensions (this=0x6b637a0, signedWidth=<optimized out>, signedHeight=<optimized out>)
    at /var/tmp/portage/www-client/firefox-45.0_beta2/work/firefox-45.0b2/dom/canvas/WebGLContext.cpp:843
#11 0x00007f4e867a469c in mozilla::dom::CanvasRenderingContextHelper::UpdateContext (this=0xd9405f8, aCx=0xbf19120, aNewContextOptions=..., aRvForDictionaryInit=...)
    at /var/tmp/portage/www-client/firefox-45.0_beta2/work/firefox-45.0b2/dom/canvas/CanvasRenderingContextHelper.cpp:219
#12 0x00007f4e867a7864 in mozilla::dom::CanvasRenderingContextHelper::GetContext (this=0xd9405f8, aCx=0xbf19120, aContextId=..., aContextOptions=..., aRv=...)
    at /var/tmp/portage/www-client/firefox-45.0_beta2/work/firefox-45.0b2/dom/canvas/CanvasRenderingContextHelper.cpp:177
#13 0x00007f4e868c7349 in mozilla::dom::HTMLCanvasElement::GetContext (this=<optimized out>, aCx=<optimized out>, aContextId=..., aContextOptions=..., aContextOptions@entry=..., aRv=...)
    at /var/tmp/portage/www-client/firefox-45.0_beta2/work/firefox-45.0b2/dom/html/HTMLCanvasElement.cpp:884
#14 0x00007f4e866aee9c in mozilla::dom::HTMLCanvasElementBinding::getContext (cx=0xbf19120, obj=..., self=<optimized out>, args=...)
    at /var/tmp/portage/www-client/firefox-45.0_beta2/work/firefox-45.0b2/ff/dom/bindings/HTMLCanvasElementBinding.cpp:224
#15 0x00007f4e8676320e in mozilla::dom::GenericBindingMethod (cx=cx@entry=0xbf19120, argc=<optimized out>, vp=<optimized out>)
    at /var/tmp/portage/www-client/firefox-45.0_beta2/work/firefox-45.0b2/dom/bindings/BindingUtils.cpp:2718
#16 0x00007f4e87ecb366 in js::CallJSNative (cx=0xbf19120, native=0x7f4e867630be <mozilla::dom::GenericBindingMethod(JSContext*, unsigned int, JS::Value*)>, args=...)
    at /var/tmp/portage/www-client/firefox-45.0_beta2/work/firefox-45.0b2/js/src/jscntxtinlines.h:235
#17 0x00007f4e87ec2fdf in js::Invoke (cx=0xbf19120, args=..., construct=js::NO_CONSTRUCT) at /var/tmp/portage/www-client/firefox-45.0_beta2/work/firefox-45.0b2/js/src/vm/Interpreter.cpp:444
#18 0x00007f4e87eb41c5 in Interpret (cx=0xbf19120, state=...) at /var/tmp/portage/www-client/firefox-45.0_beta2/work/firefox-45.0b2/js/src/vm/Interpreter.cpp:2766
#19 0x00007f4e87ec2d37 in js::RunScript (cx=cx@entry=0xbf19120, state=...) at /var/tmp/portage/www-client/firefox-45.0_beta2/work/firefox-45.0b2/js/src/vm/Interpreter.cpp:391
#20 0x00007f4e87ec3230 in js::Invoke (cx=cx@entry=0xbf19120, args=..., construct=construct@entry=js::CONSTRUCT)
    at /var/tmp/portage/www-client/firefox-45.0_beta2/work/firefox-45.0b2/js/src/vm/Interpreter.cpp:462
#21 0x00007f4e87ec35e8 in InternalConstruct (cx=cx@entry=0xbf19120, args=...) at /var/tmp/portage/www-client/firefox-45.0_beta2/work/firefox-45.0b2/js/src/vm/Interpreter.cpp:523
#22 0x00007f4e87ec36a9 in js::Construct (cx=cx@entry=0xbf19120, fval=..., fval@entry=..., args=..., newTarget=..., newTarget@entry=..., rval=..., rval@entry=...)
    at /var/tmp/portage/www-client/firefox-45.0_beta2/work/firefox-45.0b2/js/src/vm/Interpreter.cpp:570
#23 0x00007f4e879da58f in js::jit::DoCallFallback (cx=0xbf19120, frame=<optimized out>, stub_=<optimized out>, argc=<optimized out>, vp=0x7ffe49a5a030, res=...)
    at /var/tmp/portage/www-client/firefox-45.0_beta2/work/firefox-45.0b2/js/src/jit/BaselineIC.cpp:6144
#24 0x00007f4e92d16951 in ?? ()
#25 0x00007ffe49a5a040 in ?? ()
#26 0x00007ffe49a59fe8 in ?? ()
#27 0x3ff0000000000000 in ?? ()
#28 0xfff9000000000000 in ?? ()
#29 0x00007f4e89e2aa00 in js::jit::DoSpreadCallFallbackInfo () from /usr/lib/firefox/libxul.so
#30 0x00007f4e7a25b6a0 in ?? ()
#31 0x00007f4e782968c3 in ?? ()
#32 0x0000000000000a02 in ?? ()
#33 0x00007ffe49a5a0a8 in ?? ()
#34 0x000000000dbf6af0 in ?? ()
#35 0x0000000000000001 in ?? ()
#36 0x00007ffe49a5a030 in ?? ()
#37 0xfffc7f4e6f78bd40 in ?? ()
#38 0xfff9000000000000 in ?? ()
#39 0xfffc7f4e6f7ec4c0 in ?? ()
#40 0xfffc7f4e6f78bd40 in ?? ()
#41 0x00007ffe49a5a0e8 in ?? ()
---Type <return> to continue, or q <return> to quit---
#42 0x000000000dbf6af0 in ?? ()
#43 0x00007f4e782752b1 in ?? ()
#44 0x0000000000001001 in ?? ()
#45 0xfffc7f4e6f78bd40 in ?? ()
#46 0xfffc7f4e6f7ec4c0 in ?? ()
#47 0xfff9000000000000 in ?? ()
#48 0xfffc7f4e6f78bd40 in ?? ()
#49 0xfffa000000000010 in ?? ()
#50 0xfffc7f4e6f7ec2e0 in ?? ()
#51 0xfff8800000000011 in ?? ()
#52 0x0000000000000000 in ?? ()
(gdb) continue