(gdb) run -S bin/test -1cvvv --layer=YUITestLayer
Starting program: /usr/bin/python2.6 -S bin/test -1cvvv --layer=YUITestLayer
[Thread debugging using libthread_db enabled]

Running tests at level 1
Running canonical.testing.layers.YUITestLayer tests:
  Set up canonical.testing.layers.BaseLayer in 0.109 seconds.
  Set up canonical.testing.layers.FunctionalLayer in 5.699 seconds.
  Set up canonical.testing.layers.YUITestLayer in 0.016 seconds.
  Running:
 lp/app/javascript/tests/test_lp_collapsibles.html[New Thread 0x7fffd5c22700 (LWP 30758)]
[New Thread 0x7fffd5321700 (LWP 30759)]
[New Thread 0x7fffcfb30700 (LWP 30760)]
[New Thread 0x7fffcc487700 (LWP 30761)]
[New Thread 0x7fffcbc86700 (LWP 30762)]
[Thread 0x7fffcc487700 (LWP 30761) exited]
[Thread 0x7fffcbc86700 (LWP 30762) exited]
 (43.374 s)
 lp/app/javascript/tests/test_picker.html[New Thread 0x7fffcbc86700 (LWP 30763)]
[New Thread 0x7fffcc487700 (LWP 30764)]
 (0.866 s)
 lp/app/javascript/tests/test_lp_client.html (0.261 s)
 lp/app/javascript/tests/test_hide_comment.html (0.116 s)
 lp/app/javascript/tests/test_lp_names.html[Thread 0x7fffcc487700 (LWP 30764) exited]
[Thread 0x7fffcbc86700 (LWP 30763) exited]
 (0.404 s)
 lp/app/javascript/tests/test_multicheckboxwidget.html[New Thread 0x7fffcbc86700 (LWP 30765)]
 (0.414 s)
 lp/app/javascript/tests/test_personpicker.html
Program received signal SIGSEGV, Segmentation fault.
0x0000000000000000 in ?? ()
(gdb) 
(gdb) bt
#0  0x0000000000000000 in ?? ()
#1  0x00007fffd9f53849 in ctiTrampoline () from /usr/lib/libwebkitgtk-3.0.so.0
#2  0x00007fffd9f1b02f in execute (this=0x7fffd532dca8, callFrame=0x200, function=0xffff000000000002, callType=<value optimised out>, 
    callData=<value optimised out>, thisValue=<value optimised out>, args=...) at ../Source/JavaScriptCore/jit/JITCode.h:77
#3  JSC::Interpreter::executeCall (this=0x7fffd532dca8, callFrame=0x200, function=0xffff000000000002, callType=<value optimised out>, 
    callData=<value optimised out>, thisValue=<value optimised out>, args=...) at ../Source/JavaScriptCore/interpreter/Interpreter.cpp:844
#4  0x00007fffd9fa4cbd in JSC::call (exec=<value optimised out>, functionObject=<value optimised out>, callType=<value optimised out>, 
    callData=<value optimised out>, thisValue=<value optimised out>, args=<value optimised out>) at ../Source/JavaScriptCore/runtime/CallData.cpp:38
#5  0x00007fffd93ccf45 in call (this=<value optimised out>, globalObject=0x7fffcb36cdd0, thisValue=..., context=0x7fffc57f5860)
    at ../Source/WebCore/bindings/js/JSMainThreadExecState.h:48
#6  WebCore::ScheduledAction::executeFunctionInContext (this=<value optimised out>, globalObject=0x7fffcb36cdd0, thisValue=..., context=0x7fffc57f5860)
    at ../Source/WebCore/bindings/js/ScheduledAction.cpp:106
#7  0x00007fffd93cd543 in WebCore::ScheduledAction::execute (this=<value optimised out>, document=0x7fffc57f5800)
    at ../Source/WebCore/bindings/js/ScheduledAction.cpp:128
#8  0x00007fffd977000c in WebCore::DOMTimer::fired (this=0x7fffc4c45208) at ../Source/WebCore/page/DOMTimer.cpp:135
#9  0x00007fffd982cb82 in WebCore::ThreadTimers::sharedTimerFiredInternal (this=0x7fffd5375a28) at ../Source/WebCore/platform/ThreadTimers.cpp:112
#10 0x00007fffd9244b32 in WebCore::timeout_cb () at ../Source/WebCore/platform/gtk/SharedTimerGtk.cpp:49
#11 0x00007fffdf4384eb in g_timeout_dispatch (source=0xd98b630, callback=<value optimised out>, user_data=<value optimised out>)
    at /build/buildd/glib2.0-2.28.6/./glib/gmain.c:3882
#12 0x00007fffdf436bcd in g_main_dispatch (context=0xee2a300) at /build/buildd/glib2.0-2.28.6/./glib/gmain.c:2440
#13 g_main_context_dispatch (context=0xee2a300) at /build/buildd/glib2.0-2.28.6/./glib/gmain.c:3013
#14 0x00007fffdf4373a8 in g_main_context_iterate (context=0xee2a300, block=<value optimised out>, dispatch=1, self=<value optimised out>)
    at /build/buildd/glib2.0-2.28.6/./glib/gmain.c:3091
#15 0x00007fffdf4379f2 in g_main_loop_run (loop=0xdce7050) at /build/buildd/glib2.0-2.28.6/./glib/gmain.c:3299
#16 0x00007fffde166d9d in gtk_main () at /build/buildd/gtk+3.0-3.0.8/./gtk/gtkmain.c:1358
#17 0x00007fffdf8edaa0 in ffi_call_unix64 () at ../src/x86/unix64.S:75
#18 0x00007fffdf8ed483 in ffi_call (cif=0x7fffffffb990, fn=0x7fffde166d10 <gtk_main>, rvalue=<value optimised out>, avalue=<value optimised out>)
    at ../src/x86/ffi64.c:484
#19 0x00007fffdff4e1d8 in _g_callable_info_invoke (info=<value optimised out>, function=0x7fffde166d10, in_args=0x0, n_in_args=0, out_args=0x0, 
    n_out_args=0, return_value=0x7fffffffbb90, is_method=0, throws=0, error=0x7fffffffbbb0) at girepository/gicallableinfo.c:496
#20 0x00007fffdff4f40e in g_function_info_invoke (info=0x7565280, in_args=0x0, n_in_args=0, out_args=0x0, n_out_args=0, return_value=0x7fffffffbb90, 
    error=0x7fffffffbbb0) at girepository/gifunctioninfo.c:273
#21 0x00007fffe0180bc5 in _invoke_function (self=0x10ae2350, py_args=0x7ffff7f8b050, kwargs=<value optimised out>)
    at /build/buildd/pygobject-2.28.3/gi/pygi-invoke.c:613
#22 _wrap_g_callable_info_invoke (self=0x10ae2350, py_args=0x7ffff7f8b050, kwargs=<value optimised out>)
    at /build/buildd/pygobject-2.28.3/gi/pygi-invoke.c:1015
#23 0x00000000004a4073 in ext_do_call (f=<value optimised out>, throwflag=<value optimised out>) at ../Python/ceval.c:4060
#24 PyEval_EvalFrameEx (f=<value optimised out>, throwflag=<value optimised out>) at ../Python/ceval.c:2452
#25 0x00000000004a5e62 in PyEval_EvalCodeEx (co=0xa052a80, globals=<value optimised out>, locals=<value optimised out>, args=<value optimised out>, 
    argcount=0, kws=0x10d69e28, kwcount=0, defs=0x0, defcount=0, closure=0x10ae2290) at ../Python/ceval.c:3000
#26 0x00000000004a3ee8 in fast_function (f=<value optimised out>, throwflag=<value optimised out>) at ../Python/ceval.c:3846
#27 call_function (f=<value optimised out>, throwflag=<value optimised out>) at ../Python/ceval.c:3771
#28 PyEval_EvalFrameEx (f=<value optimised out>, throwflag=<value optimised out>) at ../Python/ceval.c:2412
#29 0x00000000004a5e62 in PyEval_EvalCodeEx (co=0x127fa918, globals=<value optimised out>, locals=<value optimised out>, args=<value optimised out>, 
    argcount=2, kws=0x11825f58, kwcount=1, defs=0x14420ea8, defcount=1, closure=0x0) at ../Python/ceval.c:3000
#30 0x00000000004a3ee8 in fast_function (f=<value optimised out>, throwflag=<value optimised out>) at ../Python/ceval.c:3846
#31 call_function (f=<value optimised out>, throwflag=<value optimised out>) at ../Python/ceval.c:3771
#32 PyEval_EvalFrameEx (f=<value optimised out>, throwflag=<value optimised out>) at ../Python/ceval.c:2412
#33 0x00000000004a5e62 in PyEval_EvalCodeEx (co=0x25db5d0, globals=<value optimised out>, locals=<value optimised out>, args=<value optimised out>, 
    argcount=1, kws=0x8f9f438, kwcount=0, defs=0x0, defcount=0, closure=0x0) at ../Python/ceval.c:3000
#34 0x00000000004a3ee8 in fast_function (f=<value optimised out>, throwflag=<value optimised out>) at ../Python/ceval.c:3846
#35 call_function (f=<value optimised out>, throwflag=<value optimised out>) at ../Python/ceval.c:3771
#36 PyEval_EvalFrameEx (f=<value optimised out>, throwflag=<value optimised out>) at ../Python/ceval.c:2412
#37 0x00000000004a5e62 in PyEval_EvalCodeEx (co=0x243b300, globals=<value optimised out>, locals=<value optimised out>, args=<value optimised out>, 
    argcount=2, kws=0x10a28570, kwcount=0, defs=0x0, defcount=0, closure=0x0) at ../Python/ceval.c:3000
#38 0x000000000053ebec in function_call (func=0x24801b8, arg=0xc128e18, kw=0x27f7920) at ../Objects/funcobject.c:524
#39 0x00000000004217d7 in PyObject_Call (func=0x24801b8, arg=<value optimised out>, kw=<value optimised out>) at ../Objects/abstract.c:2492
#40 0x00000000004a2a0f in ext_do_call (f=<value optimised out>, throwflag=<value optimised out>) at ../Python/ceval.c:4063
#41 PyEval_EvalFrameEx (f=<value optimised out>, throwflag=<value optimised out>) at ../Python/ceval.c:2452
#42 0x00000000004a5e62 in PyEval_EvalCodeEx (co=0x240db70, globals=<value optimised out>, locals=<value optimised out>, args=<value optimised out>, 
    argcount=3, kws=0x11459ef8, kwcount=0, defs=0x0, defcount=0, closure=0x0) at ../Python/ceval.c:3000
#43 0x00000000004a3ee8 in fast_function (f=<value optimised out>, throwflag=<value optimised out>) at ../Python/ceval.c:3846
#44 call_function (f=<value optimised out>, throwflag=<value optimised out>) at ../Python/ceval.c:3771
#45 PyEval_EvalFrameEx (f=<value optimised out>, throwflag=<value optimised out>) at ../Python/ceval.c:2412
#46 0x00000000004a5556 in fast_function (f=<value optimised out>, throwflag=<value optimised out>) at ../Python/ceval.c:3836
#47 call_function (f=<value optimised out>, throwflag=<value optimised out>) at ../Python/ceval.c:3771
#48 PyEval_EvalFrameEx (f=<value optimised out>, throwflag=<value optimised out>) at ../Python/ceval.c:2412
#49 0x00000000004a5556 in fast_function (f=<value optimised out>, throwflag=<value optimised out>) at ../Python/ceval.c:3836
#50 call_function (f=<value optimised out>, throwflag=<value optimised out>) at ../Python/ceval.c:3771
#51 PyEval_EvalFrameEx (f=<value optimised out>, throwflag=<value optimised out>) at ../Python/ceval.c:2412
#52 0x00000000004a5556 in fast_function (f=<value optimised out>, throwflag=<value optimised out>) at ../Python/ceval.c:3836
#53 call_function (f=<value optimised out>, throwflag=<value optimised out>) at ../Python/ceval.c:3771
#54 PyEval_EvalFrameEx (f=<value optimised out>, throwflag=<value optimised out>) at ../Python/ceval.c:2412
#55 0x00000000004a5e62 in PyEval_EvalCodeEx (co=0x240d198, globals=<value optimised out>, locals=<value optimised out>, args=<value optimised out>, 
    argcount=2, kws=0x8a8f0d8, kwcount=0, defs=0x242ed28, defcount=1, closure=0x0) at ../Python/ceval.c:3000
#56 0x00000000004a3ee8 in fast_function (f=<value optimised out>, throwflag=<value optimised out>) at ../Python/ceval.c:3846
#57 call_function (f=<value optimised out>, throwflag=<value optimised out>) at ../Python/ceval.c:3771
#58 PyEval_EvalFrameEx (f=<value optimised out>, throwflag=<value optimised out>) at ../Python/ceval.c:2412
#59 0x00000000004a5e62 in PyEval_EvalCodeEx (co=0x243b288, globals=<value optimised out>, locals=<value optimised out>, args=<value optimised out>, 
    argcount=2, kws=0x1198fc70, kwcount=0, defs=0x247c468, defcount=1, closure=0x0) at ../Python/ceval.c:3000
#60 0x000000000053ebec in function_call (func=0x2480140, arg=0x14132b90, kw=0xa6c6f40) at ../Objects/funcobject.c:524
#61 0x00000000004217d7 in PyObject_Call (func=0x2480140, arg=<value optimised out>, kw=<value optimised out>) at ../Objects/abstract.c:2492
#62 0x00000000004a2a0f in ext_do_call (f=<value optimised out>, throwflag=<value optimised out>) at ../Python/ceval.c:4063
#63 PyEval_EvalFrameEx (f=<value optimised out>, throwflag=<value optimised out>) at ../Python/ceval.c:2452
#64 0x00000000004a5e62 in PyEval_EvalCodeEx (co=0x227fe40, globals=<value optimised out>, locals=<value optimised out>, args=<value optimised out>, 
    argcount=2, kws=0x0, kwcount=0, defs=0x0, defcount=0, closure=0x0) at ../Python/ceval.c:3000
#65 0x000000000053eaf7 in function_call (func=0x2290488, arg=0x141322d8, kw=0x0) at ../Objects/funcobject.c:524
#66 0x00000000004217d7 in PyObject_Call (func=0x2290488, arg=<value optimised out>, kw=<value optimised out>) at ../Objects/abstract.c:2492
#67 0x000000000042b19f in instancemethod_call (func=0x2290488, arg=0x141322d8, kw=0x0) at ../Objects/classobject.c:2579
#68 0x00000000004217d7 in PyObject_Call (func=0xc501af0, arg=<value optimised out>, kw=<value optimised out>) at ../Objects/abstract.c:2492
#69 0x000000000047664c in slot_tp_call (self=0x9356d10, args=0x12bf7fd0, kwds=0x0) at ../Objects/typeobject.c:5372
#70 0x00000000004217d7 in PyObject_Call (func=0x9356d10, arg=<value optimised out>, kw=<value optimised out>) at ../Objects/abstract.c:2492
#71 0x00000000004a3754 in do_call (f=<value optimised out>, throwflag=<value optimised out>) at ../Python/ceval.c:3968
#72 call_function (f=<value optimised out>, throwflag=<value optimised out>) at ../Python/ceval.c:3773
#73 PyEval_EvalFrameEx (f=<value optimised out>, throwflag=<value optimised out>) at ../Python/ceval.c:2412
#74 0x00000000004a5556 in fast_function (f=<value optimised out>, throwflag=<value optimised out>) at ../Python/ceval.c:3836
#75 call_function (f=<value optimised out>, throwflag=<value optimised out>) at ../Python/ceval.c:3771
#76 PyEval_EvalFrameEx (f=<value optimised out>, throwflag=<value optimised out>) at ../Python/ceval.c:2412
#77 0x00000000004a5556 in fast_function (f=<value optimised out>, throwflag=<value optimised out>) at ../Python/ceval.c:3836
#78 call_function (f=<value optimised out>, throwflag=<value optimised out>) at ../Python/ceval.c:3771
#79 PyEval_EvalFrameEx (f=<value optimised out>, throwflag=<value optimised out>) at ../Python/ceval.c:2412
#80 0x00000000004a5556 in fast_function (f=<value optimised out>, throwflag=<value optimised out>) at ../Python/ceval.c:3836
#81 call_function (f=<value optimised out>, throwflag=<value optimised out>) at ../Python/ceval.c:3771
#82 PyEval_EvalFrameEx (f=<value optimised out>, throwflag=<value optimised out>) at ../Python/ceval.c:2412
#83 0x00000000004a5556 in fast_function (f=<value optimised out>, throwflag=<value optimised out>) at ../Python/ceval.c:3836
#84 call_function (f=<value optimised out>, throwflag=<value optimised out>) at ../Python/ceval.c:3771
#85 PyEval_EvalFrameEx (f=<value optimised out>, throwflag=<value optimised out>) at ../Python/ceval.c:2412
#86 0x00000000004a5e62 in PyEval_EvalCodeEx (co=0x29febe8, globals=<value optimised out>, locals=<value optimised out>, args=<value optimised out>, 
    argcount=2, kws=0x44afd50, kwcount=1, defs=0x236f298, defcount=3, closure=0x0) at ../Python/ceval.c:3000
#87 0x00000000004a3ee8 in fast_function (f=<value optimised out>, throwflag=<value optimised out>) at ../Python/ceval.c:3846
#88 call_function (f=<value optimised out>, throwflag=<value optimised out>) at ../Python/ceval.c:3771
#89 PyEval_EvalFrameEx (f=<value optimised out>, throwflag=<value optimised out>) at ../Python/ceval.c:2412
#90 0x00000000004a5e62 in PyEval_EvalCodeEx (co=0x29f6468, globals=<value optimised out>, locals=<value optimised out>, args=<value optimised out>, 
    argcount=1, kws=0x8f5558, kwcount=0, defs=0x23c02e8, defcount=3, closure=0x0) at ../Python/ceval.c:3000
#91 0x00000000004a3ee8 in fast_function (f=<value optimised out>, throwflag=<value optimised out>) at ../Python/ceval.c:3846
#92 call_function (f=<value optimised out>, throwflag=<value optimised out>) at ../Python/ceval.c:3771
#93 PyEval_EvalFrameEx (f=<value optimised out>, throwflag=<value optimised out>) at ../Python/ceval.c:2412
#94 0x00000000004a5e62 in PyEval_EvalCodeEx (co=0x7ffff7f54d50, globals=<value optimised out>, locals=<value optimised out>, args=<value optimised out>, 
    argcount=0, kws=0x0, kwcount=0, defs=0x0, defcount=0, closure=0x0) at ../Python/ceval.c:3000
#95 0x00000000004a5f32 in PyEval_EvalCode (co=<value optimised out>, globals=<value optimised out>, locals=<value optimised out>) at ../Python/ceval.c:541
#96 0x00000000004cb2d4 in run_mod (fp=0x8e4e60, filename=<value optimised out>, closeit=1, flags=0x7fffffffe0e0) at ../Python/pythonrun.c:1351
#97 PyRun_FileExFlags (fp=0x8e4e60, filename=<value optimised out>, closeit=1, flags=0x7fffffffe0e0) at ../Python/pythonrun.c:1337
#98 PyRun_SimpleFileExFlags (fp=0x8e4e60, filename=<value optimised out>, closeit=1, flags=0x7fffffffe0e0) at ../Python/pythonrun.c:941
#99 0x000000000041801d in Py_Main (argc=<value optimised out>, argv=<value optimised out>) at ../Modules/main.c:577
#100 0x00007ffff69c2eff in __libc_start_main (main=0x4173c0 <main>, argc=5, ubp_av=0x7fffffffe208, init=<value optimised out>, fini=<value optimised out>, 
    rtld_fini=<value optimised out>, stack_end=0x7fffffffe1f8) at libc-start.c:226
#101 0x00000000004172f9 in _start ()