test_pcolormesh hangs

[richbwood]

Hi,

I am running matplotlib-1.2.0.tar.gz

When running the tests test_pcolormesh hangs. The relevent part of the test is:

xldn0553vdap:build% python -c "import matplotlib; matplotlib.test(verbosity=2)"
matplotlib.tests.test_artist.test_collection_transform_of_none.test ... ok
matplotlib.tests.test_artist.test_patch_transform_of_none.test ... ok
matplotlib.tests.test_axes.test_arc_ellipse.test ... ok
matplotlib.tests.test_axes.test_arc_ellipse.test ... ok
matplotlib.tests.test_axes.test_arc_ellipse.test ... KNOWNFAIL: Cannot compare svg files on this system
cut test for brevity
matplotlib.tests.test_axes.test_nonfinite_limits.test ... KNOWNFAIL: Cannot compare svg files on this system
matplotlib.tests.test_axes.test_pcolormesh.test ... ok
matplotlib.tests.test_axes.test_pcolormesh.test ...
Hangs here

excluding this test and the tests pass (apart from known failures):
nosetests -e "test_pcolormesh" -v matplotlib

please let me know what other information I can provide.
Thank you.

[mdboom]

What platform and versions of Python and Numpy are you running?

If you're able, running this inside of gdb and then "Ctrl+C" ing when it hangs and typing "bt" to get a backtrace might help us see where it is getting stuck.

[richbwood]

Hi mdboom, thank you for the quick response.

Here is what I have:

Platform

uname -a
Linux xldn5103pap 2.6.18-194.11.4.el5 #1 SMP Fri Sep 17 04:57:05 EDT 2010 x86_64 x86_64 x86_64 GNU/Linux

Python

Python 2.7 (r27:82500, Dec 19 2012, 13:10:53)
[GCC 4.7.2] on linux2

Numpy

import numpy
numpy.version
'1.6.2'

Backtrace

matplotlib.tests.test_axes.test_pcolormesh.test ... ok
matplotlib.tests.test_axes.test_pcolormesh.test ...
Program received signal SIGINT, Interrupt.
0x0000003d4d4c5ff0 in __read_nocancel () from /lib64/libc.so.6
(gdb) bt
#0 0x0000003d4d4c5ff0 in __read_nocancel () from /lib64/libc.so.6
#1 0x0000003d4d46b853 in _IO_file_xsgetn_internal () from /lib64/libc.so.6
#2 0x0000003d4d461c82 in fread () from /lib64/libc.so.6
#3 0x0000000000430bc8 in Py_UniversalNewlineFread (fobj=0x1a8a9c0, stream=0x12bd260, n=1, buf=) at Objects/fileobject.c:2724
#4 file_read (f=0x1a8a9c0, args=) at Objects/fileobject.c:1076
#5 0x00000000004a2583 in call_function (oparg=, pp_stack=0x7fffffff6930) at Python/ceval.c:4012
#6 PyEval_EvalFrameEx (f=f@entry=0x2575ff0, throwflag=throwflag@entry=0) at Python/ceval.c:2665
#7 0x000000000049cbbb in PyEval_EvalCodeEx (co=, globals=, locals=locals@entry=0x0, args=, argcount=argcount@entry=3, kws=0x254aa18, kwcount=0, defs=0x13d4ae8, defcount=1, closure=0x0)
at Python/ceval.c:3252
#8 0x00000000004a17ce in fast_function (nk=, na=3, n=, pp_stack=0x7fffffff6be0, func=0x1b2f2a8) at Python/ceval.c:4108
#9 call_function (oparg=, pp_stack=0x7fffffff6be0) at Python/ceval.c:4033
#10 PyEval_EvalFrameEx (f=f@entry=0x254a860, throwflag=throwflag@entry=0) at Python/ceval.c:2665
#11 0x000000000049cbbb in PyEval_EvalCodeEx (co=, globals=, locals=locals@entry=0x0, args=, argcount=argcount@entry=2, kws=0x2548818, kwcount=0, defs=0x0, defcount=0, closure=0x1b14f90)
at Python/ceval.c:3252
#12 0x00000000004a17ce in fast_function (nk=, na=2, n=, pp_stack=0x7fffffff6e90, func=0x1b2f488) at Python/ceval.c:4108
#13 call_function (oparg=, pp_stack=0x7fffffff6e90) at Python/ceval.c:4033
#14 PyEval_EvalFrameEx (f=f@entry=0x2548640, throwflag=throwflag@entry=0) at Python/ceval.c:2665
#15 0x000000000049cbbb in PyEval_EvalCodeEx (co=, globals=, locals=locals@entry=0x0, args=, argcount=argcount@entry=2, kws=0x254dc90, kwcount=0, defs=0x0, defcount=0, closure=0x0)
at Python/ceval.c:3252
#16 0x00000000004a17ce in fast_function (nk=, na=2, n=, pp_stack=0x7fffffff7140, func=0x1b2f758) at Python/ceval.c:4108
#17 call_function (oparg=, pp_stack=0x7fffffff7140) at Python/ceval.c:4033
#18 PyEval_EvalFrameEx (f=f@entry=0x254da90, throwflag=throwflag@entry=0) at Python/ceval.c:2665
#19 0x000000000049cbbb in PyEval_EvalCodeEx (co=, globals=, locals=locals@entry=0x0, args=, argcount=argcount@entry=3, kws=0x214d320, kwcount=1, defs=0x1b300a8, defcount=1, closure=0x0)
at Python/ceval.c:3252
#20 0x00000000004a17ce in fast_function (nk=, na=3, n=, pp_stack=0x7fffffff73f0, func=0x1b2f938) at Python/ceval.c:4108
#21 call_function (oparg=, pp_stack=0x7fffffff73f0) at Python/ceval.c:4033
#22 PyEval_EvalFrameEx (f=f@entry=0x214d160, throwflag=throwflag@entry=0) at Python/ceval.c:2665
#23 0x000000000049cbbb in PyEval_EvalCodeEx (co=, globals=, locals=locals@entry=0x0, args=args@entry=0x2aaaaaaca068, argcount=0, kws=kws@entry=0x2aaaaaaca068, kwcount=kwcount@entry=0, defs=defs@entry=0x0,
defcount=defcount@entry=0, closure=0x95bcec0) at Python/ceval.c:3252
#24 0x0000000000505a37 in function_call (func=0xa0805f0, arg=0x2aaaaaaca050, kw=0x9deecf0) at Objects/funcobject.c:526
#25 0x000000000041f26a in PyObject_Call (func=func@entry=0xa0805f0, arg=, kw=kw@entry=0x9deecf0) at Objects/abstract.c:2522
#26 0x000000000049f38d in ext_do_call (nk=0, na=, flags=, pp_stack=0x7fffffff7770, func=0xa0805f0) at Python/ceval.c:4325
#27 PyEval_EvalFrameEx (f=f@entry=0x234cb50, throwflag=throwflag@entry=0) at Python/ceval.c:2704
#28 0x000000000049cbbb in PyEval_EvalCodeEx (co=, globals=, locals=locals@entry=0x0, args=args@entry=0x2aaaaaaca068, argcount=0, kws=kws@entry=0x0, kwcount=kwcount@entry=0, defs=defs@entry=0x0,
defcount=defcount@entry=0, closure=0x9cfd578) at Python/ceval.c:3252
#29 0x0000000000505926 in function_call (func=0xa080578, arg=0x2aaaaaaca050, kw=0x0) at Objects/funcobject.c:526
#30 0x000000000041f26a in PyObject_Call (func=func@entry=0xa080578, arg=, kw=kw@entry=0x0) at Objects/abstract.c:2522
#31 0x000000000049f38d in ext_do_call (nk=0, na=, flags=, pp_stack=0x7fffffff7af0, func=0xa080578) at Python/ceval.c:4325
#32 PyEval_EvalFrameEx (f=, throwflag=throwflag@entry=0) at Python/ceval.c:2704
#33 0x00000000004a263f in fast_function (nk=, na=1, n=, pp_stack=0x7fffffff7cf0, func=0x1072230) at Python/ceval.c:4098
#34 call_function (oparg=, pp_stack=0x7fffffff7cf0) at Python/ceval.c:4033
#35 PyEval_EvalFrameEx (f=f@entry=0x21492b0, throwflag=throwflag@entry=0) at Python/ceval.c:2665
#36 0x000000000049cbbb in PyEval_EvalCodeEx (co=, globals=, locals=locals@entry=0x0, args=args@entry=0x9cee650, argcount=2, kws=kws@entry=0x2aaaaaaca068, kwcount=kwcount@entry=0,
defs=defs@entry=0x2aaab186d468, defcount=defcount@entry=1, closure=0x0) at Python/ceval.c:3252
#37 0x0000000000505a37 in function_call (func=0x2aaab1872c08, arg=0x9cee638, kw=0x9e15c70) at Objects/funcobject.c:526
#38 0x000000000041f26a in PyObject_Call (func=func@entry=0x2aaab1872c08, arg=, kw=kw@entry=0x9e15c70) at Objects/abstract.c:2522
#39 0x000000000049f38d in ext_do_call (nk=0, na=, flags=, pp_stack=0x7fffffff8070, func=0x2aaab1872c08) at Python/ceval.c:4325
#40 PyEval_EvalFrameEx (f=f@entry=0x21490d0, throwflag=throwflag@entry=0) at Python/ceval.c:2704
#41 0x000000000049cbbb in PyEval_EvalCodeEx (co=, globals=, locals=locals@entry=0x0, args=args@entry=0x9ceecc8, argcount=2, kws=kws@entry=0x0, kwcount=kwcount@entry=0, defs=defs@entry=0x0,
defcount=defcount@entry=0, closure=0x0) at Python/ceval.c:3252
#42 0x0000000000505926 in function_call (func=0x2aaab1872cf8, arg=0x9ceecb0, kw=0x0) at Objects/funcobject.c:526
#43 0x000000000041f26a in PyObject_Call (func=func@entry=0x2aaab1872cf8, arg=arg@entry=0x9ceecb0, kw=kw@entry=0x0) at Objects/abstract.c:2522
#44 0x0000000000423750 in instancemethod_call (func=0x2aaab1872cf8, arg=0x9ceecb0, kw=0x0) at Objects/classobject.c:2578
#45 0x000000000041f26a in PyObject_Call (func=func@entry=0x9158230, arg=arg@entry=0x9941610, kw=kw@entry=0x0) at Objects/abstract.c:2522
#46 0x0000000000471bfc in slot_tp_call (self=0x9ce2190, args=0x9941610, kwds=0x0) at Objects/typeobject.c:5388
#47 0x000000000041f26a in PyObject_Call (func=func@entry=0x9ce2190, arg=arg@entry=0x9941610, kw=kw@entry=0x0) at Objects/abstract.c:2522
#48 0x000000000049efc5 in do_call (nk=, na=, pp_stack=0x7fffffff86e0, func=0x9ce2190) at Python/ceval.c:4230
#49 call_function (oparg=, pp_stack=0x7fffffff86e0) at Python/ceval.c:4035
#50 PyEval_EvalFrameEx (f=, throwflag=throwflag@entry=0) at Python/ceval.c:2665
#51 0x00000000004a263f in fast_function (nk=, na=2, n=, pp_stack=0x7fffffff88e0, func=0x10720c8) at Python/ceval.c:4098
#52 call_function (oparg=, pp_stack=0x7fffffff88e0) at Python/ceval.c:4033
#53 PyEval_EvalFrameEx (f=f@entry=0xe2b620, throwflag=throwflag@entry=0) at Python/ceval.c:2665
#54 0x000000000049cbbb in PyEval_EvalCodeEx (co=, globals=, locals=locals@entry=0x0, args=args@entry=0x9d06968, argcount=2, kws=kws@entry=0x2aaaaaaca068, kwcount=kwcount@entry=0, defs=defs@entry=0x0,
defcount=defcount@entry=0, closure=0x0) at Python/ceval.c:3252
#55 0x0000000000505a37 in function_call (func=0x1072050, arg=0x9d06950, kw=0x9e0cbf0) at Objects/funcobject.c:526
#56 0x000000000041f26a in PyObject_Call (func=func@entry=0x1072050, arg=, kw=kw@entry=0x9e0cbf0) at Objects/abstract.c:2522
#57 0x000000000049f38d in ext_do_call (nk=0, na=, flags=, pp_stack=0x7fffffff8c60, func=0x1072050) at Python/ceval.c:4325
#58 PyEval_EvalFrameEx (f=f@entry=0xe2b440, throwflag=throwflag@entry=0) at Python/ceval.c:2704
#59 0x000000000049cbbb in PyEval_EvalCodeEx (co=, globals=, locals=locals@entry=0x0, args=args@entry=0x9d0b068, argcount=2, kws=kws@entry=0x0, kwcount=kwcount@entry=0, defs=defs@entry=0x0,
defcount=defcount@entry=0, closure=0x0) at Python/ceval.c:3252
#60 0x0000000000505926 in function_call (func=0x106ab90, arg=0x9d0b050, kw=0x0) at Objects/funcobject.c:526
#61 0x000000000041f26a in PyObject_Call (func=func@entry=0x106ab90, arg=arg@entry=0x9d0b050, kw=kw@entry=0x0) at Objects/abstract.c:2522
#62 0x0000000000423750 in instancemethod_call (func=0x106ab90, arg=0x9d0b050, kw=0x0) at Objects/classobject.c:2578
#63 0x000000000041f26a in PyObject_Call (func=func@entry=0x7ccbdc0, arg=arg@entry=0x95ce1d0, kw=kw@entry=0x0) at Objects/abstract.c:2522
#64 0x0000000000471bfc in slot_tp_call (self=0xa076e10, args=0x95ce1d0, kwds=0x0) at Objects/typeobject.c:5388
#65 0x000000000041f26a in PyObject_Call (func=func@entry=0xa076e10, arg=arg@entry=0x95ce1d0, kw=kw@entry=0x0) at Objects/abstract.c:2522
#66 0x000000000049efc5 in do_call (nk=, na=, pp_stack=0x7fffffff92d0, func=0xa076e10) at Python/ceval.c:4230
#67 call_function (oparg=, pp_stack=0x7fffffff92d0) at Python/ceval.c:4035
#68 PyEval_EvalFrameEx (f=f@entry=0x8cdac20, throwflag=throwflag@entry=0) at Python/ceval.c:2665
#69 0x000000000049cbbb in PyEval_EvalCodeEx (co=, globals=, locals=locals@entry=0x0, args=args@entry=0x9d00bf0, argcount=2, kws=kws@entry=0x2aaaaaaca068, kwcount=kwcount@entry=0, defs=defs@entry=0x0,
defcount=defcount@entry=0, closure=0x0) at Python/ceval.c:3252
#70 0x0000000000505a37 in function_call (func=0x1087c08, arg=0x9d00bd8, kw=0x9c43860) at Objects/funcobject.c:526
#71 0x000000000041f26a in PyObject_Call (func=func@entry=0x1087c08, arg=, kw=kw@entry=0x9c43860) at Objects/abstract.c:2522
#72 0x000000000049f38d in ext_do_call (nk=0, na=, flags=, pp_stack=0x7fffffff9650, func=0x1087c08) at Python/ceval.c:4325
#73 PyEval_EvalFrameEx (f=f@entry=0x9dcd8e0, throwflag=throwflag@entry=0) at Python/ceval.c:2704
#74 0x000000000049cbbb in PyEval_EvalCodeEx (co=, globals=, locals=locals@entry=0x0, args=args@entry=0x9d06de8, argcount=2, kws=kws@entry=0x0, kwcount=kwcount@entry=0, defs=defs@entry=0x0,
defcount=defcount@entry=0, closure=0x0) at Python/ceval.c:3252
#75 0x0000000000505926 in function_call (func=0x1087aa0, arg=0x9d06dd0, kw=0x0) at Objects/funcobject.c:526
#76 0x000000000041f26a in PyObject_Call (func=func@entry=0x1087aa0, arg=arg@entry=0x9d06dd0, kw=kw@entry=0x0) at Objects/abstract.c:2522
#77 0x0000000000423750 in instancemethod_call (func=0x1087aa0, arg=0x9d06dd0, kw=0x0) at Objects/classobject.c:2578
#78 0x000000000041f26a in PyObject_Call (func=func@entry=0x20c93c0, arg=arg@entry=0x9d12450, kw=kw@entry=0x0) at Objects/abstract.c:2522
#79 0x0000000000471bfc in slot_tp_call (self=0x1b4afd0, args=0x9d12450, kwds=0x0) at Objects/typeobject.c:5388
#80 0x000000000041f26a in PyObject_Call (func=func@entry=0x1b4afd0, arg=arg@entry=0x9d12450, kw=kw@entry=0x0) at Objects/abstract.c:2522
#81 0x000000000049efc5 in do_call (nk=, na=, pp_stack=0x7fffffff9cc0, func=0x1b4afd0) at Python/ceval.c:4230
#82 call_function (oparg=, pp_stack=0x7fffffff9cc0) at Python/ceval.c:4035
#83 PyEval_EvalFrameEx (f=f@entry=0x99c28d0, throwflag=throwflag@entry=0) at Python/ceval.c:2665
#84 0x000000000049cbbb in PyEval_EvalCodeEx (co=, globals=, locals=locals@entry=0x0, args=args@entry=0x20ca1d0, argcount=2, kws=kws@entry=0x2aaaaaaca068, kwcount=kwcount@entry=0, defs=defs@entry=0x0,
defcount=defcount@entry=0, closure=0x0) at Python/ceval.c:3252
#85 0x0000000000505a37 in function_call (func=0x1087c08, arg=0x20ca1b8, kw=0x9c31400) at Objects/funcobject.c:526
#86 0x000000000041f26a in PyObject_Call (func=func@entry=0x1087c08, arg=, kw=kw@entry=0x9c31400) at Objects/abstract.c:2522
#87 0x000000000049f38d in ext_do_call (nk=0, na=, flags=, pp_stack=0x7fffffffa040, func=0x1087c08) at Python/ceval.c:4325
#88 PyEval_EvalFrameEx (f=f@entry=0x8e98e50, throwflag=throwflag@entry=0) at Python/ceval.c:2704
#89 0x000000000049cbbb in PyEval_EvalCodeEx (co=, globals=, locals=locals@entry=0x0, args=args@entry=0x20ca0b0, argcount=2, kws=kws@entry=0x0, kwcount=kwcount@entry=0, defs=defs@entry=0x0,
defcount=defcount@entry=0, closure=0x0) at Python/ceval.c:3252
#90 0x0000000000505926 in function_call (func=0x1087aa0, arg=0x20ca098, kw=0x0) at Objects/funcobject.c:526
#91 0x000000000041f26a in PyObject_Call (func=func@entry=0x1087aa0, arg=arg@entry=0x20ca098, kw=kw@entry=0x0) at Objects/abstract.c:2522
#92 0x0000000000423750 in instancemethod_call (func=0x1087aa0, arg=0x20ca098, kw=0x0) at Objects/classobject.c:2578
#93 0x000000000041f26a in PyObject_Call (func=func@entry=0x20c9230, arg=arg@entry=0x20c7a10, kw=kw@entry=0x0) at Objects/abstract.c:2522
#94 0x0000000000471bfc in slot_tp_call (self=0x1bef050, args=0x20c7a10, kwds=0x0) at Objects/typeobject.c:5388
#95 0x000000000041f26a in PyObject_Call (func=func@entry=0x1bef050, arg=arg@entry=0x20c7a10, kw=kw@entry=0x0) at Objects/abstract.c:2522
#96 0x000000000049efc5 in do_call (nk=, na=, pp_stack=0x7fffffffa6b0, func=0x1bef050) at Python/ceval.c:4230
#97 call_function (oparg=, pp_stack=0x7fffffffa6b0) at Python/ceval.c:4035
#98 PyEval_EvalFrameEx (f=f@entry=0xe29220, throwflag=throwflag@entry=0) at Python/ceval.c:2665
#99 0x000000000049cbbb in PyEval_EvalCodeEx (co=, globals=, locals=locals@entry=0x0, args=args@entry=0x20c5c80, argcount=2, kws=kws@entry=0x2aaaaaaca068, kwcount=kwcount@entry=0, defs=defs@entry=0x0,
defcount=defcount@entry=0, closure=0x0) at Python/ceval.c:3252
#100 0x0000000000505a37 in function_call (func=0x1087c08, arg=0x20c5c68, kw=0x2253280) at Objects/funcobject.c:526
#101 0x000000000041f26a in PyObject_Call (func=func@entry=0x1087c08, arg=, kw=kw@entry=0x2253280) at Objects/abstract.c:2522
#102 0x000000000049f38d in ext_do_call (nk=0, na=, flags=, pp_stack=0x7fffffffaa30, func=0x1087c08) at Python/ceval.c:4325
#103 PyEval_EvalFrameEx (f=f@entry=0xe29040, throwflag=throwflag@entry=0) at Python/ceval.c:2704
#104 0x000000000049cbbb in PyEval_EvalCodeEx (co=, globals=, locals=locals@entry=0x0, args=args@entry=0x20c5c38, argcount=2, kws=kws@entry=0x0, kwcount=kwcount@entry=0, defs=defs@entry=0x0,
defcount=defcount@entry=0, closure=0x0) at Python/ceval.c:3252
#105 0x0000000000505926 in function_call (func=0x1087aa0, arg=0x20c5c20, kw=0x0) at Objects/funcobject.c:526
#106 0x000000000041f26a in PyObject_Call (func=func@entry=0x1087aa0, arg=arg@entry=0x20c5c20, kw=kw@entry=0x0) at Objects/abstract.c:2522
#107 0x0000000000423750 in instancemethod_call (func=0x1087aa0, arg=0x20c5c20, kw=0x0) at Objects/classobject.c:2578
#108 0x000000000041f26a in PyObject_Call (func=func@entry=0x20c6eb0, arg=arg@entry=0x20c7290, kw=kw@entry=0x0) at Objects/abstract.c:2522
#109 0x0000000000471bfc in slot_tp_call (self=0x1bf50d0, args=0x20c7290, kwds=0x0) at Objects/typeobject.c:5388
#110 0x000000000041f26a in PyObject_Call (func=func@entry=0x1bf50d0, arg=arg@entry=0x20c7290, kw=kw@entry=0x0) at Objects/abstract.c:2522
#111 0x000000000049efc5 in do_call (nk=, na=, pp_stack=0x7fffffffb0a0, func=0x1bf50d0) at Python/ceval.c:4230
#112 call_function (oparg=, pp_stack=0x7fffffffb0a0) at Python/ceval.c:4035
#113 PyEval_EvalFrameEx (f=f@entry=0x2141610, throwflag=throwflag@entry=0) at Python/ceval.c:2665
#114 0x000000000049cbbb in PyEval_EvalCodeEx (co=, globals=, locals=locals@entry=0x0, args=args@entry=0x20c5ba8, argcount=2, kws=kws@entry=0x2aaaaaaca068, kwcount=kwcount@entry=0, defs=defs@entry=0x0,
defcount=defcount@entry=0, closure=0x0) at Python/ceval.c:3252
#115 0x0000000000505a37 in function_call (func=0x1087c08, arg=0x20c5b90, kw=0x2140e00) at Objects/funcobject.c:526
#116 0x000000000041f26a in PyObject_Call (func=func@entry=0x1087c08, arg=, kw=kw@entry=0x2140e00) at Objects/abstract.c:2522
#117 0x000000000049f38d in ext_do_call (nk=0, na=, flags=, pp_stack=0x7fffffffb420, func=0x1087c08) at Python/ceval.c:4325
#118 PyEval_EvalFrameEx (f=f@entry=0x2141430, throwflag=throwflag@entry=0) at Python/ceval.c:2704
#119 0x000000000049cbbb in PyEval_EvalCodeEx (co=, globals=, locals=locals@entry=0x0, args=args@entry=0x20bfec0, argcount=2, kws=kws@entry=0x0, kwcount=kwcount@entry=0, defs=defs@entry=0x0,
defcount=defcount@entry=0, closure=0x0) at Python/ceval.c:3252
#120 0x0000000000505926 in function_call (func=0x1087aa0, arg=0x20bfea8, kw=0x0) at Objects/funcobject.c:526
#121 0x000000000041f26a in PyObject_Call (func=func@entry=0x1087aa0, arg=arg@entry=0x20bfea8, kw=kw@entry=0x0) at Objects/abstract.c:2522
#122 0x0000000000423750 in instancemethod_call (func=0x1087aa0, arg=0x20bfea8, kw=0x0) at Objects/classobject.c:2578
#123 0x000000000041f26a in PyObject_Call (func=func@entry=0x20c6e60, arg=arg@entry=0x20bdcd0, kw=kw@entry=0x0) at Objects/abstract.c:2522
#124 0x0000000000471bfc in slot_tp_call (self=0x20c74d0, args=0x20bdcd0, kwds=0x0) at Objects/typeobject.c:5388
#125 0x000000000041f26a in PyObject_Call (func=func@entry=0x20c74d0, arg=arg@entry=0x20bdcd0, kw=kw@entry=0x0) at Objects/abstract.c:2522
#126 0x000000000049efc5 in do_call (nk=, na=, pp_stack=0x7fffffffba90, func=0x20c74d0) at Python/ceval.c:4230
#127 call_function (oparg=, pp_stack=0x7fffffffba90) at Python/ceval.c:4035
#128 PyEval_EvalFrameEx (f=f@entry=0x21406f0, throwflag=throwflag@entry=0) at Python/ceval.c:2665
#129 0x000000000049cbbb in PyEval_EvalCodeEx (co=, globals=, locals=locals@entry=0x0, args=args@entry=0x20bfda0, argcount=2, kws=kws@entry=0x2aaaaaaca068, kwcount=kwcount@entry=0, defs=defs@entry=0x0,
defcount=defcount@entry=0, closure=0x0) at Python/ceval.c:3252
#130 0x0000000000505a37 in function_call (func=0x1087c08, arg=0x20bfd88, kw=0x213ed30) at Objects/funco
#131 0x000000000041f26a in PyObject_Call (func=func@entry=0x1087c08, arg=, kw=kw@entry=0x213ed30) at Objects/abstract.c:2522
#132 0x000000000049f38d in ext_do_call (nk=0, na=, flags=, pp_stack=0x7fffffffbe10, func=0x1087c08) at Python/ceval.c:4325
#133 PyEval_EvalFrameEx (f=f@entry=0x2140510, throwflag=throwflag@entry=0) at Python/ceval.c:2704
#134 0x000000000049cbbb in PyEval_EvalCodeEx (co=, globals=, locals=locals@entry=0x0, args=args@entry=0x20bf0b0, argcount=2, kws=kws@entry=0x0, kwcount=kwcount@entry=0, defs=defs@entry=0x0,
defcount=defcount@entry=0, closure=0x0) at Python/ceval.c:3252
#135 0x0000000000505926 in function_call (func=0x1087aa0, arg=0x20bf098, kw=0x0) at Objects/funcobject.c:526
#136 0x000000000041f26a in PyObject_Call (func=func@entry=0x1087aa0, arg=arg@entry=0x20bf098, kw=kw@entry=0x0) at Objects/abstract.c:2522
#137 0x0000000000423750 in instancemethod_call (func=0x1087aa0, arg=0x20bf098, kw=0x0) at Objects/classobject.c:2578
#138 0x000000000041f26a in PyObject_Call (func=func@entry=0x20c65f0, arg=arg@entry=0x20c7090, kw=kw@entry=0x0) at Objects/abstract.c:2522
#139 0x0000000000471bfc in slot_tp_call (self=0x20c7690, args=0x20c7090, kwds=0x0) at Objects/typeobject.c:5388
#140 0x000000000041f26a in PyObject_Call (func=func@entry=0x20c7690, arg=arg@entry=0x20c7090, kw=kw@entry=0x0) at Objects/abstract.c:2522
#141 0x000000000049efc5 in do_call (nk=, na=, pp_stack=0x7fffffffc480, func=0x20c7690) at Python/ceval.c:4230
#142 call_function (oparg=, pp_stack=0x7fffffffc480) at Python/ceval.c:4035
#143 PyEval_EvalFrameEx (f=f@entry=0x213e610, throwflag=throwflag@entry=0) at Python/ceval.c:2665
#144 0x000000000049cbbb in PyEval_EvalCodeEx (co=, globals=, locals=locals@entry=0x0, args=args@entry=0x20bf4a0, argcount=2, kws=kws@entry=0x2aaaaaaca068, kwcount=kwcount@entry=0, defs=defs@entry=0x0,
defcount=defcount@entry=0, closure=0x0) at Python/ceval.c:3252
#145 0x0000000000505a37 in function_call (func=0x1087c08, arg=0x20bf488, kw=0x213e4f0) at Objects/funcobject.c:526
#146 0x000000000041f26a in PyObject_Call (func=func@entry=0x1087c08, arg=, kw=kw@entry=0x213e4f0) at Objects/abstract.c:2522
#147 0x000000000049f38d in ext_do_call (nk=0, na=, flags=, pp_stack=0x7fffffffc800, func=0x1087c08) at Python/ceval.c:4325
#148 PyEval_EvalFrameEx (f=f@entry=0x213e310, throwflag=throwflag@entry=0) at Python/ceval.c:2704
#149 0x000000000049cbbb in PyEval_EvalCodeEx (co=, globals=, locals=locals@entry=0x0, args=args@entry=0x1277608, argcount=2, kws=kws@entry=0x0, kwcount=kwcount@entry=0, defs=defs@entry=0x0,
defcount=defcount@entry=0, closure=0x0) at Python/ceval.c:3252
#150 0x0000000000505926 in function_call (func=0x1087aa0, arg=0x12775f0, kw=0x0) at Objects/funcobject.c:526
#151 0x000000000041f26a in PyObject_Call (func=func@entry=0x1087aa0, arg=arg@entry=0x12775f0, kw=kw@entry=0x0) at Objects/abstract.c:2522
#152 0x0000000000423750 in instancemethod_call (func=0x1087aa0, arg=0x12775f0, kw=0x0) at Objects/classobject.c:2578
#153 0x000000000041f26a in PyObject_Call (func=func@entry=0x115fd20, arg=arg@entry=0x10c2e10, kw=kw@entry=0x0) at Objects/abstract.c:2522
#154 0x0000000000471bfc in slot_tp_call (self=0x128a950, args=0x10c2e10, kwds=0x0) at Objects/typeobject.c:5388
#155 0x000000000041f26a in PyObject_Call (func=func@entry=0x128a950, arg=arg@entry=0x10c2e10, kw=kw@entry=0x0) at Objects/abstract.c:2522
#156 0x000000000049efc5 in do_call (nk=, na=, pp_stack=0x7fffffffce70, func=0x128a950) at Python/ceval.c:4230
#157 call_function (oparg=, pp_stack=0x7fffffffce70) at Python/ceval.c:4035
#158 PyEval_EvalFrameEx (f=, throwflag=throwflag@entry=0) at Python/ceval.c:2665
#159 0x00000000004a263f in fast_function (nk=, na=2, n=, pp_stack=0x7fffffffd070, func=0x108b668) at Python/ceval.c:4098
#160 call_function (oparg=, pp_stack=0x7fffffffd070) at Python/ceval.c:4033
#161 PyEval_EvalFrameEx (f=, throwflag=throwflag@entry=0) at Python/ceval.c:2665
#162 0x00000000004a263f in fast_function (nk=, na=1, n=, pp_stack=0x7fffffffd270, func=0x108b8c0) at Python/ceval.c:4098
#163 call_function (oparg=, pp_stack=0x7fffffffd270) at Python/ceval.c:4033
#164 PyEval_EvalFrameEx (f=f@entry=0x12bf840, throwflag=throwflag@entry=0) at Python/ceval.c:2665
#165 0x000000000049cbbb in PyEval_EvalCodeEx (co=, globals=, locals=locals@entry=0x0, args=args@entry=0x11c84a8, argcount=1, kws=kws@entry=0x11d7b18, kwcount=kwcount@entry=6,
defs=defs@entry=0x2aaab1a8d200, defcount=defcount@entry=10, closure=0x0) at Python/ceval.c:3252
#166 0x0000000000505a37 in function_call (func=0x2aaab1a911b8, arg=0x11c8490, kw=0x12bf410) at Objects/funcobject.c:526
#167 0x000000000041f26a in PyObject_Call (func=func@entry=0x2aaab1a911b8, arg=arg@entry=0x11c8490, kw=kw@entry=0x12bf410) at Objects/abstract.c:2522
#168 0x0000000000423750 in instancemethod_call (func=0x2aaab1a911b8, arg=0x11c8490, kw=0x12bf410) at Objects/classobject.c:2578
#169 0x000000000041f26a in PyObject_Call (func=func@entry=0x1173f50, arg=, kw=kw@entry=0x12bf410) at Objects/abstract.c:2522
#170 0x000000000049f38d in ext_do_call (nk=5, na=, flags=, pp_stack=0x7fffffffd870, func=0x1173f50) at Python/ceval.c:4325
#171 PyEval_EvalFrameEx (f=f@entry=0x12bf180, throwflag=throwflag@entry=0) at Python/ceval.c:2704
#172 0x000000000049cbbb in PyEval_EvalCodeEx (co=, globals=, locals=locals@entry=0x0, args=args@entry=0x2aaaaaba7428, argcount=1, kws=kws@entry=0x121ce38, kwcount=kwcount@entry=3,
defs=defs@entry=0x1086068, defcount=defcount@entry=11, closure=0x0) at Python/ceval.c:3252
#173 0x0000000000505a37 in function_call (func=0x108b6e0, arg=0x2aaaaaba7410, kw=0x126cc00) at Objects/funcobject.c:526
#174 0x000000000041f26a in PyObject_Call (func=func@entry=0x108b6e0, arg=arg@entry=0x2aaaaaba7410, kw=kw@entry=0x126cc00) at Objects/abstract.c:2522
#175 0x0000000000423750 in instancemethod_call (func=0x108b6e0, arg=0x2aaaaaba7410, kw=0x126cc00) at Objects/classobject.c:2578
#176 0x000000000041f26a in PyObject_Call (func=func@entry=0x115fcd0, arg=arg@entry=0x2aaaaaaca050, kw=kw@entry=0x126cc00) at Objects/abstract.c:2522
#177 0x0000000000471580 in slot_tp_init (self=0x128a3d0, args=0x2aaaaaaca050, kwds=0x126cc00) at Objects/typeobject.c:5648
#178 0x000000000046d81f in type_call (type=, args=0x2aaaaaaca050, kwds=0x126cc00) at Objects/typeobject.c:725
#179 0x000000000041f26a in PyObject_Call (func=func@entry=0x10be160, arg=, kw=kw@entry=0x126cc00) at Objects/abstract.c:2522
#180 0x000000000049f38d in ext_do_call (nk=0, na=, flags=, pp_stack=0x7fffffffdf10, func=0x10be160) at Python/ceval.c:4325
#181 PyEval_EvalFrameEx (f=f@entry=0x12bac40, throwflag=throwflag@entry=0) at Python/ceval.c:2704
#182 0x000000000049cbbb in PyEval_EvalCodeEx (co=, globals=, locals=locals@entry=0x0, args=, argcount=argcount@entry=0, kws=0x8afe10, kwcount=2, defs=0x0, defcount=0, closure=0x0)
at Python/ceval.c:3252
#183 0x00000000004a17ce in fast_function (nk=, na=0, n=, pp_stack=0x7fffffffe1c0, func=0x108b500) at Python/ceval.c:4108
#184 call_function (oparg=, pp_stack=0x7fffffffe1c0) at Python/ceval.c:4033
#185 PyEval_EvalFrameEx (f=f@entry=0x8afc40, throwflag=throwflag@entry=0) at Python/ceval.c:2665
#186 0x000000000049cbbb in PyEval_EvalCodeEx (co=, globals=, locals=locals@entry=0x0, args=, argcount=argcount@entry=0, kws=0x8a4a60, kwcount=1, defs=0x2aaaafab6868, defcount=1, closure=0x0)
at Python/ceval.c:3252
#187 0x00000000004a17ce in fast_function (nk=, na=0, n=, pp_stack=0x7fffffffe470, func=0xddbed8) at Python/ceval.c:4108
#188 call_function (oparg=, pp_stack=0x7fffffffe470) at Python/ceval.c:4033
#189 PyEval_EvalFrameEx (f=f@entry=0x8a48e0, throwflag=throwflag@entry=0) at Python/ceval.c:2665
#190 0x000000000049cbbb in PyEval_EvalCodeEx (co=co@entry=0x2aaaaab187b0, globals=globals@entry=0x7f8170, locals=locals@entry=0x7f8170, args=args@entry=0x0, argcount=argcount@entry=0, kws=kws@entry=0x0, kwcount=kwcount@entry=0,
defs=defs@entry=0x0, defcount=defcount@entry=0, closure=closure@entry=0x0) at Python/ceval.c:3252
#191 0x000000000049cce2 in PyEval_EvalCode (co=co@entry=0x2aaaaab187b0, globals=globals@entry=0x7f8170, locals=locals@entry=0x7f8170) at Python/ceval.c:666
#192 0x00000000004c5ae1 in run_mod (arena=0x7f85b0, flags=0x7fffffffe640, locals=0x7f8170, globals=0x7f8170, filename=0x520cd6 "", mod=0x8a2850) at Python/pythonrun.c:1346
#193 PyRun_StringFlags (flags=0x7fffffffe640, locals=0x7f8170, globals=0x7f8170, start=257, str=) at Python/pythonrun.c:1309
#194 PyRun_SimpleStringFlags (command=command@entry=0x7b9010 "import matplotlib; matplotlib.test(verbosity=2)\n", flags=flags@entry=0x7fffffffe640) at Python/pythonrun.c:962
#195 0x0000000000414d70 in Py_Main (argc=3, argv=) at Modules/main.c:543
#196 0x0000003d4d41d994 in __libc_start_main () from /lib64/libc.so.6
#197 0x0000000000414471 in _start ()
(gdb)
(gdb)

[mdboom]

Puzzling. I'm not sure what it's waiting on to read from here. Are you using a network filesystem?

[richbwood]

Yes, unfortunately it is a networked file system. It's curious that it always fails in the same place.
I could try doing a local build?
Ultimately I want to install onto a shared network drive.

[mdboom]

Yeah -- that was just a wild guess, and it doesn't really explain why it always fails at the same place... Puzzling indeed.

[richbwood]

Running on a local file system didn't help.

[efiring]

Since there has been no activity on this for 5 months, and since it apparently has not cropped up elsewhere, I will close it.