issue with libthr?

Hi,

I'm getting a ton of core dumps from Python and any software that uses Python,
ie has USE_PYTHON_BUILD=yes in Makefile.

hundreds of msgs in dmesg:
pid 36637 (seamonkey), uid 1001: exited on signal 11 (core dumped)
pid 36986 (seamonkey), uid 1001: exited on signal 11 (core dumped)
pid 37054 (seamonkey), uid 1001: exited on signal 11 (core dumped)
pid 51780 (seamonkey), uid 1001: exited on signal 11 (core dumped)
pid 83350 (python2.7), uid 0: exited on signal 6 (core dumped)

from gdb it seems to me to be libthr related? I've noticed a couple updates in
May.. wonder if it's related? I've only noticed this issue in the past week,
after a complete rebuild and updated.

> uname -a
FreeBSD dx.burplex.com 10.0-CURRENT FreeBSD 10.0-CURRENT #0 r251111: Wed May
29 16:44:31 PDT 2013     root_at_dx.burplex.com:/usr/obj/usr/src/sys/FURAHA 
amd64

gdb:

seamonkey

(gdb) bt
#0  0x00000008011ee8ca in thr_kill () from /lib/libc.so.7
#1  0x000000080316b585 in XRE_InstallX11ErrorHandler ()
   from /usr/local/lib/seamonkey/libxul.so
#2  0x0000000800f73286 in swapcontext () from /lib/libthr.so.3
#3  0x0000000800f72e89 in sigaction () from /lib/libthr.so.3
#4  0x00007ffffffff1d3 in ?? ()
#5  0x0000000800f72d70 in sigaction () from /lib/libthr.so.3
Previous frame inner to this frame (corrupt stack?)


python

(gdb) bt
#0  0x000000080100d8ca in thr_kill () from /lib/libc.so.7
#1  0x00000008010d2e9c in abort () from /lib/libc.so.7
#2  0x0000000803e4f05b in free ()
   from /usr/local/lib/python2.7/lib-dynload/_ctypes.so
#3  0x0000000800d9319f in pthread_mutex_destroy () from /lib/libthr.so.3
#4  0x00000008010269ff in closedir () from /lib/libc.so.7
#5  0x00000000004b545c in initposix ()
#6  0x000000000047fb75 in PyEval_EvalFrameEx ()
#7  0x000000000047d824 in PyEval_EvalCodeEx ()
#8  0x0000000000484256 in _PyEval_SliceIndex ()
#9  0x00000000004810cd in PyEval_EvalFrameEx ()
#10 0x000000000047d824 in PyEval_EvalCodeEx ()
#11 0x00000000004d5f56 in PyFunction_SetClosure ()
#12 0x000000000041ffeb in PyObject_Call ()
#13 0x0000000000482085 in PyEval_EvalFrameEx ()
#14 0x000000000047d824 in PyEval_EvalCodeEx ()
#15 0x0000000000484256 in _PyEval_SliceIndex ()
#16 0x00000000004810cd in PyEval_EvalFrameEx ()
#17 0x000000000047d824 in PyEval_EvalCodeEx ()
#18 0x0000000000484256 in _PyEval_SliceIndex ()
#19 0x00000000004810cd in PyEval_EvalFrameEx ()
#20 0x000000000047d824 in PyEval_EvalCodeEx ()
#21 0x0000000000484256 in _PyEval_SliceIndex ()
#22 0x00000000004810cd in PyEval_EvalFrameEx ()
#23 0x00000000004841f2 in _PyEval_SliceIndex ()
#24 0x00000000004810cd in PyEval_EvalFrameEx ()
#25 0x00000000004841f2 in _PyEval_SliceIndex ()
#26 0x00000000004810cd in PyEval_EvalFrameEx ()
#27 0x00000000004841f2 in _PyEval_SliceIndex ()
#28 0x00000000004810cd in PyEval_EvalFrameEx ()
#29 0x00000000004841f2 in _PyEval_SliceIndex ()
#30 0x00000000004810cd in PyEval_EvalFrameEx ()
#31 0x00000000004841f2 in _PyEval_SliceIndex ()
#32 0x00000000004810cd in PyEval_EvalFrameEx ()
#33 0x000000000047d824 in PyEval_EvalCodeEx ()
#34 0x000000000047d156 in PyEval_EvalCode ()
#35 0x00000000004a1361 in PyRun_FileExFlags ()
#36 0x00000000004a0eb1 in PyRun_SimpleFileExFlags ()
#37 0x0000000000417549 in Py_Main ()
#38 0x000000000041692f in main ()


Any help/pointers much appreciated.

Thank you,

--
Waitman Gobble
San Jose California USA
+1.5108307875