camError

libv4l2: error setting pixformat: Device or resource busy
HIGHGUI ERROR: libv4l unable to ioctl S_FMT
libv4l2: error setting pixformat: Device or resource busy
libv4l1: error setting pixformat: Device or resource busy
HIGHGUI ERROR: libv4l unable to ioctl VIDIOCSPICT

*** glibc detected *** /usr/bin/python: double free or corruption (fasttop): 0x0000000003724b80 ***
======= Backtrace: =========
/lib/x86_64-linux-gnu/libc.so.6(+0x7eb96)[0x7f0ecac5eb96]
/usr/local/lib/libopencv_highgui.so.2.4(_ZN20CvCaptureCAM_V4L_CPP4openEi+0x6b5)[0x7f0eb4b1e4c5]
/usr/local/lib/libopencv_highgui.so.2.4(_Z25cvCreateCameraCapture_V4Li+0x3d)[0x7f0eb4b1f6ad]
/usr/local/lib/libopencv_highgui.so.2.4(cvCreateCameraCapture+0x82)[0x7f0eb4aeb712]
/usr/local/lib/python2.7/dist-packages/cv2.so(+0x46ca8)[0x7f0eb6309ca8]
/usr/bin/python(PyEval_EvalFrameEx+0x2a4)[0x497ea4]
/usr/bin/python(PyEval_EvalCodeEx+0x1a0)[0x49f1c0]
/usr/bin/python[0x4a8960]
/usr/bin/python(PyObject_Call+0x36)[0x4e9f36]
/usr/bin/python[0x4ec11a]
/usr/bin/python(PyObject_Call+0x36)[0x4e9f36]
/usr/bin/python(PyEval_CallObjectWithKeywords+0x36)[0x4ea396]
/usr/bin/python(PyInstance_New+0x7b)[0x4890fb]
/usr/bin/python(PyObject_Call+0x36)[0x4e9f36]
/usr/bin/python(PyEval_EvalFrameEx+0x86a)[0x49846a]
/usr/bin/python(PyEval_EvalCodeEx+0x1a0)[0x49f1c0]
/usr/bin/python(PyEval_EvalCode+0x32)[0x4a8b62]
/usr/bin/python(PyEval_EvalFrameEx+0x335f)[0x49af5f]
/usr/bin/python(PyEval_EvalCodeEx+0x1a0)[0x49f1c0]
/usr/bin/python(PyEval_EvalFrameEx+0x7b8)[0x4983b8]
/usr/bin/python(PyEval_EvalCodeEx+0x1a0)[0x49f1c0]
/usr/bin/python(PyEval_EvalFrameEx+0x7b8)[0x4983b8]
/usr/bin/python(PyEval_EvalCodeEx+0x1a0)[0x49f1c0]
/usr/bin/python(PyEval_EvalFrameEx+0x7b8)[0x4983b8]
/usr/bin/python(PyEval_EvalCodeEx+0x1a0)[0x49f1c0]
/usr/bin/python(PyEval_EvalFrameEx+0x7b8)[0x4983b8]
/usr/bin/python(PyEval_EvalCodeEx+0x1a0)[0x49f1c0]
/usr/bin/python(PyEval_EvalFrameEx+0x7b8)[0x4983b8]
/usr/bin/python(PyEval_EvalCodeEx+0x1a0)[0x49f1c0]
/usr/bin/python[0x4a8960]
/usr/bin/python(PyObject_Call+0x36)[0x4e9f36]
/usr/bin/python[0x4ec11a]
/usr/bin/python(PyObject_Call+0x36)[0x4e9f36]
/usr/bin/python[0x4eb62e]
/usr/bin/python(PyObject_Call+0x36)[0x4e9f36]
/usr/bin/python(PyEval_EvalFrameEx+0x86a)[0x49846a]
/usr/bin/python(PyEval_EvalCodeEx+0x1a0)[0x49f1c0]
/usr/bin/python(PyEval_EvalFrameEx+0x7b8)[0x4983b8]
/usr/bin/python(PyEval_EvalCodeEx+0x1a0)[0x49f1c0]
/usr/bin/python(PyRun_FileExFlags+0xe1)[0x4a9081]
/usr/bin/python(PyRun_SimpleFileExFlags+0x1d1)[0x4a9311]
/usr/bin/python(Py_Main+0x55d)[0x4aa8bd]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xed)[0x7f0ecac0176d]
/usr/bin/python[0x41b9b1]
======= Memory map: ========
00400000-00671000 r-xp 00000000 08:05 265687                             /usr/bin/python2.7
00870000-00871000 r--p 00270000 08:05 265687                             /usr/bin/python2.7
00871000-008da000 rw-p 00271000 08:05 265687                             /usr/bin/python2.7
008da000-008ec000 rw-p 00000000 00:00 0 
01a4f000-037d8000 rw-p 00000000 00:00 0                                  [heap]
7f0e90000000-7f0e90021000 rw-p 00000000 00:00 0 
7f0e90021000-7f0e94000000 ---p 00000000 00:00 0 
7f0e98000000-7f0e9c000000 rw-p 00000000 00:00 0 
7f0e9c000000-7f0e9c021000 rw-p 00000000 00:00 0 
7f0e9c021000-7f0ea0000000 ---p 00000000 00:00 0 
7f0ea01c9000-7f0ea01ca000 ---p 00000000 00:00 0 
7f0ea01ca000-7f0ea09ca000 rw-p 00000000 00:00 0                          [stack:3715]
7f0ea09ca000-7f0ea0a60000 rw-s 001c2000 00:05 9562                       /dev/video0
7f0ea0a60000-7f0ea0af6000 rw-s 0012c000 00:05 9562                       /dev/video0
7f0ea0af6000-7f0ea0b8c000 rw-s 00096000 00:05 9562                       /dev/video0
7f0ea0b8c000-7f0ea1b8d000 rw-p 00000000 00:00 0 
7f0ea1b8d000-7f0ea1bc6000 r-xp 00000000 08:05 3411568                    /lib/x86_64-linux-gnu/libreadline.so.6.2
7f0ea1bc6000-7f0ea1dc6000 ---p 00039000 08:05 3411568                    /lib/x86_64-linux-gnu/libreadline.so.6.2
7f0ea1dc6000-7f0ea1dc8000 r--p 00039000 08:05 3411568                    /lib/x86_64-linux-gnu/libreadline.so.6.2
7f0ea1dc8000-7f0ea1dce000 rw-p 0003b000 08:05 3411568                    /lib/x86_64-linux-gnu/libreadline.so.6.2
7f0ea1dce000-7f0ea1dcf000 rw-p 00000000 00:00 0 
7f0ea1dcf000-7f0ea1dd4000 r-xp 00000000 08:05 398808                     /usr/lib/python2.7/lib-dynload/readline.so
7f0ea1dd4000-7f0ea1fd3000 ---p 00005000 08:05 398808                     /usr/lib/python2.7/lib-dynload/readline.so
7f0ea1fd3000-7f0ea1fd4000 r--p 00004000 08:05 398808                     /usr/lib/python2.7/lib-dynload/readline.so
7f0ea1fd4000-7f0ea1fd6000 rw-p 00005000 08:05 398808                     /usr/lib/python2.7/lib-dynload/readline.so
7f0ea1fd6000-7f0ea1fd7000 ---p 00000000 00:00 0 
7f0ea1fd7000-7f0ea27d7000 rw-p 00000000 00:00 0                          [stack:3714]
7f0ea27d7000-7f0ea27ee000 r-xp 00000000 08:05 3675180                    /usr/lib/pyshared/python2.7/sklearn/neighbors/ball_tree.so
7f0ea27ee000-7f0ea29ed000 ---p 00017000 08:05 3675180                    /usr/lib/pyshared/python2.7/sklearn/neighbors/ball_tree.so
7f0ea29ed000-7f0ea29ee000 r--p 00016000 08:05 3675180                    /usr/lib/pyshared/python2.7/sklearn/neighbors/ball_tree.so
7f0ea29ee000-7f0ea29f4000 rw-p 00017000 08:05 3675180                    /usr/lib/pyshared/python2.7/sklearn/neighbors/ball_tree.so
7f0ea29f4000-7f0ea29f5000 rw-p 00000000 00:00 0 
7f0ea29f5000-7f0ea29f7000 r-xp 00000000 08:05 3675153                    /usr/lib/pyshared/python2.7/sklearn/check_build/_check_build.so
7f0ea29f7000-7f0ea2bf6000 ---p 00002000 08:05 3675153                    /usr/lib/pyshared/python2.7/sklearn/check_build/_check_build.so
7f0ea2bf6000-7f0ea2bf7000 r--p 00001000 08:05 3675153                    /usr/lib/pyshared/python2.7/sklearn/check_build/_check_build.so
7f0ea2bf7000-7f0ea2bf8000 rw-p 00002000 08:05 3675153                    /usr/lib/pyshared/python2.7/sklearn/check_build/_check_build.so
7f0ea2bf8000-7f0ea2c03000 r-xp 00000000 08:05 536317                     /usr/local/lib/python2.7/dist-packages/scipy/signal/spectral.so
7f0ea2c03000-7f0ea2e02000 ---p 0000b000 08:05 536317                     /usr/local/lib/python2.7/dist-packages/scipy/signal/spectral.so
7f0ea2e02000-7f0ea2e03000 r--p 0000a000 08:05 536317                     /usr/local/lib/python2.7/dist-packages/scipy/signal/spectral.so
7f0ea2e03000-7f0ea2e06000 rw-p 0000b000 08:05 536317                     /usr/local/lib/python2.7/dist-packages/scipy/signal/spectral.so
7f0ea2e06000-7f0ea2e1b000 r-xp 00000000 08:05 536072                     /usr/local/lib/python2.7/dist-packages/scipy/fftpack/convolve.so
7f0ea2e1b000-7f0ea301a000 ---p 00015000 08:05 536072                     /usr/local/lib/python2.7/dist-packages/scipy/fftpack/convolve.so
7f0ea301a000-7f0ea301b000 r--p 00014000 08:05 536072                     /usr/local/lib/python2.7/dist-packages/scipy/fftpack/convolve.so
7f0ea301b000-7f0ea301d000 rw-p 00015000 08:05 536072                     /usr/local/lib/python2.7/dist-packages/scipy/fftpack/convolve.so
7f0ea301d000-7f0ea3068000 r-xp 00000000 08:05 536065                     /usr/local/lib/python2.7/dist-packages/scipy/fftpack/_fftpack.so
7f0ea3068000-7f0ea3267000 ---p 0004b000 08:05 536065                     /usr/local/lib/python2.7/dist-packages/scipy/fftpack/_fftpack.so
7f0ea3267000-7f0ea3268000 r--p 0004a000 08:05 536065                     /usr/local/lib/python2.7/dist-packages/scipy/fftpack/_fftpack.so
7f0ea3268000-7f0ea326e000 rw-p 0004b000 08:05 536065                     /usr/local/lib/python2.7/dist-packages/scipy/fftpack/_fftpack.so
7f0ea326e000-7f0ea326f000 rw-p 00000000 00:00 0 
7f0ea326f000-7f0ea3278000 r-xp 00000000 08:05 536312                     /usr/local/lib/python2.7/dist-packages/scipy/signal/spline.so
7f0ea3278000-7f0ea3477000 ---p 00009000 08:05 536312                     /usr/local/lib/python2.7/dist-packages/scipy/signal/spline.so
7f0ea3477000-7f0ea3478000 r--p 00008000 08:05 536312                     /usr/local/lib/python2.7/dist-packages/scipy/signal/spline.so
7f0ea3478000-7f0ea3479000 rw-p 00009000 08:05 536312                     /usr/local/lib/python2.7/dist-packages/scipy/signal/spline.so
7f0ea3479000-7f0ea348b000 r-xp 00000000 08:05 536313                     /usr/local/lib/python2.7/dist-packages/scipy/signal/sigtools.so
7f0ea348b000-7f0ea368a000 ---p 00012000 08:05 536313                     /usr/local/lib/python2.7/dist-packages/scipy/signal/sigtools.so
7f0ea368a000-7f0ea368b000 r--p 00011000 08:05 536313                     /usr/local/lib/python2.7/dist-packages/scipy/signal/sigtools.so
7f0ea368b000-7f0ea368c000 rw-p 00012000 08:05 536313                     /usr/local/lib/python2.7/dist-packages/scipy/signal/sigtools.so
7f0ea368c000-7f0ea368f000 r-xp 00000000 08:05 398791                     /usr/lib/python2.7/lib-dynload/_lsprof.so
7f0ea368f000-7f0ea388f000 ---p 00003000 08:05 398791                     /usr/lib/python2.7/lib-dynload/_lsprof.so
7f0ea388f000-7f0ea3890000 r--p 00003000 08:05 398791                     /usr/lib/python2.7/lib-dynload/_lsprof.so
7f0ea3890000-7f0ea3891000 rw-p 00004000 08:05 398791                     /usr/lib/python2.7/lib-dynload/_lsprof.so
7f0ea3891000-7f0ea389f000 r-xp 00000000 08:05 398809                     /usr/lib/python2.7/lib-dynload/pyexpat.so
7f0ea389f000-7f0ea3a9e000 ---p 0000e000 08:05 398809                     /usr/lib/python2.7/lib-dynload/pyexpat.so
7f0ea3a9e000-7f0ea3a9f000 r--p 0000d000 08:05 398809                     /usr/lib/python2.7/lib-dynload/pyexpat.so
7f0ea3a9f000-7f0ea3aa1000 rw-p 0000e000 08:05 398809                     /usr/lib/python2.7/lib-dynload/pyexpat.so
7f0ea3aa1000-7f0ea3b3f000 r-xp 00000000 08:05 266566                     /usr/lib/x86_64-linux-gnu/libsqlite3.so.0.8.6
7f0ea3b3f000-7f0ea3d3f000 ---p 0009e000 08:05 266566                     /usr/lib/x86_64-linux-gnu/libsqlite3.so.0.8.6
7f0ea3d3f000-7f0ea3d41000 r--p 0009e000 08:05 266566                     /usr/lib/x86_64-linux-gnu/libsqlite3.so.0.8.6
7f0ea3d41000-7f0ea3d43000 rw-p 000a0000 08:05 266566                     /usr/lib/x86_64-linux-gnu/libsqlite3.so.0.8.6
7f0ea3d43000-7f0ea3d44000 rw-p 00000000 00:00 0 
7f0ea3d6c000-7f0ea3d7d000 r-xp 00000000 08:05 398786                     /usr/lib/python2.7/lib-dynload/_sqlite3.so
7f0ea3d7d000-7f0ea3f7d000 ---p 00011000 08:05 398786                     /usr/lib/python2.7/lib-dynload/_sqlite3.so
7f0ea3f7d000-7f0ea3f7e000 r--p 00011000 08:05 398786                     /usr/lib/python2.7/lib-dynload/_sqlite3.so
7f0ea3f7e000-7f0ea3f80000 rw-p 00012000 08:05 398786                     /usr/lib/python2.7/lib-dynload/_sqlite3.so
7f0ea3f80000-7f0ea3f93000 r-xp 00000000 08:05 398775                     /usr/lib/python2.7/lib-dynload/_curses.so
7f0ea3f93000-7f0ea4192000 ---p 00013000 08:05 398775                     /usr/lib/python2.7/lib-dynload/_curses.so
7f0ea4192000-7f0ea4193000 r--p 00012000 08:05 398775                     /usr/lib/python2.7/lib-dynload/_curses.so
7f0ea4193000-7f0ea4195000 rw-p 00013000 08:05 398775                     /usr/lib/python2.7/lib-dynload/_curses.so
7f0ea4195000-7f0ea41a9000 r-xp 00000000 08:05 398789                     /usr/lib/python2.7/lib-dynload/datetime.so
7f0ea41a9000-7f0ea43a8000 ---p 00014000 08:05 398789                     /usr/lib/python2.7/lib-dynload/datetime.so
7f0ea43a8000-7f0ea43a9000 r--p 00013000 08:05 398789                     /usr/lib/python2.7/lib-dynload/datetime.so
7f0ea43a9000-7f0ea43ad000 rw-p 00014000 08:05 398789                     /usr/lib/python2.7/lib-dynload/datetime.so
7f0ea43ad000-7f0ea43b1000 r-xp 00000000 08:05 398779                     /usr/lib/python2.7/lib-dynload/termios.so
7f0ea43b1000-7f0ea45b0000 ---p 00004000 08:05 398779                     /usr/lib/python2.7/lib-dynload/termios.so
7f0ea45b0000-7f0ea45b1000 r--p 00003000 08:05 398779                     /usr/lib/python2.7/lib-dynload/termios.so
7f0ea45b1000-7f0ea45b3000 rw-p 00004000 08:05 398779                     /usr/lib/python2.7/lib-dynload/termios.so
7f0ea45b3000-7f0ea45b5000 r-xp 00000000 08:05 398774                     /usr/lib/python2.7/lib-dynload/resource.so
7f0ea45b5000-7f0ea47b4000 ---p 00002000 08:05 398774                     /usr/lib/python2.7/lib-dynload/resource.so
7f0ea47b4000-7f0ea47b5000 r--p 00001000 08:05 398774                     /usr/lib/python2.7/lib-dynload/resource.so
7f0ea47b5000-7f0ea47b6000 rw-p 00002000 08:05 398774                     /usr/lib/python2.7/lib-dynload/resource.so
7f0ea47b6000-7f0ea4ab7000 rw-p 00000000 00:00 0 
7f0ea4ab7000-7f0ea4ad4000 r-xp 00000000 08:05 3411573                    /lib/x86_64-linux-gnu/libselinux.so.1
7f0ea4ad4000-7f0ea4cd3000 ---p 0001d000 08:05 3411573                    /lib/x86_64-linux-gnu/libselinux.so.1
7f0ea4cd3000-7f0ea4cd4000 r--p 0001c000 08:05 3411573                    /lib/x86_64-linux-gnu/libselinux.so.1
7f0ea4cd4000-7f0ea4cd5000 rw-p 0001d000 08:05 3411573                    /lib/x86_64-linux-gnu/libselinux.so.1
7f0ea4cd5000-7f0ea4cd6000 rw-p 00000000 00:00 0 
7f0ea4cd6000-7f0ea4cde000 r-xp 00000000 08:05 263503                     /usr/lib/x86_64-linux-gnu/libxcb-render.so.0.0.0
7f0ea4cde000-7f0ea4ede000 ---p 00008000 08:05 263503                     /usr/lib/x86_64-linux-gnu/libxcb-render.so.0.0.0
7f0ea4ede000-7f0ea4edf000 r--p 00008000 08:05 263503                     /usr/lib/x86_64-linux-gnu/libxcb-render.so.0.0.0
7f0ea4edf000-7f0ea4ee0000 rw-p 00009000 08:05 263503                     /usr/lib/x86_64-linux-gnu/libxcb-render.so.0.0.0
7f0ea4ee0000-7f0ea4ee2000 r-xp 00000000 08:05 263505                     /usr/lib/x86_64-linux-gnu/libxcb-shm.so.0.0.0
7f0ea4ee2000-7f0ea50e1000 ---p 00002000 08:05 263505                     /usr/lib/x86_64-linux-gnu/libxcb-shm.so.0.0.0
7f0ea50e1000-7f0ea50e2000 r--p 00001000 08:05 263505                     /usr/lib/x86_64-linux-gnu/libxcb-shm.so.0.0.0
7f0ea50e2000-7f0ea50e3000 rw-p 00002000 08:05 263505                     /usr/lib/x86_64-linux-gnu/libxcb-shm.so.0.0.0
7f0ea50e3000-7f0ea5164000 r-xp 00000000 08:05 269912                     /usr/lib/x86_64-linux-gnu/libpixman-1.so.0.24.4
7f0ea5164000-7f0ea5363000 ---p 00081000 08:05 269912                     /usr/lib/x86_64-linux-gnu/libpixman-1.so.0.24.4
7f0ea5363000-7f0ea5369000 r--p 00080000 08:05 269912                     /usr/lib/x86_64-linux-gnu/libpixman-1.so.0.24.4
7f0ea5369000-7f0ea536a000 rw-p 00086000 08:05 269912                     /usr/lib/x86_64-linux-gnu/libpixman-1.so.0.24.4
7f0ea536a000-7f0ea536c000 r-xp 00000000 08:05 269475                     /usr/lib/x86_64-linux-gnu/libXcomposite.so.1.0.0
7f0ea536c000-7f0ea556b000 ---p 00002000 08:05 269475                     /usr/lib/x86_64-linux-gnu/libXcomposite.so.1.0.0
7f0ea556b000-7f0ea556c000 r--p 00001000 08:05 269475                     /usr/lib/x86_64-linux-gnu/libXcomposite.so.1.0.0
7f0ea556c000-7f0ea556d000 rw-p 00002000 08:05 269475                     /usr/lib/x86_64-linux-gnu/libXcomposite.so.1.0.0
7f0ea556d000-7f0ea5576000 r-xp 00000000 08:05 269477                     /usr/lib/x86_64-linux-gnu/libXcursor.so.1.0.2
7f0ea5576000-7f0ea5775000 ---p 00009000 08:05 269477                     /usr/lib/x86_64-linux-gnu/libXcursor.so.1.0.2
7f0ea5775000-7f0ea5776000 r--p 00008000 08:05 269477                     /usr/lib/x86_64-linux-gnu/libXcursor.so.1.0.2
7f0ea5776000-7f0ea5777000 rw-p 00009000 08:05 269477                     /usr/lib/x86_64-linux-gnu/libXcursor.so.1.0.2
7f0ea5777000-7f0ea577f000 r-xp 00000000 08:05 269501                     /usr/lib/x86_64-linux-gnu/libXrandr.so.2.2.0Aborted (core dumped)