Hi, I saw another post regarding trackster error and it seems like this is different. I have tried copying the dataset from the History option, but this same error occurs. See error script below. Thanks! Trackster Error *** glibc detected *** python: double free or corruption (top): 0x0000000001c09370 *** ======= Backtrace: ========= /lib/x86_64-linux-gnu/libc.so.6(+0x75ab6)[0x7f93fe421ab6] /lib/x86_64-linux-gnu/libc.so.6(cfree+0x6c)[0x7f93fe4267ec] /lib/x86_64-linux-gnu/libc.so.6(fclose+0x14d)[0x7f93fe412a0d] /galaxy/home/g2main/galaxy_main/eggs/pysam-0.4.2_kanwei_b10f6e722e9a-py2.7-linux-x86_64-ucs4.egg/csamtools.so(bam_index_load_literal+0x37)[0x7f93fdac2ad7] /galaxy/home/g2main/galaxy_main/eggs/pysam-0.4.2_kanwei_b10f6e722e9a-py2.7-linux-x86_64-ucs4.egg/csamtools.so(+0x6e7f8)[0x7f93fdaae7f8] python(PyObject_Call+0x36)[0x4824c6] python(PyEval_CallObjectWithKeywords+0x36)[0x486086] /galaxy/home/g2main/galaxy_main/eggs/pysam-0.4.2_kanwei_b10f6e722e9a-py2.7-linux-x86_64-ucs4.egg/csamtools.so(+0x52a04)[0x7f93fda92a04] python[0x482068] python(PyObject_Call+0x36)[0x4824c6] python(PyEval_EvalFrameEx+0x91a)[0x4c5e8a] python(PyEval_EvalCodeEx+0x136)[0x4ccee6] python(PyEval_EvalFrameEx+0x838)[0x4c5da8] python(PyEval_EvalCodeEx+0x136)[0x4ccee6] python(PyRun_FileExFlags+0xe1)[0x577901] python(PyRun_SimpleFileExFlags+0x177)[0x577b37] python(Py_Main+0x6f7)[0x550497] /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xfd)[0x7f93fe3caead] python[0x41dea1] ======= Memory map: ======== 00400000-00672000 r-xp 00000000 fe:00 893421 /usr/bin/python2.7 00871000-00872000 r--p 00271000 fe:00 893421 /usr/bin/python2.7 00872000-008db000 rw-p 00272000 fe:00 893421 /usr/bin/python2.7 008db000-008ed000 rw-p 00000000 00:00 0 0166d000-01c29000 rw-p 00000000 00:00 0 [heap] 7f93f8000000-7f93f8021000 rw-p 00000000 00:00 0 7f93f8021000-7f93fc000000 ---p 00000000 00:00 0 7f93fd6de000-7f93fd70e000 r-xp 00000000 00:18 458639 /galaxy/home/g2main/galaxy_main/eggs/pysam-0.4.2_kanwei_b10f6e722e9a-py2.7-linux-x86_64-ucs4.egg/ctabix.so 7f93fd70e000-7f93fd80d000 ---p 00030000 00:18 458639 /galaxy/home/g2main/galaxy_main/eggs/pysam-0.4.2_kanwei_b10f6e722e9a-py2.7-linux-x86_64-ucs4.egg/ctabix.so 7f93fd80d000-7f93fd812000 rw-p 0002f000 00:18 458639 /galaxy/home/g2main/galaxy_main/eggs/pysam-0.4.2_kanwei_b10f6e722e9a-py2.7-linux-x86_64-ucs4.egg/ctabix.so 7f93fd812000-7f93fd814000 rw-p 00000000 00:00 0 7f93fd814000-7f93fd83b000 r-xp 00000000 fe:00 949810 /usr/lib/python2.7/lib-dynload/_ctypes.so 7f93fd83b000-7f93fda3a000 ---p 00027000 fe:00 949810 /usr/lib/python2.7/lib-dynload/_ctypes.so 7f93fda3a000-7f93fda3b000 r--p 00026000 fe:00 949810 /usr/lib/python2.7/lib-dynload/_ctypes.so 7f93fda3b000-7f93fda3f000 rw-p 00027000 fe:00 949810 /usr/lib/python2.7/lib-dynload/_ctypes.so 7f93fda3f000-7f93fda40000 rw-p 00000000 00:00 0 7f93fda40000-7f93fdb10000 r-xp 00000000 00:18 458638 /galaxy/home/g2main/galaxy_main/eggs/pysam-0.4.2_kanwei_b10f6e722e9a-py2.7-linux-x86_64-ucs4.egg/csamtools.so 7f93fdb10000-7f93fdc10000 ---p 000d0000 00:18 458638 /galaxy/home/g2main/galaxy_main/eggs/pysam-0.4.2_kanwei_b10f6e722e9a-py2.7-linux-x86_64-ucs4.egg/csamtools.so 7f93fdc10000-7f93fdc20000 rw-p 000d0000 00:18 458638 /galaxy/home/g2main/galaxy_main/eggs/pysam-0.4.2_kanwei_b10f6e722e9a-py2.7-linux-x86_64-ucs4.egg/csamtools.so 7f93fdc20000-7f93fdc25000 rw-p 00000000 00:00 0 7f93fdc25000-7f93fdc44000 r-xp 00000000 fe:00 949804 /usr/lib/python2.7/lib-dynload/_io.so 7f93fdc44000-7f93fde44000 ---p 0001f000 fe:00 949804 /usr/lib/python2.7/lib-dynload/_io.so 7f93fde44000-7f93fde45000 r--p 0001f000 fe:00 949804 /usr/lib/python2.7/lib-dynload/_io.so 7f93fde45000-7f93fde4e000 rw-p 00020000 fe:00 949804 /usr/lib/python2.7/lib-dynload/_io.so 7f93fde4e000-7f93fdf0f000 rw-p 00000000 00:00 0 7f93fdf0f000-7f93fdf12000 r-xp 00000000 fe:00 949801 /usr/lib/python2.7/lib-dynload/_heapq.so 7f93fdf12000-7f93fe111000 ---p 00003000 fe:00 949801 /usr/lib/python2.7/lib-dynload/_heapq.so 7f93fe111000-7f93fe112000 r--p 00002000 fe:00 949801 /usr/lib/python2.7/lib-dynload/_heapq.so 7f93fe112000-7f93fe114000 rw-p 00003000 fe:00 949801 /usr/lib/python2.7/lib-dynload/_heapq.so 7f93fe114000-7f93fe196000 rw-p 00000000 00:00 0 7f93fe196000-7f93fe1ab000 r-xp 00000000 fe:00 122656 /lib/x86_64-linux-gnu/libgcc_s.so.1 7f93fe1ab000-7f93fe3ab000 ---p 00015000 fe:00 122656 /lib/x86_64-linux-gnu/libgcc_s.so.1 7f93fe3ab000-7f93fe3ac000 rw-p 00015000 fe:00 122656 /lib/x86_64-linux-gnu/libgcc_s.so.1 7f93fe3ac000-7f93fe529000 r-xp 00000000 fe:00 131366 /lib/x86_64-linux-gnu/libc-2.13.so 7f93fe529000-7f93fe729000 ---p 0017d000 fe:00 131366 /lib/x86_64-linux-gnu/libc-2.13.so 7f93fe729000-7f93fe72d000 r--p 0017d000 fe:00 131366 /lib/x86_64-linux-gnu/libc-2.13.so 7f93fe72d000-7f93fe72e000 rw-p 00181000 fe:00 131366 /lib/x86_64-linux-gnu/libc-2.13.so 7f93fe72e000-7f93fe733000 rw-p 00000000 00:00 0 7f93fe733000-7f93fe7b4000 r-xp 00000000 fe:00 131404 /lib/x86_64-linux-gnu/libm-2.13.so 7f93fe7b4000-7f93fe9b3000 ---p 00081000 fe:00 131404 /lib/x86_64-linux-gnu/libm-2.13.so 7f93fe9b3000-7f93fe9b4000 r--p 00080000 fe:00 131404 /lib/x86_64-linux-gnu/libm-2.13.so 7f93fe9b4000-7f93fe9b5000 rw-p 00081000 fe:00 131404 /lib/x86_64-linux-gnu/libm-2.13.so 7f93fe9b5000-7f93fe9cb000 r-xp 00000000 fe:00 909634 /usr/lib/x86_64-linux-gnu/libz.so.1.2.6 7f93fe9cb000-7f93febca000 ---p 00016000 fe:00 909634 /usr/lib/x86_64-linux-gnu/libz.so.1.2.6 7f93febca000-7f93febcb000 rw-p 00015000 fe:00 909634 /usr/lib/x86_64-linux-gnu/libz.so.1.2.6 7f93febcb000-7f93fed68000 r-xp 00000000 fe:00 909753 /usr/lib/x86_64-linux-gnu/libcrypto.so.1.0.0 7f93fed68000-7f93fef67000 ---p 0019d000 fe:00 909753 /usr/lib/x86_64-linux-gnu/libcrypto.so.1.0.0 7f93fef67000-7f93fef8d000 rw-p 0019c000 fe:00 909753 /usr/lib/x86_64-linux-gnu/libcrypto.so.1.0.0 7f93fef8d000-7f93fef91000 rw-p 00000000 00:00 0 7f93fef91000-7f93fefdc000 r-xp 00000000 fe:00 909754 /usr/lib/x86_64-linux-gnu/libssl.so.1.0.0 7f93fefdc000-7f93ff1db000 ---p 0004b000 fe:00 909754 /usr/lib/x86_64-linux-gnu/libssl.so.1.0.0 7f93ff1db000-7f93ff1e3000 rw-p 0004a000 fe:00 909754 /usr/lib/x86_64-linux-gnu/libssl.so.1.0.0 7f93ff1e3000-7f93ff1e5000 r-xp 00000000 fe:00 131419 /lib/x86_64-linux-gnu/libutil-2.13.so 7f93ff1e5000-7f93ff3e4000 ---p 00002000 fe:00 131419 /lib/x86_64-linux-gnu/libutil-2.13.so 7f93ff3e4000-7f93ff3e5000 r--p 00001000 fe:00 131419 /lib/x86_64-linux-gnu/libutil-2.13.so 7f93ff3e5000-7f93ff3e6000 rw-p 00002000 fe:00 131419 /lib/x86_64-linux-gnu/libutil-2.13.so 7f93ff3e6000-7f93ff3e8000 r-xp 00000000 fe:00 131412 /lib/x86_64-linux-gnu/libdl-2.13.so 7f93ff3e8000-7f93ff5e8000 ---p 00002000 fe:00 131412 /lib/x86_64-linux-gnu/libdl-2.13.so 7f93ff5e8000-7f93ff5e9000 r--p 00002000 fe:00 131412 /lib/x86_64-linux-gnu/libdl-2.13.so 7f93ff5e9000-7f93ff5ea000 rw-p 00003000 fe:00 131412 /lib/x86_64-linux-gnu/libdl-2.13.so 7f93ff5ea000-7f93ff601000 r-xp 00000000 fe:00 131416 /lib/x86_64-linux-gnu/libpthread-2.13.so 7f93ff601000-7f93ff800000 ---p 00017000 fe:00 131416 /lib/x86_64-linux-gnu/libpthread-2.13.so 7f93ff800000-7f93ff801000 r--p 00016000 fe:00 131416 /lib/x86_64-linux-gnu/libpthread-2.13.so 7f93ff801000-7f93ff802000 rw-p 00017000 fe:00 131416 /lib/x86_64-linux-gnu/libpthread-2.13.so 7f93ff802000-7f93ff806000 rw-p 00000000 00:00 0 7f93ff806000-7f93ff825000 r-xp 00000000 fe:00 131420 /lib/x86_64-linux-gnu/ld-2.13.so 7f93ff859000-7f93ff95d000 rw-p 00000000 00:00 0 7f93ff98f000-7f93ffa17000 rw-p 00000000 00:00 0 7f93ffa21000-7f93ffa22000 rw-p 00000000 00:00 0 7f93ffa22000-7f93ffa23000 rwxp 00000000 00:00 0 7f93ffa23000-7f93ffa25000 rw-p 00000000 00:00 0 7f93ffa25000-7f93ffa26000 r--p 0001f000 fe:00 131420 /lib/x86_64-linux-gnu/ld-2.13.so 7f93ffa26000-7f93ffa27000 rw-p 00020000 fe:00 131420 /lib/x86_64-linux-gnu/ld-2.13.so 7f93ffa27000-7f93ffa28000 rw-p 00000000 00:00 0 7fff744fb000-7fff7451c000 rw-p 00000000 00:00 0 [stack] 7fff74589000-7fff7458a000 r-xp 00000000 00:00 0 [vdso] ffffffffff600000-ffffffffff601000 r-xp 00000000 00:00 0 [vsyscall] Aborted