core #2

(gdb) thread apply all bt

Thread 7 (Thread 0xb73c16c0 (LWP 3150)):
#0  0xb7782424 in __kernel_vsyscall ()
#1  0xb74af2f4 in __GI_tcgetpgrp (fd=25035520)
    at ../sysdeps/unix/bsd/tcgetpgrp.c:33
#2  0x00000100 in ?? ()

Thread 6 (Thread 0xb38ffb40 (LWP 3152)):
#0  0xb7782424 in __kernel_vsyscall ()
#1  0xb74acbdb in fts_sort (nitems=-1282374440, head=0xb2f02398, sp=0x3)
    at fts.c:963
#2  fts_open (argv=<optimized out>, options=-1225960704, compar=0x1)
    at fts.c:171
#3  0x0000000c in ?? ()
#4  0xffffffff in ?? ()
#5  0xb6ed5300 in ?? () from /lib/libglib-2.0.so.0
Cannot access memory at address 0xb6ec257b
(gdb) 

core #1

(gdb) thread apply all bt

Thread 7 (Thread 0xb73686c0 (LWP 3008)):
#0  0xb7729424 in __kernel_vsyscall ()
#1  0xb7453bdb in fts_sort (nitems=164164744, head=0xa1552b0, sp=0x6)
    at fts.c:963
#2  fts_open (argv=<optimized out>, options=-1226325248, compar=0x1)
    at fts.c:171
#3  0xb65efb2c in ?? () from /lib/libgtk-3.so.0
Backtrace stopped: previous frame inner to this frame (corrupt stack?)

Thread 6 (Thread 0xb38ffb40 (LWP 3010)):
#0  0xb7729424 in __kernel_vsyscall ()
#1  0xb7453bdb in fts_sort (nitems=-1282374440, head=0xb2f02398, sp=0x3)
    at fts.c:963
#2  fts_open (argv=<optimized out>, options=-1226325248, compar=0x1)
    at fts.c:171
#3  0x0000000c in ?? ()
#4  0xffffffff in ?? ()
#5  0xb6e7c300 in ?? () from /lib/libglib-2.0.so.0
Cannot access memory at address 0xb6e6957b
(gdb)