Program terminated with signal 11, Segmentation fault.
#0  0x00002afbba437ae0 in __find_specmb () from /lib64/libc.so.6
(gdb) bt
#0  0x00002afbba437ae0 in __find_specmb () from /lib64/libc.so.6
#1  0x00002afbba41a391 in vfprintf () from /lib64/libc.so.6
#2  0x00002afbba44141a in vsnprintf () from /lib64/libc.so.6
#3  0x00002afbba4250a3 in snprintf () from /lib64/libc.so.6
#4  0x00002aaabd5324bb in next_channel (chan=0x2aaaac1c6620, last=0x2aaaac217820, spec=0x403ee4f0 "SIP/", exten=0x0, context=0x0, chanspy_ds=0x403ee440) from /usr/lib/asterisk/modules/app_chanspy.so
#5  0x00002aaabd532fe0 in common_exec (chan=0x2aaaac1c6620, flags=0x403ef570, volfactor=0, fd=0, mygroup=0x403ee4f7 "1546", spec=0x403ee4f0 "SIP/", exten=0x0, context=0x0) from /usr/lib/asterisk/modules/app_chanspy.so
#6  0x00002aaabd533a65 in chanspy_exec (chan=0x2aaaac1c6620, data=0x403f1610) from /usr/lib/asterisk/modules/app_chanspy.so
#7  0x00000000004819ed in pbx_extension_helper (c=0x2aaaac1c6620, con=<value optimized out>, context=0x2aaaac1c6870 "macro-bfs-monitor-group", exten=0x2aaaac1c68c0 "s", priority=2, label=<value optimized out>, 
    callerid=0x2aaaac1aac80 "105", action=E_SPAWN) at pbx.c:537
#8  0x0000000000481e23 in ast_spawn_extension (c=0x2aaabd533bc2, context=0xffffffffffffffb0 <Address 0xffffffffffffffb0 out of bounds>, exten=0x403bf6c0 "\001\200��", priority=0, callerid=<value optimized out>) at pbx.c:2317
#9  0x00002aaab753e57a in _macro_exec (chan=0x2aaaac1c6620, data=<value optimized out>, exclusive=0) from /usr/lib/asterisk/modules/app_macro.so
#10 0x00000000004819ed in pbx_extension_helper (c=0x2aaaac1c6620, con=<value optimized out>, context=0x2aaaac1c6870 "macro-bfs-monitor-group", exten=0x2aaaac1c68c0 "s", priority=1, label=<value optimized out>, 
    callerid=0x2aaaac1aac80 "105", action=E_SPAWN) at pbx.c:537
#11 0x0000000000483726 in __ast_pbx_run (c=0x2aaaac1c6620) at pbx.c:2317
#12 0x0000000000484409 in pbx_thread (data=0x2aaabd533bc2) at pbx.c:2621
#13 0x00000000004ada4c in dummy_start (data=<value optimized out>) at utils.c:912
#14 0x00002afbb9ace307 in start_thread () from /lib64/libpthread.so.0
#15 0x00002afbba4a9ded in clone () from /lib64/libc.so.6