#0  0x0087a7a2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
#1  0x002103ce in __lll_mutex_lock_wait () from /lib/tls/libc.so.6
#2  0x001b89c9 in _L_mutex_lock_1945 () from /lib/tls/libc.so.6
#3  0xb75f4c32 in ?? ()
#4  0xb75f4718 in ?? ()
#5  0x009017e9 in fr_hash_table_finddata (ht=0xfffffffc, data=0x261ff4) at hash.c:491
#6  0x001b69dd in localtime_r () from /lib/tls/libc.so.6
#7  0x00904647 in vp_prints_value (out=0xb75f4c30 "", outlen=1008, vp=0x2103ce, delimitst=1) at print.c:267
#8  0x08053a28 in radius_exec_program (cmd=0x8dcae28 "/usr/local/freeradius/scripts/billing.pl", request=0xb4c00768, exec_wait=0, user_msg=0x0, msg_len=0,
    input_pairs=0xb4a03220, output_pairs=0x0, shell_escape=1) at exec.c:330
#9  0x003dae26 in exec_dispatch (instance=0x8dcae00, request=0xb4c00768) at rlm_exec.c:315
#10 0x0805bb8c in modcall (component=3, c=0xfffffffc, request=0xb4c00768) at modcall.c:285
#11 0x0805a91b in indexed_modcall (comp=3, idx=0, request=0xb4c00768) at modules.c:541
#12 0x0805b6b0 in module_accounting (acct_type=0, request=0xb4c00768) at modules.c:1221
#13 0x0804dda7 in rad_accounting (request=0xb4c00768) at acct.c:93
#14 0x08065f1f in radius_handle_request (request=0xb4c00768, fun=0x804dd0c <rad_accounting>) at event.c:3027
#15 0x0805fc3a in request_handler_thread (arg=0x8dd9060) at threads.c:490
#16 0x00a01341 in start_thread () from /lib/tls/libpthread.so.0
#17 0x002036fe in clone () from /lib/tls/libc.so.6
