.
Thread 1 (process 22516):
#0  0xb7ba499a in rrd_test_error () from /usr/lib/librrd.so.2
#1  0xb7bb931b in _rrd_update () from /usr/lib/librrd.so.2
#2  0xb7bbae0a in rrd_update_r () from /usr/lib/librrd.so.2
#3  0xb7bbaf03 in rrd_update () from /usr/lib/librrd.so.2
#4  0xb7be43a5 in XS_RRDs_update () from /usr/lib/perl5/auto/RRDs/RRDs.so
#5  0x080c23eb in Perl_pp_entersub ()
#6  0x080c0d49 in Perl_runops_standard ()
#7  0x0806727a in perl_run ()
#8  0x08063732 in main ()