This bug is also present on Etch with slightly different behaviour: # rrdtool create /tmp/test.rrd --start 'midnight today' --step 300 DS:a1:GAUGE:360:0:U DS:a2:GAUGE:360:0:U DS:a3:GAUGE:360:0:U DS:a4:GAUGE:360:0:U DS:a:COMPUTE:a1,a2,a3,a4,AVG DS:a_dev:COMPUTE:a1,a,-,DUP,*,a2,a,-,DUP,*,a3,a,-,DUP,*,a4,a,-,DUP,*,+,+,+ RRA:LAST:0.5:1:105120 *** glibc detected *** malloc(): memory corruption (fast): 0xb7dcd570 *** Aborted # rrdtool create /tmp/test.rrd --step 300 DS:a1:GAUGE:360:0:U DS:a2:GAUGE:360:0:U DS:a3:GAUGE:360:0:U DS:a4:GAUGE:360:0:U DS:a:COMPUTE:a1,a2,a3,a4,AVG DS:a_dev:COMPUTE:a1,a,-,DUP,*,a2,a,-,DUP,*,a3,a,-,DUP,*,a4,a,-,DUP,*,+,+,+ RRA:LAST:0.5:1:105120 Segmentation fault
Same occurs when I use the perl RRDs module from librrds-perl.
