Hi, I have been experimenting with the mrtdump branch (commit cc4eee62) on Debian jessie. However, when using a moderately long filename, Bird crashes. For instance: birdc6 'mrtdump routes to "/bird/mrtdump/rib.ipv6.20160426.1209"' BIRD 1.5.0 ready. Connection closed by server. The logs are the following: bird6[8314]: Unable to open file "<too-long>" for MRT dump of table master systemd[1]: bird6.service: main process exited, code=killed, status=11/SEGV systemd[1]: Unit bird6.service entered failed state. kernel: bird6[8314]: segfault at 18 ip 00007fb05162a905 sp 00007ffe1194f5a0 error 4 in bird6[7fb051602000+76000] It looks like TM_DATETIME_BUFFER_SIZE, as used in tm_format_datetime(), is really too small (32 bytes). Also, there seems to be an issue with error handling (segfault when tm_format_datetime returns unexpected data). When defining a higher value for TM_DATETIME_BUFFER_SIZE, bird does not crash anymore, but there is certainly a better solution. Thanks, Baptiste