Public bug reported: I did a nmap -P0 10.235.0.133 and got this result:
Starting Nmap 4.10 ( http://www.insecure.org/nmap/ ) at 2006-11-19 19:06 BRST Warning: Giving up on port early because retransmission cap hit. Stats: 2:19:49 elapsed; 0 hosts completed (1 up), 1 undergoing Connect() Scan Connect() Scan Timing: About 57.42% done; ETC: 21:04 (0:50:17 remaining) Stats: 2:21:27 elapsed; 0 hosts completed (1 up), 1 undergoing Connect() Scan Connect() Scan Timing: About 58.49% done; ETC: 21:05 (0:49:17 remaining) Stats: 3:01:07 elapsed; 0 hosts completed (1 up), 1 undergoing Connect() Scan Connect() Scan Timing: About 60.93% done; ETC: 21:06 (0:46:53 remaining) Stats: 3:07:20 elapsed; 0 hosts completed (1 up), 1 undergoing Connect() Scan Connect() Scan Timing: About 65.00% done; ETC: 21:08 (0:42:43 remaining) Stats: 4:17:54 elapsed; 0 hosts completed (1 up), 1 undergoing Connect() Scan Connect() Scan Timing: About 88.45% done; ETC: 21:15 (0:14:52 remaining) Stats: 5:16:41 elapsed; 0 hosts completed (1 up), 1 undergoing Connect() Scan Connect() Scan Timing: About 99.99% done; ETC: 21:23 (0:00:00 remaining) Stats: 6:17:27 elapsed; 0 hosts completed (1 up), 1 undergoing Connect() Scan Connect() Scan Timing: About 99.99% done; ETC: 21:48 (0:00:00 remaining) Stats: 7:01:05 elapsed; 0 hosts completed (1 up), 1 undergoing Connect() Scan Connect() Scan Timing: About 99.99% done; ETC: 21:55 (0:00:01 remaining) Stats: 7:13:33 elapsed; 0 hosts completed (1 up), 1 undergoing Connect() Scan Connect() Scan Timing: About 99.99% done; ETC: 22:08 (0:00:01 remaining) Stats: 7:16:36 elapsed; 0 hosts completed (1 up), 1 undergoing Connect() Scan Connect() Scan Timing: About 99.99% done; ETC: 22:11 (0:00:01 remaining) Stats: 7:20:31 elapsed; 0 hosts completed (1 up), 1 undergoing Connect() Scan Connect() Scan Timing: About 99.99% done; ETC: 22:15 (0:00:01 remaining) Note that nmap reached 99.99% of the process at 6:17. Now even 1 hour later, it stills at this stage. There is no high CPU usage at the moment. Seems to be a bug. ** Affects: nmap (Ubuntu) Importance: Undecided Status: Unconfirmed -- Stops at 99.99% https://launchpad.net/bugs/72496 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs