Failure at calloc for 'ip_seen' on KVM VPSs?

[collina]

Compiled on a KVM based VPS for Ubuntu LTS and Centos 6.4, and have zmap die at the same point every time. Problems with calloc?

root@networkresearchnotabotnet:~/zmap/src# zmap -p 80 --dryrun --verbosity=5
Aug 16 21:42:18.256 [INFO] zmap: started
Aug 16 21:42:18.379 [DEBUG] zmap: no interface provided. will use eth0
Aug 16 21:42:18.380 [DEBUG] zmap: no source IP address given. will use 176.56.238.77
Aug 16 21:42:18.380 [DEBUG] cyclic: primitive root: 977842311
Aug 16 21:42:18.381 [DEBUG] cyclic: starting point: 24354
Aug 16 21:42:18.381 [TRACE] constraint: Initializing
Aug 16 21:42:18.381 [TRACE] blacklist: blacklisting 0.0.0.0/8
Aug 16 21:42:18.381 [TRACE] blacklist: blacklisting 10.0.0.0/8
Aug 16 21:42:18.381 [TRACE] blacklist: blacklisting 100.64.0.0/10
Aug 16 21:42:18.381 [TRACE] blacklist: blacklisting 127.0.0.0/8
Aug 16 21:42:18.381 [TRACE] blacklist: blacklisting 169.254.0.0/16
Aug 16 21:42:18.381 [TRACE] blacklist: blacklisting 172.16.0.0/12
Aug 16 21:42:18.381 [TRACE] blacklist: blacklisting 192.0.0.0/24
Aug 16 21:42:18.381 [TRACE] blacklist: blacklisting 192.0.2.0/24
Aug 16 21:42:18.381 [TRACE] blacklist: blacklisting 192.88.99.0/24
Aug 16 21:42:18.381 [TRACE] blacklist: blacklisting 192.168.0.0/16
Aug 16 21:42:18.382 [TRACE] blacklist: blacklisting 192.18.0.0/15
Aug 16 21:42:18.382 [TRACE] blacklist: blacklisting 198.51.100.0/24
Aug 16 21:42:18.382 [TRACE] blacklist: blacklisting 203.0.113.0/24
Aug 16 21:42:18.382 [TRACE] blacklist: blacklisting 240.0.0.0/4
Aug 16 21:42:18.382 [TRACE] blacklist: blacklisting 255.255.255.255/32
Aug 16 21:42:18.382 [TRACE] blacklist: blacklisting 224.0.0.0/4
Aug 16 21:42:18.382 [TRACE] constraint: Optimizing constraints
Aug 16 21:42:18.383 [DEBUG] blacklist: 3702258432 addresses allowed to be scanned (86% of address space)
Aug 16 21:42:18.383 [DEBUG] send: will send from 1 address on 28233 source ports
Aug 16 21:42:18.383 [INFO] send: dryrun mode -- won't actually send packets
Aug 16 21:42:18.390 [TRACE] zmap: set thread 3124864768 affinity to core 0
Aug 16 21:42:18.390 [DEBUG] recv: thread started
Aug 16 21:42:18.390 [FATAL] recv: couldn't allocate address bitmap

[zakird]

I believe this is because you do not have enough memory. ZMap needs ~512 MB of RAM in order to keep a bitmap of hosts that have responded in order to not produce duplicates.

[collina]

That was in fact the issue, thanks!

[jhalderm]

I added a note about memory requirements to INSTALL.