Error Message

Everytime i start up my server i get this error message, everything seems to work fine, I'm just a little concerned

]2;screen]2;[screen 1: java] java.io.IOException: Cannot run program "sh": java.io.IOException: error=12, Cannot allocate memory
at java.lang.ProcessBuilder.start(ProcessBuilder.java:475)
at java.lang.Runtime.exec(Runtime.java:610)
at java.lang.Runtime.exec(Runtime.java:483)
at jline.UnixTerminal.exec(UnixTerminal.java:297)
at jline.UnixTerminal.exec(UnixTerminal.java:282)
at jline.UnixTerminal.stty(UnixTerminal.java:273)
at jline.UnixTerminal.initializeTerminal(UnixTerminal.java:77)
at jline.Terminal.setupTerminal(Terminal.java:75)
at jline.Terminal.getTerminal(Terminal.java:26)
at jline.ConsoleReader.<init>(ConsoleReader.java:191)
at jline.ConsoleReader.<init>(ConsoleReader.java:186)
at jline.ConsoleReader.<init>(ConsoleReader.java:174)
at net.minecraft.server.MinecraftServer.<init>(MinecraftServer.java:65)
at net.minecraft.server.MinecraftServer.main(MinecraftServer.java:391)
at org.bukkit.craftbukkit.Main.main(Main.java:83)
Caused by: java.io.IOException: java.io.IOException: error=12, Cannot allocate memory
at java.lang.UNIXProcess.<init>(UNIXProcess.java:164)
at java.lang.ProcessImpl.start(ProcessImpl.java:81)
at java.lang.ProcessBuilder.start(ProcessBuilder.java:468)
... 14 more

 

some more people had this error:

http://forums.bukkit.org/threads/server-startup-error-12-cannot-allocate-memory-build-493.7481/
http://forums.bukkit.org/threads/craftbukkit-ram-hog.8655/#post-131542

 

Thanks for the help hopefully can get this fixed now