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Yet Another nohup question...

 
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Top Forums UNIX for Dummies Questions & Answers Yet Another nohup question...
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Old 06-11-2008
Data Yet Another nohup question...
I am running a cobbled upnp sample program from /etc/rc.local with nohup. It is fine except it uses almost 90% CPU. If I stop it and run it from a shell it uses essentially no CPU as it should. It does have a little debug shell and in debugging I noticed a huge nohup.out file that it is apparently in a loop saying more or less "bad command".

So, the program thinks it is getting input and responding. Although there is no input that I know of and redirecting stdin doesn't help.

Any ideas on what might be going on or a simple way to fix it?

(I tried `nice` might mitigate the scheduling with other tasks but doesn't solve the problem)

Thanks,

jv
 
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LEARN ABOUT NETBSD

nohup

NOHUP(1)						    BSD General Commands Manual 						  NOHUP(1)

NAME

     nohup -- invoke a command immune to hangups

SYNOPSIS

     nohup utility [arg ...]

DESCRIPTION

     The nohup command allows the specified utility to be protected from termination if the user should become logged out (for example, due to a
     modem line or TCP/IP connection being dropped).  To do this, nohup sets the SIGHUP signal(3) (``terminal line hangup'') to be ignored, then
     executes utility along with any arguments.

     If the standard output is a terminal, the standard output is appended to the file nohup.out in the current directory.  If standard error is a
     terminal, it is directed to the same place as the standard output.  If the output file nohup.out cannot be created in the current directory,
     nohup attempts to create the file in the user's home directory.  If the file nohup.out cannot be created, either in the current directory or
     the user's home directory, nohup will exit without invoking utility, with an exit value as described below.

ENVIRONMENT

     The following variable is used by nohup.

     HOME  User's home directory.

EXIT STATUS

     The nohup utility exits with one of the following values:

     126     The utility was found but could not be invoked.

     127     The utility could not be found or an error occurred in nohup.

     Otherwise, the exit status of nohup will be that of utility.

SEE ALSO

     signal(3)

STANDARDS

     The nohup command is expected to be IEEE Std 1003.2 (``POSIX.2'') compatible.

BSD
								   July 15, 2005							       BSD