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Extraits choisis du 'man ps' sur digital Unix OSF 4.0D. <defunct> semble etre
synonyme de <zombie>. Notez egalement le status U.
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R [Digital] Runnable process.
U [Digital] Uninterruptible sleeping process.
S [Digital] Process sleeping for less than about 20 seconds.
I [Digital] Idle (sleeping longer than about 20 seconds) process.
T [Digital] Stopped process.
H [Digital] Halted process.
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<defunct>
A process that has exited but whose parent process has not waited
for it.
<error>
[Digital] A process for which user area information could not be
obtained due to a shortage of system memory.
<exiting>
A process that is blocked trying to exit.
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1. [Digital] When you enter a ps command while running an application
that forks child processes, you might see some child processes listed
as being in the <defunct> state after they have exited. Processes in
this state cannot be killed until the process that forked them is
killed.
[Digital] The system puts exiting child processes in the <defunct>
state if their parent process is still running and has not caught the
SIGCHLD signal or executed a wait() system call.
[Digital] To avoid having users encounter this problem when they run
your application, make sure that your program logic either catches the
SIGCHLD signal or executes a wait() system call when spawning a child
process.
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Cordialement
Mathieu BELLEVILLE
mailto: mathieu.belleville@avions.aerospatiale.fr
"Black Holes are where God divided by zero"
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Le CULTe sur le ouebe: http://savage.iut-blagnac.fr/