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Operating Systems
AIX
Defunct process with dtlogin
Post 302519178 by Castelior on Tuesday 3rd of May 2011 09:12:01 AM
05-03-2011
I'm coming back with my problem. 
stopsrc and startsrc, stop the defunct process but after a while (one minute) some other defunct process are coming back.
Do you have any ideas why they come back?
Quote:
root@gen1445/home/root> ps -ef|grep defunct
root 66686 14450 1 0:00 <defunct>
root 77106 14450 0 0:00 <defunct>
root@gen1445/home/root> ps -ef|grep 14450
root 14450 8046 0 14:52:52 - 0:00 /usr/dt/bin/dtlogin
root 66686 14450 1 0:00 <defunct>
root 77106 14450 0 0:00 <defunct>
root 98148 51824 0 14:56:00 pts/5 0:00 grep 14450
root@gen1445/home/root> /usr/bin/stopsrc -s dtsrc; sleep 3 ; /usr/bin/startsrc -s dtsrc (stop/start of dtlogin)
0513-044 L'arrêt du sous-système dtsrc a été demandé.
0513-059 Le sous-système dtsrc a été démarré. PID du sous-système : 48426.
root@gen1445/home/root> ps -ef|grep defunct
root@gen1445/home/root> date
mar 3 mai 14:58:11 DFT 2011
root@gen1445/home/root> ps -ef|grep defunct
root 47870 51824 0 14:58:17 pts/5 0:00 grep defunct
root@gen1445/home/root> ps -ef|grep defunct
root 63560 51824 0 14:58:26 pts/5 0:00 grep defunct
root@gen1445/home/root> ps -ef|grep defunct
root 102110 48426 1 0:00 <defunct>
root@gen1445/home/root> ps -ef|grep defunct
root 62554 51824 0 14:58:49 pts/5 0:00 grep defunct
root 102110 48426 1 0:00 <defunct>
root@gen1445/home/root> ps -ef|grep defunct
root 45718 51824 0 14:59:06 pts/5 0:00 grep defunct
root 79850 48426 0 0:00 <defunct>
root 102110 48426 1 0:00 <defunct>
root@gen1445/home/root> ps -ef|grep 48426
root 48426 8046 0 14:57:50 - 0:00 /usr/dt/bin/dtlogin
root 79850 48426 0 0:00 <defunct>
root 102110 48426 1 0:00 <defunct>
root 66686 14450 1 0:00 <defunct>
root 77106 14450 0 0:00 <defunct>
root@gen1445/home/root> ps -ef|grep 14450
root 14450 8046 0 14:52:52 - 0:00 /usr/dt/bin/dtlogin
root 66686 14450 1 0:00 <defunct>
root 77106 14450 0 0:00 <defunct>
root 98148 51824 0 14:56:00 pts/5 0:00 grep 14450
root@gen1445/home/root> /usr/bin/stopsrc -s dtsrc; sleep 3 ; /usr/bin/startsrc -s dtsrc (stop/start of dtlogin)
0513-044 L'arrêt du sous-système dtsrc a été demandé.
0513-059 Le sous-système dtsrc a été démarré. PID du sous-système : 48426.
root@gen1445/home/root> ps -ef|grep defunct
root@gen1445/home/root> date
mar 3 mai 14:58:11 DFT 2011
root@gen1445/home/root> ps -ef|grep defunct
root 47870 51824 0 14:58:17 pts/5 0:00 grep defunct
root@gen1445/home/root> ps -ef|grep defunct
root 63560 51824 0 14:58:26 pts/5 0:00 grep defunct
root@gen1445/home/root> ps -ef|grep defunct
root 102110 48426 1 0:00 <defunct>
root@gen1445/home/root> ps -ef|grep defunct
root 62554 51824 0 14:58:49 pts/5 0:00 grep defunct
root 102110 48426 1 0:00 <defunct>
root@gen1445/home/root> ps -ef|grep defunct
root 45718 51824 0 14:59:06 pts/5 0:00 grep defunct
root 79850 48426 0 0:00 <defunct>
root 102110 48426 1 0:00 <defunct>
root@gen1445/home/root> ps -ef|grep 48426
root 48426 8046 0 14:57:50 - 0:00 /usr/dt/bin/dtlogin
root 79850 48426 0 0:00 <defunct>
root 102110 48426 1 0:00 <defunct>
Do you have any ideas why they come back?
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LEARN ABOUT ULTRIX
systemd-volatile-root.service
SYSTEMD-VOLATILE-ROOT.SERVICE(8) systemd-volatile-root.service SYSTEMD-VOLATILE-ROOT.SERVICE(8) NAME
systemd-volatile-root.service, systemd-volatile-root - Make the root file system volatile SYNOPSIS
systemd-volatile-root.service /lib/systemd/systemd-volatile-root DESCRIPTION
systemd-volatile-root.service is a service that replaces the root directory with a volatile memory file system ("tmpfs"), mounting the original (non-volatile) /usr inside it read-only. This way, vendor data from /usr is available as usual, but all configuration data in /etc, all state data in /var and all other resources stored directly under the root directory are reset on boot and lost at shutdown, enabling fully stateless systems. This service is only enabled if full volatile mode is selected, for example by specifying "systemd.volatile=yes" on the kernel command line. This service runs only in the initial RAM disk ("initrd"), before the system transitions to the host's root directory. Note that this service is not used if "systemd.volatile=state" is used, as in that mode the root directory is non-volatile. SEE ALSO
systemd(1), systemd-fstab-generator(8), kernel-command-line(7) systemd 237 SYSTEMD-VOLATILE-ROOT.SERVICE(8)