bash processes <defunct> after ssh session disconnection
burning shadow
burning.shadow@gmail.com
Wed Sep 6 15:18:00 GMT 2006
I figured out this happens only if something was run from bash. For
example, irssi. If disconnection occured when there was only bash
active, it does not become <defunct> but stays forever with flag 'I'
in processes.
On 8/30/06, burning shadow <burning.shadow@gmail.com> wrote:
> Since cygwin1.dll version 1.5.20 I get bash processes became <defunct>
> sometimes after SSH session disconnects. For example, today there was
> a network problem and my SSH session got broken, after I reconnected,
> there was 1 <defunct> process. Sometimes this does not happen. All
> components I am using are updated to latest release available.
>
> This is something to show what is happening:
>
> shadow@loshadka:~$ ps -a
> PID PPID PGID WINPID TTY UID STIME COMMAND
> 1588 1 1588 1588 ? 18 Aug 29 /usr/bin/cygrunsrv
> 1640 1588 1640 1488 ? 18 Aug 29 /usr/sbin/sshd
> 1532 1640 1532 1228 ? 18 12:37:45 <defunct>
> 1576 1640 1576 1676 ? 18 12:22:09 <defunct>
> I 1136 1 1136 1748 3 1000 14:11:20 /usr/bin/bash
> 1496 1516 1496 1568 4 1000 16:58:58 /usr/bin/bash
> 1088 1496 1088 1644 4 1000 17:08:08 /usr/bin/ps
> shadow@loshadka:~$ kill -9 1136
> -bash: kill: (1136) - No such process
> shadow@loshadka:~$ /bin/kill.exe -f 1136
> kill: couldn't open pid 1748
> shadow@loshadka:~$ /bin/kill.exe -f 1748
> kill: couldn't open pid 1748
> shadow@loshadka:~$ kill -9 1532
> -bash: kill: (1532) - No such process
> shadow@loshadka:~$ /bin/kill.exe -f 1532
> kill: couldn't open pid 1228
> shadow@loshadka:~$ /bin/kill.exe -f 1228
> kill: couldn't open pid 1228
> shadow@loshadka:~$ ps -W |grep -e bash -e defunct
> 1532 1640 1532 1228 ? 18 12:37:45 <defunct>
> 1576 1640 1576 1676 ? 18 12:22:09 <defunct>
> I 1136 1 1136 1748 3 1000 14:11:20 /usr/bin/bash
> 1496 1516 1496 1568 4 1000 16:58:58 /usr/bin/bash
> shadow@loshadka:~$ pslist |grep bash
> bash 1620 8 4 111 2208 0:00:00.350 5:48:55.546
> bash 588 8 4 111 2208 0:00:00.120 5:04:13.920
> bash 1568 8 4 123 2236 0:00:00.310 0:23:27.237
> bash 1524 8 2 72 1532 0:00:00.040 0:00:00.070
> bash 1664 8 2 55 1456 0:00:00.030 0:00:00.040
>
> Note: pslist is an external utility from sysinternals.
>
> shadow@loshadka:~$ type pslist
> pslist is /d/tools/bin/pslist
>
> I also want to mention that before 1.5.20 bash processes just remained
> in memory and I had to kill them manually. It would be much better if
> they'd got killed upon SSH disconnection, like it happens in normal
> unix environment.
>
>
>
--
Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
Problem reports: http://cygwin.com/problems.html
Documentation: http://cygwin.com/docs.html
FAQ: http://cygwin.com/faq/
More information about the Cygwin
mailing list