BTW, the output "ps" output diff looks like this on i386:
$ diff -U0 ps1.txt ps2.txt
--- ps1.txt 2007-10-15 16:13:06.000000000 +0200
+++ ps2.txt 2007-10-15 16:13:25.000000000 +0200
@@ -130 +129,0 @@
-root 31704 31643 0 16:10 ? 00:00:00 [login] <defunct>
Alexander Kriegisch:
>> Are you able to reproduce it on i386?
>
> Yes, if I call do this during the telnet session to my Linux VM:
>
> $ sudo ./busybox setconsole -r
> $ sudo ./busybox setconsole
> $ exit
> logout
> (session hangs)
>
>> Can you verify this theory by looking at ps output? These orphaned
>> children of ash will show up as children of init (they are reparented
>> to init because their original parent died).
>
> I compared ps output before the telnet session and after "exit" with
> hanging client, but *before* the client is closed manualle, because then
> the difference is gone again:
>
> $ ps | grep -v ps > ps1.txt
> $ ps | grep -v ps > ps2.txt
> $ diff -U0 ps1.txt ps2.txt
> --- ps1.txt Mon Oct 15 15:55:52 2007
> +++ ps2.txt Mon Oct 15 15:56:19 2007
> @@ -41,0 +42 @@
> + 1855 root Z [sh]
>
> the above output was generated on my embedded system again, BTW. But it
> should be the same on i386 where I can also reproduce it, see further above.
>
>> Do you think it may be useful to add telnet switch to close
>> connections when ash dies?
>
> If there is no other way to fix it, yes. I would prefer telnetd being
> able to handle the situation, though. The decisive hint would be
> setconsole, as mentioned: In my shell profile on the embedded system
> there is this (shortened):
>
> tty=${tty##*-> }
> echo "tty is \"$tty\""
> # This prints something like: tty is "/dev/pts/0"
> setconsole $tty
>
> When I don't do setconsole or call setconsole -r again before exiting,
> the problem does not occur.
>
> Regards
> --
> Alexander Kriegisch
>
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