Re: [X2Go-Dev] Bug#471: Bug#471: ATTENTION @Mike#1 - serious bug in x2goserver upgrade script (debian wheezy+squeeze)
Further Info:
1) I'm guessing it's a race condition, with two instances of
x2gocleansessions running simpultaneously and locking each other up:
e.g. sample output:
ps ax|grep clean
1995 ?S 0:36 /usr/bin/perl /usr/sbin/x2gocleansessions
16142 pts/0S+ 0:05 /usr/bin/perl /usr/sbin/x2gocleansessions
2) The kill command given below in my previous e-mail doesn't work.
What worked was this:
ps ax | grep x2gocleansessions | grep perl \
| awk ' { print $1 }' | xargs -n 1 kill
(the backslash is so it can be broken up in two lines)
You have to run this in a second terminal session (as root) while the
apt-get upgrade process is stuck in the first.
It will then continue without reporting an error.
-Stefan
Am 03.04.2014 09:52, schrieb Stefan Baur:
Gah. E_NOTENOUGHCAFFEINE. This was supposed to go to the list and
bugtracker as well.
Original-Nachricht
Betreff: Re: [X2Go-Dev] Bug#471: ATTENTION @Mike#1 - serious bug in
x2goserver upgrade script (debian wheezy+squeeze)
Datum: Thu, 03 Apr 2014 09:50:09 +0200
Von: Stefan Baur newsgroups.ma...@stefanbaur.de
Antwort an: Stefan Baur newsgroups.ma...@stefanbaur.de,
4...@bugs.x2go.org, x2go-dev@lists.berlios.de
An: Mike Gabriel mike.gabr...@das-netzwerkteam.de
Addendum:
This is part of the ps ax output on one of the affected machines:
2563 pts/2S+ 0:00 apt-get upgrade -y
4958 pts/1S+ 0:00 /usr/bin/perl -w /usr/share/debconf/frontend
/var/lib/dpkg/info/x2goserver.postinst configure 4.0.1.13-0x2go1+
4962 pts/1Z+ 0:00 [x2goserver.post] defunct
5004 pts/1S+ 0:00 /usr/bin/perl /usr/sbin/x2gocleansessions
manually killing x2gocleansessions ( kill $(pidof x2gocleansessions))
seems to be a workaround, but still, we need a real fix in the form of
an updated package.
-Stefan
Am 03.04.2014 08:47, schrieb Stefan Baur:
Package: x2goserver
Severity: grave
Version: 4.0.1.14
Hi Mike,
this is happening on
x2goserver (4.0.1.14-0x2go1+git20140402.842+squeeze.main.1)
as well.
Please help! All my machines are stuck in the upgrade process! This is
not good!
-Stefan
Original-Nachricht
Betreff: [X2Go-User] Unable to upgrade
Datum: Wed, 2 Apr 2014 19:14:53 +0300
Von: Panayotis Katsaloulis panayo...@panayotis.com
An: x2go-u...@lists.berlios.de
Hello all!
I have installed x2go, I can connect - everything is fine.
In the past I think there was a problem when I tried to launch a client
(as xterm session), and which I was unable to properly close, so I
forced close it.
The problem is that I am unable to upgrade through apt-get upgrade though.
Now when I try to upgrade I get this message:
Processing triggers for menu (2.1.46) ...
Setting up x2goserver (4.0.1.14-0x2go1+git20140402.842+wheezy.main.1) ...
Group x2gouser already exists.
User x2gouser already exists.
[info] Cleaning up stale X2Go sessions..
… and the screen remains like this forever.
The uname -a command produces the following result:
Linux danube 3.13-1-amd64 #1 SMP Debian 3.13.7-1 (2014-03-25) x86_64
GNU/Linux
Any help?
--
Panayotis
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[X2Go-Dev] Bug#471: Bug#471: ATTENTION @Mike#1 - serious bug in x2goserver upgrade script (debian wheezy+squeeze)
Hi Stefan, hi Panayotis On Do 03 Apr 2014 09:52:58 CEST, Stefan Baur wrote: Addendum: This is part of the ps ax output on one of the affected machines: 2563 pts/2S+ 0:00 apt-get upgrade -y 4958 pts/1S+ 0:00 /usr/bin/perl -w /usr/share/debconf/frontend /var/lib/dpkg/info/x2goserver.postinst configure 4.0.1.13-0x2go1+ 4962 pts/1Z+ 0:00 [x2goserver.post] defunct 5004 pts/1S+ 0:00 /usr/bin/perl /usr/sbin/x2gocleansessions manually killing x2gocleansessions ( kill $(pidof x2gocleansessions)) seems to be a workaround, but still, we need a real fix in the form of an updated package. -Stefan Can you please: o upgrade to 4.0.1.14 o killall x2gocleansessions once the init script hangs during upgrade o replace /usr/sbin/x2gocleansessions by this file [1] o sudo service x2goserver start o now it should not hang... Sorry, I forgot one cherry-pick to the release/4.0.1.x branch in x2goserver.git. [1] http://code.x2go.org/gitweb?p=x2goserver.git;a=blob;f=x2goserver/sbin/x2gocleansessions;h=7fc5e8a428bcbd7867e2083f897915a2b286b32b;hb=336917af0dc087e4540fb3d55eb501d2fa4349be Greets, Mike -- DAS-NETZWERKTEAM mike gabriel, herweg 7, 24357 fleckeby fon: +49 (1520) 1976 148 GnuPG Key ID 0x25771B31 mail: mike.gabr...@das-netzwerkteam.de, http://das-netzwerkteam.de freeBusy: https://mail.das-netzwerkteam.de/freebusy/m.gabriel%40das-netzwerkteam.de.xfb pgpVihWriEd5q.pgp Description: Digitale PGP-Signatur ___ X2Go-Dev mailing list X2Go-Dev@lists.berlios.de https://lists.berlios.de/mailman/listinfo/x2go-dev
[X2Go-Dev] Bug#471: Bug#471: ATTENTION @Mike#1 - serious bug in x2goserver upgrade script (debian wheezy+squeeze)
Am 03.04.2014 10:19, schrieb Mike Gabriel:
This is part of the ps ax output on one of the affected
machines:
2563 pts/2S+ 0:00 apt-get upgrade -y 4958 pts/1S+
0:00 /usr/bin/perl -w /usr/share/debconf/frontend
/var/lib/dpkg/info/x2goserver.postinst configure
4.0.1.13-0x2go1+ 4962 pts/1Z+ 0:00 [x2goserver.post]
defunct 5004 pts/1S+ 0:00 /usr/bin/perl
/usr/sbin/x2gocleansessions
Can you please:
o upgrade to 4.0.1.14
That is actually what I was doing - no idea why the ps output suggests
that the 4.0.1.13-postinst is being called.
o killall x2gocleansessions once the init script hangs during
upgrade
I used
ps ax | grep x2gocleansessions | grep perl \
| awk ' { print $1 }' | xargs -n 1 kill
instead as I came up with that before you replied.
(I wasn't sure if killall does more nasty things, and the system I was
trying it on was already b0rked enough.)
... so I skipped this part ...
o replace /usr/sbin/x2gocleansessions by this file [1] o sudo
service x2goserver start
... because this happens immediately after the kill:
o now it should not hang...
Sorry, I forgot one cherry-pick to the release/4.0.1.x branch in
x2goserver.git.
Gna. Gnagnagna. :-/
-Stefan
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[X2Go-Dev] Bug#471: Bug#471: ATTENTION @Mike#1 - serious bug in x2goserver upgrade script (debian wheezy+squeeze)
On Do 03 Apr 2014 10:47:34 CEST, Stefan Baur wrote: ... because this happens immediately after the kill: o now it should not hang... Does service x2goserver start now work? Does the system reboot without hanging? Mike -- DAS-NETZWERKTEAM mike gabriel, herweg 7, 24357 fleckeby fon: +49 (1520) 1976 148 GnuPG Key ID 0x25771B31 mail: mike.gabr...@das-netzwerkteam.de, http://das-netzwerkteam.de freeBusy: https://mail.das-netzwerkteam.de/freebusy/m.gabriel%40das-netzwerkteam.de.xfb pgpn1ctZfn6dp.pgp Description: Digitale PGP-Signatur ___ X2Go-Dev mailing list X2Go-Dev@lists.berlios.de https://lists.berlios.de/mailman/listinfo/x2go-dev
[X2Go-Dev] Bug#471: Bug#471: ATTENTION @Mike#1 - serious bug in x2goserver upgrade script (debian wheezy+squeeze)
Hi Stefan, On Do 03 Apr 2014 11:41:37 CEST, Stefan Baur wrote: Am 03.04.2014 11:31, schrieb Mike Gabriel: On Do 03 Apr 2014 10:47:34 CEST, Stefan Baur wrote: ... because this happens immediately after the kill: o now it should not hang... Does service x2goserver start now work? Does the system reboot without hanging? Seems to work just fine here. /etc/init.d/x2goserver start squeeze: Cleaning up stale X2Go sessions.. And returns to the prompt immediately. wheezy: [info] Cleaning up stale X2Go sessions.. And returns to the prompt immediately. I rebooted my test machines (users wouldn't be happy about unscheduled reboots on the production ones) and it worked, too. -Stefan Ok. Same here. Packages (4.0.1.15) are building on jenkins.x2go.org... (Lauchpad/Ubuntu builds will follow soon). Mike -- DAS-NETZWERKTEAM mike gabriel, herweg 7, 24357 fleckeby fon: +49 (1520) 1976 148 GnuPG Key ID 0x25771B31 mail: mike.gabr...@das-netzwerkteam.de, http://das-netzwerkteam.de freeBusy: https://mail.das-netzwerkteam.de/freebusy/m.gabriel%40das-netzwerkteam.de.xfb pgpNq5kwwQqn5.pgp Description: Digitale PGP-Signatur ___ X2Go-Dev mailing list X2Go-Dev@lists.berlios.de https://lists.berlios.de/mailman/listinfo/x2go-dev
[X2Go-Dev] Bug#471: Bug#471: ATTENTION @Mike#1 - serious bug in x2goserver upgrade script (debian wheezy+squeeze)
Am 03.04.2014 11:43, schrieb Mike Gabriel: Packages (4.0.1.15) are building on jenkins.x2go.org... (Lauchpad/Ubuntu builds will follow soon). Build failed. :-( What's wrong? -Stefan ___ X2Go-Dev mailing list X2Go-Dev@lists.berlios.de https://lists.berlios.de/mailman/listinfo/x2go-dev
Re: [X2Go-Dev] Bug#471: Bug#471: ATTENTION @Mike#1 - serious bug in x2goserver upgrade script (debian wheezy+squeeze)
Am 03.04.2014 10:13, schrieb Stefan Baur:
ps ax | grep x2gocleansessions | grep perl \
| awk ' { print $1 }' | xargs -n 1 kill
Yep, can confirm. Hangs the whole update process.
Just killed the x2gocleansessions process. Btw.
the awk command above did not work on Kubuntu 13.10.
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