[X2Go-Dev] [X2Go-User] Japsand Maintenance Aftermath a.k.a. "Lessons Learned"

[Robert Dinse]

      It would seem the Wiki is still down, when I try to go to:

 	http://wiki.x2go.org/doku.php/doc:usage:pyhoca-gui

      I get cannot connect to server.

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On Wed, 24 Jun 2015, Mihai Moldovan wrote:

> Date: Wed, 24 Jun 2015 23:25:33 +0200
> From: Mihai Moldovan <ionic at ionic.de>
> Reply-To: "x2go-user at lists.x2go.org" <x2go-user at lists.x2go.org>
> To: "x2go-project at lists.x2go.org" <x2go-project at lists.x2go.org>,
>     "x2go-dev at lists.x2go.org" <x2go-dev at lists.x2go.org>,
>     "x2go-user at lists.x2go.org" <x2go-user at lists.x2go.org>
> Subject: [X2Go-User] Japsand Maintenance Aftermath a.k.a. "Lessons Learned"
> 
> Hi
>
> Due to a hanging rm process, we had to restart the server today.
>
> After rebooting the machine, it was decided to also update the system to the
> latest packages version, but still staying on Debian Wheezy (for now.)
>
> The server is using a custom kernel module provided by Realtek for its RTL8168
> ethernet NIC. An in-kernel driver is available, but proved to be too unreliable,
> leading to frequent network outages and even machine crashes whenever the
> network IO load was higher than a few hundred KB/s. The hosting provider has a
> wiki entry for this issue at this location:
> http://wiki.hetzner.de/index.php/Installation_des_r8168-Treibers/en
>
> Unfortunately, the current driver version as provided by Realtek, 8.040, seems
> to be incompatible with the old 3.2.0-4-amd64 (3.2.68-1+deb7u2) kernel provided
> by Debian.
>
> As of writing this, I do not know what happened exactly, but most likely the
> module caused a kernel panic during bootup.
>
> Reverting to an older version, 8.037, fixed this issue and let the server boot
> up correctly again. For future maintenance work, please use this older version,
> at least on Debian Wheezy.
>
> I put the module source code into /usr/src and created a symlink from
> /usr/src/r8168-current to /usr/src/r8168-8.037.00.
>
> ---
>
> Other updated packages include Java (version 7 co-installed, the "alternatives"
> symlink now point to version 7 instead of 6) and Jenkins, including its plugins.
>
> A test build run suggests the Jenkins update was successful.
>
>
>
> Mihai
>
>