Zentyal 3.5 server just stops responding.

[AlexZen]

Hello, everyone! Recently I installed brand new Zentyal 3.5 (instead of Zentyal 3.2, which died after the unsuccessful try to upgrade it to 3.4). The problem is: Zentyal 3.5 stops responding at all after several hours of work. The keyboard is dead, so is the mouse, even there's no signal from the video card. Zentyal 3.2 worked fine on exactly the same hardware. Any suggestions, why this happens?

[Gary Schiltz]

I don't have an answer for you, but I would just comment that after several flawless installs of 3.4 and 3.5 in virtual machines (VMWare Fusion and VirtualBox), installing 3.5 on real server hardware was harder than I had expected. Specifically, network configuration found two devices "em0" and "em1" rather than the expected "eth0" and "eth1". After finishing configuration, they automagically got changed to eth0 and eth1. I mention this because I had previously had generic Ubuntu 12.04 installed, and had never tried 14.04 on the hardware. So, maybe you have similar problems and 14.04 drivers don't support your hardware...just a thought. Have you looked into whether 14.04 supports your hardware?

[AlexZen]

Thank you. I was told to get rid of Traffic Shaping module for a while and see if the problem persists. Also I didn't lock the server this time. Let's see if this helps.

[AlexZen]

Does Ubuntu not support hot plugging?  I connected the keyboard and the mouse, and they didn't work. So, this explains why the server wasn't responding - I simply couldn't do anything with the keyboard and the mouse, and saw a black screen, as I locked the server before unplugging input devices

But the main problem is still out there - my Zentyal 3.5 server stops responding via SSH and web interface. Internet connection drops off, too.

[StuartNaylor]

USB but not PS2

Erm dunno really you sound like hardware and I would point a finger at that.

You checked the bios for power saving settings. Also you checked it isn't the hardware grinding to a halt?

[AlexZen]

USB but not PS2

But both the keyboard and the mouse are USB.

Erm dunno really you sound like hardware and I would point a finger at that.

You checked the bios for power saving settings. Also you checked it isn't the hardware grinding to a halt?

I haven't changed a single bit of my hardware, i.e. I installed Zentyal 3.5 on the same server Zentyal 3.2 worked just fine on.

[StuartNaylor]

The only thing I am aware of is that kernel 3.13 has some driver problems with old ps2 keyboards.

Some changes where made generally and also some newer

dmesg -t | grep '^i8042'
i8042: PNP: No PS/2 controller found. Probing ports directly.
If you have a PS/2 port and get this message, add atkbd to the MODULES= line in mkinitcpio.conf and run mkinitcpio -P.

earlymodules=atkbd modules-load=atkbd

So yes there have been general linux kernel problems, dunno why its grinding to a halt though.

I think you are prob better looking at ubuntu and similar kernel faults than specifically Zentyal.

[AlexZen]

Moving back to Zentyal 3.2 solved the problem.