[SOLVED] IP process is 100% CPU since last security update for Zentyal 4.1

[fpanes]

Hello everybody, pardon my poor english, I'm sorry but my first post is about an issue since I upgraded my 2 Zentyal 4.1 (production, primary AD et secondary AD) before version 4.2.

The servers are hosted on a ESXi vmWare 5.0 and the IP process is now staying at 100% causing reboot of the VNXE 3100 SAN where all my others virtuals machines are hosted.

I renice this processes but it's still high, did somebody experiment the same issues ?

Thank a lot for yours answers, it's a big pain in the a.. for the moment.

[expertgeeks]

Yes I had the same problem, it appears to be an issue with the most recent kernel. I reverted back to the previous kernel and the server is working fine once again.
As with the problem I had upgrading to linux-image-3.16.0-48-generic , I downgraded to the previous kernel image. You can do this by purging the kernel causing the problem;

Code: [Select]

sudo apt-get purge linux-image-3.16.0-52-generic and then make sure you run

Code: [Select]

sudo update-grub before rebooting. Your server should be back in action. I can't find any bug reports about this, so it may be a problem with Zentyal that doesn't affect other Linux distributions. We will need to try upgrading again when a new kernel is released.

[fpanes]

You have just saved my day !

I have downgraded to 3.16.0-51 and my servers works fine.

Thanks a lot !

[expertgeeks]

You're welcome !

[alextab]

I registered just to say thank you!

In my case my server was running high load - all due to the IP process. Also services were not auto-starting such as DNS and DHCP.

Turns out it is not easy to search on the "IP" command.

For future searchers - Zentyal 4.2 high load IP process

[neovs]

Thank you so much.

[BerT666]

Also helped in my case ;-)

I just changed a bit: Upgraded to 4.2 and afterwards purged the kernel installed while upgrade.
Works like a charm!

Thank you a lot for the tip!

Regards

Thomas

[granlac]

Hi guys,

thanks for the information!

linux-image-3.16.0-53-generic seems to broken, too. Had to purge it as well!

Regards

[expertgeeks]

Thanks for the update, saves us all having to test it out! Cheers.

[julio]

i've updated (long time ago) my servers to Ubuntu Vivid (15.04) LTS enablement stacks (actually kernel version:  3.19.0-33),
works without any issues like a charm!
https://wiki.ubuntu.com/Kernel/LTSEnablementStack

DESKTOP (if you use GUI (lxde) on server):

Code: [Select]

sudo apt-get install --install-recommends linux-generic-lts-vivid xserver-xorg-core-lts-vivid xserver-xorg-lts-vivid xserver-xorg-video-all-lts-vivid xserver-xorg-input-all-lts-vivid libwayland-egl1-mesa-lts-vivid
SERVER (if your server running headless (without GUI)):

Code: [Select]

sudo apt-get install --install-recommends linux-generic-lts-vivid

[gavin9654]

Yes I had the same problem, it appears to be an issue with the most recent kernel. I reverted back to the previous kernel and the server is working fine once again.
As with the problem I had upgrading to linux-image-3.16.0-48-generic , I downgraded to the previous kernel image. You can do this by purging the kernel causing the problem;

Code: [Select]

sudo apt-get purge linux-image-3.16.0-52-generic and then make sure you run

Code: [Select]

sudo update-grub before rebooting. Your server should be back in action. I can't find any bug reports about this, so it may be a problem with Zentyal that doesn't affect other Linux distributions. We will need to try upgrading again when a new kernel is released.

Thank you! You are a genius! I've been struggling to work out what this was all afternoon.

[acs]

I have had the same issue, however even after purging the kernel and updating grub it still boots to 3.16.0-52
and I still have the same issues. further down the grub list is /boot/vmlinuz-3.16.0-30-generic but its not at the top.

[BerT666]

Howdy,

if you proberly purged the -52 kernel, it is not possible that it is booted.
Maybe you purged another kernel-version?

BTW:
It is a good idea to purge old kernel versions, since they sometimes are wasting space in your /boot partition.
I always keep the actual kernel-version and the one before (just to be save) and purge the others...

Regards

BerT

[acs]

Hi you were corrtect in part, it had updated to -53 kernel with all the same issues! I have purged -53 and installed -51 and now it won't work with USB keyboard and mouse and the hdd light is permanently on. It also won't hand out IP address via dhcp despite the service running.

is -51 kernel compatible with zentyal 4.2? I did the same roll to -51 with another server that had 4.1.5 on and it's working great now.

[BerT666]

When looking with top / htop, what is the CPU intensive process?