Is Linux 3.13, the worst kernel version, ever? YES! It is... So, why Trust come with it? WHY!?

[Martinx - ジェームズ]

Guys,

I don't want to be rude but, Linux 3.13 sucks a lot.

I'm wondering here, for God's sake, why Ubuntu 14.04 comes with this lame
kernel? What Ubuntu Kernel Team have in mind?!

Mark Shuttlework *must say something about this situation*. What he is
gonna do? I really t want to know that.

I'm a HUGE fan of Ubuntu, and I mean it, I have no plans to switch off
Ubuntu and I'll stick with 14.04 but, definitely, Linux 3.13 was a bad, bad
choice for a LTS version like Trusty.

I'm facing a massive number of problems with this kernel, nights awake...
And I'm not alone.

---
List of problems:

http://sebastian.marsching.com/blog/archives/133-Trouble-after-installing-linux-generic-lts-trusty-in-Ubuntu-12.04-LTS.html

http://sebastian.marsching.com/blog/archives/134-Linux-KVM-Problems-with-Ubuntu-14.04-LTS-Kernel-3.13.0-30.html

http://serverfault.com/questions/598257/ubuntu-14-04-kvm-host-not-allocating-kvm-guest-correctly-high-load

http://serverfault.com/questions/609881/windows-server-2012-on-kvm-on-ubuntu-14-04-runs-well-for-a-while-and-then-slows/612084#612084

linux-image-3.13.0-29-generic - soft lockup in kvm guests:
https://bugs.launchpad.net/ubuntu/+source/linux-lts-trusty/+bug/1333553

guest hang due to missing clock interrupt:
https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1307473

[Supermicro X9DR3-F] Virtual machines hang in kernel 3.13:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1332409

KVM guests getting slow by time (Linux 3.13.0-29-generic x86_64):
https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1341195

Filled by myself - Ubuntu 14.04 + QEmu 2.0 + KSM = 1, makes Windows 2008 R2
guests to crash (BSOD):
https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1338277
---

I just installed a lot of QEmu 2.0 Hypervisors with Trusty, including a
brand new Cloud Computing with OpenStack IceHouse and, guess what?! Lots of
problems... Because of Linux 3.13.

*This is a unprecedented situation*, Canonical must provide a new Kernel
version for Trusty ASAP! This is affecting hundreds of people around the
world that are trusting in Trusty but, it is not trustable right now.   :-/

As a workaround, I backported the Kernel from Utopic, since I need the bnx2
kernel module (linux extra), I can not just use the mainline packages
as-is...

---
Manually backporting Utopic's Kernel into Trusty:

1- Add the following line to your Trusty's /etc/apt/sources.list:

deb-src http://us.archive.ubuntu.com/ubuntu/ utopic main restricted
universe multiverse

2- Run:

apt-get update
apt-get install fakeroot
apt-get build-dep linux
mkdir linux/source -p
cd linux/source
apt-get source linux
cd linux-3.16.0
dpkg-buildpackage -rfakeroot -uc -us

3- Install Linux via "dpkg -i linux..."
---

IMPORTANT NOTE: I still did not tested this Linux 3.16 from Utopic on
Trusty but, at this point, anything is better than Linux 3.13. I know that
my environment is terrible with 3.13 and I'll report here if it becomes
better with Linux 3.16.

Again, Canonical, please, say something about this.

As I said, I'm a huge fan of Ubuntu and I'm waiting to see what Canonical
will do about this.... Canonical, your turn.

Best Regards,
Thiago Martins
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