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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