New 2.6.32 Kernel for Proxmox VE 1.9 stable

martin

martin

Proxmox Staff Member
Staff member
Apr 28, 2005
754
1,719
223
We just moved our latest kernel to the stable repository. This one is based on the latest stable OpenVZ kernel.

Release notes

- pve-kernel-2.6.32 (2.6.32-55+ovzfix-2)

  • update to vzkernel-2.6.32-042stab049.6.src.rpm
  • do not disable CONFIG_RT_GROUP_SCHED (use standard openvz setting)
  • remove intel IDE-R support patches (now in upstream)
  • enable usbip module
  • use ARECA RAID card driver from upstream kernel

__________________
Best regards,
Martin Maurer
 
In this kernel i still have problem with very slow fsync/sec. And the virtual machine write speed is horibble on every server installation
Where is the problem?

root@prox-test:~# pveperf
CPU BOGOMIPS: 7599.66
REGEX/SECOND: 425773
HD SIZE: 457.43 GB (/dev/mapper/prox--test-root)
BUFFERED READS: 108.58 MB/sec
AVERAGE SEEK TIME: 13.15 ms
FSYNCS/SECOND: 58.25
DNS EXT: 830.41 ms
DNS INT: 1.21 ms (wg)
root@prox-test:~# uname -a
Linux prox-test 2.6.32-7-pve #1 SMP Mon Feb 13 07:33:21 CET 2012 x86_64 GNU/Linux

vs

root@prox-test:~# pveperf
CPU BOGOMIPS: 7599.52
REGEX/SECOND: 407166
HD SIZE: 457.43 GB (/dev/mapper/prox--test-root)
BUFFERED READS: 123.10 MB/sec
AVERAGE SEEK TIME: 13.42 ms
FSYNCS/SECOND: 966.31
DNS EXT: 274.72 ms
DNS INT: 1.18 ms (wg)
root@prox-test:~# uname -a
Linux prox-test 2.6.18-6-pve #1 SMP Mon Feb 13 07:33:21 CET 2012 x86_64 GNU/Linux
 
seems you are using ext4 instead of the default ext3.?
 
Anyone know if IPv6+venet works for OpenVZ containers with this kernel? I'm currently sticking to the old 2.6.24-12-pve kernel due to this issue.
 
You are right. Thanx a lot. It looks promising with ext3 now
 
Is there really so big difference between ext3 and ext4 performance in OpenVZ? I am using ext4 now because I was hoping for better performance, but have not done extensive testing... so you are saying that I will get significantly better performance if I put the containers on ext3?
 
so far I always see better performance with ext3. but feel free to do your own benchmarks and report it. but not under this thread as this one is about a new kernel.
 
martin said:
We just moved our latest kernel to the stable repository. This one is based on the latest stable OpenVZ kernel.

Release notes

- pve-kernel-2.6.32 (2.6.32-55+ovzfix-2)

  • update to vzkernel-2.6.32-042stab049.6.src.rpm
  • do not disable CONFIG_RT_GROUP_SCHED (use standard openvz setting)
  • remove intel IDE-R support patches (now in upstream)
  • enable usbip module
  • use ARECA RAID card driver from upstream kernel

__________________
Best regards,
Martin Maurer
Click to expand...


Hi,

First of all many thanks for such a good product.

I am experiencing some strange behavior with the new kernel 2.6.32-7 with some Windows Server 2008 R2 Machines. Some Applications in 32bit mode do not run properly. They start and lock the cpu for 100%. On 1 application it tells me "Unable to create com component, because of missing permission. I had this phenomena on 2 machines with different 32 Bit Applications. I tried everything (FS check, Deinstalling AV, Windows Updates, Security Permissions) and was minutes before image restore of the machine as I tried to boot with 2.6.32-4 kernel. And voila the problem was not there...
Maybe some of you have made similar experiences with the new kernel.
Regards
Eike
 
oxygene said:
Hi,

First of all many thanks for such a good product.

I am experiencing some strange behavior with the new kernel 2.6.32-7 with some Windows Server 2008 R2 Machines. Some Applications in 32bit mode do not run properly. They start and lock the cpu for 100%. On 1 application it tells me "Unable to create com component, because of missing permission. I had this phenomena on 2 machines with different 32 Bit Applications. I tried everything (FS check, Deinstalling AV, Windows Updates, Security Permissions) and was minutes before image restore of the machine as I tried to boot with 2.6.32-4 kernel. And voila the problem was not there...
Maybe some of you have made similar experiences with the new kernel.
Regards
Eike
Click to expand...

Hello,

I had the same problem today with a Windows 2003 R2 Guest.

I solved it by disabling DEP in Windows (boot.ini /Noexecute=alwaysoff don´t know how to do it in Windows 2008).

Now everything works wonderful and fast.

Greetings
macday

...but still it is strange...
 
Last edited:
Hello,

i have installed the new Kernel now and i when i want to reboot i cant see the new Kernel in the list?! I can only see the old kernel.

root#machinename pveversion -v
pve-manager: 1.9-26 (pve-manager/1.9/6567)
running kernel: 2.6.32-4-pve
proxmox-ve-2.6.32: 1.9-55+ovzfix-2
pve-kernel-2.6.32-4-pve: 2.6.32-33
pve-kernel-2.6.32-7-pve: 2.6.32-55+ovzfix-2
qemu-server: 1.1-32
pve-firmware: 1.0-15
libpve-storage-perl: 1.0-19
vncterm: 0.9-2
vzctl: 3.0.29-3pve1
vzdump: 1.2-16
vzprocps: 2.0.11-2
vzquota: 3.0.11-1dso1
pve-qemu-kvm: 0.15.0-2
ksm-control-daemon: 1.0-6

How can i change the kernel that i can boot on it? What file i must modify?

Thank You!
MELISA
 
melisa24 said:
Hello,

i have installed the new Kernel now and i when i want to reboot i cant see the new Kernel in the list?! I can only see the old kernel.

root#machinename pveversion -v
pve-manager: 1.9-26 (pve-manager/1.9/6567)
running kernel: 2.6.32-4-pve
proxmox-ve-2.6.32: 1.9-55+ovzfix-2
pve-kernel-2.6.32-4-pve: 2.6.32-33
pve-kernel-2.6.32-7-pve: 2.6.32-55+ovzfix-2
qemu-server: 1.1-32
pve-firmware: 1.0-15
libpve-storage-perl: 1.0-19
vncterm: 0.9-2
vzctl: 3.0.29-3pve1
vzdump: 1.2-16
vzprocps: 2.0.11-2
vzquota: 3.0.11-1dso1
pve-qemu-kvm: 0.15.0-2
ksm-control-daemon: 1.0-6

How can i change the kernel that i can boot on it? What file i must modify?

Thank You!
MELISA
Click to expand...
Hi Melisa,
look in /boot/grub/menu.lst - normaly is "default 0" at the beginning (mean the first entry) and the newest kernel the first in the entry-section (app. line 120).

Udo
 
Hello,

i dont have this File on my Hostsystem:

/boot/grub/menu.lst

It is Debian 64 Bit OS with pve-manager/1.9

What ist wrong here? Thank You.

Melisa
 
melisa24 said:
Hello,

i dont have this File on my Hostsystem:

/boot/grub/menu.lst

It is Debian 64 Bit OS with pve-manager/1.9

What ist wrong here? Thank You.

Melisa
Click to expand...
Hi Melisa,
do you have /boot/grub/crub.cfg?
Then the configs are in /etc/grub.d/ and /etc/default/grub

After changes "update-grub" or "update-grub2" executen.

To see which version is running:
Code: 
dpkg -l | grep grub
Udo
 
Updated to 2.6.32-7 from 2.6.32-4, and I'm seeing stutter/buffer/high-io-wait from my Areca 1160 I wasn't seeing before. I'm going to revert to 2.6.32-6 (since it looks like the "use ARECA RAID card driver from upstream kernel" change went in -7) and see if the problem goes away.


 
You must log in or register to reply here.

About

The Proxmox community has been around for many years and offers help and support for Proxmox VE, Proxmox Backup Server, and Proxmox Mail Gateway.
We think our community is one of the best thanks to people like you!

Quick Navigation

Home Get Subscription Wiki Downloads Proxmox Customer Portal About

Get your subscription!

The Proxmox team works very hard to make sure you are running the best software and getting stable updates and security enhancements, as well as quick enterprise support. Tens of thousands of happy customers have a Proxmox subscription. Get yours easily in our online shop.

Buy now!
Community platform by XenForo® © 2010-2024 XenForo Ltd.
Top Bottom
Back