Thomas Skowron put forth on 2/18/2011 3:27 AM:
Am 18.02.2011 um 03:05 schrieb Stan Hoeppner <stan@hardwarefreak.com>:
Thomas Skowron put forth on 2/17/2011 6:19 PM:
Versions seem to be okay. The only thing that has been updated on the server is the kernel (2.6.26-2-xen-amd64). Could this be possibly a problem?
Squeeze is built against kernel 2.6.32-5. Although it is unlikely that the old 2.6.26 kernel is related to this problem I guess it's possible. Regardless you should upgrade the kernel to the amd64 squeeze kernel.
Why are you running a Xen kernel? That would suggest you're running multiple virtual machines. Are you? Is this Dovecot server inside a virtual machine? If so, why are you reporting to us the kernel version of the hypervisor instead of the guest OS?
I am on a virtual machine (it's a virtual dedicated server). I have performed a standard dist upgrade, but my provider isn't giving me the possibility to upgrade the kernel. It's a mess. Why Xen? No idea. That's simply what uname -a says me.
Well, I assume I got to ask my provider for any information.
Ahh, the wonderful world of cheap VPS. If this is a "dedicated" server, how are they preventing you from replacing the kernel image? You have root access don't you? Then there should be nothing stopping you from updating the kernel. If they can physically prevent you from doing so then this is certainly NOT a dedicated server platform, but a hybrid VPS hosting platform.
As your problems are very unlikely caused by Dovecot, but by the Squeeze upgrade, I'd suggest you take this up on the Debian users list. Someone there may be able to give you more insight.
BTW, does your VPS provider support Squeeze? Did you ask them before upgrading? It would appear they don't yet support Squeeze...
Good luck.
-- Stan