Bug#686847: KVM guest slows down and finally hangs on I/O

2012-09-10 Thread Marco d'Itri
On Sep 06, Marco d'Itri wrote: > The system suddenly slows down and then all processes hang. The getty on > the virtual console is responsive to input, but it hangs when it tries > to fork+exec login. After installing the backported wheezy kernel I have found out that this is related to VM pres

Bug#686847: KVM guest slows down and finally hangs on I/O

2012-09-06 Thread Marco d'Itri
Package: linux-2.6 Version: 2.6.32-45 Severity: normal Linux vm.cs16.seeweb.it 2.6.32-5-amd64 #1 SMP Sun May 6 04:00:17 UTC 2012 x86_64 GNU/Linux This is a fully up to date squeeze system running as a guest on a RHEL 6.2 host. 1 CPU, 1 GB of RAM, virtio net and disk (using XFS). We have hun