On Fri, Nov 5, 2010 at 5:16 PM, Hermann Himmelbauer <dusty@xxxxxxx> wrote: > I experience strange disk I/O stucks on my Linux Host + Guest with KVM, which > make the system (especially the guests) almost unusable. These stucks come > periodically, e.g. every 2 to 10 seconds and last between 3 and sometimes > over 120 seconds, which trigger kernel messages like this (on host and/or > guest): > > INFO: task postgres:2195 blocked for more than 120 seconds The fact that this happens on the host too suggests there's an issue with the host software/hardware and the VM is triggering it but not the root cause. Does dmesg display any other suspicious messages? Stefan -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
