Ticket #7803 (closed defect: fixed)
Heavy I/O causing Windows 2008 guest freeze on Ubuntu Host
|Reported by:||smartinez||Owned by:|
We are currently running a Windows 2008 64-bit server on a Ubuntu 64-bit Host (Kernel v188.8.131.52.11-lucid). The host is set up with 8 GB of RAM and 2 Intel Xeon Quad core processors. Hardware virtualization is enabled in the BIOS.
The "freeze" seems to happen when there is heavy I/O activity on the virtual machine (e.g. disk backups). The machine becomes completely unresponsive and there is no indication of any disk activity. Also, any attempts to ping the machine are unsuccessful. We are forced to shut down the machine using the red-x.
It might be worth mentioning that in addition to the Windows 2008 machine, we have 4 Linux CentOS guests that are currently running without any problems. Previously, three of the linux guests had filesystems that would become corrupt and go into "read-only" mode at about the same time the Windows machine would freeze. However, this is no longer happening with the current Ubuntu kernel we are running (we have tried multiple kernels in hope of fixing the issue; so far the kernel we are on seems to be the best). The linux machines are running as CLI only.
I'm attaching the windows machine configuration xml as well as the VBox log file with this ticket.
Thank you in advance for your help with this.