Just upgraded to CentOS 6.5 64-bit (2.6.32-431.el6.x86_64). After the updates and a reboot I launched VMware Workstation 10.0.1 like I normally would and started my OpenVPN (Debian Wheezy) VM with out any issues. I then started my Windows 7 64-bit VM and the entire host OS locks up and I have to reboot using the hardware reset button.
I've been able to reproduce it twice in a row. The Windows 7 VM seems to start fine and then when I type my credentials in and it starts loading the desktop that's when everything goes south and the host completely freezes.
The Windows 7 VM doesn't have anything overly complicated installed in it. Some Epson software for a networked printer and uTorrent start on boot. Steam does as well but it doesn't auto-login or do anything really.
I just did some synthetic load testing and went up to 24GB of 32GB RAM and 50% CPU usage across all 8 cores (way more than usual load) on the host and things remained stable. I thought for a second the issue might be RAM related because after a fresh boot with out the Windows 7 VM running I'm at around 7GB of RAM used on the host and starting the WIndows 7 VM would put me over 8GB which seemed like a nice number where things could go wrong if it were RAM related.
Log files:
kdump: https://paste.fizi.ca/?f5c7c3e6945f8ce4#hPoN0VUJbPKA07hbDPWuE1D0e9FC7Ss8RNvF5Qv7yy0=
vmware-0.log: https://paste.fizi.ca/?05d42cd929bb5237#Zgbtlm7R+bZEHEOs5uSyA6Xin6FOOflWYWvNnHnxksM=
Any ideas?