View Single Post
Old 06-19-2014, 10:30 AM
Paul Paul is offline
Join Date: Oct 2006
Location: Bellevue, WA
Posts: 20

I wrote the medchg.sys driver and it is extraordinarily stable -- it has not had any modification to the driver since May of 2006. Therefore, this is very likely to be a fault in the VMware virtualization code (it is not common to virtualize a tape library, so this is probably not well tested). I would recommend that you connect that same library/driver to a physical machine and see if the issue can be duplicated. If it cannot, it indicates that the problem lies with VMware. The blue-screen dump might give more information as to the cause, so if you'd like us to investigate further please contact us at and we can make arrangements to receive the dump file for analysis (please set the system to create a "kernel memory only" dump).
Reply With Quote