We're running a setup as follows using Hyper-V:
Windows Server 2008 R2 (Hyper-V Host) | |-- SBS 2008 (DC) |__ Windows Server 2008 R2 (TS)
Recently we've experienced multiple crashes that we cannot pin down. When we look at the server (after the network connections go down) the monitor we attached to the host 2008 install is blank and will not respond. A restart will bring the servers back up, but the "unexpected shutdown" dialog box reports a bluescreen with minimal detail:
Problem signature: Problem Event Name: BlueScreen OS Version: 6.1.7600.2.0.0.272.7 Locale ID: 2057 Additional information about the problem: BCCode: 101 BCP1: 0000000000000019 BCP2: 0000000000000000 BCP3: FFFFF88001E5D180 BCP4: 0000000000000002 OS Version: 6_1_7600 Service Pack: 0_0 Product: 272_3
Anecdotally, removing the Kyocera printer drivers from the SBS VM seemed to stop crashes (we were experiencing two a day at this point). We have now, however, had a further event today - even though the printer drivers are now on a seperate machine entirely.
EDIT: As an aside; we can't see any relevant errors in the Event Viewer that would explain this.