We are running Windows 7 using VmWare Virtual Desktop (VDI). So, my x2go
client runs on that Windows desktop. The crash is actually happening in vcxsrv.ex
and I was able to obtain the following additional information:

(1) The VDI admins updated some VDI runtimes on our VDI desktop instances to
    VMWare version 6 around the time we started to experience this crash

(2) Here is a more detailed dump of some debug information I found:

Problem signature:
  Problem Event Name:  APPCRASH
  Application Name:  vcxsrv.exe
  Application Version:  1.17.0.0
  Application Timestamp: 55b5056a
  Fault Module Name:  vm3dum.dll
  Fault Module Version: 8.15.1.46
  Fault Module Timestamp: 57112640
  Exception Code:  40000015
  Exception Offset:  00026b27
  OS Version: 6.1.7601.2.1.0.256.4
  Locale ID: 1033
  Additional Information 1: f5d8
  Additional Information 2: f5d85880320133c2803765541f044878
  Additional Information 3: 4651
  Additional Information 4: 4651b47fc82bdc83b534297b987ba7e7