Please help me diagnose this crazy VMWare/FreeBSD 8.x crash

Mark Felder feld at
Thu May 10 14:27:08 UTC 2012

Quick update:

I have received word last night that this crash has been consistently  
happening to someone on FreeBSD 9 and they're looking for more ideas. I  
changed the following 41 days ago:

- Video memory to "auto" if it wasn't already
- SCSI controller changed from LSI Logic Parallel to LSI Logic SAS

It uses the same driver (da) but so far has been holding steady for us. As  
far as the video memory -- many of our servers somehow had video memory  
set to 1MB which seemed strange; newer builds of FreeBSD on ESXi do not  
show this option. Perhaps there was a build of ESXi in the past that had a  
different setting for video memory when you selected FreeBSD?

Another change people might want to do as suggested to us by VMWare  

- Change CPU/MMU Virtualization to the bottom option -- "Use Intel  
VTx/AMD-V for instruction set virtualization and Intel EPT / AMD RVI for  
MMU virtualization"

Supposedly there are autodetection issues here with some OSes -- they  
named some BSDs and Netware.

I'll provide further updates if anything changes, but this seems to be  
working well so far. We won't begin to trust it until we can hit at least  
100 days of uptime, though. Unfortunately I was hoping to upgrade these  
servers to 8.3 before then...

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