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Long running process (ffmpeg) breaks in VMware Fusion > 5

Hi,


I've been using VMware fusion 5, 6 and 7 to run video encoding.  I've built my setup from source for FFMPEG in Ubuntu 12 and 14 with the same result.

 

Symptoms:

When running encodes that take a long time (ie, > 10 hours or so of encoding), FFMPEG will exit normally but it's output files are garbage, they will not play.  This happens 90% of the time, 10% will finish successfully.  If the video is short and the encoding takes about an hour, it will be fine and playback normally.

 

VMware Fusion 5:

All encodes behave normally, and work 100% of the time, even if long running

 

VMware 6 and 7:

Symptoms described above, with almost all failures.

 

Is there some setting that could be causing this?  I've gone back and re-built the same virtual machines from scratch on VMware 5 VMs and it works normally, the bug appears to be with VMware fusion 6 and higher, I am not sure how to solve the problem!


Thanks for any advice!


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