ccd actor on r1 crash tonight while we were taking exposure.

not much in the logs:

2017-10-19 16:31:50.265Z cmds 20 CommandLink.py:118 > 2 3208 i readRows=4299,4300
2017-10-19 16:31:50.554Z ccd 30 ccd.py:179 creating fits file: /data/pfs/2017-10-19/PFLA00647812.fits
2017-10-19 16:31:52.716Z cmds 20 CommandLink.py:120 > 2 3208 f text="command failed: NameError(\"global name 'serial' is not defined\"...
2017-10-19 16:31:53.009Z cmds 20 Actor.py:425 new cmd: clearExposure
2017-10-19 16:31:53.037Z cmds 20 CommandLink.py:120 > 2 3209 w text="clearing running/broken exposure: Exposure(imtype=bias, expTime=8...
2017-10-19 16:31:53.037Z cmds 20 CommandLink.py:118 > 2 3209 :
2017-10-19 16:31:58.484Z cmds 20 Actor.py:425 new cmd: disconnect controller=fee
2017-10-19 16:31:58.508Z actor 20 ICC.py:88 stopping existing fee controller
2017-10-19 16:31:58.509Z cmds 20 CommandLink.py:118 > 2 3210 : controllers=ccd
2017-10-19 16:32:09.281Z cmds 20 Actor.py:425 new cmd: connect controller=fee
2017-10-19 16:32:09.328Z actor 20 ICC.py:31 attaching controller fee/fee from path ['/home/pfs/mhs/products/Linux64/ics_ccdActor/1.2/python/ccdActor/Controllers']
pfs@PFS-WS1:~/mhs/logs/ccd$