Date: Fri, 24 Mar 2006 09:51:27 -0600
From: Kurt Biery
Subject: Re: 2.5m obslog 20060323 (MJD 53818)
I believe that the id*/ad* problems were my fault, and I have no excuse,
only an apology.  By way of explanation - the new kernel did not fix the
VxWorks board hangs (ad2 hung 21-Mar 10:16 MST), and in trying out ways
that we might tweak various task priorities on the boards to further
debug the hangs, I inadvertently left modified priorities installed.
These are now back to normal.  I don't understand why this change would
have caused this behavior, but I can't believe that it is not the source
of the problems.
In discussing unrelated tests with Jon yesterday, he pointed out that
daytime tests are not allowed during dark runs.  I had not fully
appreciated that restriction previously, but sadly I've certainly made
the case for such a rule, haven't I?
Dan and Mike: sorry for the trouble this caused.  If there are any
further problems, please call me so that I can help clear them up.
Kurt
harvanek@sdsshost2.apo.nmsu.edu wrote:
>                       APACHE POINT OBSERVATORY SDSS 2.5M
>
>                                 OBSERVING LOG
>                            Thursday March 23, 2006
>
>                                  (MJD 53818)
>
>---=== OBSERVING TEAM ===---
>
>   Dan Long
>   Mike Harvanek
>
>---=== OBSERVING PLAN ===---
>
>        Science!
>
>---=== OBSERVING SUMMARY ===---
>
>Finished 6 plates (2431, 2440, 2093, 2228, 2013, 2028).
>Good data on another plate (2155).
>
>Problems with the DA.  See the main log for details.  PR 6933
>was filed.  Note that we are now running the old vxworks kernel.
>
>Some imager voltage errors.  See the main log for details.
>
>We lost over an hour to high humidity.
>
>---=== OBSERVING LOG ===---
>
>Afternoon:
>----------
>The DA gave us problems this afternoon.  It crashed 4 times immediately
>after the scrolling display was changed and once in the middle of a bias
>when no change was made to the scrolling display.  Switching back to the
>previous kernel did not solve the problem.  The crashing due to the change
>in the scrolling display is repeatable.  PR 6933 was filed.  Note that we
>are now running the old vxworks kernel.
>
>Spectro collimation is set for -1 C.
>
>
>
>