Date: Fri, 10 Dec 2004 18:10:55 -0700 (MST)
From: Jurek Krzesinski
Subject: Re: 2.5m obslog 20041209 (MJD 53349)
  Jon,
     Do you know how to prevent that problem to happen? That would be
more important for us. Besides why it started to happen so often last
times? Any suggestions?
    Jurek
On Fri, 10 Dec 2004, Jon Brinkmann wrote:
> > Spectro DA problem:
> > -------------------
> > The monitors in the control room failed to read out on an exposure,
> > although all data were good. There were no DA errors in Watcher or SOP.
> > We were able to continue to work without the monitors (they did not
> > read out on any subsequent exposures), although we eventually rebooted
> > the spectro crate, while we were waiting for the wind to drop. This
> > brought the monitors back to life, although we needed to resync frame
> > numbers and had to restart the servers.
>
> The most like culprit is the "scd" process on the spectro DA node.  It
> probably died.  You can check it's status by using the "i" VxWorks
> command when connected to the node's console port.  The status entry is
>
>   NAME        ENTRY       TID    PRI   STATUS      PC       SP     ERRNO  DELAY
> ---------- ------------ -------- --- ---------- -------- -------- ------- -----
> dSCD       _scdTask      1771cb8  12 PEND+T        651bc  1771a84  3d0004 524445
>
> The process should exist and should be in the PEND or PEND+T state.  I'm not
> sure how to interpret the ERRNO.
>
> Jon
>
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