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Re: sunset is back, feel free to switch back from profhorn

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  • Subject: Re: sunset is back, feel free to switch back from profhorn
  • Date: Tue, 26 Sep 2000 07:24:15 -0600 (MDT)
On Mon, 25 Sep 2000, Russ Rew wrote:

> Hi,
> 
> Thanks to Pete Pokrandt for identifying an alignment bug in the LDM
> 5.1.2 pqcreate program that results in a bus error.  The bug seems to
> occur under the following circumstances:
> 
>  - SGI/IRIX 32-bit platform (things seems to work fine on 64-bit IRIX
>    platforms when compiled with -64 flag),
> 
>  - LDM 5.1.2 (things seem to work fine with LDM 5.1.2beta3), and
> 
>  - some combinations of values of queue size and number of products.
> 
> Until we come up with a fix, the (admittedly klunky) workaround is to
> try a few different values of number of products with "-S" option to
> pqcreate until you find one that works with the queue size you have
> specified, or if you are using "ldmadmin mkqueue" to try slightly
> different queue sizes with "-s".

Russ,

The -s flag was deprecated because users were having problems remembering
the size of the queue. The queue size is specified in the ldmadmin script.
I guess the main problem was more than one LDM adminstrator at a site
making the queue. This instance came up in some support questions.

/local/ldm% ldmadmin mkqueue -s 33333
Sep 26 13:15:39 UTC zero.unidata.ucar.edu : product queue -s flag not
supported,
 no action taken. 

At this point, I would not send another message to ldm-users unless we get
some support questions about this problem. It's up to you.

Robb...
> 
> I guess we were just lucky in testing, and didn't use one of the
> combinations that resulted in a SIGBUS error.
> 
> --Russ
> 
> _____________________________________________________________________
> 
> Russ Rew                                         UCAR Unidata Program
> address@hidden                     http://www.unidata.ucar.edu
> 

===============================================================================
Robb Kambic                                Unidata Program Center
Software Engineer III                      Univ. Corp for Atmospheric Research
address@hidden             WWW: http://www.unidata.ucar.edu/
===============================================================================