corruption of process shared text with Solaris 2.5 on 670MP?

corruption of process shared text with Solaris 2.5 on 670MP?

Post by Lee Roge » Thu, 30 Jan 1997 04:00:00

The problem:
My Sun 670MP has 4 processors and is running Solaris 2.5.  I submitted 4
background jobs using a sh script, and sent stdout to a log file, but
forgot to redirect stderr.  Each job ran the same FORTRAN executable, but
with different input parameters.  After running for day or so, all four
jobs died within a minute of each other (based on time stamp of log file).
One received a SIGSEGV signal, while the other three received a SIGILL.  

The question(s):
What is going on?  Could the first job be corrupting a shared copy of the
process text (the segmentation violation)?  How could this happen, and how
can I avoid it?


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1. Upgrade 670MP to Solaris 2.5

Hi Solaris Gurus out there,

We have attempted to upgrade one of two 670MP servers from SunOS 4.1.2
to Solaris 2.5.  On first glance it seems to work just fine (after we
installed the Naming Services Transition Kit and DiskSuite).  All the
NFS drives showed up and runnig with one or two users it was peachy.  
Once we loaded the network up with about 50 users, the server started
dropping out with that famous "NFS server xyy not responding" message.  
We think it may have something to do with the configuration in the
"system" file.  BTW, the box has three active ethernet interfaces
configured for three different subnets.  The main purpose of the server
is to act as a NFS server and NIS server for the network.

Any clues?  Need more detail?  E-mail me and I'll get back to you.

Thanks in advance,

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