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<== Date ==> <== Thread ==>

Subject: CA problem
From: Pedro Gigoux <[email protected]>
To: EPICS Tech-Talk <[email protected]>
Date: Mon, 09 Sep 2002 11:10:22 -0400
Hi,

We have a system that keeps loosing the connection to the DM screens
after a few minutes of operation. The following message shows up on the
screen after that happens:

ecs-MK> dbCa:exceptionCallback stat Network connection lost channel
unknown

ecs-MK>
CA.Client.Diagnostic..............................................
    Message: "Network connection lost"
    Severity: "Warning" Context: "10.2.2.104:5064"
    Source File: ../iocinf.c Line Number: 1488
...................................................................
CAC: unexpected select fail: 851971=S_iosLib_INVALID_FILE_DESCRIPTOR

After this message it's not possible to ping the machine where the crate
boots from (or any other machine). Tried changing the CPU and transition
module but the symptom stayed the same. Also tried changing the ethernet
cable and switch port with no luck.

Except for the network problem the system seems to be running fine and
I'm able to access the console (serial port) without problems. The only
way to bring the system back to life was to install the old version of
the software that run on a previous verion of EPICS (3.12.2). We used to
run under 3.13.4. The program in the crate has been running for several
weeks flawlesly, and runs in our twin facility with no problems at all.

Any ideas?

Pedro.

Replies:
RE: CA problem Jeff Hill
Re: CA problem (Pedro Gigoux) Bernd Schoeneburg

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