>
> We two MV2307s in seperate VME crates running EPICS. In one of the
> crates I have to EPICS sequencers that monitor channels on the
> other crate.
>
> Periodically this crate will lose its channel access connection
> to the other and never reconnect, as if the crate that its connecting
> to was powered off. However this is not the case. Both crates are
> up and running and the only problem is that the first crate got
> disconnected from the second and never reconnects.
>
> "caget" on the disconnected channels work fine.
>
> Does anyone have any clues what could be causing these disconnects
> and why the sequencers won't reconnect? We are running VxWorks 5.3.1
> and EPICS R3.13.0Beta12.
>
Kevin,
First, I would verify that ping, telnet, etc work against both VME crates.
Next, I would run ping on the disconnected crate against the server that
it disconnected from. I would also run "memShow()", "iosFdShow()",
and "mbufShow()" on both hosts. If all of the above are ok then I would
run "tt()" against the sequencer and ca client tasks to see if there are
any indications that some thread is hung. It might help to save a base line
"tt()" output for related threads after the system boots up and then compare
this to what you see when it is disconnected. I am happy to help out
interpreting any output which appears to be off normal.
I should add that many subtle bugs have been fixed between EPICS R3.13.0Beta12
and the latest patch release of R3.13.
Jeff
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