On 09/23/2017 06:15 AM, Ralph Lange wrote:
> Alas, there's no bug in the issue tracker for it, and it is not
> mentioned on the "Known Issues" page. We should probably add the latter
> at least.
Patch file created and linked from the Known Problems page for 3.16.1 at
http://www.aps.anl.gov/epics/base/R3-16/1-docs/KnownProblems.html
- Andrew
> On Sat, Sep 23, 2017 at 11:47 AM, Michael Ritzert
> <[email protected]
> <mailto:[email protected]>> wrote:
>
> Hi all,
>
> since upgrading from 3.14 to 3.16.1, I see the following messages on
> the console of an IOC:
> DB CA Link Exception: channel "dest1"
> DB CA Link Exception: native T=DBR_DOUBLE, request T=DBR_DOUBLE,
> native N=1, request N=1, access rights {RW}
> DB CA Link Exception: "Channel write request failed", context "dest1"
>
> This is from a dfanout record that simply pushes a value to another IOC.
>
> However, the write succeeds.
>
> It's totally reproducible with these two DBs run in softIOCs:
>
> sender.db:
> record(calc, "count") {
> field(SCAN, "1 second")
> field(VAL, "0")
> field(PINI, "YES")
> field(INPA, "count")
> field(CALC, "A+1")
> }
>
> record(dfanout, "send1") {
> field(DOL, "count CPP")
> field(OMSL, "closed_loop")
> field(OUTA, "dest1")
> }
>
> record(dfanout, "send2") {
> field(OMSL, "supervisory")
> field(OUTA, "dest2")
> }
>
> receiver.db:
> record(ao, "dest1") {
> }
>
> record(ao, "dest2") {
> }
>
> There's one messages every second about dest1, and one on every
> write to send2.
>
> Cheers,
> Michael
> --
> Dr. Michael Ritzert Tel: +49 621 181 2883
> <tel:%2B49%20621%20181%202883>
> Schaltungstechnik und Simulation Fax: +49 621 181 2734
> <tel:%2B49%20621%20181%202734>
> Technische Informatik, Uni Heidelberg
> [email protected]
> <mailto:[email protected]>
> 68131 Mannheim, Germany
> http://sus.ziti.uni-heidelberg.de <http://sus.ziti.uni-heidelberg.de>
>
>
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