 26 Jan 2022, Marius Koeppel, Bug Report, Writting MIDAS Events via FPGAs
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> Any error messages printed by the frontend? any error message in midas.log? core dumps? crashes?
> I do not understand what you mean by "did not get the data into midas". You create events
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26 Jan 2022, Stefan Ritt, Bug Report, Off-by-one in sequencer documentation
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> Shades/ghosts of FORTRAN. c/c++/perl/python loops loop from 0 to n-1.
for (i=1 ; i<=10 ; i++); ;-) |
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26 Jan 2022, Konstantin Olchanski, Bug Report, Off-by-one in sequencer documentation
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> > Shades/ghosts of FORTRAN. c/c++/perl/python loops loop from 0 to n-1.
>
> for (i=1 ; i<=10 ; i++); ;-)
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26 Jan 2022, Konstantin Olchanski, Bug Report, Writting MIDAS Events via FPGAs
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>
> > Any error messages printed by the frontend? any error message in midas.log? core dumps? crashes?
> > I do not understand what you mean by "did not get the data into midas". You create events
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26 Jan 2022, Konstantin Olchanski, Bug Report, Unknown Error 319 from client
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> I’m trying to run MIDAS using a frontend code/client named “fetiglab”. Run stops
> after 2/3sec with an error saying “Unknown error 319 from client “fetiglab” on
> localhost.
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26 Jan 2022, Marius Koeppel, Bug Report, Writting MIDAS Events via FPGAs
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> If you are connected locally (no mserver), I want to know the value returned by bm_send_event(). Simplest
> if you edit mfe.c and everywhere it calls bm_send_event() and rpc_send_event(), print the returned value.
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28 Jan 2022, Stefan Ritt, Bug Report, Writting MIDAS Events via FPGAs 
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I finally got the dummy program working. There were several issues:
- event_buffer_size was defined as 10000 * 32 MB = 320 GB, exceeding the RAM of the computer
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10 Feb 2022, Stefan Ritt, Bug Report, History plots deceiving users into thinking data is still logging
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The problem has been fixed on commit 825935dc on Oct. 2021 and runs fine since then at PSI. If TRIUMF people
agree, we can close that issue and proceed.
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11 Feb 2022, Alexey Kalinin, Bug Report, some frontend kicked by cm_periodic_tasks
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Thanks for the answer.
As soon as I can(possible in a month) I'll try suggestion below:
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16 Feb 2022, Marius Koeppel, Bug Report, Writting MIDAS Events via FPGAs
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I just came back to this and started to use the dummy frontend.
Unfortunately, I have a problem during run cycles:
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03 Mar 2022, Stefan Ritt, Bug Report, Writting MIDAS Events via FPGAs
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> Starting the frontend and starting a run works fine -> seeing events with mdump and also on the web GUI.
> But when I stop the run and try to start the next run the frontend is sending no events anymore.
> It get stuck at line 221 (if (status == DB_TIMEOUT)).
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07 Mar 2022, Marius Koeppel, Bug Report, Writting MIDAS Events via FPGAs
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> This problem has (likely) been fixed in the current version. Please pull develop and try again. Was a recursive call to the event collection routine which
is only triggered if you send events faster than
> the logger can digest, so not many people see it.
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 10 Mar 2022, Gennaro Tortone, Bug Report, Python ODB watch
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Hi,
I have an issue with ODB watch on MIDAS Python library;
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16 Mar 2022, Ben Smith, Bug Report, Python ODB watch
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> It seems that the second write operation "overlaps" the first one...
Hi Gennaro,
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21 Mar 2022, Stefan Ritt, Bug Report, Python ODB watch
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What you describe is a well-known problem with the ODB. At PSI we have similar issues. There are
two approaches to solve it:
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24 Mar 2022, Konstantin Olchanski, Bug Report, data missing in runXXXXXX.mid
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> > It would be good to pin point there the data is lost. This is the sequence:
> >
> > frontend user code -> mfe.c code -> SYSTEM buffer -> mlogger -> disk
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24 Mar 2022, Stefan Ritt, Bug Report, data missing in runXXXXXX.mid
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One idea: we should have a look at mlogger::close_channels(). There the SYSTEM buffer is emptied through the cm_yield() call. Instrumenting this with some
debugging code will enlighten us.
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24 Mar 2022, Konstantin Olchanski, Bug Report, data missing in runXXXXXX.mid
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> One idea: we should have a look at mlogger::close_channels().
> There the SYSTEM buffer is emptied through the cm_yield() call.
> Instrumenting this with some debugging code will enlighten us.
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25 Mar 2022, Marius Koeppel, Bug Report, Writting MIDAS Events via FPGAs
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I finally found the problem why the readout stops after a run transition.
In my dummy frontend the serial number was not reset to zero at run start.
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20 Jun 2022, jianrun, Bug Report, Error in "midas/src/mana.cxx"
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Dear Midas developers,
When we are running the examples in $MIDASSYS/examples/experiment/, we meet some
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