 24 Aug 2021, Stefan Ritt, Bug Fix, changes in history plots
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One addition I would be in favour of is to remove the "Order" and replace it with drag&drop handles, because this is what people are more
used to today. Only the old guys like us remember the /etc/init.d/xx_yy scheme where one uses an integer number in the file name to
determine an order.
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 19 Sep 2021, Stefan Ritt, Bug Fix, Chat working again 
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Not sure how many people are using it, but the Chat facility in midas was broken
for some time now and got fixed today again.
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08 Feb 2022, jago aartsen, Bug Fix, ODBINC/Sequencer Issue
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Hi all,
I am having some issues getting the ODBINC command to work within the MIDAS
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08 Feb 2022, Konstantin Olchanski, Bug Fix, ODBINC/Sequencer Issue
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Please post the output of odbedit "ls -l" for /eq/ar.../variables. (you posted the
variable name as an image, and I cannot cut-and-paste the odb path!). BTW data size 4 is
correct, 4 bytes for INT32/UINT32/FLOAT. For DOUBLE it should be 8. For you it prints 32
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09 Feb 2022, jago aartsen, Bug Fix, ODBINC/Sequencer Issue
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> Please post the output of odbedit "ls -l" for /eq/ar.../variables. (you posted the
> variable name as an image, and I cannot cut-and-paste the odb path!). BTW data size 4 is
> correct, 4 bytes for INT32/UINT32/FLOAT. For DOUBLE it should be 8. For you it prints 32
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09 Feb 2022, Konstantin Olchanski, Bug Fix, ODBINC/Sequencer Issue
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>
> [local:mu3eMSci:S]/>cd Equipment/ArduinoTestStation/Variables
> [local:mu3eMSci:S]Variables>ls -l
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10 Feb 2022, Stefan Ritt, Bug Fix, ODBINC/Sequencer Issue
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I tried following script:
ODBSET /Equipment/ArduinoTestStation/Variables/_S_, 10
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14 Feb 2022, jago aartsen, Bug Fix, ODBINC/Sequencer Issue
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> I tried following script:
>
> ODBSET /Equipment/ArduinoTestStation/Variables/_S_, 10
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14 Feb 2022, jago aartsen, Bug Fix, ODBINC/Sequencer Issue
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> >
> > [local:mu3eMSci:S]/>cd Equipment/ArduinoTestStation/Variables
> > [local:mu3eMSci:S]Variables>ls -l
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14 Feb 2022, Stefan Ritt, Bug Fix, ODBINC/Sequencer Issue
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Just post here a minimal script which produces the error, so that I can try myself.
... and make sure that you have the latest develop version of midas.
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14 Feb 2022, jago aartsen, Bug Fix, ODBINC/Sequencer Issue
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> Just post here a minimal script which produces the error, so that I can try myself.
>
> ... and make sure that you have the latest develop version of midas.
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14 Feb 2022, Stefan Ritt, Bug Fix, ODBINC/Sequencer Issue
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> I noticed that "Jacob Thorne" in the forum had the same issue as us in Novemeber last
> year. Indeed we have not installed any later versions of MIDAS since then so we will
> double check we have the latest version.
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14 Feb 2022, jago aartsen, Bug Fix, ODBINC/Sequencer Issue
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> > I noticed that "Jacob Thorne" in the forum had the same issue as us in Novemeber last
> > year. Indeed we have not installed any later versions of MIDAS since then so we will
> > double check we have the latest version.
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15 Feb 2022, Stefan Ritt, Bug Fix, ODBINC/Sequencer Issue
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> But the error still persists. Is there another way to update which we are missing?
The bug was definitively fixed in this modification:
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15 Feb 2022, jago aartsen, Bug Fix, ODBINC/Sequencer Issue
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> > But the error still persists. Is there another way to update which we are missing?
>
> The bug was definitively fixed in this modification:
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16 Feb 2022, jago aartsen, Bug Fix, ODBINC/Sequencer Issue
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> > But the error still persists. Is there another way to update which we are missing?
>
> The bug was definitively fixed in this modification:
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15 Mar 2022, Konstantin Olchanski, Bug Fix, mhttpd ipv6 bind should be fixed now
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Something changed after my initial implementation of ipv6 in mhttpd
and listening to ipv6 http/https connections was broken.
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22 Mar 2022, Konstantin Olchanski, Bug Fix, fix for event buffer corruption in bm_flush_cache()
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multithreaded frontends have an unusual event buffer corruption if the write
cache is enabled. For a long time now I had to disable the write cache on
all multithreaded frontends in alpha-g, I was hitting this bug quite often.
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22 Mar 2022, Stefan Ritt, Bug Fix, fix for event buffer corruption in bm_flush_cache()
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Thanks Konstantin for your detailed description.
I wonder why we never saw this problem at PSI. Here is the reason: In multil-threaded environments, we never call bm_send_event() directly
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23 Mar 2022, Ivo Schulthess, Bug Fix, fix for event buffer corruption in bm_flush_cache()
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Thanks for the investigation. Back in 2020, we had some issues of losing data between the system buffer and the logger writing them to disk (https://daq00.triumf.ca/elog-midas/Midas/1966).
This was polled equipment but we had a multithreaded FE running at the same time. Could this be related to the same problem?
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