 21 Nov 2025, Stefan Mathis, Forum, Control external process from inside MIDAS
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Hi,
unfortunately I don't have a documentation link to the feature, I just know that it works on my machine ;-) The general idea is that you place a custom |
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24 Nov 2025, Stefan Ritt, Forum, Control external process from inside MIDAS
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Dear all,
Stefan wants to run an external EPICS driver process as a detached process and somehow "glue" it to midas to control it. Actually a
similar requirement led to the development of MIDAS in the '90s. We had too many configuration files lying around, to many process to control and interact |
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27 Nov 2025, Konstantin Olchanski, Forum, Control external process from inside MIDAS
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> Rather than investing time to re-invent the wheel here, better try to modify your EPICS driver process to
become a midas process.
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 09 Jan 2026, Stefan Ritt, Forum, MIDAS installation 
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Since we have no many RaspberryPi based control systems running at our lab with midas, I want to
streamline the midas installation, such that a non-expert can install it on these devices.
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10 Jan 2026, Marius Koeppel, Forum, MIDAS installation
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Dear Stefan,
That’s a great idea. For a private home automation project using a Raspberry Pi Zero, I used the
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13 Jan 2026, Stefan Ritt, Forum, MIDAS installation
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Thanks for your feedback. I reworked the installation script, and now also called it "install.sh" since it includes also the git clone. I modeled it after
homebrew a mit (https://brew.sh). This means you can now run the script on a prison linux system with:
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13 Jan 2026, Stefan Ritt, Forum, MIDAS installation
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I put the documentation under
https://daq00.triumf.ca/MidasWiki/index.php/Install_Script
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09 Apr 2026, David Perez Loureiro, Forum, Migrate Legacy code to current Midas version
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I am an applied physicist at Canadian Nuclear Laboratories and am in the process
of migrating the full experiment configuration—including the front-end interface—
of the CRIPT muon tomography detector from a legacy version of MIDAS (SVN Rev.
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09 Apr 2026, Nick Hastings, Forum, Migrate Legacy code to current Midas version
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> I am an applied physicist at Canadian Nuclear Laboratories and am in the process
> of migrating the full experiment configuration—including the front-end interface—
> of the CRIPT muon tomography detector from a legacy version of MIDAS (SVN Rev.
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16 Apr 2026, Konstantin Olchanski, Forum, Migrate Legacy code to current Midas version
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> I am migrating the full CRIPT muon tomography detector from MIDAS (SVN Rev.
> 5238, circa 2012) to a more modern release.
> The current system runs on Scientific Linux 6 and very old hardware.
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25 Jun 2026, Konstantin Olchanski, Forum, midas forum elog updated
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I updated the midas forum elog to the latest version from git: 083448f7
Also investigated elogd failure to start on reboot,
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20 Jul 2026, Konstantin Olchanski, Forum, midas forum elog crashed, restarted
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> I updated the midas forum elog to the latest version from git: 083448f7
>
> Also investigated elogd failure to start on reboot,
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20 Jul 2026, Konstantin Olchanski, Forum, midas forum elog crashed, restarted
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Also a crash soon after startup:
https://elog.psi.ch/elogs/Forum/69934
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21 Jul 2026, Konstantin Olchanski, Forum, midas forum elog crashed, restarted
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crashed again, restarted. gcc address sanitizer disables core dumps by default, to enable, do this:
export ASAN_OPTIONS=abort_on_error=1:disable_coredump=0:unmap_shadow_on_exit=1
K.O. |
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22 Jul 2026, Konstantin Olchanski, Forum, midas forum elog crashed, restarted
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> crashed again, restarted. gcc address sanitizer disables core dumps by default, to enable, do this:
> export ASAN_OPTIONS=abort_on_error=1:disable_coredump=0:unmap_shadow_on_exit=1
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13 Oct 2004, Konstantin Olchanski, Bug Report, db_paste: found string exceeding MAX_STRING_LENGTH
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I am updating TWIST to the latest MIDAS and when I load a saved .odb file, I get
these messages. Their text ought to say where and what strings it does not like.
K.O.
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13 Oct 2004, Stefan Ritt, Bug Report, db_paste: found string exceeding MAX_STRING_LENGTH
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Can you attach
/twist/data_onl/current/run17548.odb
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13 Oct 2004, Konstantin Olchanski, Bug Report, silly odbedit "rename Display xxx/yyy"
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odbedit command "rename Display xxx/yyy" creates a key named "xxx/yyy" (yes,
with a slash in the name) and this key cannot be deleted or renamed...
K.O. |
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13 Oct 2004, Stefan Ritt, Bug Report, silly odbedit "rename Display xxx/yyy"
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> odbedit command "rename Display xxx/yyy" creates a key named "xxx/yyy" (yes,
> with a slash in the name) and this key cannot be deleted or renamed...
> K.O.
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13 Oct 2004, Konstantin Olchanski, Bug Report, TWIST upgrade bombed...
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The upgrade of TWIST to the latest midas has bombed- we see mevb and mlogger
crashes during shared memory data buffer accesses. I am looking into it and I
will add information as I figure things out. K.O. |