 08 Oct 2024, Konstantin Olchanski, Bug Report, Difficulty running MIDAS on Rocky 9.4
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I read these error messages. There is no ODB corruption. ODB semaphore is locked and all midas programs will fail, they will timeout trying to get the lock,
report the timeout, then it looks like a bug was introduced where instead of hard exit or abort() they attempt a clean shutdown which crashes from a recursive
call in db_lock_database(). Amy's
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08 Oct 2024, Konstantin Olchanski, Bug Report, Difficulty running MIDAS on Rocky 9.4
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> Basically I think Rocky 9.4 is a red herring.
This is what likely happened:
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08 Oct 2024, Konstantin Olchanski, Bug Report, Difficulty running MIDAS on Rocky 9.4
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> I read these error messages. There is no ODB corruption. ODB semaphore is locked and all midas programs will fail...
Recovery from this is:
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10 Oct 2024, Amy Roberts, Bug Report, Difficulty running MIDAS on Rocky 9.4
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> > I've uploaded the current core dump at: https://gitlab.com/det-lab/coredumps#.
>
> I cannot read the core dump without the corresponding executable (and likely all it's shared libraries).
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13 Oct 2024, Konstantin Olchanski, Bug Report, Difficulty running MIDAS on Rocky 9.4
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Thank you for the stack trace, I fixed the buglet that cause midas programs to crash twice,
once on failure to lock ODB, then call exit() -> atexit() handlers -> cm_check_connect() -> crash on ODB lock
failure is the cm_msg() codes.
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16 Oct 2024, Amy Roberts, Bug Report, Difficulty running MIDAS on Rocky 9.4
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> Thank you for the stack trace, I fixed the buglet that cause midas programs to crash twice,
> once on failure to lock ODB, then call exit() -> atexit() handlers -> cm_check_connect() -> crash on ODB lock
> failure is the cm_msg() codes.
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18 Oct 2024, Konstantin Olchanski, Bug Report, Difficulty running MIDAS on Rocky 9.4
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> [aroberts@sdfcdmsdaq midas]$ odbedit
> [ODBEdit,ERROR] [odb.cxx:2043:db_open_database,ERROR] Removed ODB client 'ODBEdit', index 0 because process pid
> 1615051 does not exists
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18 Oct 2024, Konstantin Olchanski, Bug Report, Difficulty running MIDAS on Rocky 9.4
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> suddenly, an ODB semaphore timeout...
I am wondering if something bizarre is going on, like the system clock going backwards. I heard of things like that
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28 Oct 2024, Amy Roberts, Bug Report, Difficulty running MIDAS on Rocky 9.4
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> Now for each timeout it will print detailed syscall and timing information, if time goes backwards, it should catch it.
It appears that time is moving forward:
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06 Nov 2024, Amy Roberts, Bug Report, Difficulty running MIDAS on Rocky 9.4
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After following Konstantin's debugging suggestions, I thought I would try to replicate
the issue on my own computer. My hope was that I could provide instructions for
replicating the bug so that the MIDAS team could try debugging things more easily.
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 12 Feb 2020, Marius Koeppel, Forum, Difference between "Event Data Size" and "All Bank Size"
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Dear all,
we are trying to build Midas events on FPGAs and send them directly to the midas
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12 Feb 2020, Stefan Ritt, Forum, Difference between "Event Data Size" and "All Bank Size"
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Thanks for pointing out this error. The "All Bank Size" contains the size of all banks including their
bank headers, but NOT the global bank header itself. I modified the documentation accordingly.
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20 Feb 2020, Konstantin Olchanski, Forum, Difference between "Event Data Size" and "All Bank Size"
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> Thanks for pointing out this error. The "All Bank Size" contains the size of all banks including their
> bank headers, but NOT the global bank header itself. I modified the documentation accordingly.
>
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23 Oct 2023, Francesco Renga, Forum, Device with inputs and outputs
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Dear all,
I'm writing a very simple device driver starting from the nulldev.cxx
example.
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24 Oct 2023, Stefan Ritt, Forum, Device with inputs and outputs
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The "multi" class driver takes care of that. It properly calls the SET and GET functions
with the correct index. The code for that is in multi.cxx:105:
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16 Dec 2021, Zaher Salman, Forum, Device driver for modbus
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| Dear all, does anyone have an example of for a device driver using modbus or modbus tcp to communicate with a device and willing to share it? Thanks. |
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26 Jan 2022, Konstantin Olchanski, Forum, Device driver for modbus
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> Dear all, does anyone have an example of for a device driver using modbus or modbus tcp to communicate with a device and willing to share it? Thanks.
I have not seen any modbus devices recently, so all my code and examples are quite old.
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10 May 2023, Lukas Gerritzen, Suggestion, Desktop notifications for messages
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It would be nice to have MIDAS notifications pop up outside of the browser window.
To get enable this myself, I hijacked the speech synthesis and I added the following to mhttpd_speak_now(text) inside mhttpd.js:
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10 May 2023, Stefan Ritt, Suggestion, Desktop notifications for messages
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[quote="Lukas Gerritzen"]It would be nice to have MIDAS notifications pop up outside of the browser window.[/quote]
There are certainly dozens of people who do "I don't like pop-up windows all the time". So this has to come with a switch in the config page to turn it |
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10 May 2023, Lukas Gerritzen, Suggestion, Desktop notifications for messages
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[quote="Stefan Ritt"]
people using Edge/Chrome/Safari/Opera saying "it's not working on my specific browser on version x.y.z". So I'm only willing to add that feature if we
are sure it's a standard things working in most environments.
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