 09 Dec 2025, Konstantin Olchanski, Bug Report, manalyzer fails to compile on some systems because of missing #include <cmath>
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> /code/midas/manalyzer/manalyzer.cxx:799:27: error: ‘pow’ was not declared in this scope
> 799 | bins[i] = TimeRange*pow(1.1,i)/pow(1.1,Nbins);
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09 Dec 2025, Konstantin Olchanski, Bug Report, odbxx memory leak with JSON ODB dump
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> Thanks for reporting this. It was caused by a
>
> MJsonNode* node = MJsonNode::Parse(str.c_str());
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10 Dec 2025, Stefan Ritt, Bug Report, odbxx memory leak with JSON ODB dump
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> BTW, it looks like we are parsing the whole JSON ODB dump (200k+) on every odbxx access. Can you parse it just once?
You are right. I changed the code so that the dump is only parsed once. Please give it a try.
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11 Dec 2025, Mark Grimes, Bug Report, manalyzer fails to compile on some systems because of missing #include <cmath>
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Thanks. Are you happy for me to update the submodule commit in Midas to use this fix? I should have sufficient permission if you agree.
> > /code/midas/manalyzer/manalyzer.cxx:799:27: error: ‘pow’ was not declared in this scope
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11 Dec 2025, Konstantin Olchanski, Bug Report, odbxx memory leak with JSON ODB dump
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> > BTW, it looks like we are parsing the whole JSON ODB dump (200k+) on every odbxx access. Can you parse it just once?
> You are right. I changed the code so that the dump is only parsed once. Please give it a try.
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11 Dec 2025, Konstantin Olchanski, Bug Report, manalyzer fails to compile on some systems because of missing #include <cmath>
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> TFile.h -> TDirectoryFile.h -> TDirectory.h -> TNamed.h -> TString.h -> TMathBase.h -> cmath -> math.h
reading ROOT release notes, 6.38 removed TMathBase.h from TString.h, with a warning "This change may cause errors during compilation of
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11 Dec 2025, Stefan Ritt, Bug Report, odbxx memory leak with JSON ODB dump
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> Confirmed fixed, thanks! There are 2 small changes I made in odbxx.h, please pull.
There was one missing enable_jsroot in manalyzer, please pull yourself.
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12 Dec 2025, Konstantin Olchanski, Bug Report, odbxx memory leak with JSON ODB dump
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> > Confirmed fixed, thanks! There are 2 small changes I made in odbxx.h, please pull.
> There was one missing enable_jsroot in manalyzer, please pull yourself.
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 14 Jan 2026, Derek Fujimoto, Bug Report, DEBUG messages not showing and related
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I have an application where I want to (optionally) send my own debugging messages to the midas.log file, but am having some problems with this:
* Messages with type MT_DEBUG don't show up in midas.log or on the messages page (calling cm_msg from python)
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14 Jan 2026, Stefan Ritt, Bug Report, DEBUG messages not showing and related
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MT_DEBUG messages are there for debugging, not logging. They only go into the SYSMSG buffer and NOT to the log file. If you want anything logged, just use
MT_INFO.
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14 Jan 2026, Derek Fujimoto, Bug Report, DEBUG messages not showing and related
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Ok thanks for the quick and clear response!
Derek
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05 Feb 2026, Konstantin Olchanski, Bug Report, omnibus bugs from running DarkLight
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We finished running the DarkLight experiment and I am reporting accumulated bugs that we have run into.
1) history plots on 12 hrs, 24 hrs tend to hang with "page not responsive". most plots have 16-20 variables,
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06 Feb 2026, Stefan Ritt, Bug Report, omnibus bugs from running DarkLight 
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Thanks for the detailed report. Let me reply one-by-one.
> 1) history plots on 12 hrs, 24 hrs tend to hang with "page not responsive". most plots have 16-20 variables,
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06 Feb 2026, Stefan Ritt, Bug Report, omnibus bugs from running DarkLight
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> 3) ODB editor clicking on hex number versus decimal number no longer allows editing in hex, Stefan implemented
> this useful feature and it worked for a while, but now seems broken.
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06 Feb 2026, Stefan Ritt, Bug Report, omnibus bugs from running DarkLight
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> 4) ODB editor "right click" to "delete" or "rename" key does not work, the right-click menu disappears
> immediately before I can use it (dl-server-2), click on item (it is now blue), right-click menu disappears
> before I can use it (daq17). it looks like a timing or race condition.
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06 Feb 2026, Stefan Ritt, Bug Report, omnibus bugs from running DarkLight
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> 5) ODB editor "create link" link target name is limited to 32 bytes, links cannot be created (dl-server-2), ok
> on daq17 with current MIDAS.
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22 Oct 2004, Konstantin Olchanski, Bug Fix, mhttpd message colouring
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I commited a fix to mhttpd logic that decides which messages should be shown in
"red" colour- before, any message with square brackets and colons would be
highlighted in red. Now only messages matching the pattern [...:...] are
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09 Nov 2004, Pierre-Andre Amaudruz, Bug Fix, New transition scheme
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Problem:
If cm_set_transition_sequence() is used for changing the sequence number, the
command odbedit> start/stop/resume/pause -v report the propre sequence but the
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25 Feb 2005, Konstantin Olchanski, Bug Fix, fixed: double free in FORMAT_MIDAS ybos.c causing lazylogger crashes
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We stumbled upon and fixed a "double free" bug in src/ybos.c causing crashes in
lazylogger writing .mid files in the FORMAT_MIDAS format (why does it use
ybos.c? Pierre says- for generic file i/o). Why this code had ever worked before
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05 May 2005, Konstantin Olchanski, Bug Fix, fix: minor bit rot in the example experiment
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I fixed some minor bit rot in the example experiment: a few minor Makefile
problems, make the analyzer use the current histogram creation macros, etc. I
also added startup and shutdown scripts. These will be documented as we work
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