debugging instructions

[Jasem Mutlaq]

Thank you Hy for the tests. I haven't run it yet, but I wonder if perhaps
there is an issue with wcs library... is that thread safe? Can you try
disabling all wcs related code and see if that makes any difference?

--
Best Regards,
Jasem Mutlaq



On Tue, Apr 5, 2022 at 5:55 AM Hy Murveit <murveit at gmail.com> wrote:

> Folks,
>
> I believe there are rare but often-enough memory issues when running
> stellarsolver.
> I can't track it down, so I created this test to help us debug it.
>
> If you have time, could you take a look?
>
> I've create a branch with a test which runs stellarsolver star detection
> in 3 parallel threads
> https://invent.kde.org/murveit/kstars/-/tree/solver-test1
> (if you uncomment some code, a 4th thread with a solver will run too).
>
> To run this, you need to also download some data that it points to:
> See the google drive folder:
>
> https://drive.google.com/drive/folders/1eUrcJd1IENvcRUtnwsaUNWKwKuj5G077?usp=sharing
> Download those files into some directory on your machine.
>
> You'd then edit near the end of kstars/Tests/fitsviewer/testfitsdata.cpp
> at the start of the test testParallelSolvers and change the directory there
> where you've put the files from my drive folder.
>
> Then you can compile testfitsdata and run it as:
> bin/testfitsdata testParallelSolvers
>
> It will detect stars for 3 sets of data.
>
>    - 200 guider files in thread 1
>    - 200 more guider files in thread 2
>    - 30 subs in thread3
>    - (commented out) 30 guider files using the solver
>
> It takes a minute or two.
>
> If I run this a few times, I usually get some kind of memory corruption
> error. Can't seem to figure it out yet, though. I've compiled with the
> latest KStars, stellarsolver and indi-core.
>
> Here's an example of one run that failed:
>
> > bin/testfitsdata testParallelSolvers
> ********* Start testing of TestFitsData *********
> Config: Using QtTest library 5.12.8, Qt 5.12.8 (x86_64-little_endian-lp64
> shared (dynamic) release build; by GCC 9.3.0)
> PASS   : TestFitsData::initTestCase()
> QINFO  : TestFitsData::testParallelSolvers() org.kde.kstars.fits: Loading
> file  "/home/hy/Desktop/SharedFolder/DEBUG-solver/guide_frame_00-20-08.fits"
> QINFO  : TestFitsData::testParallelSolvers() org.kde.kstars.fits: Loading
> file  "/home/hy/Desktop/SharedFolder/DEBUG-solver/guide_frame_00-20-30.fits"
> QINFO  : TestFitsData::testParallelSolvers() org.kde.kstars.fits: Loading
> file
>  "/home/hy/Desktop/SharedFolder/DEBUG-solver/m5_Light_LPR_120_secs_2022-03-12T04-44-56_201.fits"
> Found one coordinate representation.
> Found one coordinate representation.
> QINFO  : TestFitsData::testParallelSolvers() "#0:
> /home/hy/Desktop/SharedFolder/DEBUG-solver/guide_frame_00-20-08.fits HFR
> 1.98326"
> QINFO  : TestFitsData::testParallelSolvers() org.kde.kstars.fits: Loading
> file  "/home/hy/Desktop/SharedFolder/DEBUG-solver/guide_frame_00-20-12.fits"
> QINFO  : TestFitsData::testParallelSolvers() "#0:
> /home/hy/Desktop/SharedFolder/DEBUG-solver/guide_frame_00-20-30.fits HFR
> 2.0226"
> QINFO  : TestFitsData::testParallelSolvers() org.kde.kstars.fits: Loading
> file  "/home/hy/Desktop/SharedFolder/DEBUG-solver/guide_frame_00-20-34.fits"
> ...
> QINFO  : TestFitsData::testParallelSolvers() org.kde.kstars.fits: Loading
> file  "/home/hy/Desktop/SharedFolder/DEBUG-solver/guide_frame_00-20-46.fits"
> Found one coordinate representation.
> Found one coordinate representation.
> QINFO  : TestFitsData::testParallelSolvers() "#102:
> /home/hy/Desktop/SharedFolder/DEBUG-solver/guide_frame_00-20-21.fits HFR
> 1.9854"
> QINFO  : TestFitsData::testParallelSolvers() org.kde.kstars.fits: Loading
> file  "/home/hy/Desktop/SharedFolder/DEBUG-solver/guide_frame_00-20-24.fits"
> QINFO  : TestFitsData::testParallelSolvers() "#101:
> /home/hy/Desktop/SharedFolder/DEBUG-solver/guide_frame_00-20-46.fits HFR
> 2.04488"
> QINFO  : TestFitsData::testParallelSolvers() org.kde.kstars.fits: Loading
> file  "/home/hy/Desktop/SharedFolder/DEBUG-solver/guide_frame_00-20-30.fits"
> Found one coordinate representation.
> corrupted size vs. prev_size
> Found 0 coordinate representations.
> Aborted (core dumped)
>
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