[Libreoffice-bugs] [Bug 144902] New version of calc and impress can't run on windows 7 (since version 7.1.5)

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=144902

--- Comment #29 from ywupub at 163.com ---
(In reply to Mike Kaganski from comment #27)
> (In reply to ywupub from comment #26)
> > >>> import uno
> > Traceback (most recent call last):
> >   File "<stdin>", line 1, in <module>
> >   File "C:\Program Files\LibreOffice\program\uno.py", line 19, in <module>
> >     import pyuno
> > ImportError: DLL load failed while importing pyuno: The parameter is
> > incorrect.
> 
> So we have some problem related to loading of C:\Program
> Files\LibreOffice\program\pyuno.pyd (which is itself a DLL). Loading it into
> Python fails with system error 87 ERROR_INVALID_PARAMETER [1]; and it's
> unclear what gives that error.
> 
> Could you please try the same procedure with Python (you may use 'import
> pyuno' instead of 'import uno'; nothing else is necessary - we only need to
> diagnose this specific failure), but before issuing this command, run
> Sysinternals' ProcMon, and check if something comes out from it? Maybe there
> will be some entries from inside the loaded pyuno.pyd, which ProcMon can
> show, and allow to look into call stack, so that we see how far it goes when
> loading, or even what has failed.
> 
> Otherwise, we could need to try to use WinDbg to diagnose this on a low
> level [2], attaching it to the Python process, putting a breakpoint to the
> functions inside pyuno.pyd (e.g., PyInit_pyuno - *if* it goes as far as
> calling it), and try to step through until we find a system call resulting
> in this error code ... which could be very tedious process.
> 
> [1]
> https://docs.microsoft.com/en-us/windows/win32/debug/system-error-codes--0-
> 499-
> [2] https://wiki.documentfoundation.org/How_to_get_a_backtrace_with_WinDbg

(In reply to Mike Kaganski from comment #28)
> API monitor [1] may also be useful. I have tested it locally (I downloaded
> the portable version from the link; attached to the python.exe process - the
> one with the Pythonic icon (there are two "python.exe" processes); and
> selected everything in API Filter section before running 'import pyuno' in
> Python), and I saw all the Windows API calls - lots of them - with each
> result. So using that, we could also find which function returned the error.
> 
> [1] http://www.rohitab.com/apimonitor#Download

I'd like to test, but I think maybe some of these tests beyond my
understanding...

You mean python standalone on windows?
For Sysinternals' ProcMon, I tried to run it before, but it says "Unable to
load Process Monitor device driver".

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