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Subject:	Re: headache on build repeatibility: octave vs BLODA ?
To:	cygwin AT cygwin DOT com
References:	<2904b4fa-6349-bd3e-c4ff-4b32a0bb3838 AT gmail DOT com> <87y2tvs278 DOT fsf AT Rainer DOT invalid> <9b370970-fcfe-cca9-321f-973de777642a AT gmail DOT com> <878sluhcc1 DOT fsf AT Otto DOT invalid>
From:	Marco Atzeri <marco DOT atzeri AT gmail DOT com>
Message-ID:	<08ac898e-e7f9-c8e9-91ba-d4ee33f2e27c@gmail.com>
Date:	Sun, 26 Jan 2020 09:38:13 +0100
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Am 26.01.2020 um 09:05 schrieb ASSI:
> Marco Atzeri writes:
>> at least I know that is not just my machine.
>> When I released the package was
>>
>>
>>    libinterp/corefcn/file-io.cc-tst
>> ............................... PASS 90/90
> 
> Based on the test name there may be an assumption built into the code
> about how the filesystem behaves that isn't guaranteed on Windows/Cygwin
> or even POSIX.  If it's simply an error condition not getting checked it
> should be reproducible under debugging, but you're mostly out of luck if
> it's relying on a specific order or atomicity of certain operations, as
> debugging will almost always serialize the execution to the point where
> these types of errors do not manifest.
> 
> 
> Regards,
> Achim.

the other problem of debugging is that the backtrace is trash
after the segfault and that of course Octave is a
400 Kg gorilla with all its dependencies..

I will try anyway

Thanks
Marco






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