Hi Mark,
thank you very much for your very interesting hint. Went back and
re-read your posting from September 30th, and indeed, it is very
possible, if not likely that in this particular case that is the reason
for the failures/errors.
All tests in the BSF4Rexx testsuite run without errors (the student's
tests and my new ones, excecercising the new features). Only, if
entering the "high-stress" multithreading tests (with literally
thousands of threads altogether) does that problem occur. AFAIK, in
Linux threads are realized via processes and as such, it would make
perfect sense to explain this behaviour!
Again, thank you very much again for pointing at your interesting post
of September 30th.
Regards,
---rony
Mark Miesfeld wrote:
> On Tue, Oct 13, 2009 at 8:03 AM, Rony G. Flatscher
> <[email protected]> wrote:
>
>
>> (stting in a workshop) today I have been able to not only create a
>> 64-bit deb package, but also a 32-bit deb package for ooRexx from trunk,
>> rev. 5257.
>>
>> These versions are used to run the BSF4Rexx testsuite (as for the heavy
>> multithreading tests some post-release bugifxes in ooRexx are needed).
>>
>> Running the testsuite under those two Linux versions yields runtime
>> errors in the multithreading test groups.
>>
>> However, running some of those test groups individually (separately on
>> their own and not as part of a group of test groups) yields error-free runs!
>>
>
> Rony,
>
> You might want to review this post: FYI test suite and low memory
> Linux systems
>
> sent on September 30th and see if that applies. If your test suite
> creates a lot of processes and your system does not have a lot of
> memory available, by today's standards, this could be the cause.
>
> This is especially likely on a Debian system, which by default does
> not install a high memory enabled kernel. The default Debian install
> will use a kernel image limited to around 800 megabytes, even if you
> have much more memory in your system.
>
> --
> Mark Miesfeld
>
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