Race condition in localedata tests?

[Carlos O'Donell]

On 11/18/2014 11:41 AM, H.J. Lu wrote:
>>> Do the tests have explicit dependencies on the locales they use?
>>> Perhaps it just happens that de_DE.UTF-8 hits the filesystem by
>>> the time the test runs.
>>>
>>
>> localedata/Makefile has
>>
>> # Dependency for the locale files.  We actually make it depend only on
>> # one of the files.
>> $(addprefix $(objpfx),$(CTYPE_FILES)): %: \
>>   gen-locale.sh $(common-objpfx)locale/localedef Makefile \
>>   $(addprefix charmaps/,$(CHARMAPS)) $(addprefix locales/,$(LOCALE_SRCS))
>>         @$(SHELL) gen-locale.sh $(common-objpfx) \
>>                   '$(built-program-cmd-before-env)' '$(run-program-env)' \
>>                   '$(built-program-cmd-after-env)' $@; \
>>         $(evaluate-test)
>>
>> $(addsuffix .out,$(addprefix $(objpfx),$(tests))): %: \
>>   $(addprefix $(objpfx),$(CTYPE_FILES))
>>
>> $(objpfx)sort-test.out: sort-test.sh $(objpfx)collate-test $(objpfx)xfrm-test \
>>                        $(test-input-data) $(addprefix $(objpfx),$(CTYPE_FILES))
>>         $(SHELL) $< $(common-objpfx) '$(test-program-prefix-before-env)' \
>>           '$(run-program-env)' '$(test-program-prefix-after-env)' \
>>           $(test-input) \
>>           > $@; \
>>         $(evaluate-test)
>>
>> However, there is no $(CTYPE_FILES) dependency for those tests
>> above, which fail at random under heavy load with parallel build.
>>
>>
> 
> I opened:
> 
> https://sourceware.org/bugzilla/show_bug.cgi?id=17617

H.J.,
 
Thanks. I expected this might be the case. We'd seen other issues with
high-level parallelism failing.

Kostya,

Given that you're the only other person I know who runs the glibc testsuite
at high levels of parallelism, was there anything else you saw in your testing
that fell over? I know you mentioned locales once. I know some of the tests
don't parallelize well, but that's not a  failure per se.

Cheers,
Carlos.