fast test suite failures on OS X with 7.10 RC head

Richard Eisenberg eir at
Mon Mar 23 12:42:53 UTC 2015

I work exclusively on Mac and have been seeing those errors for months. I'll admit to not having looked into them, as I was fairly sure they Weren't My Fault. However, I'd be willing to be a supportive member of a Mac taskforce, reporting what I see and running experiments as requested. I'm afraid I can't volunteer to be a primary member of such a taskforce, as I know very little about the sorts of things that cause platform-specific failures.

Do let me know if anyone out there wants more information (dumps, other experiments) related to the failures above.


On Mar 22, 2015, at 4:24 PM, Thomas Miedema <thomasmiedema at> wrote:

> Maybe it's time for a Mac OS X taskforce?
> All these unexpected test failures on OS X (see also
>, and OS X specific
> tickets in general, could get some more attention:
> -Thomas (who, like most ghc developers it seems, doesn't work on a Mac)
> On Sun, Mar 22, 2015 at 8:40 PM, Carter Schonwald
> <carter.schonwald at> wrote:
>> hey all
>> heres the results from the test suite run on a build of 7.10 head on OS X
>> i believe that some of the test suite failures are because I set the min OS
>> X version to 10.6 rather than 10.7, and that some are because GCC (unlike
>> clang) doesn't support certain OS X specific things like objective C or
>> related header files. I'll add more information as I have the time, but
>> figured I should share this for now
>> Unexpected results from:
>> TEST="T10019 sigcabal01 objc-hi objcpp-hi retc001 linker_unload debug
>> T2276_ghci T9203 T1969 T9675 T783 T5642 T6048"
>> OVERALL SUMMARY for test run started at Sun Mar 22 14:58:07 2015 EDT
>> 0:31:34 spent to go through
>>    4405 total tests, which gave rise to
>>   18027 test cases, of which
>>   13966 were skipped
>>      52 had missing libraries
>>    3950 expected passes
>>      45 expected failures
>>       0 caused framework failures
>>       0 unexpected passes
>>       8 unexpected failures
>>       6 unexpected stat failures
>> Unexpected failures:
>>   cabal/sigcabal01        sigcabal01 [bad stderr] (normal)
>>   codeGen/should_compile  debug [bad stderr] (normal)
>>   driver/objc             objc-hi [exit code non-0] (normal)
>>   driver/objc             objcpp-hi [exit code non-0] (normal)
>>   driver/retc001          retc001 [bad stderr] (normal)
>>   ffi/should_run          T2276_ghci [bad exit code] (ghci)
>>   rts                     linker_unload [bad exit code] (normal)
>>   th                      T10019 [bad stdout] (ghci)
>> Unexpected stat failures:
>>   perf/compiler    T1969 [stat not good enough] (normal)
>>   perf/compiler    T5642 [stat not good enough] (normal)
>>   perf/compiler    T6048 [stat not good enough] (optasm)
>>   perf/compiler    T783 [stat not good enough] (normal)
>>   perf/compiler    T9675 [stat not good enough] (optasm)
>>   perf/should_run  T9203 [stat too good] (normal)
>> ~/D/r/g/testsuite (ghc-7.10|…) $ echo $MACOSX_DEPLOYMENT_TARGET
>> 10.6
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