Validate of GHC HEAD freezes on FreeBSD

[Kazu Yamamoto ( 山本和彦 )]

OK. I found an alternative timeout command written in Haskell.  And
insert "unblockSignals fullSignalSet" to it. Now "validate" can
finish.

I guess that one process (possibly GNU make) set signal mask and its
children inherit it. What is a right solution for this?

--Kazu

> I confirmed that testsuite/timeout/install-inplace/bin/timeout.py does
> not receive SIGALRM, so it is waiting forever.
> 
> Any suggestions to fix this?
> 
> --Kazu
> 
>> Hello,
>> 
>> The "validate" script against GHC HEAD freezes on FreeBSD 9.1.
>> After sync-all, I did as follow:
>> 
>> ----------------------------------------------------------------
>> % config_args="--with-iconv-includes=/usr/local/include --with-iconv-libraries=/usr/local/lib --with-gmp-includes=/usr/local/include --with-gmp-libraries=/usr/local/lib --with-gcc=/usr/local/bin/gcc47" CPUS=10 sh validate
>> ----------------------------------------------------------------
>> 
>> This stopped quickly due to this problem:
>> 	http://hackage.haskell.org/trac/ghc/ticket/7592
>> 
>> Then I executed "validate" with "--no-clean" again.
>> 
>> ----------------------------------------------------------------
>> % config_args="--with-iconv-includes=/usr/local/include --with-iconv-libraries=/usr/local/lib --with-gmp-includes=/usr/local/include --with-gmp-libraries=/usr/local/lib --with-gcc=/usr/local/bin/gcc47" CPUS=10 sh validate --no-clean
>> ----------------------------------------------------------------
>> 
>> GHC could be compiled and tests started. But this resulted in:
>> 
>> ----------------------------------------------------------------
>> cd ../../libraries/base/tests && '/usr/home/kazu/work/ghc/bindisttest/install   dir/bin/ghc' -fforce-recomp -dcore-lint -dcmm-lint -dno-debug-output -no-user-package-db -rtsopts -fno-ghci-history -o qsemn001 qsemn001.hs    >qsemn001.comp.stderr 2>&1
>> cd ../../libraries/base/tests && ./T5962    </dev/null >T5962.run.stdout 2>T5962.run.stderr
>> cd ../../libraries/base/tests && ./5943    </dev/null >5943.run.stdout 2>5943.run.stderr
>> cd ../../libraries/base/tests && ./T7034    </dev/null >T7034.run.stdout 2>T7034.run.stderr
>> cd ../../libraries/base/tests && ./qsem001    </dev/null >qsem001.run.stdout 2>qsem001.run.stderr
>> cd ../../libraries/base/tests && ./qsemn001    </dev/null >qsemn001.run.stdout 2>qsemn001.run.stderr
>> 
>> Wrong exit code (expected 0 , actual 9 )
>> Stdout:
>> 
>> Stderr:
>> 
>> *** unexpected failure for Chan002(normal)
>> ----------------------------------------------------------------
>> 
>> And waiting for something forever.
>> 
>> Does anyone understand what happened?
>> 
>> Note that I can build GHC HEAD by typing "gmake" (v3.82 installed by
>> the ports system) twice.
>> 
>> This is a serious problem for us since we want to merge our code to
>> GHC HEAD. "validate" against GHC with our code on Linux and Mac passed
>> so far. But "validate" against even vanilla GHC freezes.
>> 
>> P.S.
>> 
>> On FreeBSD, I applied the following patch for validate since
>> unused-but-set-variable is not available.
>> 
>> diff --git a/mk/validate-settings.mk b/mk/validate-settings.mk
>> index 399bf0e..378a3e6 100644
>> --- a/mk/validate-settings.mk
>> +++ b/mk/validate-settings.mk
>> @@ -13,7 +13,7 @@ HADDOCK_DOCS    = YES
>>  # Debian doesn't turn -Werror=unused-but-set-variable on by default, so
>>  # we turn it on explicitly for consistency with other users
>>  ifeq "$(GccLT46)" "NO"
>> -SRC_CC_WARNING_OPTS += -Werror=unused-but-set-variable
>> +#SRC_CC_WARNING_OPTS += -Werror=unused-but-set-variable
>>  # gcc 4.6 gives 3 warning for giveCapabilityToTask not being inlined
>>  SRC_CC_WARNING_OPTS += -Wno-error=inline
>>  endif
>> 
>> --Kazu
>> 
>> 
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