Testsuite failures for 8.6.5 on PowerPC

Run on Fedora 29:

Unexpected results from:
TEST="ManyAlternatives ManyConstructors T10858 T12425 T12707 T12962 T13035 \
T13379 T1969 T2552 T3064 T3294 T3816 T4801 T5321FD T5321Fun T5363 T5559 T6048 \
T680 T783 T9203 T9233 T9630 TH_spliceE5_prof_ext haddock.Cabal haddock.base parsing001 \
plugin-recomp-flags plugin-recomp-pure prof-doc-fib prof-doc-last profinline001 \
scc001 scc002 scc003 scc005 user001"

SUMMARY for test run started at Sat Jun  8 04:17:49 2019 UTC
 0:33:09 spent to go through
    6525 total tests, which gave rise to
   25154 test cases, of which
   18518 were skipped

      41 had missing libraries
    6448 expected passes
     109 expected failures

       0 caused framework failures
       1 caused framework warnings
       0 unexpected passes
      17 unexpected failures
      21 unexpected stat failures

Unexpected failures:
   plugins/plugin-recomp-pure.run          plugin-recomp-pure [bad stdout] (normal)
   plugins/plugin-recomp-flags.run         plugin-recomp-flags [bad stdout] (normal)
   profiling/should_run/scc001.run         scc001 [bad exit code] (ghci-ext-prof)
   profiling/should_run/scc002.run         scc002 [bad exit code] (ghci-ext-prof)
   profiling/should_run/scc003.run         scc003 [bad exit code] (ghci-ext-prof)
   profiling/should_run/scc005.run         scc005 [bad exit code] (ghci-ext-prof)
   profiling/should_run/T680.run           T680 [bad exit code] (ghci-ext-prof)
   profiling/should_run/T2552.run          T2552 [bad exit code] (ghci-ext-prof)
   profiling/should_run/prof-doc-fib.run   prof-doc-fib [bad exit code] (ghci-ext-prof)
   profiling/should_run/T5559.run          T5559 [bad exit code] (ghci-ext-prof)
   profiling/should_run/prof-doc-last.run  prof-doc-last [bad exit code] (ghci-ext-prof)
   profiling/should_run/profinline001.run  profinline001 [bad exit code] (ghci-ext-prof)
   profiling/should_run/T5363.run          T5363 [bad exit code] (ghci-ext-prof)
   profiling/should_run/T12962.run         T12962 [bad exit code] (ghci-ext-prof)
   th/TH_spliceE5_prof_ext.run             TH_spliceE5_prof_ext [bad exit code] (normal)
   ../../libraries/unix/tests/user001.run  user001 [bad stdout] (normal)
   ../../libraries/unix/tests/T3816.run    T3816 [bad exit code] (normal)

Unexpected stat failures:
   deriving/perf/T10858.run            T10858 [stat not good enough] (normal)
   perf/compiler/T3064.run             T3064 [stat not good enough] (normal)
   perf/compiler/T1969.run             T1969 [stat not good enough] (normal)
   perf/compiler/parsing001.run        parsing001 [stat too good] (normal)
   perf/compiler/T4801.run             T4801 [stat not good enough] (normal)
   perf/compiler/T783.run              T783 [stat not good enough] (normal)
   perf/compiler/T5321FD.run           T5321FD [stat not good enough] (normal)
   perf/compiler/T5321Fun.run          T5321Fun [stat not good enough] (normal)
   perf/compiler/T6048.run             T6048 [stat not good enough] (optasm)
   perf/compiler/T3294.run             T3294 [stat not good enough] (normal)
   perf/compiler/T9233.run             T9233 [stat not good enough] (normal)
   perf/compiler/T12425.run            T12425 [stat not good enough] (optasm)
   perf/compiler/T13035.run            T13035 [stat not good enough] (normal)
   perf/compiler/T13379.run            T13379 [stat not good enough] (normal)
   perf/compiler/T12707.run            T12707 [stat not good enough] (normal)
   perf/compiler/ManyAlternatives.run  ManyAlternatives [stat not good enough] (normal)
   perf/compiler/ManyConstructors.run  ManyConstructors [stat not good enough] (normal)
   perf/compiler/T9630.run             T9630 [stat not good enough] (normal)
   perf/haddock/haddock.base.run       haddock.base [stat too good] (normal)
   perf/haddock/haddock.Cabal.run      haddock.Cabal [stat too good] (normal)
   perf/should_run/T9203.run           T9203 [stat too good] (normal)

Framework warnings:
   .  T13701 [numfield-no-expected] (No expected value found for bytes allocated in num_field check)

make[1]: *** [../mk/test.mk:329: test] Error 1
make[1]: Leaving directory '/home/bgamari/ghc-8.6.5/testsuite/tests'
make: *** [Makefile:223: test] Error 2