When running validate I got these failures (below) from Safe Haskell. Unexpected failures: ghci/scripts Defer02 [bad stderr] (ghci) indexed-types/should_fail T7786 [stderr mismatch] (normal) perf/compiler T3064 [stat too good] (normal) safeHaskell/check/pkg01 ImpSafeOnly01 [exit code non-0] (normal) safeHaskell/check/pkg01 ImpSafeOnly02 [exit code non-0] (normal) safeHaskell/check/pkg01 ImpSafeOnly03 [stderr mismatch] (normal) safeHaskell/check/pkg01 ImpSafeOnly04 [exit code non-0] (normal) safeHaskell/check/pkg01 ImpSafeOnly05 [stderr mismatch] (normal) safeHaskell/check/pkg01 ImpSafeOnly06 [exit code non-0] (normal) safeHaskell/check/pkg01 ImpSafeOnly07 [stderr mismatch] (normal) safeHaskell/check/pkg01 ImpSafeOnly08 [stderr mismatch] (normal) safeHaskell/check/pkg01 ImpSafeOnly09 [stderr mismatch] (normal) safeHaskell/check/pkg01 ImpSafeOnly10 [exit code non-0] (normal) safeHaskell/check/pkg01 safePkg01 [bad exit code] (normal) But when I manually did cd testsuite/tests/safeHaskell/check make all went fine. Everything passed. Could this be a parallel-make synch problem or something? Or a make-clean problem? Simon =====> ImpSafeOnly01(normal) 1163 of 3620 [0, 0, 0] cd ./safeHaskell/check/pkg01 && $MAKE -s --no-print-directory mkPackageDatabase.ImpSafeOnly01 VANILLA=--disable-library-vanilla PROF=--disable-library-profiling DYN=--enable-shared Wrong exit code (expected 0 , actual 2 ) Stdout: pdb.safePkg01/local.db: safePkg01-1.0 trusted: False M_SafePkg Stderr: pdb.safePkg01/dist/build/M_SafePkg.hi: openBinaryFile: does not exist (No such file or directory) make[3]: *** [safePkg01] Error 1 *** unexpected failure for safePkg01(normal) cd ./safeHaskell/check/pkg01 && $MAKE -s --no-print-directory cleanPackageDatabase.safePkg01 =====> ImpSafeOnly02(normal) 1164 of 3620 [0, 1, 0] cd ./safeHaskell/check/pkg01 && $MAKE -s --no-print-directory mkPackageDatabase.ImpSafeOnly02 VANILLA=--disable-library-vanilla PROF=--disable-library-profiling DYN=--enable-shared cd ./safeHaskell/check/pkg01 && '/5playpen/simonpj/HEAD/bindisttest/install dir/bin/ghc' -fforce-recomp -dcore-lint -dcmm-lint -dno-debug-output -no-user-package-db -rtsopts -fno-ghci-history -c ImpSafeOnly01.hs -fpackage-trust -package-db pdb.ImpSafeOnly01/local.db -trust base >ImpSafeOnly01.comp.stderr 2>&1 Compile failed (status 256) errors were: ImpSafeOnly01.hs:4:1: Failed to load interface for ‛M_SafePkg’ There are files missing in the ‛safePkg01-1.0’ package, try running 'ghc-pkg check'. Use -v to see a list of the files searched for. *** unexpected failure for ImpSafeOnly01(normal)