Profiled GHC-Head segfaults while building vector.

Summary

Building library for vector-0.10.12.3..
[ 1 of 19] Compiling Data.Vector.Fusion.Util ( Data\Vector\Fusion\Util.hs, dist\build\Data\Vector\Fusion\Util.o )
[ 2 of 19] Compiling Data.Vector.Fusion.Stream.Size ( Data\Vector\Fusion\Stream\Size.hs, dist\build\Data\Vector\Fusion\Stream\Size.o )

Data\Vector\Fusion\Stream\Size.hs:25:10: warning: [-Wmissing-methods]
    * No explicit implementation for
        `*', `abs', and `signum'
    * In the instance declaration for `Num Size'
   |
25 | instance Num Size where
   |          ^^^^^^^^
[ 3 of 19] Compiling Data.Vector.Internal.Check ( Data\Vector\Internal\Check.hs, dist\build\Data\Vector\Internal\Check.o )
[ 4 of 19] Compiling Data.Vector.Fusion.Stream.Monadic ( Data\Vector\Fusion\Stream\Monadic.hs, dist\build\Data\Vector\Fusion\Stream\Monadic.o )
<command line>: addDLL: HSprimitive-0.6.1.1-429ce690e44345efb4565de078caf66e0486fb9a or depende
CallStack (from -prof):
  HscMain.hscCompileCoreExpr' (compiler\main\HscMain.hs:(1893,1)-(1915,24))
  HscMain.hscCompileCoreExpr (compiler\main\HscMain.hs:(1889,1)-(1890,84))
  TcRnDriver.tc_rn_src_decls (compiler\typecheck\TcRnDriver.hs:(530,4)-(602,7))
  TcRnDriver.tcRnSrcDecls (compiler\typecheck\TcRnDriver.hs:267:34-74)
  HscMain.ioMsgMaybe (compiler\main\HscMain.hs:(267,1)-(272,128))
  HscMain.Typecheck-Rename (compiler\main\HscMain.hs:(511,16)-(513,39))
  HscMain.tcRnModule' (compiler\main\HscMain.hs:(498,1)-(557,45))
  HscMain.hsc_typecheck (compiler\main\HscMain.hs:(470,1)-(493,38))
  HscMain.hscTypecheck (compiler\main\HscMain.hs:(462,1)-(465,20))
  HscMain.hscFileFrontEnd (compiler\main\HscMain.hs:935:1-68)
  HscMain.genericHscFrontend' (compiler\main\HscMain.hs:(710,1)-(711,58))
  HscMain.genericHscFrontend (compiler\main\HscMain.hs:(706,1)-(707,67))
  HscMain.hscIncrementalFrontend (compiler\main\HscMain.hs:(641,1)-(703,81))
  HscMain.hscIncrementalCompile (compiler\main\HscMain.hs:(731,1)-(780,52))
  GhcMake.upsweep_mod.compile_it (compiler\main\GhcMake.hs:(1556,13)-(1558,66))
  GhcMake.upsweep_mod (compiler\main\GhcMake.hs:(1501,1)-(1658,49))
  GhcMake.upsweep.upsweep' (compiler\main\GhcMake.hs:(1370,3)-(1469,91))
  GhcMake.upsweep (compiler\main\GhcMake.hs:(1352,1)-(1469,91))
  GhcMake.load'.upsweep_fn (compiler\main\GhcMake.hs:(491,9)-(492,41))
  GhcMake.withDeferredDiagnostics (compiler\main\GhcMake.hs:(2598,1)-(2628,15))
  GhcMake.load'.checkHowMuch (compiler\main\GhcMake.hs:(368,9)-(370,27))
  GhcMake.load' (compiler\main\GhcMake.hs:(344,1)-(592,38))
  GhcMake.load (compiler\main\GhcMake.hs:(268,1)-(272,16))
  GHC.withCleanupSession (compiler\main\GHC.hs:(478,1)-(486,27))
  GHC.runGhc (compiler\main\GHC.hs:(453,1)-(458,26))
  GHC.defaultErrorHandler (compiler\main\GHC.hs:(393,1)-(425,7))

Access violation in generated code when reading 0x10f38e18

 Attempting to reconstruct a stack trace...

   Frame        Code address
 * 0x8c2d930    0x6e913f0 E:\ghc_head\_prof\stage1\bin\ghc.exe+0x6a913f0
 * 0x8c2d970    0x6e9140c E:\ghc_head\_prof\stage1\bin\ghc.exe+0x6a9140c
 * 0x8c2d9e0    0x6e92432 E:\ghc_head\_prof\stage1\bin\ghc.exe+0x6a92432
 * 0x8c2da40    0x6e97e54 E:\ghc_head\_prof\stage1\bin\ghc.exe+0x6a97e54
 * 0x8c2da70    0x6e985c9 E:\ghc_head\_prof\stage1\bin\ghc.exe+0x6a985c9
 * 0x8c2da78    0x6c32fd4 E:\ghc_head\_prof\stage1\bin\ghc.exe+0x6832fd4
 * 0x8c2da80    0xaef4e18
 * 0x8c2da88    0x1
 * 0x8c2da90    0x30c
 * 0x8c2da98    0x30c

cabal.exe: Failed to build vector-0.10.12.3 (which is required by lens-4.18).
The build process terminated with exit code 11

Steps to reproduce

hadrian/build.sh -j8 --no-color -o_prof --flavour=prof


git clone https://github.com/ekmett/lens.git --depth=1
cd lens
<add hackage-head stanza to cabal.project>
cabal new-build --ghc-options="+RTS -p -RTS" -w /e/ghc_head/_prof/stage1/bin/ghc.exe --allow-newer="base,template-haskell,th-abstraction,pretty,parallel" -j1

Expected behavior

Don't crash

Environment

• GHC version used: Branch based on ghc-head commit cff44d86

Optional:

• Operating System: Windows
• System Architecture: x64