Re: ghc 6.10.1 on freebsd 7 amd64 - ghci problems

12 Dec 2008

      On Wed 10.12 13:55, Simon Marlow wrote:

Hi!
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I checked out and translated the head version of ghc today from darcs.
It compiled fine. When I now try to start the ghci I get the following:
---- snip ----
GHCi, version 6.11.20081126: http://www.haskell.org/ghc/  :? for help
ghc: internal error: loadObj: failed to mmap() memory below 2Gb; asked 
for 626688 bytes at 0x40000000, got 0x801635000.  Try specifying an 
address with +RTS -xm<addr> -RTS
  (GHC version 6.11.20081126 for x86_64_unknown_freebsd)
      Please report this as a GHC bug:  
      http://www.haskell.org/ghc/reportabug
      Abort (core dumped)	
---- snip ----
If it helps somehow, you can find the core dump here:
http://www.alios.org/~alios/ghc.core.bz2
That's odd, because 6.8.3 is using 0x40000000 on FreeBSD and is working 
fine (or is it?).
yes, it worked, but I haven't installed anymore - so I'am not sure, where 
it
does maps its stuff into memory.
The memory map shows that there's nothing mapped in at the place we're 
asking for memory, but still FreeBSD decides to give us memory somewhere 
else.  I checked back in 6.8.3 and it looks like we were using MAP_FIXED - 
now MAP_FIXED is dangerous, because it will overwrite existing mappings 
(like the binary itself!), which is why we're not doing that now.
I've committed a patch that uses MAP_FIXED on FreeBSD if other attempts to 
get memory below 2Gb fail.  I'd be grateful if you could test it out, the 
patch is this one, pushed to HEAD today:
Wed Dec 10 11:57:51 GMT 2008  Simon Marlow 
  * On FreeBSD, try MAP_FIXED if ordinary mmap() fails to give us suitable 
memory
  This appears to be necessary on FreeBSD.  It might be necessary on
  other OSs too, but I'm being cautious because using MAP_FIXED can lead
  to crashes by overwriting existing mappings, and we have no (easy) way
  to prevent that.
I've updated my source tree today. 

But now I've problem while compiling the ghc

Here is the the build output:

[...]

/usr/home/alios/src/haskell/ghc/ghc/ghc/stage1-inplace/ghc -DGHCI_TABLES_NEXT_TO_CODE -DSTAGE=2 -package-name ghc-6.11.20081211 -hide-all-packages -no-user-package-conf -i -idist-stage2/build -inativeGen -ibasicTypes -icmm -icodeGen -icoreSyn -icprAnalysis -ideSugar -ighci -ihsSyn -iiface -imain -iparser -iprelude -iprofiling -irename -isimplCore -isimplStg -ispecialise -istgSyn -istranal -itypecheck -itypes -iutils -ivectorise -idist-stage2/build/autogen -Idist-stage2/build/autogen -Idist-stage2/build -I../libffi/build/include -Istage2plus -I../libraries/base/cbits -I../libraries/base/include -I. -Iparser -Iutils -optP-DGHCI -optP-include -optPdist-stage2/build/autogen/cabal_macros.h -odir dist-stage2/build -hidir dist-stage2/build -stubdir dist-stage2/build -package Cabal-1.5.5 -package array-0.2.0.0 -package base-4.0.0.0 -package bytestring-0.9.1.4 -package containers-0.2.0.0 -package directory-1.0.0.2 -package filepath-1.1.0.1 -package haskell98-1.0.1.0 -package hpc-0.5.0.2 -package old-time-1.0.0.1 -package process-1.0.1.1 -package template-haskell-2.3.0.0 -package unix-2.3.1.0 -O -Wall -fno-warn-name-shadowing -fno-warn-orphans -XCPP -XMagicHash -XUnboxedTuples -XPatternGuards -XForeignFunctionInterface -XEmptyDataDecls -XTypeSynonymInstances -XMultiParamTypeClasses -XFlexibleInstances -XRank2Types -XScopedTypeVariables -XDeriveDataTypeable -prof -hisuf p_hi -hcsuf p_hc -osuf p_o -idist-stage2/build  -H32m -O -Rghc-timing -O2  -c nativeGen/MachRegs.lhs -o dist-stage2/build/MachRegs.p_o  -ohi dist-stage2/build/MachRegs.p_hi
ghc: panic! (the 'impossible' happened)
  (GHC version 6.11.20081211 for x86_64-unknown-freebsd):
        CoreToStg.myCollectArgs
    (__scc {trivColorable ghc-6.11.20081211:MachRegs !}
     ghc-6.11.20081211:MachRegs.isSqueesed{v r2FI} [gid] 0 0)
      eta_s2Ni{v} [lid]

Please report this as a GHC bug:  http://www.haskell.org/ghc/reportabug

<>
gmake[4]: *** [dist-stage2/build/MachRegs.p_o] Error 1
gmake[3]: *** [all] Error 1
gmake[3]: Leaving directory `/usr/home/alios/src/haskell/ghc/ghc/compiler'
gmake[2]: *** [build.stage.2] Error 2
gmake[2]: Leaving directory `/usr/home/alios/src/haskell/ghc/ghc/compiler'
gmake[1]: *** [stage2] Error 2
gmake[1]: Leaving directory `/usr/home/alios/src/haskell/ghc/ghc'
gmake: *** [bootstrap2] Error 2

Regards
Markus

-- 
Markus Barenhoff - Langemarckstr. 18 - D-48147 Münster - Germany - Europe - Earth
Tel. +49-251-3956651 - Mob. +49-173-7215776 - e-mail: alios@alios.org
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