[GHC] #696: segmentation fault in ./genprimopcode (x86_64)

[Ian Lynagh]

[I was going to reply to #631 in trac with this, but having created an
account I can see no way to do so]

On Thu, Mar 02, 2006 at 12:28:48PM +0000, Simon Marlow wrote:
> Ian Lynagh wrote:
> 
> >Currently I have this for most arches:
> >
> >    echo "GhcUnregisterised=YES" >> mk/build.mk
> >    echo "SplitObjs=NO" >> mk/build.mk
> >
> >I'll add
> >
> >    echo "GhcWithNativeCodeGen=NO" >> mk/build.mk
> >
> >Is there anything else you'd recommend?
> 
> Does GHCi work on an unregisterised build?  If it does, I'm pleasantly 
> surprised :-)  If not, you probably want GhcWithInterpreter=NO too.

It doesn't seem to entirely not work, e.g. things like
    map Char.ord "foo"
are fine, but it also doesn't entirely work, e.g. bug #631.

With
   echo "GhcUnregisterised=YES" >> mk/build.mk
   echo "GhcWithNativeCodeGen=NO" >> mk/build.mk
   echo "SplitObjs=NO" >> mk/build.mk
on a powerpc:

igloo at bruckner:~$ ghci bug.hs
[...]
Compiling Main             ( bug.hs, interpreted )
Ok, modules loaded: Main.
*Main> f
Segmentation fault
igloo at bruckner:~$ ghci bug.hs 
[...]
Compiling Main             ( bug.hs, interpreted )
Ok, modules loaded: Main.
*Main> map Char.ord "foo"
[102,111,111]
*Main> print (D 'a')
<interactive>: internal error: scavenge_one: strange object 32137
    Please report this as a bug to glasgow-haskell-bugs at haskell.org,
    or http://www.sourceforge.net/projects/ghc/
igloo at bruckner:~$

and on a sparc:

igloo at vore:~$ ghci bug.hs
[...]
Compiling Main             ( bug.hs, interpreted )
Ok, modules loaded: Main.
*Main> f
Bus error
igloo at vore:~$ ghci bug.hs
[...]
Compiling Main             ( bug.hs, interpreted )
Ok, modules loaded: Main.
*Main> map Char.ord "foo"
[102,111,111] 
*Main> print (D 'a')
<interactive>: internal error: scavenge_one: strange object 33216
    Please report this as a bug to glasgow-haskell-bugs at haskell.org,
    or http://www.sourceforge.net/projects/ghc/
igloo at vore:~$ 


I haven't tried on x86/amd64 with the above build.mk. Is this something
you'll look into fixing, or should I just drop ghci too?


Thanks
Ian