Evil Mangler hanging while building 5.04.3-1 on RedHat 8.0, 9.0?

[Andy Moran]

On Tuesday 22 April 2003 06:38 am, you wrote:
> > On Tuesday 22 April 2003 02:30 am, Simon Marlow wrote:
> > > Wow!  "GHC makes my machine hang"?  Surely this is a Linux
> >
> > problem, not
> >
> > > a GHC problem?
> >
> > Well, ultimately, yes.  But the hanging is repeatable with GHC on the
> > aforementioned Haskell modules.
>
> Maybe watching 'top' in a separate window while running the offending
> command will yield some clues?

Haven't tried top, but I have tried strace, but have been unable to decipher 
it.  I'll have a go at collecting strace data and send it to you (if you're 
interested), along with my build.mk. [ pause ] top reports ghc-asm to be 
running when the machine hangs.

Now, this seems to a bad interaction between the EM (or some other part of 
GHC, but the EM seems most likely) and this one computer, as it doesn't 
happen on my laptop (also having run RedHat 8.0, now running RedHat 9.0).  
I don't think it's bad memory or a bad disk, as I've not had any other 
problems with the machine, post- RedHat installation (the RedHat installer 
dies a few times before succeeding, but that's not so unusual), but I 
haven't ruled that out (well, IBM's own diagnostic tool gives the drive the 
thumbs up; haven't checked the memory, but a memory would seem to be more 
likely to occur less repeatedly).

I'm keen to get to the bottom of this, because it will either exonerate GHC 
(and lead me to buy a new harddrive or memory :-), or help us fix some 
undesirable EM behavior.

Cheers,

Andy

-- 
Andy Moran                                              Ph.  (503) 526 3472
Galois Connections Inc.                                 Fax. (503) 350 0833
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