[GHC] #12492: internal error: allocation of 1048608 bytes too large

[GHC]

#12492: internal error: allocation of 1048608 bytes too large
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        Reporter:  erikd             |                Owner:
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:  8.0.2
       Component:  Runtime System    |              Version:  8.0.1
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by simonmar):

 Ah, I didn't realise it had custom Cmm.  Yes, that could account for the
 observed behaviour.

 I think it should be possible to use a conditional on the size of the
 object and call `allocate()` for a large object (with a `MAYBE_GC` check),
 or `ALLOC_PRIM_P` for a small object.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12492#comment:10>
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