[GHC] #2185: Memory leak with parMap

GHC cvs-ghc at haskell.org
Thu Apr 1 05:24:19 EDT 2010


#2185: Memory leak with parMap
-----------------------------------------+----------------------------------
  Reporter:  igloo                       |          Owner:  simonmar        
      Type:  bug                         |         Status:  reopened        
  Priority:  high                        |      Milestone:  6.14.1          
 Component:  Runtime System              |        Version:  6.8.2           
Resolution:                              |       Keywords:                  
Difficulty:  Moderate (less than a day)  |             Os:  Unknown/Multiple
  Testcase:                              |   Architecture:  Unknown/Multiple
   Failure:  Runtime performance bug     |  
-----------------------------------------+----------------------------------
Changes (by simonmar):

  * priority:  normal => high
  * difficulty:  Unknown => Moderate (less than a day)
  * milestone:  6.12 branch => 6.14.1


Comment:

 The [http://hackage.haskell.org/package/parallel new parallel package] on
 Hackage fixes the space leak in this program (change `rnf` to `rdeepseq`
 to compile it).  I'm leaving the ticket open and moving it onto the 6.14.1
 branch, because we still need to change the GC policy so that sparks are
 not treated as GC roots.

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/2185#comment:9>
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