[Hackage] #349: cabal install hangs using CPU when resolving dependencies on ghc 6.9

[Hackage]

#349: cabal install hangs using CPU when resolving dependencies on ghc 6.9
---------------------------------+------------------------------------------
  Reporter:  ganesh              |        Owner:        
      Type:  defect              |       Status:  new   
  Priority:  high                |    Milestone:        
 Component:  cabal-install tool  |      Version:        
  Severity:  normal              |   Resolution:        
  Keywords:                      |   Difficulty:  normal
Ghcversion:  6.9                 |     Platform:        
---------------------------------+------------------------------------------
Changes (by duncan):

  * priority:  normal => high
  * summary:  cabal install hangs using CPU when resolving dependencies on
              ghc 6.9.20080907 => cabal install hangs using
              CPU when resolving dependencies on ghc 6.9

Comment:

 We need to fix this one. Unfortunately it's a lot harder than just
 resolving this infinite loop. Just fixing that would give us the result
 that instead of looping it'd fail to find a solution, more or less every
 time. That's because the current resolver is looking for a solution that
 uses each package at most once and the base 3 - 4 thing breaks that
 assumption.

-- 
Ticket URL: <http://hackage.haskell.org/trac/hackage/ticket/349#comment:2>
Hackage <http://haskell.org/cabal/>
Hackage: Cabal and related projects