[GHC] #7815: STM fails to validate read.

[GHC]

#7815: STM fails to validate read.
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    Reporter:  fryguybob       |       Owner:  igloo                      
        Type:  bug             |      Status:  patch                      
    Priority:  normal          |   Milestone:  7.8.1                      
   Component:  Runtime System  |     Version:  7.7                        
    Keywords:  STM             |          Os:  Unknown/Multiple           
Architecture:  x86             |     Failure:  Incorrect result at runtime
  Difficulty:  Unknown         |    Testcase:                             
   Blockedby:                  |    Blocking:                             
     Related:                  |  
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Comment(by ryates@…):

 commit 87baa31cb117181ab4f4b26387653996d1792167
 {{{
 Author: Ryan Yates <ryates at cs.rochester.edu>
 Date:   Mon Apr 8 19:18:51 2013 -0400

     Check to see if TVar's are locked in check_read_only (fixes #7815)

  rts/STM.c |    8 ++++++--
  1 files changed, 6 insertions(+), 2 deletions(-)
 }}}

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7815#comment:7>
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