[GHC] #10759: don't throw BlockedIndefinitelyOn... in main thread

[GHC]

#10759: don't throw  BlockedIndefinitelyOn... in main thread
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        Reporter:  yokto             |                   Owner:
            Type:  bug               |                  Status:  closed
        Priority:  normal            |               Milestone:
       Component:  Compiler          |                 Version:  7.10.2
      Resolution:  wontfix           |                Keywords:
Operating System:  Unknown/Multiple  |            Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |               Test Case:
      Blocked By:                    |                Blocking:
 Related Tickets:                    |  Differential Revisions:
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Changes (by simonmar):

 * status:  new => closed
 * resolution:   => wontfix


Comment:

 It's a tradeoff - if we made it so that the main thread never got
 `BlockedIndefinitely` exceptions, then we would never catch deadlock or
 infinite loops in the main thread.  There's a workaround for the case
 above:

 {{{
   t <- myThreadId
   newStablePtr t
 }}}

 will make the main thread impervious to `BlockedIndefinitely` exceptions.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10759#comment:2>
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