[Haskell-cafe] Where is the documentation on exception types kept?

[timothyhobbs at seznam.cz]

Hello,
I am trying to catch an "thread blocked on MVar indefinitely exception."  Of
course I can use ::SomeException as explained in http://hackage.haskell.org/
packages/archive/base/latest/doc/html/Control-Exception.html#g:3 but there 
is no explanation as to how to find the more case specific exceptions.  
http://hackage.haskell.org/packages/archive/base/latest/doc/html/Control-
Concurrent-MVar.html#t:MVar does not discuss exceptions at all!  Indeed, I 
don't know of any haddock pages that include descriptions of exception types
:( :O

Thanks,
Timothy
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