[GHC] #10484: hPutBuf crashes when trying to write a large string to stdout (resource exhausted)

4 Jun 2015

      #10484: hPutBuf crashes when trying to write a large string to stdout (resource
exhausted)
-------------------------------------+-------------------------------------
              Reporter:  bayloff     |             Owner:
                  Type:  bug         |            Status:  new
              Priority:  normal      |         Milestone:
             Component:              |           Version:  7.8.3
  libraries/base                     |  Operating System:  Windows
              Keywords:              |   Type of failure:  Runtime crash
          Architecture:              |        Blocked By:
  Unknown/Multiple                   |   Related Tickets:
             Test Case:              |
              Blocking:              |
Differential Revisions:              |
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 The following program crashes when I try to write a byte string larger
 than 61kb to stdout:

 {{{#!hs
 import qualified Data.ByteString.Char8 as BS

 main = BS.putStrLn $ BS.replicate (62 * 1024) 'x'
 }}}

 When I run the above, I get the following runtime error:
 {{{
 <stdout>: hPutBuf: resource exhausted (Not enough space)
 }}}

 GHC versions tested: 7.6.3 and 7.8.3 (both 32 and 64 bit)
 OS: Windows 7 and Windows Server 20008R2

 The issue is not reproducible with the Linux version of GHC. It is also
 not reproducible if I use the Lazy variant of the byte strings.

 Note: The Linux version of the program was tested with GHC 7.6.3 because
 this is the one I have on my Ubuntu machine.

--
Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/10484
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