id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	os	architecture	failure	difficulty	testcase	blockedby	blocking	related
5544	threadDelay with large values crashes the IO manager on 64-bit OS X	carlhowells		"{{{
  System Version:	Mac OS X 10.6.8 (10K540)
  Kernel Version:	Darwin 10.8.0
}}}
{{{
$ ghc --version
The Glorious Glasgow Haskell Compilation System, version 7.2.1
}}}
{{{
import Control.Concurrent

main :: IO ()
main = threadDelay $ 100000001000084 + 100
}}}
{{{
$ ghc -threaded --make -fforce-recomp iocrash.hs && ./iocrash
[1 of 1] Compiling Main             ( iocrash.hs, iocrash.o )
Linking iocrash ...
iocrash: kevent: invalid argument (Invalid argument)
iocrash: ioManagerWakeup: write: Bad file descriptor
iocrash: sendWakeup: invalid argument (Bad file descriptor)
iocrash: ioManagerDie: write: Bad file descriptor
}}}

This isn't fully deterministic.  Removing the ""+ 100"" results in the crash happening only some of the time on my system."	bug	closed	high	7.4.3	Runtime System	7.2.1	duplicate		carlhowells johan.tibell@… anton.nik@…	MacOS X	x86_64 (amd64)	None/Unknown	Unknown