Fix a rare deadlock when the IO manager thread is slow to start up This fixes occasional failures of ffi002(threaded1) on a loaded machine.
Fix a rare deadlock when the IO manager thread is slow to start up
This fixes occasional failures of ffi002(threaded1) on a loaded
machine.

bitemyapp/ghc,vikraman/ghc,mcmaniac/ghc,oldmanmike/ghc,gcampax/ghc,da-x/ghc,siddhanathan/ghc,mcschroeder/ghc,snoyberg/ghc,vTurbine/ghc,nkaretnikov/ghc,vikraman/ghc,siddhanathan/ghc,olsner/ghc,christiaanb/ghc,mettekou/ghc,frantisekfarka/ghc-dsi,vikraman/ghc,ghc-android/ghc,AlexanderPankiv/ghc,sdiehl/ghc,lukexi/ghc,tjakway/ghcjvm,mcschroeder/ghc,fmthoma/ghc,wxwxwwxxx/ghc,ryantm/ghc,tjakway/ghcjvm,gridaphobe/ghc,GaloisInc/halvm-ghc,shlevy/ghc,bitemyapp/ghc,bitemyapp/ghc,mettekou/ghc,lukexi/ghc,gridaphobe/ghc,da-x/ghc,wxwxwwxxx/ghc,elieux/ghc,AlexanderPankiv/ghc,gcampax/ghc,oldmanmike/ghc,forked-upstream-packages-for-ghcjs/ghc,vTurbine/ghc,anton-dessiatov/ghc,nathyong/microghc-ghc,oldmanmike/ghc,siddhanathan/ghc,TomMD/ghc,wxwxwwxxx/ghc,nathyong/microghc-ghc,urbanslug/ghc,mcschroeder/ghc,hferreiro/replay,vTurbine/ghc,GaloisInc/halvm-ghc,anton-dessiatov/ghc,nushio3/ghc,shlevy/ghc,lukexi/ghc,hferreiro/replay,TomMD/ghc,siddhanathan/ghc,ekmett/ghc,snoyberg/ghc,ezyang/ghc,olsner/ghc,lukexi/ghc-7.8-arm64,christiaanb/ghc,ezyang/ghc,mettekou/ghc,acowley/ghc,ghc-android/ghc,ilyasergey/GHC-XAppFix,tjakway/ghcjvm,wxwxwwxxx/ghc,spacekitteh/smcghc,tibbe/ghc,spacekitteh/smcghc,sdiehl/ghc,da-x/ghc,nathyong/microghc-ghc,mettekou/ghc,TomMD/ghc,ghc-android/ghc,gridaphobe/ghc,elieux/ghc,tjakway/ghcjvm,urbanslug/ghc,wxwxwwxxx/ghc,frantisekfarka/ghc-dsi,nathyong/microghc-ghc,da-x/ghc,sgillespie/ghc,elieux/ghc,christiaanb/ghc,lukexi/ghc-7.8-arm64,fmthoma/ghc,mfine/ghc,vTurbine/ghc,anton-dessiatov/ghc,mfine/ghc,christiaanb/ghc,nkaretnikov/ghc,vikraman/ghc,gridaphobe/ghc,mcschroeder/ghc,ml9951/ghc,nathyong/microghc-ghc,mfine/ghc,tjakway/ghcjvm,ilyasergey/GHC-XAppFix,green-haskell/ghc,siddhanathan/ghc,gcampax/ghc,nushio3/ghc,ekmett/ghc,holzensp/ghc,vikraman/ghc,ekmett/ghc,shlevy/ghc,nushio3/ghc,sgillespie/ghc,ml9951/ghc,bitemyapp/ghc,ilyasergey/GHC-XAppFix,ezyang/ghc,sgillespie/ghc,olsner/ghc,fmthoma/ghc,ml9951/ghc,ekmett/ghc,da-x/ghc,vTurbine/ghc,mettekou/ghc,gcampax/ghc,oldmanmike/ghc,nomeata/ghc,snoyberg/ghc,vTurbine/ghc,elieux/ghc,GaloisInc/halvm-ghc,urbanslug/ghc,forked-upstream-packages-for-ghcjs/ghc,jstolarek/ghc,nushio3/ghc,sgillespie/ghc,ekmett/ghc,jstolarek/ghc,GaloisInc/halvm-ghc,ghc-android/ghc,ml9951/ghc,elieux/ghc,TomMD/ghc,ezyang/ghc,ml9951/ghc,shlevy/ghc,holzensp/ghc,sdiehl/ghc,ezyang/ghc,TomMD/ghc,christiaanb/ghc,anton-dessiatov/ghc,ilyasergey/GHC-XAppFix,snoyberg/ghc,AlexanderPankiv/ghc,nkaretnikov/ghc,hferreiro/replay,green-haskell/ghc,gridaphobe/ghc,anton-dessiatov/ghc,nkaretnikov/ghc,AlexanderPankiv/ghc,nushio3/ghc,siddhanathan/ghc,wxwxwwxxx/ghc,green-haskell/ghc,hferreiro/replay,fmthoma/ghc,mfine/ghc,olsner/ghc,da-x/ghc,AlexanderPankiv/ghc,sdiehl/ghc,ryantm/ghc,AlexanderPankiv/ghc,GaloisInc/halvm-ghc,mcmaniac/ghc,nomeata/ghc,holzensp/ghc,gcampax/ghc,gridaphobe/ghc,GaloisInc/halvm-ghc,hferreiro/replay,ghc-android/ghc,forked-upstream-packages-for-ghcjs/ghc,urbanslug/ghc,mcmaniac/ghc,shlevy/ghc,ryantm/ghc,sdiehl/ghc,ml9951/ghc,ezyang/ghc,mettekou/ghc,AlexanderPankiv/ghc,frantisekfarka/ghc-dsi,christiaanb/ghc,ryantm/ghc,sdiehl/ghc,acowley/ghc,nomeata/ghc,ezyang/ghc,nomeata/ghc,tjakway/ghcjvm,nushio3/ghc,nkaretnikov/ghc,nkaretnikov/ghc,frantisekfarka/ghc-dsi,nushio3/ghc,hferreiro/replay,wxwxwwxxx/ghc,holzensp/ghc,vikraman/ghc,mcschroeder/ghc,olsner/ghc,GaloisInc/halvm-ghc,lukexi/ghc-7.8-arm64,frantisekfarka/ghc-dsi,holzensp/ghc,nomeata/ghc,acowley/ghc,nathyong/microghc-ghc,ml9951/ghc,urbanslug/ghc,green-haskell/ghc,acowley/ghc,TomMD/ghc,mcschroeder/ghc,forked-upstream-packages-for-ghcjs/ghc,jstolarek/ghc,oldmanmike/ghc,gcampax/ghc,mcmaniac/ghc,snoyberg/ghc,mcmaniac/ghc,spacekitteh/smcghc,mettekou/ghc,tibbe/ghc,mfine/ghc,sgillespie/ghc,jstolarek/ghc,mfine/ghc,nathyong/microghc-ghc,fmthoma/ghc,mfine/ghc,urbanslug/ghc,sgillespie/ghc,forked-upstream-packages-for-ghcjs/ghc,gridaphobe/ghc,lukexi/ghc,elieux/ghc,lukexi/ghc-7.8-arm64,fmthoma/ghc,forked-upstream-packages-for-ghcjs/ghc,shlevy/ghc,spacekitteh/smcghc,gcampax/ghc,acowley/ghc,ghc-android/ghc,TomMD/ghc,ghc-android/ghc,tjakway/ghcjvm,acowley/ghc,lukexi/ghc,snoyberg/ghc,spacekitteh/smcghc,tibbe/ghc,mcschroeder/ghc,fmthoma/ghc,snoyberg/ghc,oldmanmike/ghc,elieux/ghc,green-haskell/ghc,tibbe/ghc,lukexi/ghc-7.8-arm64,forked-upstream-packages-for-ghcjs/ghc,nkaretnikov/ghc,vikraman/ghc,oldmanmike/ghc,urbanslug/ghc,sgillespie/ghc,da-x/ghc,anton-dessiatov/ghc,jstolarek/ghc,vTurbine/ghc,hferreiro/replay,christiaanb/ghc,ryantm/ghc,shlevy/ghc,olsner/ghc,sdiehl/ghc,anton-dessiatov/ghc,acowley/ghc,bitemyapp/ghc,olsner/ghc,tibbe/ghc,ml9951/ghc,siddhanathan/ghc