Re: A bug of multicore IO manager

Hi,

If you need two Ctrl-Cs to kill the program, it probably means that it deadlocked somewhere, maybe in the RTS. Kazu: if you can attach to the deadlocked process with gdb and get stack traces of all the threads, that might help.

To debug with GDB, I complied Mighty with "-debug". This changes the behavior and I got the following error: mighty-20130905: internal error: ASSERTION FAILED: file rts/sm/MarkWeak.c, line 371 (GHC version 7.7.20130901 for i386_unknown_linux) Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug Simon, can you tell what's going on? --Kazu