#1520: Use Linux's signalfd() instead of pipe() to deliver signals to the IO manager -----------------------------+---------------------------------------------- Reporter: simonmar | Owner: Type: task | Status: closed Priority: lowest | Milestone: 7.6.2 Component: Runtime System | Version: 6.6.1 Resolution: wontfix | Keywords: Os: Linux | Architecture: Unknown/Multiple Failure: None/Unknown | Difficulty: Moderate (less than a day) Testcase: | Blockedby: Blocking: | Related: -----------------------------+---------------------------------------------- Changes (by simonmar): * status: new => closed * resolution: => wontfix Comment: No, the new IO manager does it the same way as the old one. We did discuss it, and unfortunately `signalfd()` is not suitable, because it requires the signals to be masked, and there's no good way to ensure that happens across all threads in the program (what if some threads are in C and not managed by us?). `sigwaitinfo()` suffers from the same problem. So I think this is a wontfix. -- Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/1520#comment:13 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler