#12865: POSIX osDecommitMemory has nasty compatibility problems -------------------------------------+------------------------------------- Reporter: bgamari | Owner: Type: bug | Status: new Priority: high | Milestone: 8.2.1 Component: Runtime System | Version: 8.0.1 Resolution: | Keywords: Operating System: Linux | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by bgamari): One approach to fixing this would be to instead do something like this, {{{#!c int r = 1; #ifdef MADV_FREE // Try MADV_FREE first, FreeBSD has both and MADV_DONTNEED // just swaps memory out r = madvise(at, size, MADV_FREE); #endif #ifdef MADV_DONTNEED if (r != 0) r = madvise(at, size, MADV_DONTNEED); #endif if(r < 0) sysErrorBelch("unable to decommit memory"); }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/12865#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler