#8097: internal error: getMBlock: mmap: Operation not permitted ----------------------------------+------------------------------ Reporter: singpolyma | Owner: Type: bug | Status: infoneeded Priority: normal | Milestone: Component: Compiler | Version: 7.4.2 Resolution: | Keywords: Operating System: Linux | Architecture: x86 Type of failure: Runtime crash | Difficulty: Unknown Test Case: | Blocked By: Blocking: | Related Tickets: ----------------------------------+------------------------------ Comment (by rwbarton): Hmm, interesting. I couldn't reproduce with GHC 7.4.2 on Debian Linux 2.6.32-5-686 (mmap_min_addr = 65536). What kernel version are you running (`uname -a`)? And can you run your program under strace: {{{ strace -e trace=mmap2 -o log ./countUniques }}} and attach the last page or so of `log` to this ticket? I'm 95% sure that in HEAD, you will get an out of memory error rather than this "Operation not permitted" error, but I'd like to understand what's going on here. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/8097#comment:4 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler