#7684: cgrun071 segfaults ----------------------------------+---------------------------------- Reporter: tibbe | Owner: Type: bug | Status: new Priority: normal | Milestone: 7.8.1 Component: Compiler | Version: 7.7 Resolution: | Keywords: Operating System: MacOS X | Architecture: x86_64 (amd64) Type of failure: Runtime crash | Difficulty: Unknown Test Case: cgrun071 | Blocked By: Blocking: | Related Tickets: ----------------------------------+---------------------------------- Comment (by leroux): Here's the disassembly and the backtrace so that you can find the caller. [https://dl.dropboxusercontent.com/u/21651328/cgrun071-gcc42-fails.S cgrun071 disassembly] (Can't attach it here because it's ~20MB) {{{ (gdb) bt #0 0x000000010027f74b in hs_popcnt8 () #1 0x000000010000475a in c1gz_info () Previous frame inner to this frame (gdb could not unwind past this frame) }}} Hope that helps. Also, I probably should have included this in my last comment. {{{ (gdb) run Starting program: /Users/leroux/Dropbox/src/ghc/ghc- validate/testsuite/tests/codeGen/should_run/cgrun071 Reading symbols for shared libraries +++.............................. done OK Program received signal EXC_BAD_ACCESS, Could not access memory. Reason: 13 at address: 0x0000000000000000 0x000000010027f74b in hs_popcnt8 () }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/7684#comment:31 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler