#16067: Profiled GHCi segfaults under Windows. ----------------------------------------+------------------------------- Reporter: AndreasK | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: Component: Runtime System | Version: 8.7 Keywords: | Operating System: Windows Architecture: Unknown/Multiple | Type of failure: GHCi crash Test Case: | Blocked By: Blocking: | Related Tickets: Differential Rev(s): | Wiki Page: ----------------------------------------+------------------------------- Building ghc with the prof flavour and trying to run ghci segfaults on master. {{{ C:\ghc\msys64\home\Andi\ghc_head\inplace\bin\ghc-stage2.exe --interactive GHCi, version 8.7.20181218: https://www.haskell.org/ghc/ :? for help Access violation in generated code when reading 0xffffffffffffffff Attempting to reconstruct a stack trace... Frame Code address * 0x67cd990 0x4d6634c C:\ghc\msys64\home\Andi\ghc_head\inplace\bin \ghc-stage2.exe+0x496634c * 0x67cd9f0 0x4d51848 C:\ghc\msys64\home\Andi\ghc_head\inplace\bin \ghc-stage2.exe+0x4951848 * 0x67cda50 0x4d5192f C:\ghc\msys64\home\Andi\ghc_head\inplace\bin \ghc-stage2.exe+0x495192f * 0x67cda80 0x4d678a1 C:\ghc\msys64\home\Andi\ghc_head\inplace\bin \ghc-stage2.exe+0x49678a1 * 0x67cda88 0x4c5fe64 C:\ghc\msys64\home\Andi\ghc_head\inplace\bin \ghc-stage2.exe+0x485fe64 * 0x67cda90 0x1083d0 * 0x67cda98 0x88e5020 * 0x67cdaa0 0x88e36a1 * 0x67cdaa8 0x2000000 C:\ghc\msys64\home\Andi\ghc_head\inplace\bin \ghc-stage2.exe+0x1c00000 }}} Just starting it in gdb tells me this is happening in registerCcsList in the RTS. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/16067 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler