#12230: Non-deterministic ghc-iserv terminated error -------------------------------------+------------------------------------- Reporter: ezyang | Owner: simonmar Type: bug | Status: new Priority: highest | Milestone: 8.2.1 Component: GHCi | Version: 8.1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by simonmar): ugh. `ghc-iserv terminated (-11)` means that the ghc-iserv process died with a segfault. I'm not seeing this here, even with a large number of threads. But concurrency in the test suite shouldn't really affect it, because GHC itself and ghc-iserv are both still single-threaded. Is there anything unusual about your platform or setup that might give us a clue? You should have a core dump from `ghc-iserv`. Can you load it up in gdb and see what the stack trace is? You can also try `-opti-v` to get debug output about the messages being exchanged by GHC and ghc-iserv, but this probably won't help much if the problem is non-deterministic. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/12230#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler