#13576: Runtime crashes on arm64 (iOS) ----------------------------------+------------------------------- Reporter: jp.rider63 | Owner: (none) Type: bug | Status: new Priority: high | Milestone: 8.4.1 Component: Compiler | Version: Resolution: | Keywords: Operating System: MacOS X | Architecture: aarch64 Type of failure: Runtime crash | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | ----------------------------------+------------------------------- Comment (by angerman): Does this happen when applying https://phabricator.haskell.org/D3290 prior to building the cross compiler, as well? {{{ 82 static void 83 checkClosureShallow( const StgClosure* p ) 84 { 85 const StgClosure *q; 86 87 q = UNTAG_CONST_CLOSURE(p); 88 ASSERT(LOOKS_LIKE_CLOSURE_PTR(q)); 89 } 90 }}} The crash indicates that q doesn't look like a closure. One of the cases where this happens is `-dead_strip`. However as noted in the ticket, dead_strip is disabled. This is basically a shot in the dark, e.g. if the addition of dead_strip prevention markers retains the symbol. could you try to see if `nm` lists different symbols for the crashing and the not crashing binary? `nm -j` should list the symbols without the address. `sort` should straighten them and `diff` could potentially be helpful. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/13576#comment:2 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler