rubinius

Comments and changes to this ticket

• 

  Tom Mornini January 21st, 2008 @ 07:47 PM

  • → Title changed from “-r profile causes "Attempted to access field of non-reference” to “-r profile causes "Attempted to access field of non-reference"”
• 

  zimbatm January 22nd, 2008 @ 02:32 AM

  • → State changed from “new” to “invalid”

  Please give at least the first 8 digist of the revision when posting.

  I couldn't reproduce it on 91e4b806... Reopen the ticket if you have more details.

• 

  Tom Mornini January 22nd, 2008 @ 10:30 AM

  Interesting: Still broken for me on 9074bc1c

• 

  Tom Mornini January 22nd, 2008 @ 10:45 AM

  Additional details:

  ~/Desktop/rbx: uname -a
  Darwin Tom-Morninis-MacBook-Pro.local 9.1.0 Darwin Kernel Version 9.1.0: Wed Oct 31 17:46:22 PDT 2007; root:xnu-1228.0.2~1/RELEASE_I386 i386
  ~/Desktop/rbx: gcc -v
  Using built-in specs.
  Target: i686-apple-darwin9
  Configured with: /var/tmp/gcc/gcc-5465~16/src/configure --disable-checking -enable-werror --prefix=/usr --mandir=/share/man --enable-languages=c,objc,c++,obj-c++ --program-transform-name=/^[cg][^.-]*$/s/$/-4.0/ --with-gxx-include-dir=/include/c++/4.0.0 --with-slibdir=/usr/lib --build=i686-apple-darwin9 --with-arch=apple --with-tune=generic --host=i686-apple-darwin9 --target=i686-apple-darwin9
  Thread model: posix
  gcc version 4.0.1 (Apple Inc. build 5465)
  

• 

  zimbatm January 23rd, 2008 @ 02:57 AM

  Thanks, I was able to reproduce the error with the same platform and compiler. So this looks OS X (or BSD) specific. It works under linux.

• 

  zimbatm January 23rd, 2008 @ 03:10 AM

  • → State changed from “invalid” to “open”
• 

  zimbatm January 25th, 2008 @ 09:08 AM

  Here is the backtrace when run in gdb :

  Program received signal EXC_BAD_ACCESS, Could not access memory.
  Reason: KERN_PROTECTION_FAILURE at address: 0x0000000e
  0x0018e2b8 in methctx_reference (state=0x8000, ctx=0xe) at methctx.c:111
  111	  if(!stack_context_p(ctx)) return;
  (gdb) bt
  #0  0x0018e2b8 in methctx_reference (state=0x8000, ctx=0xe) at methctx.c:111
  #1  0x0016b758 in _cpu_sampler_record_context (sig=27) at cpu_sample.c:81
  #2  <signal handler called>
  #3  0x90435f5a in select$DARWIN_EXTSN ()
  #4  0x001d7e1c in select_poll () at state.h:332
  #5  0x001d8f6b in ev_loop () at state.h:332
  #6  0x0014d702 in cpu_event_runonce (state=0x8000) at cpu_event.c:75
  #7  0x0016e094 in cpu_thread_run_best (state=0x8000, c=0x3009f0) at cpu_task.c:496
  #8  0x0016dab6 in cpu_thread_exited (state=0x8000, c=0x3009f0) at cpu_task.c:392
  #9  0x0016a183 in cpu_perform_system_primitive (state=0x8000, c=0x3009f0, prim=186, mo=0x3c1f34, num_args=0, method_name=0x1683, mod=0x3152c4, block=0xe) at system_primitives.gen:2512
  #10 0x001515f0 in cpu_perform_primitive (state=0x8000, c=0x3009f0, prim=186, mo=0x3c1f34, args=0, name=0x1683, mod=0x3152c4, block=0xe) at cpu.h:290
  #11 0x0015152e in cpu_try_primitive (state=0x8000, c=0x3009f0, mo=0x3c1f34, recv=0x303214, args=0, sym=0x1683, mod=0x3152c4, block=0xe) at cpu_instructions.c:552
  #12 0x0015210a in _cpu_build_and_activate (state=0x8000, c=0x3009f0, mo=0x3c1f34, recv=0x303214, sym=0x1683, args=0, block=0xe, missing=0, mod=0x3152c4) at cpu_instructions.c:910
  #13 0x00152077 in _inline_cpu_unified_send (state=0x8000, c=0x3009f0, recv=0x303214, sym=0x1683, args=0, block=0xe) at cpu_instructions.c:1074
  #14 0x00155e03 in cpu_run (state=0x8000, c=0x3009f0, setup=0) at instruction_dt.gen:477
  #15 0x00189819 in machine_run (m=0x800000) at machine.c:323
  #16 0x00189926 in machine_run_file (m=0x800000, path=0xbffff782 "/Users/zimbatm/Documents/src/rubinius/runtime/loader.rbc") at machine.c:348
  #17 0x0016f076 in environment_load_machine (e=0x300180, m=0x800000) at environment.c:176
  #18 0x00001e0a in main (argc=3, argv=0xbffff05c) at main.c:98
  

  methctx_reference doesn't like to Qnil as a ctx.

  it only happens when snapshotting for the profiler. bin/ci never triggers this for example..

• 

  Eero Saynatkari January 26th, 2008 @ 02:37 PM

  • → Title changed from “-r profile causes "Attempted to access field of non-reference"” to “[BUG] -r profile causes "Attempted to access field of non-reference" on BSD/Darwin”
• 

  zimbatm January 30th, 2008 @ 12:38 AM

  • → State changed from “open” to “resolved”

  This has been fixed by Evan in 4090c477d1501140dbfe5f4f3250d61b91e2e4cd

  I did the tests in OS X, everything's fine.