Bug #9717: [BUG] setup_arg: unknown node: NODE_DVAR

• Status: Closed
• Assignee: -
• Target version: -
• ruby -v: ruby 2.2.0dev (2014-04-09 trunk 45540) [x86_64-linux]
• Backport: 2.0.0: DONTNEED, 2.1: DONE

[akr (Akira Tanaka)]

以下のようにすると、[BUG] setup_arg: unknown node: NODE_DVAR というメッセージが出て異常終了します。

% ./miniruby -e 'GC.stress = true; eval("foo += bar")'
-e:1: [BUG] setup_arg: unknown node: NODE_DVAR

ruby 2.2.0dev (2014-04-09 trunk 45540) [x86_64-linux]

-- Control frame information -----------------------------------------------
c:0003 p:---- s:0008 e:000007 CFUNC  :eval
c:0002 p:0021 s:0004 E:0006e8 EVAL   -e:1 [FINISH]
c:0001 p:0000 s:0002 E:000ed8 TOP    [FINISH]

-- Ruby level backtrace information ----------------------------------------
-e:1:in `<main>'
-e:1:in `eval'

-- C level backtrace information -------------------------------------------
-e:1: [BUG] Segmentation fault at 0x00000000000041
ruby 2.2.0dev (2014-04-09 trunk 45540) [x86_64-linux]

-- Control frame information -----------------------------------------------
c:0003 p:---- s:0008 e:000007 CFUNC  :eval
c:0002 p:0021 s:0004 E:0006e8 EVAL   -e:1 [FINISH]
c:0001 p:0000 s:0002 E:000ed8 TOP    [FINISH]

-- Ruby level backtrace information ----------------------------------------
-e:1:in `<main>'
-e:1:in `eval'

-- C level backtrace information -------------------------------------------
/home/akr/tst1/ruby/miniruby(rb_print_backtrace+0x19) [0x7f8fa358cd0a] vm_dump.c:685
/home/akr/tst1/ruby/miniruby(rb_vm_bugreport+0x93) [0x7f8fa358cdb3] vm_dump.c:824
/home/akr/tst1/ruby/miniruby(report_bug+0x18d) [0x7f8fa341e4c2] error.c:312
/home/akr/tst1/ruby/miniruby(rb_bug+0xdf) [0x7f8fa341e63c] error.c:339
/home/akr/tst1/ruby/miniruby(sigsegv+0x86) [0x7f8fa34ff9ad] signal.c:731
/lib/x86_64-linux-gnu/libpthread.so.0 [0x7f8fa2f88880]
/home/akr/tst1/ruby/miniruby(rb_dump_backtrace_with_lines+0x164) [0x7f8fa35a3eeb] addr2line.c:672
/home/akr/tst1/ruby/miniruby(rb_print_backtrace+0x2d) [0x7f8fa358cd1e] vm_dump.c:687
/home/akr/tst1/ruby/miniruby(rb_vm_bugreport+0x93) [0x7f8fa358cdb3] vm_dump.c:824
/home/akr/tst1/ruby/miniruby(report_bug+0x18d) [0x7f8fa341e4c2] error.c:312
/home/akr/tst1/ruby/miniruby(rb_bug+0xdf) [0x7f8fa341e63c] error.c:339
/home/akr/tst1/ruby/miniruby(setup_args+0x3c1) [0x7f8fa3559a2f] compile.c:3149
/home/akr/tst1/ruby/miniruby(iseq_compile_each+0x66fc) [0x7f8fa35602f2] compile.c:4444
/home/akr/tst1/ruby/miniruby(iseq_compile_each+0x3ffe) [0x7f8fa355dbf4] compile.c:3918
/home/akr/tst1/ruby/miniruby(rb_iseq_compile_node+0x4bb) [0x7f8fa3553182] compile.c:507
/home/akr/tst1/ruby/miniruby(rb_iseq_new_with_bopt_and_opt+0x9c) [0x7f8fa3569c98] iseq.c:449
/home/akr/tst1/ruby/miniruby(rb_iseq_new_with_opt+0x58) [0x7f8fa3569d02] iseq.c:460
/home/akr/tst1/ruby/miniruby(rb_iseq_compile_with_option+0x27a) [0x7f8fa356a809] iseq.c:618
/home/akr/tst1/ruby/miniruby(eval_string_with_cref+0x3f7) [0x7f8fa3583c60] vm_eval.c:1263
/home/akr/tst1/ruby/miniruby(eval_string+0x42) [0x7f8fa35843b8] vm_eval.c:1329
/home/akr/tst1/ruby/miniruby(rb_f_eval+0xc8) [0x7f8fa3584482] vm_eval.c:1368
/home/akr/tst1/ruby/miniruby(call_cfunc_m1+0x2f) [0x7f8fa3572edd] vm_insnhelper.c:1330
/home/akr/tst1/ruby/miniruby(vm_call_cfunc_with_frame+0x216) [0x7f8fa3573a8c] vm_insnhelper.c:1502
/home/akr/tst1/ruby/miniruby(vm_call_cfunc+0x2b) [0x7f8fa3573b99] vm_insnhelper.c:1592
/home/akr/tst1/ruby/miniruby(vm_call_method+0x113) [0x7f8fa35746ae] vm_insnhelper.c:1786
/home/akr/tst1/ruby/miniruby(vm_call_general+0x2b) [0x7f8fa3574f1f] vm_insnhelper.c:1941
/home/akr/tst1/ruby/miniruby(vm_exec_core+0x27cd) [0x7f8fa35787da] insns.def:1028
/home/akr/tst1/ruby/miniruby(vm_exec+0xe7) [0x7f8fa35887bb] vm.c:1328
/home/akr/tst1/ruby/miniruby(rb_iseq_eval_main+0x34) [0x7f8fa3589730] vm.c:1586
/home/akr/tst1/ruby/miniruby(ruby_exec_internal+0x134) [0x7f8fa34244f2] eval.c:251
/home/akr/tst1/ruby/miniruby(ruby_exec_node+0x24) [0x7f8fa342461b] eval.c:316
/home/akr/tst1/ruby/miniruby(ruby_run_node+0x3e) [0x7f8fa34245ee] eval.c:308
/home/akr/tst1/ruby/miniruby(main+0x71) [0x7f8fa33d9586] main.c:36
*** Error in `./miniruby': double free or corruption (out): 0x00007f8fa55e00c0 ***
zsh: segmentation fault  ./miniruby -e 'GC.stress = true; eval("foo += bar")'
% 

[akr (Akira Tanaka)]

• Description updated (diff)

[akr (Akira Tanaka)]

• Status changed from Open to Closed
• % Done changed from 0 to 100

Applied in changeset r45542.

---

• gc.c (mark_current_machine_context): Call SET_STACK_END.
  This reverts a hunk of r40703 by ko1.
  This fixes [ruby-dev:48098] [Bug #9717].

[usa (Usaku NAKAMURA)]

• Backport changed from 2.0.0: UNKNOWN, 2.1: UNKNOWN to 2.0.0: DONTNEED, 2.1: REQUIRED

[nagachika (Tomoyuki Chikanaga)]

• Backport changed from 2.0.0: DONTNEED, 2.1: REQUIRED to 2.0.0: DONTNEED, 2.1: DONE

r45542 and r45543 were backported into ruby_2_1 branch at r47229.