Bug #10545: SEGV: def m(A: a) end

• Status: Closed
• Priority: Normal
• Assignee: -
• Target version: -
• ruby -v: ruby 2.2.0dev (2014-11-26 trunk 48578) [x86_64-linux]
• Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN

[akr (Akira Tanaka)]

def m(A: a) end とすると SEGV するようです。

% ./ruby -e 'def m(A: a) end'    
-e:1: formal argument must be local variable
def m(A: a) end
        ^
-e:1: dynamic constant assignment
def m(A: a) end
           ^
./ruby: [BUG] Segmentation fault at 0x00000000000018
ruby 2.2.0dev (2014-11-26 trunk 48578) [x86_64-linux]

-- Control frame information -----------------------------------------------
c:0001 p:0000 s:0002 E:000440 TOP    [FINISH]


-- Machine register context ------------------------------------------------
 RIP: 0x00007f027ffa1830 RBP: 0x00007fff30389f10 RSP: 0x00007fff30389e90
 RAX: 0x0000000000000000 RBX: 0x00007fff3038bf50 RCX: 0x00007f0281fd4200
 RDX: 0x0000000000000000 RDI: 0x00007f0281bcca20 RSI: 0x00007f0281fd4200
  R8: 0x0000000000000001  R9: 0x00007f0281fccd10 R10: 0x00007fff30389ad0
 R11: 0x0000000000000000 R12: 0x00007f027fdec950 R13: 0x00007fff3038c090
 R14: 0x0000000000000000 R15: 0x0000000000000000 EFL: 0x0000000000010206

-- C level backtrace information -------------------------------------------
/home/ruby/tst1/ruby/ruby(rb_print_backtrace+0x19) [0x7f027ff25d91] vm_dump.c:693
/home/ruby/tst1/ruby/ruby(rb_vm_bugreport+0xa9) [0x7f027ff26206] vm_dump.c:971
/home/ruby/tst1/ruby/ruby(rb_bug_context+0x113) [0x7f027ff82d6e] error.c:389
/home/ruby/tst1/ruby/ruby(sigsegv+0x5e) [0x7f027fead435] signal.c:849
/lib/x86_64-linux-gnu/libpthread.so.0 [0x7f027f99a8d0]
/home/ruby/tst1/ruby/ruby(new_args_tail_gen+0xb0) [0x7f027ffa1830] parse.y:9718
/home/ruby/tst1/ruby/ruby(ruby_yyparse+0x8fde) [0x7f027ff93b4e] parse.y:4522
/home/ruby/tst1/ruby/ruby(yycompile0+0x189) [0x7f027ff95fb8] parse.y:5489
/home/ruby/tst1/ruby/ruby(rb_suppress_tracing+0x18b) [0x7f027ff2a2a3] vm_trace.c:402
/home/ruby/tst1/ruby/ruby(yycompile+0x7e) [0x7f027ff9616b] parse.y:5522
/home/ruby/tst1/ruby/ruby(parser_compile_string+0xc5) [0x7f027ff96474] parse.y:5590
/home/ruby/tst1/ruby/ruby(rb_parser_compile_string_path+0x3a) [0x7f027ff96554] parse.y:5613
/home/ruby/tst1/ruby/ruby(rb_parser_compile_string+0x39) [0x7f027ff96518] parse.y:5606
./ruby [0x7f027feaa41a]
/home/ruby/tst1/ruby/ruby(ruby_process_options+0xb7) [0x7f027feabc32] ruby.c:1930
/home/ruby/tst1/ruby/ruby(ruby_options+0x11f) [0x7f027fdee499] eval.c:100
/home/ruby/tst1/ruby/ruby(main+0x69) [0x7f027fdecae9] main.c:36

-- Other runtime information -----------------------------------------------

* Loaded script: ./ruby

* Loaded features:

    0 enumerator.so
    1 rational.so
    2 complex.so
    3 /home/ruby/tst1/lib/ruby/2.2.0/x86_64-linux/enc/encdb.so
    4 /home/ruby/tst1/lib/ruby/2.2.0/x86_64-linux/enc/trans/transdb.so
    5 /home/ruby/tst1/lib/ruby/2.2.0/unicode_normalize.rb
    6 /home/ruby/tst1/lib/ruby/2.2.0/x86_64-linux/rbconfig.rb
    7 thread.rb
    8 /home/ruby/tst1/lib/ruby/2.2.0/x86_64-linux/thread.so
    9 /home/ruby/tst1/lib/ruby/2.2.0/rubygems/compatibility.rb
   10 /home/ruby/tst1/lib/ruby/2.2.0/rubygems/defaults.rb
   11 /home/ruby/tst1/lib/ruby/2.2.0/rubygems/deprecate.rb
   12 /home/ruby/tst1/lib/ruby/2.2.0/rubygems/errors.rb
   13 /home/ruby/tst1/lib/ruby/2.2.0/rubygems/version.rb
   14 /home/ruby/tst1/lib/ruby/2.2.0/rubygems/requirement.rb
   15 /home/ruby/tst1/lib/ruby/2.2.0/rubygems/platform.rb
   16 /home/ruby/tst1/lib/ruby/2.2.0/rubygems/basic_specification.rb
   17 /home/ruby/tst1/lib/ruby/2.2.0/rubygems/stub_specification.rb
   18 /home/ruby/tst1/lib/ruby/2.2.0/rubygems/util/stringio.rb
   19 /home/ruby/tst1/lib/ruby/2.2.0/rubygems/specification.rb
   20 /home/ruby/tst1/lib/ruby/2.2.0/rubygems/exceptions.rb
   21 /home/ruby/tst1/lib/ruby/2.2.0/rubygems/core_ext/kernel_gem.rb
   22 /home/ruby/tst1/lib/ruby/2.2.0/monitor.rb
   23 /home/ruby/tst1/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb
   24 /home/ruby/tst1/lib/ruby/2.2.0/rubygems.rb

* Process memory map:

7f027dbe9000-7f027dd90000 r--s 00000000 08:01 11804384                   /lib/x86_64-linux-gnu/libc-2.19.so
7f027dd90000-7f027e302000 r--s 00000000 08:01 15073377                   /home/ruby/tst1/ruby/ruby
7f027e302000-7f027e318000 r-xp 00000000 08:01 11796586                   /lib/x86_64-linux-gnu/libgcc_s.so.1
7f027e318000-7f027e517000 ---p 00016000 08:01 11796586                   /lib/x86_64-linux-gnu/libgcc_s.so.1
7f027e517000-7f027e518000 rw-p 00015000 08:01 11796586                   /lib/x86_64-linux-gnu/libgcc_s.so.1
7f027e518000-7f027e51b000 r-xp 00000000 08:01 15859747                   /home/ruby/tst1/lib/ruby/2.2.0/x86_64-linux/thread.so
7f027e51b000-7f027e71b000 ---p 00003000 08:01 15859747                   /home/ruby/tst1/lib/ruby/2.2.0/x86_64-linux/thread.so
7f027e71b000-7f027e71c000 rw-p 00003000 08:01 15859747                   /home/ruby/tst1/lib/ruby/2.2.0/x86_64-linux/thread.so
7f027e71c000-7f027e71e000 r-xp 00000000 08:01 15859769                   /home/ruby/tst1/lib/ruby/2.2.0/x86_64-linux/enc/trans/transdb.so
7f027e71e000-7f027e91e000 ---p 00002000 08:01 15859769                   /home/ruby/tst1/lib/ruby/2.2.0/x86_64-linux/enc/trans/transdb.so
7f027e91e000-7f027e91f000 rw-p 00002000 08:01 15859769                   /home/ruby/tst1/lib/ruby/2.2.0/x86_64-linux/enc/trans/transdb.so
7f027e91f000-7f027e921000 r-xp 00000000 08:01 15859801                   /home/ruby/tst1/lib/ruby/2.2.0/x86_64-linux/enc/encdb.so
7f027e921000-7f027eb21000 ---p 00002000 08:01 15859801                   /home/ruby/tst1/lib/ruby/2.2.0/x86_64-linux/enc/encdb.so
7f027eb21000-7f027eb22000 rw-p 00002000 08:01 15859801                   /home/ruby/tst1/lib/ruby/2.2.0/x86_64-linux/enc/encdb.so
7f027eb22000-7f027ec23000 rw-p 00000000 00:00 0 
7f027ec23000-7f027edc2000 r-xp 00000000 08:01 11804384                   /lib/x86_64-linux-gnu/libc-2.19.so
7f027edc2000-7f027efc2000 ---p 0019f000 08:01 11804384                   /lib/x86_64-linux-gnu/libc-2.19.so
7f027efc2000-7f027efc6000 r--p 0019f000 08:01 11804384                   /lib/x86_64-linux-gnu/libc-2.19.so
7f027efc6000-7f027efc8000 rw-p 001a3000 08:01 11804384                   /lib/x86_64-linux-gnu/libc-2.19.so
7f027efc8000-7f027efcc000 rw-p 00000000 00:00 0 
7f027efcc000-7f027f0cc000 r-xp 00000000 08:01 11804388                   /lib/x86_64-linux-gnu/libm-2.19.so
7f027f0cc000-7f027f2cb000 ---p 00100000 08:01 11804388                   /lib/x86_64-linux-gnu/libm-2.19.so
7f027f2cb000-7f027f2cc000 r--p 000ff000 08:01 11804388                   /lib/x86_64-linux-gnu/libm-2.19.so
7f027f2cc000-7f027f2cd000 rw-p 00100000 08:01 11804388                   /lib/x86_64-linux-gnu/libm-2.19.so
7f027f2cd000-7f027f2d5000 r-xp 00000000 08:01 11804386                   /lib/x86_64-linux-gnu/libcrypt-2.19.so
7f027f2d5000-7f027f4d4000 ---p 00008000 08:01 11804386                   /lib/x86_64-linux-gnu/libcrypt-2.19.so
7f027f4d4000-7f027f4d5000 r--p 00007000 08:01 11804386                   /lib/x86_64-linux-gnu/libcrypt-2.19.so
7f027f4d5000-7f027f4d6000 rw-p 00008000 08:01 11804386                   /lib/x86_64-linux-gnu/libcrypt-2.19.so
7f027f4d6000-7f027f504000 rw-p 00000000 00:00 0 
7f027f504000-7f027f507000 r-xp 00000000 08:01 11804387                   /lib/x86_64-linux-gnu/libdl-2.19.so
7f027f507000-7f027f706000 ---p 00003000 08:01 11804387                   /lib/x86_64-linux-gnu/libdl-2.19.so
7f027f706000-7f027f707000 r--p 00002000 08:01 11804387                   /lib/x86_64-linux-gnu/libdl-2.19.so
7f027f707000-7f027f708000 rw-p 00003000 08:01 11804387                   /lib/x86_64-linux-gnu/libdl-2.19.so
7f027f708000-7f027f789000 r-xp 00000000 08:01 16780134                   /usr/lib/x86_64-linux-gnu/libgmp.so.10.2.0
7f027f789000-7f027f989000 ---p 00081000 08:01 16780134                   /usr/lib/x86_64-linux-gnu/libgmp.so.10.2.0
7f027f989000-7f027f98a000 r--p 00081000 08:01 16780134                   /usr/lib/x86_64-linux-gnu/libgmp.so.10.2.0
7f027f98a000-7f027f98b000 rw-p 00082000 08:01 16780134                   /usr/lib/x86_64-linux-gnu/libgmp.so.10.2.0
7f027f98b000-7f027f9a3000 r-xp 00000000 08:01 11804379                   /lib/x86_64-linux-gnu/libpthread-2.19.so
7f027f9a3000-7f027fba2000 ---p 00018000 08:01 11804379                   /lib/x86_64-linux-gnu/libpthread-2.19.so
7f027fba2000-7f027fba3000 r--p 00017000 08:01 11804379                   /lib/x86_64-linux-gnu/libpthread-2.19.so
7f027fba3000-7f027fba4000 rw-p 00018000 08:01 11804379                   /lib/x86_64-linux-gnu/libpthread-2.19.so
7f027fba4000-7f027fba8000 rw-p 00000000 00:00 0 
7f027fba8000-7f027fbc8000 r-xp 00000000 08:01 11804381                   /lib/x86_64-linux-gnu/ld-2.19.so
7f027fbd8000-7f027fc7c000 r--s 00000000 08:01 16912861                   /usr/lib/debug/lib/x86_64-linux-gnu/libpthread-2.19.so
7f027fc7c000-7f027fc9e000 r--s 00000000 08:01 11804379                   /lib/x86_64-linux-gnu/libpthread-2.19.so
7f027fc9e000-7f027fda6000 r--p 00000000 08:01 16783711                   /usr/lib/locale/locale-archive
7f027fda6000-7f027fdab000 rw-p 00000000 00:00 0 
7f027fdc1000-7f027fdc2000 rw-p 00000000 00:00 0 
7f027fdc2000-7f027fdc3000 ---p 00000000 00:00 0 
7f027fdc3000-7f027fdc8000 rw-p 00000000 00:00 0                          [stack:11510]
7f027fdc8000-7f027fdc9000 r--p 00020000 08:01 11804381                   /lib/x86_64-linux-gnu/ld-2.19.so
7f027fdc9000-7f027fdca000 rw-p 00021000 08:01 11804381                   /lib/x86_64-linux-gnu/ld-2.19.so
7f027fdca000-7f027fdcb000 rw-p 00000000 00:00 0 
7f027fdcb000-7f0280082000 r-xp 00000000 08:01 15073377                   /home/ruby/tst1/ruby/ruby
7f0280281000-7f0280287000 rw-p 002b6000 08:01 15073377                   /home/ruby/tst1/ruby/ruby
7f0280287000-7f028029a000 rw-p 00000000 00:00 0 
7f0281bcb000-7f0281ff5000 rw-p 00000000 00:00 0                          [heap]
7fff3036d000-7fff3038e000 rw-p 00000000 00:00 0 
7fff303fc000-7fff303fe000 r-xp 00000000 00:00 0                          [vdso]
7fff303fe000-7fff30400000 r--p 00000000 00:00 0                          [vvar]
ffffffffff600000-ffffffffff601000 r-xp 00000000 00:00 0                  [vsyscall]


[NOTE]
You may have encountered a bug in the Ruby interpreter or extension libraries.
Bug reports are welcome.
For details: http://www.ruby-lang.org/bugreport.html

[nobu (Nobuyoshi Nakada)]

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

Applied in changeset r48583.

---

parse.y: fix invalid keyword argument

• parse.y (f_label, f_kw, formal_argument_gen): ignore invalid formal argument in keyword argument definition. [ruby-dev:48742] [Bug #10545]

[nobu (Nobuyoshi Nakada)]

• Related to Bug #11663: Segfault when using multiple keywords if the first keyword is invalid added