Bug #12492
RUBY_DEBUG=gc_stress dumps core
Status:
Closed
Priority:
Normal
Assignee:
-
Target version:
-
ruby -v:
ruby 2.4.0dev (2016-05-09 trunk 55419) [x86_64-darwin15]
Description
次のようにすると core を吐きます。
zsh % PATH="/usr/bin:$PATH" RUBY_DEBUG=gc_stress /usr/bin/lldb -- ./ruby -e 'p GC.stress' (lldb) target create "./ruby" Current executable set to './ruby' (x86_64). (lldb) settings set -- target.run-args "-e" "p GC.stress" (lldb) run Process 15385 launched: './ruby' (x86_64) Process 15385 stopped * thread #1: tid = 0x5a843, 0x00000001001b4dda ruby`rb_const_defined(klass=4320291960, id=3643) + 106 at variable.c:3082, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1, address=0x10) frame #0: 0x00000001001b4dda ruby`rb_const_defined(klass=4320291960, id=3643) + 106 at variable.c:3082 3079 st_table * 3080 rb_st_copy(VALUE obj, struct st_table *orig_tbl) 3081 { -> 3082 st_table *new_tbl = st_copy(orig_tbl); 3083 st_foreach(new_tbl, tbl_copy_i, (st_data_t)obj); 3084 return new_tbl; 3085 } (lldb) bt * thread #1: tid = 0x5a843, 0x00000001001b4dda ruby`rb_const_defined(klass=4320291960, id=3643) + 106 at variable.c:3082, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1, address=0x10) * frame #0: 0x00000001001b4dda ruby`rb_const_defined(klass=4320291960, id=3643) + 106 at variable.c:3082 frame #1: 0x000000010002d6b8 ruby`rb_define_module(name="Kernel") + 40 at class.c:773 frame #2: 0x00000001000d4287 ruby`InitVM_Object + 263 at object.c:3407 frame #3: 0x000000010009853d ruby`rb_call_inits + 29 at inits.c:23 frame #4: 0x000000010006789b ruby`ruby_setup + 155 at eval.c:60 frame #5: 0x0000000100067909 ruby`ruby_init + 9 at eval.c:76 frame #6: 0x000000010021369d ruby`main(argc=<unavailable>, argv=<unavailable>) + 77 at main.c:35 frame #7: 0x00007fff9c00f5ad libdyld.dylib`start + 1 frame #8: 0x00007fff9c00f5ad libdyld.dylib`start + 1 (lldb)
ruby-dev:41536 が再発しているのではないでしょうか。
Related issues
Updated by shyouhei (Shyouhei Urabe) over 4 years ago
なお当方の環境はgcc version 6.0.0 20160320 (experimental) (Homebrew gcc6 6-20160320)です。
Updated by nobu (Nobuyoshi Nakada) over 4 years ago
- Status changed from Open to Closed
Applied in changeset r55429.
prevent rb_cObject from GC
- class.c (Init_class_hierarchy): prevent rb_cObject which is the class tree root, from GC. [ruby-dev:49666] [Bug #12492]
Updated by usa (Usaku NAKAMURA) over 4 years ago
- Backport changed from 2.1: UNKNOWN, 2.2: UNKNOWN, 2.3: UNKNOWN to 2.1: DONTNEED, 2.2: DONTNEED, 2.3: DONTNEED
Updated by shyouhei (Shyouhei Urabe) over 3 years ago
- Backport changed from 2.1: DONTNEED, 2.2: DONTNEED, 2.3: DONTNEED to 2.1: REQUIRED, 2.2: REQUIRED, 2.3: REQUIRED
GCC 7が出ていたので試したところ再現したので、r55429 はバックポートが必要です。
% lldb -- miniruby -ve0 (lldb) target create "miniruby" Current executable set to 'miniruby' (x86_64). (lldb) settings set -- target.run-args "-ve0" (lldb) run Process 49206 launched: 'miniruby' (x86_64) Process 49206 stopped * thread #1: tid = 0xee0d7, 0x00000001001b2f3a miniruby`rb_const_defined(klass=4317686760, id=3579) + 106 at variable.c:3067, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1, address=0x10) frame #0: 0x00000001001b2f3a miniruby`rb_const_defined(klass=4317686760, id=3579) + 106 at variable.c:3067 3064 rb_const_entry_t * 3065 rb_const_lookup(VALUE klass, ID id) 3066 { -> 3067 st_table *tbl = RCLASS_CONST_TBL(klass); 3068 st_data_t val; 3069 3070 if (tbl && st_lookup(tbl, (st_data_t)id, &val)) { (lldb) bt * thread #1: tid = 0xee0d7, 0x00000001001b2f3a miniruby`rb_const_defined(klass=4317686760, id=3579) + 106 at variable.c:3067, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1, address=0x10) * frame #0: 0x00000001001b2f3a miniruby`rb_const_defined(klass=4317686760, id=3579) + 106 at variable.c:3067 frame #1: 0x0000000100029358 miniruby`rb_define_module(name="Kernel") + 40 at class.c:771 frame #2: 0x00000001000d3907 miniruby`InitVM_Object + 263 at object.c:3412 frame #3: 0x000000010009523d miniruby`rb_call_inits + 29 at inits.c:23 frame #4: 0x00000001000630ee miniruby`ruby_setup + 190 at eval.c:60 frame #5: 0x0000000100063119 miniruby`ruby_init + 9 at eval.c:76 frame #6: 0x0000000100210ead miniruby`main(argc=<unavailable>, argv=<unavailable>) + 77 at main.c:35 frame #7: 0x00007fff972a35ad libdyld.dylib`start + 1 (lldb)
Updated by usa (Usaku NAKAMURA) over 3 years ago
- Backport changed from 2.1: REQUIRED, 2.2: REQUIRED, 2.3: REQUIRED to 2.1: REQUIRED, 2.2: REQUIRED, 2.3: DONE
ruby_2_3 r59215 merged revision(s) 55429.
Updated by shyouhei (Shyouhei Urabe) about 2 years ago
- Related to Bug #15288: RUBY_DEBUG=gc_stress dumps core added