From: Kazuhiro Yoshida Date: 1999-09-26T14:47:24+09:00 Subject: [ruby-dev:7921] Re: SEGV at st.c もりきゅうです． Yukihiro Matsumoto さんは書きました: > * gdbのwhereの出力を付ける したに貼りつけました． > * 再現するスクリプトをメールする http://www.users.yun.co.jp/~moriq/ruby/ruby-xlib-0.6.1.tar.gz を make して，テキストエディット部分をクリックしてスペースキー を押しっぱなしにすると再現するはず． >のいずれかまたは両方を行ってください。もちろん第3の選択肢で >ある「自分でデバッグしてパッチを送る」というのもアリです。 はう． リンクトリストのしっぽを NULL じゃなくて table->tail とかに すると直るかも，と思いました． -- (gdb) run -Ilib sample/hscrable.rb Starting program: /usr/local/bin/ruby -Ilib sample/hscrable.rb Program received signal SIGSEGV, Segmentation fault. st_free_table (table=0x105f80) at st.c:185 185 next = ptr->next; (gdb) where #0 st_free_table (table=0x105f80) at st.c:185 #1 0x58778 in rb_free_generic_ivar (obj=518308) at variable.c:819 #2 0x13446 in obj_free (obj=518308) at gc.c:743 #3 0x132b7 in gc_sweep () at gc.c:676 #4 0x138da in rb_gc () at gc.c:955 #5 0x12859 in rb_newobj () at gc.c:279 #6 0x1d51 in new_dvar (id=0, value=0, prev=0x0) at eval.c:499 #7 0x7dc9 in rb_yield_0 (val=596008, self=0, klass=0, acheck=0) at eval.c:3195 #8 0x80c5 in rb_yield (val=596008) at eval.c:3266 #9 0x5a35b in rb_ary_each (ary=503868) at array.c:557 #10 0x90a7 in call_cfunc (func=0x5a340 , recv=503868, len=0, argc=0, argv=0x0) at eval.c:3716 #11 0x958a in rb_call0 (klass=680368, recv=503868, id=3497, argc=0, argv=0x0, body=0xa5e54, nosuper=1) at eval.c:3852 #12 0x9c20 in rb_call (klass=680368, recv=503868, mid=3497, argc=0, argv=0x0, scope=0) at eval.c:4048 #13 0x597c in rb_eval (self=597208, node=0x7d42c) at eval.c:2222 #14 0x4c93 in rb_eval (self=597208, node=0x7cf68) at eval.c:1968 #15 0x453e in rb_eval (self=597208, node=0x7cf40) at eval.c:1756 #16 0x98c1 in rb_call0 (klass=511428, recv=597208, id=9265, argc=0, argv=0xefbf9de0, body=0x7d83c, nosuper=0) at eval.c:3956 #17 0x9c20 in rb_call (klass=511428, recv=597208, mid=9265, argc=1, argv=0xefbf9ddc, scope=0) at eval.c:4048 #18 0x597c in rb_eval (self=596948, node=0x88250) at eval.c:2222 #19 0x453e in rb_eval (self=596948, node=0x88110) at eval.c:1756 #20 0x98c1 in rb_call0 (klass=556028, recv=596948, id=9265, argc=0, argv=0x0, body=0x88110, nosuper=0) at eval.c:3956 #21 0x9c20 in rb_call (klass=556028, recv=596948, mid=9265, argc=0, argv=0x0, scope=2) at eval.c:4048 #22 0x597c in rb_eval (self=596948, node=0x88ee4) at eval.c:2222 #23 0x98c1 in rb_call0 (klass=556028, recv=596948, id=9780, argc=0, argv=0xefbfa6d4, body=0x88f20, nosuper=0) at eval.c:3956 #24 0x9c20 in rb_call (klass=556028, recv=596948, mid=9780, argc=1, argv=0xefbfa6d0, scope=0) at eval.c:4048 #25 0x597c in rb_eval (self=596948, node=0x89290) at eval.c:2222 #26 0x453e in rb_eval (self=596948, node=0x89254) at eval.c:1756 #27 0x98c1 in rb_call0 (klass=556028, recv=596948, id=9825, argc=0, argv=0xefbfac74, body=0x89268, nosuper=0) at eval.c:3956 #28 0x9c20 in rb_call (klass=556028, recv=596948, mid=9825, argc=1, argv=0xefbfac70, scope=1) at eval.c:4048 #29 0x597c in rb_eval (self=596948, node=0x89b14) at eval.c:2222 #30 0x453e in rb_eval (self=596948, node=0x89aec) at eval.c:1756 #31 0x98c1 in rb_call0 (klass=556028, recv=596948, id=8817, argc=0, argv=0xefbfb218, body=0x8c79c, nosuper=0) at eval.c:3956 #32 0x9c20 in rb_call (klass=556028, recv=596948, mid=8817, argc=1, argv=0xefbfb214, scope=1) at eval.c:4048 #33 0x597c in rb_eval (self=596948, node=0x996b8) at eval.c:2222 #34 0x98c1 in rb_call0 (klass=625588, recv=596948, id=9241, argc=0, argv=0xefbfb56c, body=0x9967c, nosuper=0) at eval.c:3956 #35 0x9c20 in rb_call (klass=625588, recv=596948, mid=9241, argc=1, argv=0xefbfb568, scope=0) at eval.c:4048 #36 0x597c in rb_eval (self=652488, node=0x9b5bc) at eval.c:2222 #37 0x7f7b in rb_yield_0 (val=596948, self=652488, klass=0, acheck=0) at eval.c:3226 #38 0x80c5 in rb_yield (val=596948) at eval.c:3266 #39 0x5a35b in rb_ary_each (ary=592968) at array.c:557 #40 0x90a7 in call_cfunc (func=0x5a340 , recv=592968, len=0, argc=0, argv=0x0) at eval.c:3716 #41 0x958a in rb_call0 (klass=680368, recv=592968, id=3497, argc=0, argv=0x0, body=0xa5e54, nosuper=1) at eval.c:3852 #42 0x9c20 in rb_call (klass=680368, recv=592968, mid=3497, argc=0, argv=0x0, scope=0) at eval.c:4048 #43 0x597c in rb_eval (self=652488, node=0x9b6fc) at eval.c:2222 #44 0x4c93 in rb_eval (self=652488, node=0x9b558) at eval.c:1968 #45 0x98c1 in rb_call0 (klass=595988, recv=652488, id=8817, argc=0, argv=0xefbfbf44, body=0x9b508, nosuper=0) at eval.c:3956 #46 0x9c20 in rb_call (klass=595988, recv=652488, mid=8817, argc=1, argv=0xefbfbf40, scope=1) at eval.c:4048 #47 0x597c in rb_eval (self=652488, node=0x996b8) at eval.c:2222 #48 0x98c1 in rb_call0 (klass=625588, recv=652488, id=9241, argc=0, argv=0xefbfc298, body=0x9967c, nosuper=0) at eval.c:3956 #49 0x9c20 in rb_call (klass=625588, recv=652488, mid=9241, argc=1, argv=0xefbfc294, scope=0) at eval.c:4048 #50 0x597c in rb_eval (self=598668, node=0x9b5bc) at eval.c:2222 #51 0x7f7b in rb_yield_0 (val=652488, self=598668, klass=0, acheck=0) at eval.c:3226 #52 0x80c5 in rb_yield (val=652488) at eval.c:3266 #53 0x5a35b in rb_ary_each (ary=592888) at array.c:557 #54 0x90a7 in call_cfunc (func=0x5a340 , recv=592888, len=0, argc=0, argv=0x0) at eval.c:3716 #55 0x958a in rb_call0 (klass=680368, recv=592888, id=3497, argc=0, argv=0x0, body=0xa5e54, nosuper=1) at eval.c:3852 #56 0x9c20 in rb_call (klass=680368, recv=592888, mid=3497, argc=0, argv=0x0, scope=0) at eval.c:4048 #57 0x597c in rb_eval (self=598668, node=0x9b6fc) at eval.c:2222 #58 0x4c93 in rb_eval (self=598668, node=0x9b558) at eval.c:1968 #59 0x98c1 in rb_call0 (klass=620588, recv=598668, id=8817, argc=0, argv=0xefbfcc70, body=0x9b508, nosuper=0) at eval.c:3956 #60 0x9c20 in rb_call (klass=620588, recv=598668, mid=8817, argc=1, argv=0xefbfcc6c, scope=1) at eval.c:4048 #61 0x9df9 in rb_funcall (recv=598668, mid=8817, n=1) at eval.c:4122 #62 0x811dc34 in ?? () from /usr/local/pub/src/ruby-xlib/./xlib.so #63 0x811dc7d in ?? () from /usr/local/pub/src/ruby-xlib/./xlib.so #64 0x811e90c in ?? () from /usr/local/pub/src/ruby-xlib/./xlib.so #65 0x90a7 in call_cfunc (func=0x811e6f4 , recv=511128, len=0, argc=0, argv=0x0) at eval.c:3716 #66 0x958a in rb_call0 (klass=645248, recv=511128, id=8361, argc=0, argv=0x0, body=0x9d7b8, nosuper=1) at eval.c:3852 #67 0x9c20 in rb_call (klass=645248, recv=511128, mid=8361, argc=0, argv=0x0, scope=0) at eval.c:4048 #68 0x597c in rb_eval (self=700108, node=0x9eab4) at eval.c:2222 #69 0x49a3 in rb_eval (self=700108, node=0x9eaa0) at eval.c:1904 #70 0x98c1 in rb_call0 (klass=703768, recv=700108, id=8289, argc=0, argv=0x0, body=0x9ea78, nosuper=0) at eval.c:3956 #71 0x9c20 in rb_call (klass=703768, recv=700108, mid=8289, argc=0, argv=0x0, scope=2) at eval.c:4048 #72 0x597c in rb_eval (self=700108, node=0x9f5e0) at eval.c:2222 #73 0x290c in eval_node (self=700108) at eval.c:1003 #74 0x2a78 in ruby_run () at eval.c:1039 #75 0x15d1 in main (argc=3, argv=0xefbfd8f8, envp=0xefbfd908) at main.c:39 (gdb) list 180 int i; 181 182 for(i = 0; i < table->num_bins; i++) { 183 ptr = table->bins[i]; 184 while (ptr != 0) { 185 next = ptr->next; 186 free(ptr); 187 ptr = next; 188 } 189 } (gdb) print i $1 = 0 (gdb) print table->num_bins $2 = 11 (gdb) print ptr->key Error accessing memory address 0x64697744: Invalid argument. (gdb) print table->num_entries $3 = 1 (gdb) q ---- Kazuhiro Yoshida moriq@ma2.seikyou.ne.jp