From: Minero Aoki <aamine@...>
Date: 2002-11-03T12:32:13+09:00
Subject: [ruby-dev:18621] Re: racc segv revisited

あおきです。

追加です。家では allocated はこんな感じです。

(gdb) run bin.racc --no-extentions src.y
Starting program: /usr/local/bin/ruby-1.6.7 bin.racc --no-extentions src.y

Program received signal SIGSEGV, Segmentation fault.
0x12008ccd4 in init_regs (regs=0x120104268, num_regs=538837240)
    at regex.c:3468
3468        regs->beg[i] = regs->end[i] = -1;
(gdb) list
3463        TREALLOC(regs->beg, num_regs, int);
3464        TREALLOC(regs->end, num_regs, int);
3465        regs->allocated = num_regs;
3466      }
3467      for (i=0; i<num_regs; i++) {
3468        regs->beg[i] = regs->end[i] = -1;
3469      }
3470    }
3471    
3472    /* Match the pattern described by BUFP against STRING, which is of
(gdb) p regs
$1 = (struct re_registers *) 0x120104268
(gdb) p *regs
$2 = {allocated = 6353, num_regs = 0, beg = 0x18d1, end = 0x12016cbd8}
(gdb) 

allocated は微妙に壊れてて、beg が破壊されてるみたいです。
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青木峰郎