ruby-dev

なかだです。

At Fri, 7 Nov 2003 11:25:11 +0900,
Hidetoshi NAGAI wrote:
> 後は Tcl_DoOneEvent の再入制限くらいですかねぇ．．．
> テスト用のパッチを作りますのでしばしお待ちを．

スタックトレースによると、tclからコールバックされた(?)ip_ruby()
からip_eval()が呼ばれて、再度tclを呼んで落ちているように見えま
す。これが関係しているかどうか、分かりませんが。

#10 0x40633f54 in TclSetCmdNameObj () from /usr/lib/libtcl8.3.so
#11 0x40633d63 in Tcl_GetCommandFromObj () from /usr/lib/libtcl8.3.so
#12 0x4064e26b in TclExpandTokenArray () from /usr/lib/libtcl8.3.so
#13 0x4064ec02 in Tcl_EvalEx () from /usr/lib/libtcl8.3.so
#14 0x4064ef66 in Tcl_Eval () from /usr/lib/libtcl8.3.so
#15 0x400c403a in ip_eval (self=1078876592, str=1078071452)
    at /home/nobu/src/ruby/1.8/ext/tcltklib/tcltklib.c:1782

#181 0x400c2d6d in ip_ruby (clientData=0x0, interp=0x8125188, argc=0, argv=0x0)
    at /home/nobu/src/ruby/1.8/ext/tcltklib/tcltklib.c:846
#182 0x4062f5b5 in TclExecuteByteCode () from /usr/lib/libtcl8.3.so
#183 0x40613233 in Tcl_EvalObjEx () from /usr/lib/libtcl8.3.so
#184 0x406556cb in TclObjInterpProc () from /usr/lib/libtcl8.3.so
#185 0x4064e517 in TclExpandTokenArray () from /usr/lib/libtcl8.3.so
#186 0x4064ec02 in Tcl_EvalEx () from /usr/lib/libtcl8.3.so
#187 0x4065afad in Tcl_AfterObjCmd () from /usr/lib/libtcl8.3.so
#188 0x4065a5e1 in Tcl_DeleteTimerHandler () from /usr/lib/libtcl8.3.so
#189 0x4064c00d in Tcl_ServiceEvent () from /usr/lib/libtcl8.3.so
#190 0x4064c335 in Tcl_DoOneEvent () from /usr/lib/libtcl8.3.so

> @@ -832,10 +840,16 @@
>      DUMP2("rb_eval_string(%s)", arg);
>      old_trapflg = rb_trap_immediate;
>      rb_trap_immediate = 0;
> +#if defined(HAVE_LIBPTHREAD) && defined(USE_PTHREAD_EXTLIB)
> +    pthread_mutex_lock(&mtx_ip_ruby);
> +#endif
>      res = rb_rescue2(rb_eval_string, (VALUE)arg, 
>                       ip_eval_rescue, (VALUE)&failed,
>                       rb_eStandardError, rb_eScriptError, rb_eSystemExit, 
>  		     (VALUE)0);
> +#if defined(HAVE_LIBPTHREAD) && defined(USE_PTHREAD_EXTLIB)
> +    pthread_mutex_unlock(&mtx_ip_ruby);
> +#endif
>      rb_trap_immediate = old_trapflg;

それはそうと、このmutexの解放とrb_trap_immediateの復帰は
rb_ensure()かrb_protect()を使わないとまずいような気がします。

-- 
--- 僕の前にBugはない。
--- 僕の後ろにBugはできる。
    中田 伸悦

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