[PHP-dev 569] Re: Fwd: Re: [PHP-DEV] mbstring and 4.3.0
Moriyoshi Koizumi
php-dev@php.gr.jp
Wed, 13 Nov 2002 07:25:14 +0900
小泉です。
さきほど私が当てたパッチで多分問題は回避されたはずです。
Ilia にはそう言い張ってみましたが、どうなることやら ^^;
Rui Hirokawa <rui_hirokawa@ybb.ne.jp> wrote:
>
> 廣川です。
>
> 関数オーバーローディングは評判悪いですね(^_^)
>
> 初期化されていない状況が生じているのだと思いますが、
> 調べてみます。
>
>
> On Wed, 13 Nov 2002 06:19:02 +0900
> Moriyoshi Koizumi <moriyoshi@at.wakwak.com> wrote:
>
> Moriyoshi> 小泉です。
> Moriyoshi>
> Moriyoshi> 悪いニュースが三連続になってしまいましたが、
> Moriyoshi> 念のため転送しておきます。関数オーバーロードで segfault という
> Moriyoshi> つっこみなんですが…。
> Moriyoshi>
> Moriyoshi> 現在この問題が発生した原因を究明している余裕がありません。
> Moriyoshi> どなたか見ていただけないでしょうか？
> Moriyoshi>
> Moriyoshi> # 問題発生原因が本当にオーバーロードなのか、それとも、
> Moriyoshi> # オーバーロードによって露呈したEGにまつわる別の不具合なのか。
> Moriyoshi> # これだとバックトレースがまったく役に立ちませんね。
> Moriyoshi>
> Moriyoshi>
> Moriyoshi> "Ilia A." <ilia@prohost.org> wrote:
> Moriyoshi> >
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> Moriyoshi> > From: "Ilia A." <ilia@prohost.org>
> Moriyoshi> > Reply-To: ilia@prohost.org
> Moriyoshi> > To: Andrei Zmievski <andrei@gravitonic.com>,
> Moriyoshi> > PHP Developers <php-dev@lists.php.net>
> Moriyoshi> > Date: Tue, 12 Nov 2002 15:07:44 -0500
> Moriyoshi> > X-Mailer: KMail [version 1.4]
> Moriyoshi> > References: <20021107150448.GA3533@hyperion.gravitonic.com>
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> Moriyoshi> > Message-Id: <200211121507.44115.ilia@prohost.org>
> Moriyoshi> > Subject: Re: [PHP-DEV] mbstring and 4.3.0
> Moriyoshi> > X-UIDL: e309e329402b182e8f1d662b6653457c
> Moriyoshi> >
> Moriyoshi> > On November 7, 2002 10:04 am, Andrei Zmievski wrote:
> Moriyoshi> > > At the PHP Conference in Germany several of us have discussed the
> Moriyoshi> > > current state of mbstring and there was a proposal to not have it
> Moriyoshi> > > enabled by default for 4.3.0 release. It seems that the extension
> Moriyoshi> > > attempts to do "magic" stuff by overloading functions in the executor
> Moriyoshi> > > globals and, as Thies said, that could be dangerous. Also, doesn't it
> Moriyoshi> > > affect run-tests.php script currently?
> Moriyoshi> > >
> Moriyoshi> >
> Moriyoshi> > On the note of overloading done by mbstring, it appears this behavior is not
> Moriyoshi> > entirely stable. On at least one test system (Sun OS 5.9) it causes crashes
> Moriyoshi> > and overruns by using the test script in the test suite.
> Moriyoshi> > Ex:
> Moriyoshi> > sapi/cli/php -d "mbstring.func_overload=1" -r ''
> Moriyoshi> > Unknown(0) : Fatal error - (null)() [http://www.php.net/ref.mbstring]:
> Moriyoshi> > mbstring couldn't find function mail.
> Moriyoshi> > Could not startup.
> Moriyoshi> > [Tue Nov 12 21:01:33 2002] Script: '-'
> Moriyoshi> > ---------------------------------------
> Moriyoshi> > php4/Zend/zend_execute.h(44) : Block 0x001FB640 status:
> Moriyoshi> > Beginning: Overrun (magic=0x001FE7F8, expected=0x7312F8DC)
> Moriyoshi> > End: Unknown
> Moriyoshi> > ---------------------------------------
> Moriyoshi> >
> Moriyoshi> > The test script itself (ext/mbstring/tests/overload.phpt) causes a
> Moriyoshi> > segmentation fault. Here is a back trace:
> Moriyoshi> > #0 0x001528f8 in shutdown_memory_manager (silent=1, clean_cache=1) at
> Moriyoshi> > php4/Zend/zend_alloc.c:461
> Moriyoshi> > #1 0x0011d944 in php_module_shutdown () at php4/main/main.c:1219
> Moriyoshi> > #2 0x0018d8d0 in main (argc=39, argv=0xffbffa74) at
> Moriyoshi> > php4/sapi/cli/php_cli.c:761
> Moriyoshi> >
> Moriyoshi> > Ilia
> Moriyoshi> >
> Moriyoshi> > --
> Moriyoshi> > PHP Development Mailing List <http://www.php.net/>
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> Moriyoshi> >
> Moriyoshi>
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>
> --
> Rui Hirokawa <rui_hirokawa@ybb.ne.jp>
>
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