From: "H. Peter Anvin" <hpa@zytor.com>
To: Edgar Toernig <froese@gmx.de>
Cc: Albert Cahalan <albert@users.sourceforge.net>,
linux-kernel mailing list <linux-kernel@vger.kernel.org>,
cloos@jhcloos.com, root@chaos.analogic.com, nuno@itsari.org
Subject: Re: something funny about tty's on 2.6.4-rc1-mm1
Date: Tue, 02 Mar 2004 15:59:59 -0800 [thread overview]
Message-ID: <40451FFF.5030308@zytor.com> (raw)
In-Reply-To: <20040302234626.1f00e788.froese@gmx.de>
Edgar Toernig wrote:
>
> IMHO more important: what about utmp? It would become terribly
> large. Beside that, such huge numbers won't fit into ut_id.
>
> Ciao, ET.
>
> --[man utmp extract]--
> ...
> char ut_id[4]; /* init id or abbrev. ttyname */
> ...
> xterm(1) and other terminal emulators directly create a
> USER_PROCESS record and generate the ut_id by using the
> last two letters of /dev/ttyp%c or by using p%d for
> /dev/pts/%d. If they find a DEAD_PROCESS for this id,
> they recycle it, otherwise they create a new entry.
> ...
That's broken for anything more than 1000 ptys, OR if you're using BSD
and Unix98 ptys at the same time.
In other words, it's totally broken.
-hpa
next prev parent reply other threads:[~2004-03-03 0:03 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-03-02 19:04 something funny about tty's on 2.6.4-rc1-mm1 Albert Cahalan
2004-03-02 19:54 ` H. Peter Anvin
2004-03-02 22:46 ` Edgar Toernig
2004-03-02 23:59 ` H. Peter Anvin [this message]
-- strict thread matches above, loose matches on Subject: below --
2004-03-03 4:12 Albert Cahalan
2004-03-01 18:45 Nuno Monteiro
2004-03-01 19:09 ` Richard B. Johnson
2004-03-02 5:47 ` H. Peter Anvin
2004-03-02 14:52 ` James H. Cloos Jr.
2004-03-02 15:02 ` Richard B. Johnson
2004-03-02 17:47 ` James H. Cloos Jr.
2004-03-02 16:54 ` H. Peter Anvin
2004-03-02 22:08 ` Andrew Morton
2004-03-03 2:29 ` H. Peter Anvin
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