From: Andries Brouwer <Andries.Brouwer@cwi.nl>
To: Andrew Morton <akpm@osdl.org>
Cc: Greg KH <greg@kroah.com>,
mingo@elte.hu, diffie@gmail.com, linux-kernel@vger.kernel.org,
diffie@blazebox.homeip.net, Alan Cox <alan@lxorguk.ukuu.org.uk>,
Andries Brouwer <Andries.Brouwer@cwi.nl>
Subject: Re: 2.6.10-rc1-mm3
Date: Tue, 9 Nov 2004 11:33:54 +0100 [thread overview]
Message-ID: <20041109103354.GA14497@apps.cwi.nl> (raw)
In-Reply-To: <20041108212747.33b6e14a.akpm@osdl.org>
On Mon, Nov 08, 2004 at 09:27:47PM -0800, Andrew Morton wrote:
> As for the limitation of 256 legacy ptys: we should either raise it by
> cooking up new device names or limit it to 256 in config. The latter, I
> guess. Is there a requirement to support more than 256 legacy ptys?
No. glibc uses 256 of them.
To make life interesting they use names
"pqrstuvwxyzabcde"/"0123456789abcdef"
while BSD used
"pqrsPQRS"/"0123456789abcdefghijklmnopqrstuv"
and the first ENOENT terminates the search, so old BSD programs
might see only 16 ptys.
I would be inclined to remove the variable CONFIG_LEGACY_PTY_COUNT,
using 256. If one really wants to use CONFIG_LEGACY_PTYS, that is
the right number. So, in include/linux/tty.h:
- #define NR_PTYS CONFIG_LEGACY_PTY_COUNT
+ #define NR_PTYS 256
Andries
next prev parent reply other threads:[~2004-11-09 10:34 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-11-06 19:04 2.6.10-rc1-mm3 Paul Blazejowski
2004-11-07 10:48 ` 2.6.10-rc1-mm3 Andrew Morton
2004-11-07 17:24 ` 2.6.10-rc1-mm3 Paul Blazejowski
2004-11-08 7:59 ` 2.6.10-rc1-mm3 Ingo Molnar
2004-11-08 7:42 ` 2.6.10-rc1-mm3 Andrew Morton
2004-11-08 22:42 ` 2.6.10-rc1-mm3 Greg KH
2004-11-09 5:27 ` 2.6.10-rc1-mm3 Andrew Morton
2004-11-09 7:14 ` 2.6.10-rc1-mm3 Greg KH
2004-11-09 8:05 ` 2.6.10-rc1-mm3 Greg KH
2004-11-09 8:15 ` 2.6.10-rc1-mm3 Andrew Morton
2004-11-09 8:27 ` 2.6.10-rc1-mm3 Greg KH
2004-11-09 12:11 ` 2.6.10-rc1-mm3 Tejun Heo
2004-11-09 7:53 ` 2.6.10-rc1-mm3 Olivier Poitrey
2004-11-09 8:22 ` 2.6.10-rc1-mm3 Arjan van de Ven
2004-11-09 9:25 ` 2.6.10-rc1-mm3 Olivier Poitrey
2004-11-09 10:37 ` 2.6.10-rc1-mm3 Ingo Molnar
2004-11-09 9:39 ` 2.6.10-rc1-mm3 Andrew Morton
2004-11-09 10:44 ` 2.6.10-rc1-mm3 Ingo Molnar
2004-11-09 10:33 ` Andries Brouwer [this message]
2004-11-11 1:52 ` 2.6.10-rc1-mm3 H. Peter Anvin
2004-11-09 18:24 ` 2.6.10-rc1-mm3 Paul Blazejowski
-- strict thread matches above, loose matches on Subject: below --
2004-11-08 12:34 2.6.10-rc1-mm3 Karsten Wiese
2004-11-08 21:40 ` 2.6.10-rc1-mm3 Karsten Wiese
2004-11-08 22:25 ` 2.6.10-rc1-mm3 linux-os
2004-11-08 23:30 ` 2.6.10-rc1-mm3 Chris Wright
[not found] <20041105001328.3ba97e08.akpm@osdl.org.suse.lists.linux.kernel>
[not found] ` <418B5C70.7090206@kolivas.org.suse.lists.linux.kernel>
2004-11-05 11:53 ` 2.6.10-rc1-mm3 Andi Kleen
2004-11-05 12:16 ` 2.6.10-rc1-mm3 Con Kolivas
2004-11-05 12:23 ` 2.6.10-rc1-mm3 Andi Kleen
2004-11-05 8:13 2.6.10-rc1-mm3 Andrew Morton
2004-11-05 9:41 ` 2.6.10-rc1-mm3 Lorenzo Allegrucci
2004-11-05 10:17 ` 2.6.10-rc1-mm3 Andrew Morton
2004-11-05 10:48 ` 2.6.10-rc1-mm3 Andi Kleen
2004-11-05 12:36 ` 2.6.10-rc1-mm3 Lorenzo Allegrucci
2004-11-05 10:22 ` 2.6.10-rc1-mm3 Ingo Molnar
2004-11-05 10:38 ` 2.6.10-rc1-mm3 Andi Kleen
2004-11-05 11:09 ` 2.6.10-rc1-mm3 Ingo Molnar
2004-11-05 11:17 ` 2.6.10-rc1-mm3 Andi Kleen
2004-11-05 11:24 ` 2.6.10-rc1-mm3 Ingo Molnar
2004-11-05 11:43 ` 2.6.10-rc1-mm3 Andi Kleen
2004-11-05 12:15 ` 2.6.10-rc1-mm3 Ingo Molnar
2004-11-05 12:22 ` 2.6.10-rc1-mm3 Andi Kleen
2004-11-05 12:57 ` 2.6.10-rc1-mm3 Rafael J. Wysocki
2004-11-05 13:02 ` 2.6.10-rc1-mm3 Andi Kleen
2004-11-05 17:47 ` 2.6.10-rc1-mm3 Rafael J. Wysocki
2004-11-05 11:20 ` 2.6.10-rc1-mm3 Russell King
2004-11-05 11:30 ` 2.6.10-rc1-mm3 Andi Kleen
2004-11-05 10:17 ` 2.6.10-rc1-mm3 Ingo Molnar
2004-11-05 15:54 ` 2.6.10-rc1-mm3 Michael Baehr
2004-11-05 10:56 ` 2.6.10-rc1-mm3 Con Kolivas
2004-11-05 18:07 ` 2.6.10-rc1-mm3 Rafael J. Wysocki
2004-11-05 18:07 ` 2.6.10-rc1-mm3 Adam Heath
2004-11-06 7:16 ` 2.6.10-rc1-mm3 Pasi Savolainen
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20041109103354.GA14497@apps.cwi.nl \
--to=andries.brouwer@cwi.nl \
--cc=akpm@osdl.org \
--cc=alan@lxorguk.ukuu.org.uk \
--cc=diffie@blazebox.homeip.net \
--cc=diffie@gmail.com \
--cc=greg@kroah.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@elte.hu \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox