From: William Lee Irwin III <wli@holomorphy.com>
To: "H. Peter Anvin" <hpa@zytor.com>
Cc: linux-kernel <linux-kernel@vger.kernel.org>, tytso@thunk.org
Subject: Re: Updated dynamic pty patch available
Date: Thu, 12 Feb 2004 02:48:24 -0800 [thread overview]
Message-ID: <20040212104824.GA699@holomorphy.com> (raw)
In-Reply-To: <402B168E.4020000@zytor.com>
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On Wed, Feb 11, 2004 at 10:00:46PM -0800, H. Peter Anvin wrote:
> This version of the patch makes *both* legacy and Unix98 ptys configure
> options (Unix98 only if EMBEDDED), and the number of legacy ptys is a
> configuration option -- useful if you want to reduce the memory
> footprint, or if you really wants lots of these guys (256 is no longer a
> hard limit.)
> Additionally, I have added a sysctl option -- /proc/sys/kernel/pty/max
> -- for limiting the number of Unix98 ptys. It was way too effective a
> DoS to eat up all kernel memory by opening /dev/ptmx repeatedly. The
> default is 4096, but it can be adjusted all the way up to 2^20 if desirable.
Comes up and boots just fine here on my target boxen. I'm glad to have it.
Bootlog from one of them attached.
I can send in console/etc. logs from both host and target of stress test
runs, if provided stress tests.
-- wli
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next prev parent reply other threads:[~2004-02-12 10:49 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-02-12 6:00 Updated dynamic pty patch available H. Peter Anvin
2004-02-12 10:48 ` William Lee Irwin III [this message]
2004-02-13 15:37 ` Valdis.Kletnieks
2004-02-14 23:37 ` Matt Mackall
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