From: Ingo Molnar <mingo@elte.hu>
To: Chris Wright <chrisw@osdl.org>
Cc: Rik van Riel <riel@redhat.com>,
Andrea Arcangeli <andrea@cpushare.com>,
Andrew Morton <akpm@osdl.org>,
linux-kernel@vger.kernel.org
Subject: Re: seccomp for 2.6.11-rc1-bk8
Date: Fri, 21 Jan 2005 20:55:22 +0100 [thread overview]
Message-ID: <20050121195522.GA14982@elte.hu> (raw)
In-Reply-To: <20050121105001.A24171@build.pdx.osdl.net>
* Chris Wright <chrisw@osdl.org> wrote:
> * Rik van Riel (riel@redhat.com) wrote:
> > Yes, but do you care about the performance of syscalls
> > which the program isn't allowed to call at all ? ;)
>
> Heh, no, but it's for every syscall not just denied ones. Point is
> simply that ptrace (complexity aside) doesn't scale the same.
seccomp is about CPU-intense calculation jobs - the only syscalls
allowed are read/write (and sigreturn). UML implements a full kernel
via ptrace and CPU-intense applications run at native speed.
Ingo
next prev parent reply other threads:[~2005-01-21 19:55 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-01-21 10:06 seccomp for 2.6.11-rc1-bk8 Andrea Arcangeli
2005-01-21 12:03 ` Ingo Molnar
2005-01-21 12:47 ` Ingo Molnar
2005-01-21 12:55 ` Ingo Molnar
2005-01-21 21:31 ` Roland McGrath
2005-01-22 3:25 ` Andrea Arcangeli
2005-01-21 20:24 ` Andrea Arcangeli
2005-01-21 17:39 ` Chris Wright
2005-01-21 18:39 ` Rik van Riel
2005-01-21 18:50 ` Chris Wright
2005-01-21 19:55 ` Ingo Molnar [this message]
2005-01-21 20:34 ` Andrea Arcangeli
2005-01-21 20:54 ` Ingo Molnar
2005-01-22 2:51 ` Andrea Arcangeli
2005-01-22 10:32 ` Pavel Machek
2005-01-22 17:25 ` Andrea Arcangeli
2005-01-22 19:42 ` Pavel Machek
2005-01-22 23:34 ` Andrea Arcangeli
2005-01-23 0:07 ` Pavel Machek
2005-01-23 0:46 ` Andrea Arcangeli
2005-01-23 0:43 ` Rik van Riel
2005-01-23 0:52 ` Andrea Arcangeli
2005-01-23 4:43 ` Valdis.Kletnieks
2005-01-23 6:11 ` Andrea Arcangeli
2005-01-21 18:59 ` David Wagner
2005-01-21 19:17 ` Chris Wright
2005-01-23 7:34 ` David Wagner
2005-01-24 15:10 ` Daniel Jacobowitz
2005-02-15 9:25 ` Andrea Arcangeli
2005-02-25 19:01 ` David Wagner
2005-01-21 12:11 ` Pavel Machek
2005-02-15 9:32 ` seccomp for 2.6.11-rc4 Andrea Arcangeli
2005-02-16 5:25 ` Herbert Poetzl
2005-02-18 2:25 ` Andrea Arcangeli
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