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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Luca Veraldi <luca.veraldi@katamail.com>
Cc: Timothy Miller <miller@techsource.com>,
	Arjan van de Ven <arjanv@redhat.com>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: Efficient IPC mechanism on Linux
Date: Fri, 12 Sep 2003 23:37:34 +0100	[thread overview]
Message-ID: <1063406253.5783.22.camel@dhcp23.swansea.linux.org.uk> (raw)
In-Reply-To: <002201c37960$d9cfc740$f0ae7450@wssupremo>

On Gwe, 2003-09-12 at 20:05, Luca Veraldi wrote:
> If you modify the page tables as in my example (and then if you do so only
> for B's pagetable)
> you can be sure the things you're modifying were not present in Firmware
> TLBs, not yet.
> 
> Because those pagetable entries refer to a logical address interval
> you've just allocated in B address space.

They may be present in some form, but you are right the task switch will
flush them in the non SMP case on the x86 platform. In the SMP case it
wont work. 

Alan


  reply	other threads:[~2003-09-12 22:39 UTC|newest]

Thread overview: 74+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-09-09 17:30 Efficient IPC mechanism on Linux Luca Veraldi
2003-09-09 21:17 ` Alan Cox
2003-09-09 21:57   ` Luca Veraldi
2003-09-09 23:11     ` Alan Cox
2003-09-10  9:04       ` Luca Veraldi
2003-09-10 12:56         ` Alan Cox
     [not found] ` <20030909175821.GL16080@Synopsys.COM>
     [not found]   ` <001d01c37703$8edc10e0$36af7450@wssupremo>
     [not found]     ` <20030910064508.GA25795@Synopsys.COM>
2003-09-10  9:18       ` Luca Veraldi
2003-09-10  9:23         ` Arjan van de Ven
2003-09-10  9:40           ` Luca Veraldi
2003-09-10  9:44             ` Arjan van de Ven
2003-09-10 10:09               ` Luca Veraldi
2003-09-10 10:14                 ` Arjan van de Ven
2003-09-10 10:25                   ` Luca Veraldi
2003-09-12 18:41                     ` Timothy Miller
2003-09-12 19:05                       ` Luca Veraldi
2003-09-12 22:37                         ` Alan Cox [this message]
2003-09-10 12:50                 ` Alan Cox
2003-09-10 19:16                 ` Shawn
2003-09-10 20:05                 ` Rik van Riel
2003-09-17  9:52                   ` Rik's list of CS challenges Terje Eggestad
2003-09-17 13:40                     ` Alan Cox
2003-09-18  8:26                       ` Helge Hafting
2003-09-10 12:47             ` Efficient IPC mechanism on Linux Alan Cox
2003-09-10 13:56               ` Luca Veraldi
2003-09-10 15:59                 ` Alan Cox
2003-09-10  9:52           ` Jamie Lokier
2003-09-10 10:07             ` Arjan van de Ven
2003-09-10 10:17               ` Luca Veraldi
2003-09-10 10:37               ` Jamie Lokier
2003-09-10 10:41                 ` Arjan van de Ven
2003-09-10 10:54                   ` Luca Veraldi
2003-09-10 10:54                     ` Arjan van de Ven
2003-09-10 11:16                     ` Nick Piggin
2003-09-10 11:30                       ` Luca Veraldi
2003-09-10 11:44                         ` Nick Piggin
2003-09-10 12:14                           ` Luca Veraldi
2003-09-10 12:42                       ` Alan Cox
2003-09-10 10:11             ` Luca Veraldi
2003-09-10 19:24             ` Pavel Machek
2003-09-10 19:40               ` Jamie Lokier
2003-09-10 21:35                 ` Pavel Machek
2003-09-10 22:06                   ` Jamie Lokier
2003-09-10 11:52         ` Alex Riesen
2003-09-10 12:14           ` Luca Veraldi
2003-09-10 12:11             ` Alex Riesen
2003-09-10 12:29               ` Luca Veraldi
2003-09-10 12:28                 ` Alex Riesen
2003-09-10 12:36                   ` Luca Veraldi
2003-09-10 12:36                     ` Alex Riesen
2003-09-10 13:33                     ` Gábor Lénárt
2003-09-10 14:04                       ` Luca Veraldi
2003-09-10 14:21 ` Stewart Smith
2003-09-10 14:39   ` Luca Veraldi
2003-09-10 16:59 ` Andrea Arcangeli
2003-09-10 17:05   ` Andrea Arcangeli
2003-09-10 17:21     ` Luca Veraldi
2003-09-10 17:41       ` Andrea Arcangeli
2003-09-10 17:39   ` Martin Konold
2003-09-10 18:01     ` Andrea Arcangeli
2003-09-10 18:05       ` Martin Konold
2003-09-10 18:31         ` Chris Friesen
2003-09-10 18:08   ` Inappropriate signatures Larry McVoy
2003-09-10 18:52     ` Jamie Lokier
2003-09-10 19:54     ` rsync head? [was inappropriate signatures] Joe Perches
2003-09-13 15:39     ` Inappropriate signatures Pavel Machek
2003-09-13 16:49       ` Larry McVoy
2003-09-09 18:59 Efficient IPC mechanism on Linux Luca Veraldi
2003-09-09 22:15 Luca Veraldi
     [not found] <F71B37536F3B3D4FA521FEC7FCA17933164A@twinsrv.twinox.se>
2003-09-10 10:36 ` Luca Veraldi
     [not found] <E19x3el-0002Fc-Rj@phoenix.hadiko.de>
2003-09-10 12:16 ` Luca Veraldi
2003-09-10 14:53   ` Larry McVoy
     [not found] <fa.h06p421.1s00ojt@ifi.uio.no>
     [not found] ` <fa.gc37hsp.34id89@ifi.uio.no>
     [not found]   ` <E19x47V-0002JG-J8@phoenix.hadiko.de>
2003-09-10 12:45     ` Luca Veraldi
     [not found] <u9j3.1VB.27@gated-at.bofh.it>
     [not found] ` <u9j3.1VB.29@gated-at.bofh.it>
     [not found]   ` <u9j3.1VB.31@gated-at.bofh.it>
     [not found]     ` <u9j3.1VB.25@gated-at.bofh.it>
     [not found]       ` <ubNY.5Ma.19@gated-at.bofh.it>
     [not found]         ` <uc79.6lg.13@gated-at.bofh.it>
     [not found]           ` <uc7d.6lg.23@gated-at.bofh.it>
     [not found]             ` <uch0.6zx.17@gated-at.bofh.it>
     [not found]               ` <ucqs.6NC.3@gated-at.bofh.it>
     [not found]                 ` <ucqy.6NC.19@gated-at.bofh.it>
     [not found]                   ` <udmB.8eZ.15@gated-at.bofh.it>
     [not found]                     ` <udPF.BD.11@gated-at.bofh.it>
     [not found]                       ` <3F5F37CD.6060808@softhome.net>
2003-09-10 15:28                         ` Luca Veraldi
2003-09-10 18:41 Manfred Spraul

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