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From: Zoltan Menyhart <Zoltan.Menyhart@bull.net>
To: linux-ia64@vger.kernel.org
Subject: Re: Fix race in the accessed/dirty bit handlers
Date: Fri, 10 Mar 2006 10:40:18 +0000	[thread overview]
Message-ID: <44115792.6080708@bull.net> (raw)
In-Reply-To: <Pine.LNX.4.64.0603071901420.2463@schroedinger.engr.sgi.com>

Christian Hildner wrote:
> Zoltan Menyhart schrieb:
> 
>> The only instruction I know of to synchronize with the "itc" mechanism is
>> the "srlz" instruction. 
> 
> 
> rfi implies srlz.i (and srlz.d) as well.

You are right as far as the user mode code is concerned.

Yet, we have not got any "rfi" in our

    insert TLB
    ;;
    re-read

sequence. Only a "srlz" can help.:

	itc.d	r25
	;;
	srlz.d
	ld8	r18 = [r17]

Thanks,

Zoltan

  parent reply	other threads:[~2006-03-10 10:40 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-03-08  3:05 Fix race in the accessed/dirty bit handlers Christoph Lameter
2006-03-08 10:48 ` Robin Holt
2006-03-08 15:33 ` Christoph Lameter
2006-03-08 21:59 ` Chen, Kenneth W
2006-03-08 22:04 ` Christoph Lameter
2006-03-08 22:25 ` Luck, Tony
2006-03-08 22:32 ` Christoph Lameter
2006-03-08 23:56 ` Luck, Tony
2006-03-09  0:21 ` Christoph Lameter
2006-03-09 13:35 ` Zoltan Menyhart
2006-03-09 16:23 ` Christoph Lameter
2006-03-09 18:09 ` Zoltan Menyhart
2006-03-09 18:27 ` Christoph Lameter
2006-03-09 18:33 ` David Mosberger-Tang
2006-03-09 19:44 ` Chen, Kenneth W
2006-03-10  9:47 ` Zoltan Menyhart
2006-03-10  9:54 ` Christian Hildner
2006-03-10 10:40 ` Zoltan Menyhart [this message]
2006-03-10 16:47 ` Luck, Tony
2006-03-10 17:11 ` Zoltan Menyhart
2006-03-10 17:22 ` Chen, Kenneth W
2006-03-10 17:28 ` Luck, Tony
2006-03-10 17:29 ` Chen, Kenneth W
2006-03-13  9:13 ` Zoltan Menyhart

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