From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from gate.crashing.org (gate.crashing.org [63.228.1.57]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 7E4AEDE143 for ; Mon, 25 May 2009 14:35:08 +1000 (EST) Subject: Re: can't flush tlb on e500 From: Benjamin Herrenschmidt To: Hideo Saito In-Reply-To: <20090525.103334.68564567.saito@densan.co.jp> References: <20090525.103334.68564567.saito@densan.co.jp> Content-Type: text/plain Date: Mon, 25 May 2009 14:20:22 +1000 Message-Id: <1243225222.24376.21.camel@pasglop> Mime-Version: 1.0 Cc: linuxppc-dev@ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Mon, 2009-05-25 at 10:33 +0900, Hideo Saito wrote: > > This report came from LKML, although I should post it here first, > the report said that there is a regression in linux-2.6.29 as to > flushing a TLB entry that was going to be re-used when a context > overflowed from the TLB. > > On Fri, May 22, 2009 at 6:27 PM, Benjamin Herrenschmidt wrote: > > Have you verified that this change fixes your problem ? > > I tested using "hackbench 100" and it was done successfully on my > platform with e500(MPC8548). > > > > > Can you re-submit to linuxppc-dev@ozlabs.org mailing list, along > with > > proper changeset comment and signed-off-by: line ? > > I am sorry I don't know as to the proper changeset comment. > Well, that simply means a proper description of the bug and the fix :-) I'll cook up one. Cheers, Ben.