From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <3C9A1D3B.1587502F@lvl7.com> Date: Thu, 21 Mar 2002 12:49:47 -0500 From: Neil Horman MIME-Version: 1.0 To: Dan Malek Cc: "linuxppc-embedded@lists.linuxppc.org" Subject: Re: Question regarding the clear_page function References: <3C99D513.5740FDAF@lvl7.com> <3C9A13B9.1060008@embeddededge.com> Content-Type: text/plain; charset=us-ascii Sender: owner-linuxppc-embedded@lists.linuxppc.org List-Id: got it. Thanks Dan! Neil Dan Malek wrote: > > Neil Horman wrote: > > > ..... My question is, why is this not the case for the > > 8XX series as well? > > The behavior of this instruction during faults and exceptions has often > been incorrect and the different silicon revisions behave differently. > Rather than track all of the different silicon variants, install and > test all of the patches, it is easier to just not use it. > > > .... I'm asking because I'm testing a modifed kernel in which > > we use the dcbz instruction rather than 4 stores, and we curious as to what > > consequences I might expect. > > You are probably experiencing them :-). > > -- Dan > ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/