From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dale Larson Date: Tue, 15 Sep 2009 12:55:14 +0000 Subject: Re: User mode address error problems on 7763 Message-Id: <6e6aa1a80909150555n77509af4qeab720883a7e9c44@mail.gmail.com> List-Id: References: <6e6aa1a80909111106l6dbcfccag4e9e7a3abb922688@mail.gmail.com> In-Reply-To: <6e6aa1a80909111106l6dbcfccag4e9e7a3abb922688@mail.gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-sh@vger.kernel.org > I assumed SH7763 was an SH-X2 based core, but it turns out it is a > first-generation SH-4A, in which case it does not implement the extended > mode TLB. So the next available page size above 4k is 64k. I wasn't aware > there was anyone still running first generation SH-4A, I'll have to dust > some of mine off to see if I can reproduce your issues. We're finally replacing our 7760 (yep, you heard right) based product with the 7763. While you're dusting your's off we'll just be putting polish on it. ;-) > page size. That will bring up a menu where you can cycle through the > available page sizes. I don't recommend 1MB for a system page size, as it > tends to interact badly with some of the slab allocators. 64k will give > you an idea of whether there are indeed any aliasing bugs lurking about. I'll try that. Thanks!