Date: Sun, 11 Jun 2017 22:41:43 -0600 From: Warner Losh <imp@bsdimp.com> To: Ronald Klop <ronald-lists@klop.ws> Cc: "freebsd-arm@freebsd.org" <freebsd-arm@freebsd.org> Subject: Re: Deorbiting armv4 and armv5 support Message-ID: <CANCZdfpKRvmi24uvVUCKhKwxvDJRiUoEP1rkh7XO0sExJm2kWA@mail.gmail.com> In-Reply-To: <op.y1ood7ookndu52@53556c9c.cm-6-6b.dynamic.ziggo.nl> References: <CANCZdfqj5nKvrbNg6woNkCLXyuyozS=z%2B6KFoxkXN3HMv44%2BAw@mail.gmail.com> <op.y1ood7ookndu52@53556c9c.cm-6-6b.dynamic.ziggo.nl>
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On Sun, Jun 11, 2017 at 3:28 PM, Ronald Klop <ronald-lists@klop.ws> wrote: > On Thu, 08 Jun 2017 22:22:51 +0200, Warner Losh <imp@bsdimp.com> wrote: > > Greetings, >> >> The pmap in armv4/5 has been broken for years at this point. It basically >> works, but has issues with unaligned buffers. Since these have remained >> unfixed for a long time, and most of the main ARM developers have given up >> trying to fix it, I think it would be best to retire the support rather >> than waste people's time that seem to be working only to discover after a >> lot of effort that it's busted. >> >> Since the consensus at the FreeBSD developer's summit appeared to be >> 'let's >> let it go'. It would remove the TARGET_ARCH arm and armeb. armv6 would >> remain unaffected (though see a parallel thread). >> >> Warner >> > > What branches are you talking about? > I'm thinking only the -current branch. However, I'm thinking now that I'll write up something more formal (the FCP process) and start maybe a 3 month timeout. There's two leads on a fix, I'll be looking at one of them in the next few days. If one of these fixes is good, I'll merge it. The second one is a long shot, though... So, my current plan is that if it remains unfixed by, say Sept 1, 2017, I'll deorbit. I may adjust that date depending on the timing of the 12 branch, since I want to get this resolved before the branch... Warner
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