Date: Thu, 10 Oct 2019 19:35:22 +0900 (JST) From: Mori Hiroki <yamori813@yahoo.co.jp> To: Warner Losh <imp@bsdimp.com>, "freebsd-arch@freebsd.org" <freebsd-arch@freebsd.org>, "freebsd-arm@freebsd.org" <freebsd-arm@freebsd.org> Subject: Re: firm date: armv5 support removal scheduled for 2019-12-31 Message-ID: <1818196815.3441463.1570703722086.JavaMail.yahoo@jws700103.mail.ssk.yahoo.co.jp> In-Reply-To: <CANCZdfoYJ342=Ej_Ha39JMHwZhaeyPn2YfW9mzYR%2BGss58N6nA@mail.gmail.com> References: <CANCZdfoYJ342=Ej_Ha39JMHwZhaeyPn2YfW9mzYR%2BGss58N6nA@mail.gmail.com>
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Hi I have very angry. Because of this. One is Maverl soc is not right performance on FreeBSD now. Maverl FreeBSD is 10-30 times slow from Linux. I think armv5t support is not complete on FreeBSD. You say armv5t pmap have bug. But my RT1310(armv5t) work well half of year. I try ldd on armv5t one month ago. That is support for armv4 because of that don't know armv4t instruction by default. Hiroki Mori ----- Original Message ----- > From: Warner Losh <imp@bsdimp.com> > To: "freebsd-arch@freebsd.org" <freebsd-arch@freebsd.org>; "freebsd-arm@freebsd.org" <freebsd-arm@freebsd.org> > Cc: > Date: 2019/10/10, Thu 06:40 > Subject: firm date: armv5 support removal scheduled for 2019-12-31 > >G reetings, > > There's been much talk of removing armv5 support from FreeBSD in FreeBSD > 13. This talk has been ongoing since before 12 was branched among the key > arm developers. The compromise for the FreeBSD 12 was to have one final > FreeBSD armv5 release for a few straggling users that needed (or think they > needed) this release and it would be removed before FreeBSD 13. > > The reason to remove this is due to the increased burden armv5 has > presented on the system. We have a separate pmap for v5 which has known or > suspected bugs relating to unaligned I/O. No developers have the armv5 > boards in service anymore. They have ceased being relevant to FreeBSD's > success with the plethera of armv7 boards that are on the market. No new > armv5 boards have been made in a long time. The FreeBSD project hasn't > produce armv5 binaries for 12.x at all (the binaries produced earlier could > not have possibly booted, though the userland binaries worked if you could > otherwise install the system). Finally, llvm's lld doesn't support > armv5. > It would ease integration if we didn't have to worry about a fallback for > armv5. It would be one fewer dependency on the old binutils toolchain in > the tree. > > So, taking all these things together, the time has come to schedule removal > of armv5 support from FreeBSD. The end of the year seems like a good date > to select for planning this removal, getting whatever notices should be put > into place and warning people about the next release in the most formal way > possible (more informal warnings have been going on for over a year, > starting with armv4 support removal in 12). > > I'm posting this now to gather feedback and, if necessary, create a > checklist of things to do before removal. > > Warner > _______________________________________________ > freebsd-arm@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-arm > To unsubscribe, send any mail to "freebsd-arm-unsubscribe@freebsd.org" >
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