Date: Sun, 1 Apr 2018 01:05:57 +0200 From: Dimitry Andric <dim@FreeBSD.org> To: Bruce Evans <brde@optusnet.com.au> Cc: Konstantin Belousov <kostikbel@gmail.com>, current@freebsd.org, amd64@freebsd.org, bde@freebsd.org Subject: Re: i386 4/4 change Message-ID: <3FAD36FD-FA90-49F6-9141-B9CCCCA2BF00@FreeBSD.org> In-Reply-To: <20180401004833.L3296@besplex.bde.org> References: <20180331102901.GN1774@kib.kiev.ua> <20180401004833.L3296@besplex.bde.org>
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--Apple-Mail=_FEF4CFF3-A8E3-4C92-9CB5-9B04D7FD34B3 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=us-ascii On 31 Mar 2018, at 17:57, Bruce Evans <brde@optusnet.com.au> wrote: > > On Sat, 31 Mar 2018, Konstantin Belousov wrote: > >> the change to provide full 4G of address space for both kernel and >> user on i386 is ready to land. The motivation for the work was to both >> mitigate Meltdown on i386, and to give more breazing space for still >> used 32bit architecture. The patch was tested by Peter Holm, and I am >> satisfied with the code. >> >> If you use i386 with HEAD, I recommend you to apply the patch from >> https://reviews.freebsd.org/D14633 >> and report any regressions before the commit, not after. Unless >> a significant issue is reported, I plan to commit the change somewhere >> at Wed/Thu next week. >> >> Also I welcome patch comments and reviews. > > It crashes at boot time in getmemsize() unless booted with loader which > I don't want to use. For me, it at least compiles and boots OK, but I'm one of those crazy people who use the default boot loader. ;) I haven't yet run any performance tests, I'll try building world and a few large ports tomorrow. General operation from the command line does not feel "sluggish" in any way, however. -Dimitry --Apple-Mail=_FEF4CFF3-A8E3-4C92-9CB5-9B04D7FD34B3 Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename=signature.asc Content-Type: application/pgp-signature; name=signature.asc Content-Description: Message signed with OpenPGP -----BEGIN PGP SIGNATURE----- Version: GnuPG/MacGPG2 v2.2 iF0EARECAB0WIQR6tGLSzjX8bUI5T82wXqMKLiCWowUCWsAUVQAKCRCwXqMKLiCW o98sAKCDkLWdzL8NVaBN8mYfJAtBViO+lgCg/53fGIcQd2gJ7rA6b/pxf8X50K4= =P8fD -----END PGP SIGNATURE----- --Apple-Mail=_FEF4CFF3-A8E3-4C92-9CB5-9B04D7FD34B3--
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