Date: Mon, 19 Mar 2001 17:06:33 -0800 (PST) From: John Baldwin <jhb@FreeBSD.org> To: Bruce Evans <bde@zeta.org.au> Cc: current@FreeBSD.org, Dag-Erling Smorgrav <des@ofug.org> Subject: RE: Here's another one for you... Message-ID: <XFMail.010319170633.jhb@FreeBSD.org> In-Reply-To: <Pine.BSF.4.21.0103201153510.40498-100000@besplex.bde.org>
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On 20-Mar-01 Bruce Evans wrote: > On Mon, 19 Mar 2001, John Baldwin wrote: > >> Hmmm. An eip of 0 is bad. This could be just another instance of the bzero >> bug just in another place. You probably want to change the code that >> actually >> sets *bzero to i586_bzero (and same for any other ops that use floating >> point). >> The code in question for this lies in i386/isa/npx.c. It seems we use the >> fp >> regs for copyin/copyout and bcopy as well. I would just change line 458 of >> npx.c to say '#ifdef I586_CPU_XXX' for now as your temporary patch (then you >> don't need to patch pmap_zero_page() anymore.) > > There is no need to change anything. Just disable the fp optimizations > using the npx flags. That works, too, but until i586_* are fixed they need to default to off, not to on. :) I'm not suggesting committing this, just suggesting a local hack for testing anyways. > Bruce -- John Baldwin <jhb@FreeBSD.org> -- http://www.FreeBSD.org/~jhb/ PGP Key: http://www.baldwin.cx/~john/pgpkey.asc "Power Users Use the Power to Serve!" - http://www.FreeBSD.org/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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