Date: Thu, 11 Dec 1997 17:59:38 -0800 From: John-Mark Gurney <gurney_j@efn.org> To: Mike Smith <mike@smith.net.au> Cc: ETX-B-SL Martti Kuparinen <erakupa@kk.etx.ericsson.se>, freebsd-hackers@FreeBSD.ORG Subject: Re: panic: npxintr from nowhere Message-ID: <19971211175938.41550@hydrogen.nike.efn.org> In-Reply-To: <199712120143.MAA00288@word.smith.net.au>; from Mike Smith on Fri, Dec 12, 1997 at 12:13:18PM %2B1030 References: <19971211173046.63648@hydrogen.nike.efn.org> <199712120143.MAA00288@word.smith.net.au>
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Mike Smith scribbled this message on Dec 12: > > actually, now that someone else brought it up, any good way to call > > floating point routins from the kernel? if you do, and don't have > > any processes that have used floating point, will will get the above > > mentioned panic... > > Hmm, interesting. I would guess that this means that you shouldn't run > floating point code in the kernel. :) yeh... well, I was going to improve the fade screen saver so that it wouldn't turn everything to a dull grey... also, if I remeber correctly, there are only two places in the kernel that use floating point... one of them is in the Bt848 driver... > Think about it for a moment; to whom would you deliver a floating-point > exception? > > It probably fails because the FPU initialisation is lazy, and if you > haven't initialised it before you use it, you'll die screaming. is there a routine for the kernel code to use to initalize it? -- John-Mark Gurney Modem/FAX: +1 541 683 6954 Cu Networking Live in Peace, destroy Micro$oft, support free software, run FreeBSD
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