Date: Wed, 9 Oct 2002 21:52:34 +0200 From: Bernd Walter <ticso@cicely8.cicely.de> To: Poul-Henning Kamp <phk@critter.freebsd.dk> Cc: ticso@cicely.de, cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/boot/common ufsread.c Message-ID: <20021009195233.GQ17920@cicely8.cicely.de> In-Reply-To: <11046.1034186034@critter.freebsd.dk> References: <20021009174457.GP17920@cicely8.cicely.de> <11046.1034186034@critter.freebsd.dk>
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On Wed, Oct 09, 2002 at 07:53:54PM +0200, Poul-Henning Kamp wrote: > In message <20021009174457.GP17920@cicely8.cicely.de>, Bernd Walter writes: > >On Tue, Oct 08, 2002 at 08:46:45AM -0700, Poul-Henning Kamp wrote: > >> phk 2002/10/08 08:46:45 PDT > >> > >> Modified files: > >> sys/boot/common ufsread.c > >> Log: > >> It seems that the only problem with UFS2 booting on i386 is the 64bit > >> divide/remainder calls. For reasons not resolved, compiling the > >> relevant routines from libkern into boot2 results in stack corruption. > >> > >> Do the simple thing: Don't use 64bit divide/remainder operations. > >> > >> Sponsored by: DARPA & NAI Labs > > > >Are there any known show stoppers to try booting an UFS2 partition > >on alpha? > > Not that I know of. I don't know how the bootcode arrangement is > on alpha, much less what size the UFS2 code results in. I pressume > you could give your 'a' partition a start of something like 64k if > it larger than the default space, whatever that is. The original UFS1+2 boot code did boot UFS1. If it's not much bigger than before it should still fit. I'll have to do a buildworld before I can try to boot an UFS2 partition and recheck that it still boots an UFS1 partition. -- B.Walter COSMO-Project http://www.cosmo-project.de ticso@cicely.de Usergroup info@cosmo-project.de To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-all" in the body of the message
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