Date: Sat, 08 Nov 2008 12:29:31 +0200 From: Alexander Motin <mav@FreeBSD.org> To: Hans Petter Selasky <hselasky@FreeBSD.org> Cc: Perforce Change Reviews <perforce@FreeBSD.org> Subject: Re: PERFORCE change 152649 for review Message-ID: <49156A0B.4030506@FreeBSD.org> In-Reply-To: <200811080910.mA89AgTZ048172@repoman.freebsd.org> References: <200811080910.mA89AgTZ048172@repoman.freebsd.org>
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Hans Petter Selasky wrote: > http://perforce.freebsd.org/chv.cgi?CH=152649 > > Change 152649 by hselasky@hselasky_laptop001 on 2008/11/08 09:09:50 > > > Fix a serious BUSDMA bug: The initial virtual page offset is > not retained on the bounce pages, which is what the EHCI and > the OHCI expects. I'm sorry, but are you sure with this? If bounce page will have the same page offset as original data, then how bus_dma_tag_create()'s alignment parameter expected to work? What if data are misaligned, but hardware require alignment? -- Alexander Motin
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