Date: Wed, 05 Mar 2008 11:40:13 -0800 From: Sean Bruno <sbruno@miralink.com> To: freebsd-drivers@freebsd.org Subject: ICH9 based IDE speed negotiation error Message-ID: <47CEF71D.6060600@miralink.com>
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I have an IBM x3250M with a CF IDE flash device in the IDE controller socket instead of the CDROM. It appears that the ICH9 IDE chipset is negotiating to UDMA66 instead of UDMA33 on this board, and that is not the speed of my CF IDE device: http://www.transcendusa.com/Products/ModDetail.asp?ModNo=26&LangNo=0 The same device in three other motherboards (ICH7 and SiS181) don't seem to have the negotiation issue. This negotiation failure causes CRC errors writing to the disk: ad6: WARNING - WRITE_DMA UDMA ICRC error (retrying request) LBA=357735 ad6: WARNING - WRITE_DMA UDMA ICRC error (retrying request) LBA=359015 Setting the mode down to UDMA33 fixes the issue.(atacontrol mode ad6 UDMA33). Seanhelp
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