Date: Wed, 27 Aug 2003 19:14:44 -0400 From: Anish Mistry <mistry.7@osu.edu> To: freebsd-current@freebsd.org Subject: Re: ATAng no PIO fallback? Message-ID: <200308271914.59403.mistry.7@osu.edu> In-Reply-To: <200308262227.46391.mistry.7@osu.edu> References: <200308262227.46391.mistry.7@osu.edu>
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[-- Attachment #1 --] On Tuesday 26 August 2003 10:27 pm, Anish Mistry wrote: > After removing atapicam from my kernel, so no panics on boot I decided to see > it DMA was fixed for my CD/DVD combo drive. I changed the > hw.ata.atapi_dma="0" > to hw.ata.atapi_dma="1" in my /boot/loader.conf. After a reboot I tried to > access my cdrom drive, and got the following error messages, which is very > similar to the messages when trying to dma before ATAng: > Aug 26 22:09:34 littleguy kernel: acd0: WARNING - READ_CD recovered from > missing interrupt > Aug 26 22:09:34 littleguy kernel: acd0: WARNING - READ_CD UDMA ICRC error > (retrying request) > > The problem is that before with DMA enabled it would try dma a few times fail, > and then fall back to PIO, whcih though annoying still left the drive in a > useable condition. Where as now the drive just stays stuck and unusable. > > ..... Anyone thinking about looking into this? I'll just submit a PR, in a day or 2 if there is no resposne. Thanks, -- Anish Mistry [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.2 (FreeBSD) iD8DBQA/TTtzxqA5ziudZT0RAqfVAJ9W7bkc0ymtKDpu6FGY6Gq1YrAskACgtIt9 12n8ddC5630nBX+QZNqZdP0= =c9IK -----END PGP SIGNATURE-----
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