Date: Sat, 3 Jan 2004 14:09:30 +0100 From: Harald Schmalzbauer <h@schmalzbauer.de> To: Soren Schmidt <sos@spider.deepcore.dk> Cc: current@FreeBSD.ORG Subject: atapi_dma sysctl [Was: Re: 5.2RC heavily crashed by kaudiokreator] Message-ID: <200401031409.35803@harrymail> In-Reply-To: <200312281914.10295@harrymail> References: <200312281710.hBSHAUjL045292@spider.deepcore.dk> <200312281914.10295@harrymail>
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[-- Attachment #1 --] On Sunday 28 December 2003 19:14, Harald Schmalzbauer wrote: > On Sunday 28 December 2003 18:10, Soren Schmidt wrote: > > It seems Harald Schmalzbauer wrote: > > > And while I'm here I'd like to emhasize once again that > > > hw.ata.atapi_dma is not working. Although the sysctl reports it to be > > > 1, "atacontrol mode" and also dmesg while booting telling me that it's > > > POI4. > > > After "atacontrol mode 1 udma33 udma33" it's reported to be udma33. > > > So the line hw.ata.atapi_dma="1" in /boot/loader.conf is useless (I > > > have checked that when I abort autoboot it really is set before > > > booting) I posted this several times but never got an answer. Perhaps > > > this should be solved for 5.2-RELESE > > > > Hmm.. > > > > /boot/loader.conf: > > hw.ata.atapi_dma=1 > > > > dmesg: > > ... > > acd0: CDRW <QSI CD-RW/DVD-ROM SBW-242> at ata0-master UDMA33 > > > > Methinks it works nicely... > > Well, not at my machine (i815) > My /boot/loader.conf also shows hw.ata.atapi_dma="1" > but dmesg shows PIO4. http://www.schmalzbauer.de/netz/dmesg.cale > > Can't tell you more, sorry, Hi Søren, since christmas I have a new DVD-burner so I replaced my old CD-Drive and I found out that the hw.ata.atapi_dma Problem has nothing todo with the chipset but with the drive! The DVD-burner (LiteOn LDW-401S) is in UDMA33 when booting with the sysctle set to 1, also another DVD-Drive I tested (Teac DV-516E) is behaving as expected. Just my Sony CDU4811 was missbehaving. Perhaps this gives you an idea why/how this problem can exist (remember that it was possible to set the old drive to wdma2 with atacontrol mode!) Best regards, -Harry > > -Harry > > > -Søren [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.3 (FreeBSD) iD8DBQA/9r8PBylq0S4AzzwRAv38AJ9VLVj5fwRpSXRmqHjvpEqxv/DyLQCfd+bd PTPUoKDcuEfBa55jhFEblis= =kDW9 -----END PGP SIGNATURE-----
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