Date: Tue, 3 Jan 2006 07:36:58 +0100 From: guru@Sisis.de To: freebsd-questions@freebsd.org Subject: 6.0-R && DMA with Intel ICH6 UDMA100/SATA150 controller Message-ID: <20060103063657.GA1754@rebelion.Sisis.de>
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Hi, I've this configuration for the DVD device in my notebook: $ fgrep 'Jan 3' messages | egrep 'ata|acd0' Jan 3 07:05:23 rebelion kernel: atapci0: <Intel ICH6 UDMA100 controller> port 0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0x14c0-0x14cf at device 31.1 on pci0 Jan 3 07:05:23 rebelion kernel: ata0: <ATA channel 0> on atapci0 Jan 3 07:05:23 rebelion kernel: ata1: <ATA channel 1> on atapci0 Jan 3 07:05:23 rebelion kernel: atapci1: <Intel ICH6 SATA150 controller> port 0x14f0-0x14f7,0x14e4-0x14e7,0x14e8-0x14ef,0x14e0-0x14e3,0x14d0-0x14df mem 0xc8000c00-0xc8000fff irq 19 at device 31.2 on pci0 Jan 3 07:05:23 rebelion kernel: ata2: <ATA channel 0> on atapci1 Jan 3 07:05:23 rebelion kernel: ata3: <ATA channel 1> on atapci1 Jan 3 07:05:23 rebelion kernel: ata4: <ATA channel 2> on atapci1 Jan 3 07:05:23 rebelion kernel: ata5: <ATA channel 3> on atapci1 Jan 3 07:05:23 rebelion kernel: acd0: DVDR <MATSHITAUJ-841Db/1.00> at ata0-master UDMA33 Jan 3 07:05:23 rebelion kernel: ad4: 76319MB <Seagate ST98823AS 3.03> at ata2-master SATA150 and DMA is activated: $ sysctl -a | fgrep _dma hw.ata.ata_dma: 1 hw.ata.atapi_dma: 1 $ but playing a movie from DVD with mplayer gives these breaks and jumps as if DMA is not active; any hints? Thx matthias
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