svn commit: r184135 - head/sys/dev/ata
jhb at freebsd.org
Wed Oct 22 16:07:56 UTC 2008
On Wednesday 22 October 2008 05:43:59 am Alexander Leidinger wrote:
> Quoting John Baldwin <jhb at freebsd.org> (from Tue, 21 Oct 2008
> >> John Baldwin wrote:
> >> > --- head/sys/dev/ata/ata-dma.c Tue Oct 21 18:50:52 2008 (r184134)
> >> > +++ head/sys/dev/ata/ata-dma.c Tue Oct 21 18:51:55 2008 (r184135)
> >> > @@ -78,7 +78,7 @@ ata_dmainit(device_t dev)
> >> > ch->dma.unload = ata_dmaunload;
> >> > ch->dma.alignment = 2;
> >> > ch->dma.boundary = 65536;
> >> > - ch->dma.segsize = 63536;
> >> > + ch->dma.segsize = 65536;
> > This was only in HEAD though since the SATA port multiplier changes.
> Can this be the reason for "acd0: FAILURE - non aligned DMA transfer
> attempted" messages when trying to play a DVD with xine?
I don't think so as that printf is in the ATA code before it does a
bus_dmamap_load(), and this bug just caused busdma to split up some ATA DMA
requests into more scatter/gather entries than truly necessary.
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