ATA DMA timeouts

Martin nakal at
Wed Jun 1 09:58:52 PDT 2005

Am Mittwoch, den 01.06.2005, 13:57 +0100 schrieb Tony Byrne:

> M> Affected kernel version:
> M> FreeBSD 5.4-STABLE #0: Tue May 31 00:19:34 CEST 2005
> M> Last known working version:
> M> FreeBSD 5.4-STABLE #0: Mon May  9 00:50:46 CEST 2005
> This looks to be the same problem alright.  Can you confirm that the
> problem goes away when you revert to the earlier kernel?  Also, as a
> matter of interest what size HD is your ad0?

Yes. That's correct. Only the newer kernel is affected.
I'm working with the kernel from May 9th since yesterday afternoon,
no problems so far.

Here some details:

atapci0: <VIA 8235 UDMA133 controller> port 0xfc00
-0xfc0f,0x376,0x170-0x177,0x3f6,0x1f0-0x1f7 at device 17.1 on pci0
ata0: channel #0 on atapci0
ata1: channel #1 on atapci0
ad0: 114473MB <ST3120024A/3.33> [232581/16/63] at ata0-master UDMA100

# fdisk
******* Working on device /dev/ad0 *******
parameters extracted from in-core disklabel are:
cylinders=232581 heads=16 sectors/track=63 (1008 blks/cyl)

Figures below won't work with BIOS for partitions not in cyl 1
parameters to be used for BIOS calculations are:
cylinders=232581 heads=16 sectors/track=63 (1008 blks/cyl)


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