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Date: Mon, 9 Apr 2007 03:53:04 +0400
From: "Andrew Pantyukhin" <infofarmer@FreeBSD.org>
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Subject: ata regression
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After today's update ata(4) is unusable on both my
desktop (i386, via chipset) and my laptop (amd64,
ati chipset).

Everything works fine with kernel from 1 April.

VIA box says:
ata0: reset tp1 mask=03 ostat0=58 ostat1=00
ata0: stat0=0x80 err=0x80 lsb=0x80 msb=0x80
...
ad0: setting PIO4 on 8237 chip
ad0: setting UDMA100 on 8237 chip
ata0: reinit done ..
ad0: FAILURE - WRITE_DMA time out LBA=8511
g_vfs_done():ad0s1a[WRITE(offset=4325376, length=2948)]error = 5
<delay>
<once again>

ATI says something similar, but drops to kgdb after the
first cycle.

Sorry, I have no time to provide more info right now.

Thanks!