Re: Linux 2.4.21-pre1 IDE

From: Alan Cox (
Date: Thu Dec 12 2002 - 08:10:48 EST

On Thu, 2002-12-12 at 01:35, Erik Andersen wrote:
> hda: DMA disabled
> ^^^^^^^^^^^^^^^^^
> What's up with this? For each drive in my system it claims it
> has disabled DMA. But hdparm later reports that DMA is in fact
> enabled. In fact, later on the kernel ever reports the drive
> as being in UDMA 100 mode... I think these "DMA disabled"
> messages are bogus.

Cosmetic and known. It in fact turns DMA back on - quietly

> ide2 at 0x1800-0x1807,0xac02 on irq 11
> hda: host protected area => 1
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> hda: 160836480 sectors (82348 MB) w/1863KiB Cache, CHS=10011/255/63, UDMA(100)
> Now we see the funky "host protected area => 1" message. As
> discussed earlier with Andre, this message should be removed from
> the kernel. The message as written implies that the driv

Before 2.4.21 agreed

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

This archive was generated by hypermail 2b29 : Sun Dec 15 2002 - 22:00:24 EST