Re: libATA error message doc

[Jeff Garzik <jeff@garzik.org>]

Mike Robak wrote:
> Does a doc exist that provides a detailed description of the different
> errors that could be produced by libata and its associated drivers?
> The libATA developer's guide provides a very good general description
> of the types of messages, but I'm looking for more detail.
>
> For example I got this error message last week:
>
> Sep 27 17:29:26 server kernel: ata2.00: exception Emask 0x0 SAct 0x0
> SErr 0x0 action 0x1
> Sep 27 17:29:26 server kernel: ata2.00: (irq_stat 0x40000001)
> Sep 27 17:29:26 server kernel: ata2.00: tag 0 cmd 0xb0 Emask 0x1 stat
> 0x51 err 0x4 (device error)
>
> I'd like to know what the following items means?
>
> (irq_stat 0x40000001)
> tag 0
> cmd 0xb0
> emask 0x1
> stat 0x51
> err 0x4

It's pretty much all defined in the ATA or controller specifications...

Well, except for emask, which is a libata-only invention.

	Jeff



-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/