libATA error message doc

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To: <linux-kernel@...>
Date: Wednesday, October 3, 2007 - 1:39 pm

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


Can anybody help?

Thanks,
-Mike
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Messages in current thread:
libATA error message doc, Mike Robak, (Wed Oct 3, 1:39 pm)
Re: libATA error message doc, Alan Cox, (Wed Oct 3, 2:24 pm)
Re: libATA error message doc, Andi Kleen, (Fri Oct 5, 3:13 pm)
Re: libATA error message doc, Alan Cox, (Fri Oct 5, 4:51 pm)
Re: libATA error message doc, Jeff Garzik, (Wed Oct 3, 1:54 pm)