While looking at an eSATA connected external disk with
a medium error, this sense data appeared:
READ cdb: 28 00 96 4a 7a d1 00 00 01 00
duration=2816 ms
READ: Descriptor format, current; Sense key: Medium Error
Additional sense: Unrecovered read error - auto reallocate failed
Descriptor type: Information
0x00000000964a7ad1
Raw sense data (in hex):
72 03 11 04 00 00 00 0c 00 0a 80 00 00 00 00 00
96 4a 7a d1
That is pretty close to what I was expecting to see. If anything
there is too much information. That "Unrecovered read error -
auto reallocate failed" [asc/asq: 11h/04h] should just be
"Unrecovered read error" [asc/asq: 11h/0h]. See sat2r09.pdf table
105 or sat3r00.pdf table 105.
The problem seems to be in libata's SATL code in the sense_table[]
in ata_to_sense_error() in libata-scsi.c . Looks like some other
entries in that sense_table need adjusting as well to align them
to SAT's table 105.
Also it is good to have a reference comment as sense_data[]
does in lk 2.6.35:
/* Based on the 3ware driver translation table */
but this would be better (if it did comply):
/* Based on table 105 in SAT-2 rev 9 */
Doug Gilbert
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