On 10-09-24 03:01 AM, Seed wrote:
On Fri, Sep 24, 2010 at 4:27 PM, Mark Lord<kernel@xxxxxxxxxxxx> wrote:
The bug seems to be in the libahci code somewhere.
ahci_qc_fill_rtf seems to be the function converting FIS to result_tf.
..
Yeah, that's as far as I got with it last night.
If you apply this patch (below), it makes the problem more "obvious",
though I still don't see exactly how that struct gets updated.
--- a/drivers/ata/libahci.c 2010-09-24 02:40:24.722887047 -0400
+++ b/drivers/ata/libahci.c 2010-09-24 09:10:21.761520099 -0400
@@ -1838,6 +1838,7 @@
d2h_fis += qc->dev->link->pmp * AHCI_RX_FIS_SZ;
ata_tf_from_fis(d2h_fis, &qc->result_tf);
+ memset(d2h_fis, 0xfd, AHCI_RX_FIS_SZ);
return true;
}
--
To unsubscribe from this list: send the line "unsubscribe linux-ide" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
