Re: [PATCH] blacklist NCQ on Seagate Barracuda ST380817AS

From: Robert Hancock
Date: Sun Sep 30 2007 - 19:45:58 EST

Paolo Ornati wrote:
Hi, I think you forgot to blacklist this one :)

Seagate Barracuda ST380817AS has troubles with NCQ. For example,
unpacking a tarball on an XFS filesystem gives this:

ata1.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x2 frozen
ata1.00: cmd 61/40:00:29:a3:98/00:00:00:00:00/40 tag 0 cdb 0x0 data 32768 out
res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)

More info here:
Blacklist it!
Signed-off-by: Paolo Ornati <ornati@xxxxxxxxxxxxx>

diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 772be09..be289d0 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -3781,6 +3781,7 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = {
{ "Maxtor 7B250S0", "BANC1B70", ATA_HORKAGE_NONCQ, },
{ "Maxtor 7B300S0", "BANC1B70", ATA_HORKAGE_NONCQ },
{ "Maxtor 7V300F0", "VA111630", ATA_HORKAGE_NONCQ },
+ { "ST380817AS", "3.42", ATA_HORKAGE_NONCQ },
/* NCQ hard hangs device under heavier load, needs hard power cycle */

Are you sure this isn't just a bum drive? Looking at the SMART listing that was posted, looks like it's had some uncorrectable sector read errors in the event log..

Robert Hancock Saskatoon, SK, Canada
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