[2.6.28-rc] Sata soft reset filling log

From: Justin Madru
Date: Fri Dec 12 2008 - 21:08:22 EST

I've been testing .28 (currently -rc8) and I've noticed in the logs a massive amount of the following.
I can confirm that the messages doesn't appear when booting into a .27 kernel.

ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
ata2.00: ST_FIRST: !(DRQ|ERR|DF)
ata2.00: cmd a0/00:00:00:00:00/00:00:00:00:00/a0 tag 0
cdb 1e 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
res 50/00:01:00:00:00/00:00:00:00:00/a0 Emask 0x2 (HSM violation)
ata2.00: status: { DRDY }
ata2: soft resetting link
ata2.00: configured for UDMA/33
ata2: EH complete

I get this block of messages about every 20 seconds for as long as I'm booted into a .28 kernel.
It seems that the sata link is being soft reseted about every _20_ secs.
My drive is a sata drive that should be using UDMA/133 (right?),
but the "error" message says configuring for UDMA/33.
Does this mean that my drive is running at a slower speed?
Should I be worried about the .28 kernel corrupting my hardware? Is this a known issue?
How can I stop it from filling my logs!

Some information about my computer:

$ lspci
00:00.0 Host bridge: Intel Corporation Mobile 945GM/PM/GMS, 943/940GML and 945GT Express Memory Controller Hub (rev 03)
00:02.0 VGA compatible controller: Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller (rev 03)
00:02.1 Display controller: Intel Corporation Mobile 945GM/GMS/GME, 943/940GML Express Integrated Graphics Controller (rev 03)
00:1b.0 Audio device: Intel Corporation 82801G (ICH7 Family) High Definition Audio Controller (rev 01)
00:1c.0 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 1 (rev 01)
00:1c.3 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 4 (rev 01)
00:1d.0 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #1 (rev 01)
00:1d.1 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #2 (rev 01)
00:1d.2 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #3 (rev 01)
00:1d.3 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #4 (rev 01)
00:1d.7 USB Controller: Intel Corporation 82801G (ICH7 Family) USB2 EHCI Controller (rev 01)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev e1)
00:1f.0 ISA bridge: Intel Corporation 82801GBM (ICH7-M) LPC Interface Bridge (rev 01)
00:1f.2 IDE interface: Intel Corporation 82801GBM/GHM (ICH7 Family) SATA IDE Controller (rev 01)
00:1f.3 SMBus: Intel Corporation 82801G (ICH7 Family) SMBus Controller (rev 01)
03:00.0 Ethernet controller: Broadcom Corporation BCM4401-B0 100Base-TX (rev 02)
03:01.0 FireWire (IEEE 1394): Ricoh Co Ltd R5C832 IEEE 1394 Controller
03:01.1 SD Host controller: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter (rev 19)
03:01.2 System peripheral: Ricoh Co Ltd R5C843 MMC Host Controller (rev 0a)
03:01.3 System peripheral: Ricoh Co Ltd R5C592 Memory Stick Bus Host Adapter (rev 05)
03:01.4 System peripheral: Ricoh Co Ltd xD-Picture Card Controller (rev ff)
0b:00.0 Network controller: Intel Corporation PRO/Wireless 3945ABG [Golan] Network Connection (rev 02)

$ hdparm -I /dev/sda
/dev/sda:
ATA device, with non-removable media
Model Number: ST980811AS
Serial Number: 5LY6J1M0
Firmware Revision: 3.CDD
Standards:
Supported: 7 6 5 4
Likely used: 8
Configuration:
Logical max current
cylinders 16383 16383
heads 16 16
sectors/track 63 63
--
CHS current addressable sectors: 16514064
LBA user addressable sectors: 156301488
LBA48 user addressable sectors: 156301488
device size with M = 1024*1024: 76319 MBytes
device size with M = 1000*1000: 80026 MBytes (80 GB)
Capabilities:
LBA, IORDY(can be disabled)
Queue depth: 32
Standby timer values: spec'd by Standard, no device specific minimum
R/W multiple sector transfer: Max = 16 Current = 8
Advanced power management level: 128
Recommended acoustic management value: 128, current value: 0
DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 udma5 *udma6
Cycle time: min=120ns recommended=120ns
PIO: pio0 pio1 pio2 pio3 pio4
Cycle time: no flow control=240ns IORDY flow control=120ns
Commands/features:
Enabled Supported:
* SMART feature set
Security Mode feature set
* Power Management feature set
* Write cache
* Look-ahead
* Host Protected Area feature set
* WRITE_BUFFER command
* READ_BUFFER command
* DOWNLOAD_MICROCODE
* Advanced Power Management feature set
SET_MAX security extension
Automatic Acoustic Management feature set
* 48-bit Address feature set
* Mandatory FLUSH_CACHE
* FLUSH_CACHE_EXT
* SMART error logging
* SMART self-test
* IDLE_IMMEDIATE with UNLOAD
* SATA-I signaling speed (1.5Gb/s)
* Native Command Queueing (NCQ)
* Phy event counters
Device-initiated interface power management
* Software settings preservation
* SMART Command Transport (SCT) feature set
Security:
Master password revision code = 65534
supported
not enabled
not locked
frozen
not expired: security count
not supported: enhanced erase
Checksum: correct

$ hdparm -fF /dev/sda; hdparm -tT /dev/sda
/dev/sda:
Timing cached reads: 1650 MB in 2.00 seconds = 825.06 MB/sec
Timing buffered disk reads: 130 MB in 3.04 seconds = 42.79 MB/sec

$ smartctl -a /dev/sda
smartctl version 5.38 [i686-pc-linux-gnu] Copyright (C) 2002-8 Bruce Allen
Home page is http://smartmontools.sourceforge.net/

=== START OF INFORMATION SECTION ===
Model Family: Seagate Momentus 5400.3
Device Model: ST980811AS
Serial Number: 5LY6J1M0
Firmware Version: 3.CDD
User Capacity: 80,026,361,856 bytes
Device is: In smartctl database [for details use: -P show]
ATA Version is: 7
ATA Standard is: Exact ATA specification draft version not indicated
Local Time is: Fri Dec 12 17:05:06 2008 PST
SMART support is: Available - device has SMART capability.
SMART support is: Enabled

=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED
See vendor-specific Attribute list for marginal Attributes.

General SMART Values:
Offline data collection status: (0x82) Offline data collection activity
was completed without error.
Auto Offline Data Collection: Enabled.
Self-test execution status: ( 0) The previous self-test routine completed
without error or no self-test has ever
been run.
Total time to complete Offline
data collection: ( 426) seconds.
Offline data collection
capabilities: (0x5b) SMART execute Offline immediate.
Auto Offline data collection on/off support.
Suspend Offline collection upon new
command.
Offline surface scan supported.
Self-test supported.
No Conveyance Self-test supported.
Selective Self-test supported.
SMART capabilities: (0x0003) Saves SMART data before entering
power-saving mode.
Supports SMART auto save timer.
Error logging capability: (0x01) Error logging supported.
No General Purpose Logging support.
Short self-test routine
recommended polling time: ( 2) minutes.
Extended self-test routine
recommended polling time: ( 84) minutes.
SCT capabilities: (0x0001) SCT Status supported.

SMART Attributes Data Structure revision number: 10
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
1 Raw_Read_Error_Rate 0x000f 100 253 006 Pre-fail Always - 0
3 Spin_Up_Time 0x0003 099 099 085 Pre-fail Always - 0
4 Start_Stop_Count 0x0032 099 099 020 Old_age Always - 1142
5 Reallocated_Sector_Ct 0x0033 100 100 036 Pre-fail Always - 0
7 Seek_Error_Rate 0x000f 079 060 030 Pre-fail Always - 88807308
9 Power_On_Hours 0x0032 097 097 000 Old_age Always - 3420
10 Spin_Retry_Count 0x0013 100 100 034 Pre-fail Always - 0
12 Power_Cycle_Count 0x0032 099 099 020 Old_age Always - 1180
187 Reported_Uncorrect 0x0032 100 100 000 Old_age Always - 0
189 High_Fly_Writes 0x003a 100 100 000 Old_age Always - 0
190 Airflow_Temperature_Cel 0x0022 050 042 045 Old_age Always In_the_past 50 (0 102 52 25)
192 Power-Off_Retract_Count 0x0032 100 100 000 Old_age Always - 1076
193 Load_Cycle_Count 0x0032 001 001 000 Old_age Always - 241664
194 Temperature_Celsius 0x0022 050 058 000 Old_age Always - 50 (0 19 0 0)
195 Hardware_ECC_Recovered 0x001a 061 060 000 Old_age Always - 195105625
197 Current_Pending_Sector 0x0012 100 100 000 Old_age Always - 0
198 Offline_Uncorrectable 0x0010 100 100 000 Old_age Offline - 0
199 UDMA_CRC_Error_Count 0x003e 200 200 000 Old_age Always - 0
200 Multi_Zone_Error_Rate 0x0000 100 253 000 Old_age Offline - 0
202 TA_Increase_Count 0x0032 100 253 000 Old_age Always - 0

SMART Error Log Version: 1
No Errors Logged

SMART Self-test log structure revision number 1
Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error
# 1 Extended offline Completed without error 00% 3257 -
# 2 Short offline Completed without error 00% 3256 -
# 3 Short offline Completed without error 00% 2659 -
# 4 Short offline Completed without error 00% 2659 -
# 5 Short offline Completed without error 00% 1657 -
# 6 Short offline Completed without error 00% 1621 -
# 7 Short offline Completed without error 00% 2 -
# 8 Short offline Completed without error 00% 2 -
# 9 Short offline Completed without error 00% 1 -
#10 Short offline Completed without error 00% 0 -

SMART Selective self-test log data structure revision number 1
SPAN MIN_LBA MAX_LBA CURRENT_TEST_STATUS
1 0 0 Not_testing
2 0 0 Not_testing
3 0 0 Not_testing
4 0 0 Not_testing
5 0 0 Not_testing
Selective self-test flags (0x0):
After scanning selected spans, do NOT read-scan remainder of disk.
If Selective self-test is pending on power-up, resume after 0 minute delay.

Justin Madru
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