Hi Dave,
From: Dave Howorth [mailto:dhoworth@mrc-lmb.cam.ac.uk]
[ 1751.292702] ata1.00: exception Emask 0x10 SAct 0x0 SErr 0x4010000 action 0xe frozen [ 1751.292706] ata1.00: irq_stat 0x00400040, connection status changed [ 1751.292710] ata1: SError: { PHYRdyChg DevExch } [ 1751.292712] ata1.00: failed command: FLUSH CACHE EXT [ 1751.292719] ata1.00: cmd ea/00:00:00:00:00/00:00:00:00:00/a0 tag 0 [ 1751.292720] res 40/00:04:83:02:ee/00:00:02:00:00/40 Emask 0x10 (ATA bus error) [ 1751.292723] ata1.00: status: { DRDY } [ 1751.292728] ata1: hard resetting link [ 1756.044876] ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300) [ 1756.047118] ata1.00: configured for UDMA/100 [ 1756.047122] ata1.00: retrying FLUSH 0xea Emask 0x10 [ 1756.047250] ata1: EH complete
(1) Extract the SMART log from the drive just after the problem occurs to see what it thinks has happened.
In the log if found: Mar 10 11:38:26 rt-z9857 smartd[4761]: Device: /dev/sda [SAT], SMART Prefailure Attribute: 7 Seek_Error_Rate changed from 200 to 100 The output from smartctl after the problem appeared in the log. (I triggered the issue with a large kiwi build) rt-z9857:~ # smartctl -a -d ata /dev/sda smartctl 5.39.1 2010-01-28 r3054 [i686-pc-linux-gnu] (openSUSE RPM) Copyright (C) 2002-10 by Bruce Allen, http://smartmontools.sourceforge.net === START OF INFORMATION SECTION === Model Family: Western Digital Caviar Blue Serial ATA family Device Model: WDC WD3200AAJS-60Z0A0 Serial Number: WD-WCAV2S489213 Firmware Version: 03.03E03 User Capacity: 320.072.933.376 bytes Device is: In smartctl database [for details use: -P show] ATA Version is: 8 ATA Standard is: Exact ATA specification draft version not indicated Local Time is: Thu Mar 10 11:09:33 2011 CET 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 General SMART Values: Offline data collection status: (0x84) Offline data collection activity was suspended by an interrupting command from host. 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: (5760) 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. General Purpose Logging supported. Short self-test routine recommended polling time: ( 2) minutes. Extended self-test routine recommended polling time: ( 70) minutes. SCT capabilities: (0x303f) SCT Status supported. SCT Feature Control supported. SCT Data Table supported. SMART Attributes Data Structure revision number: 16 Vendor Specific SMART Attributes with Thresholds: ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE 1 Raw_Read_Error_Rate 0x002f 200 200 051 Pre-fail Always - 0 3 Spin_Up_Time 0x0027 162 133 021 Pre-fail Always - 2900 4 Start_Stop_Count 0x0032 100 100 000 Old_age Always - 117 5 Reallocated_Sector_Ct 0x0033 200 200 140 Pre-fail Always - 0 7 Seek_Error_Rate 0x002f 200 200 051 Pre-fail Always - 0 9 Power_On_Hours 0x0032 099 099 000 Old_age Always - 929 10 Spin_Retry_Count 0x0033 100 100 051 Pre-fail Always - 0 11 Calibration_Retry_Count 0x0032 100 100 000 Old_age Always - 0 12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 115 184 End-to-End_Error 0x0033 100 100 097 Pre-fail Always - 0 187 Reported_Uncorrect 0x0032 100 100 000 Old_age Always - 0 188 Command_Timeout 0x0032 100 100 000 Old_age Always - 0 190 Airflow_Temperature_Cel 0x0022 063 048 040 Old_age Always - 37 192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always - 36 193 Load_Cycle_Count 0x0032 200 200 000 Old_age Always - 117 196 Reallocated_Event_Count 0x0032 200 200 000 Old_age Always - 0 197 Current_Pending_Sector 0x0032 200 200 000 Old_age Always - 0 198 Offline_Uncorrectable 0x0030 100 253 000 Old_age Offline - 0 199 UDMA_CRC_Error_Count 0x0032 200 200 000 Old_age Always - 0 200 Multi_Zone_Error_Rate 0x0008 100 253 000 Old_age Offline - 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 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. I am running some further smart tests now.
(2) Try a recent kernel on an affected machine (e.g. either install opensuse Kernel:STABLE or just run Knoppix) and see if it cures the problem. Then you would have both a workaround and a strategy to isolate the problem.
Also, how does the hardware of the affected machines differ from similar machines where the problem does not occur? Disk type or number of disks? Motherboard?
The number of disks is always one. The other machines (aboout 20) are very different e.g. Fujitsu-Siemens MB instead of HP. The problem definetly correlates with the Hardware setup. Best regards Martin Konold Robert Bosch GmbH Automotive Electronics (RtP2/TEF72) Postfach 13 42 72703 Reutlingen GERMANY www.bosch.com external.martin.konold@de.bosch.com Sitz: Stuttgart, Registergericht: Amtsgericht Stuttgart, HRB 14000; Aufsichtsratsvorsitzender: Hermann Scholl; Geschäftsführung: Franz Fehrenbach, Siegfried Dais; Bernd Bohr, Rudolf Colm, Volkmar Denner, Wolfgang Malchow, Peter Marks, Peter Tyroller; Stefan Asenkerschbaumer, Uwe Raschke, Wolf-Henning Scheider -- To unsubscribe, e-mail: opensuse-kernel+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-kernel+help@opensuse.org