On Tue, Mar 18, 2008 at 01:09:20PM +0900, Tejun Heo wrote: > Denys Dmytriyenko wrote: > > Meanwhile my system was quite stable lately, except for a few times when it > > threw some exceptions below. Can you please help me interpret them and also > > point out to how I can do it myself in the future. Thanks in advance. > > > > Mar 8 02:09:49 [kernel] ata8: illegal qc_active transition (00000019->00000038) > > Hmmm... This is first. Which driver is it? It means that controller is > reporting that NCQ command tags which are not issued (or already > completed) are in-flight. Due to the way hdd reports NCQ command > completion, it's not possible for the drive to cause this. This gotta > be a bug on the host side (be it controller chip or more likely the > driver). The command tag in question is 5. Only 0, 3 and 4 were in flight. It is sata_sil24 on 2.6.23.9. If there were related fixes in the recent versions, I can retest it. > > Mar 8 03:19:33 [kernel] ata8: illegal qc_active transition (000000ff->000001f7) > > The same but problematic tag is 8. > > > Mar 14 23:51:43 [kernel] ata3: illegal qc_active transition (0000001b->0000002b) > > Ditto but with tag 5. > > > Mar 14 23:51:55 [kernel] ata3: failed to read log page 10h (errno=-2) > > Mar 14 23:51:55 [kernel] ata3.00: exception Emask 0x1 SAct 0x3f SErr 0x0 action 0x0 > > Mar 14 23:51:55 [kernel] ata3.00: irq_stat 0x00020002, device error via SDB FIS > > This one is different. The drive reported device error but the driver > couldn't get more information about the error (log page 10h contains > it). What does smartctl -a on the drive say? # smartctl -a /dev/sdc smartctl version 5.37 [i686-pc-linux-gnu] Copyright (C) 2002-6 Bruce Allen Home page is http://smartmontools.sourceforge.net/ === START OF INFORMATION SECTION === Model Family: Maxtor MaXLine Pro 500 family Device Model: Maxtor 7H500F0 Serial Number: H81DAX1H Firmware Version: HA431DN0 User Capacity: 500,107,862,016 bytes Device is: In smartctl database [for details use: -P show] ATA Version is: 7 ATA Standard is: ATA/ATAPI-7 T13 1532D revision 0 Local Time is: Tue Mar 18 00:40:28 2008 EDT 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: (0x80) Offline data collection activity was never started. Auto Offline Data Collection: Enabled. Self-test execution status: ( 32) The self-test routine was interrupted by the host with a hard or soft reset. Total time to complete Offline data collection: (9003) 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: ( 206) minutes. SMART Attributes Data Structure revision number: 32 Vendor Specific SMART Attributes with Thresholds: ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE 3 Spin_Up_Time 0x0027 169 168 063 Pre-fail Always - 16613 4 Start_Stop_Count 0x0032 249 249 000 Old_age Always - 8406 5 Reallocated_Sector_Ct 0x0033 253 253 063 Pre-fail Always - 0 7 Seek_Error_Rate 0x000a 253 252 000 Old_age Always - 0 8 Seek_Time_Performance 0x0027 251 241 187 Pre-fail Always - 33007 9 Power_On_Hours 0x0032 242 242 000 Old_age Always - 3941 10 Spin_Retry_Count 0x002b 253 252 157 Pre-fail Always - 0 11 Calibration_Retry_Count 0x002b 253 252 223 Pre-fail Always - 0 12 Power_Cycle_Count 0x0032 253 253 000 Old_age Always - 263 189 Unknown_Attribute 0x003a 100 100 000 Old_age Always - 0 190 Temperature_Celsius 0x0022 063 050 000 Old_age Always - 689700901 192 Power-Off_Retract_Count 0x0032 253 253 000 Old_age Always - 0 193 Load_Cycle_Count 0x0032 253 253 000 Old_age Always - 0 194 Temperature_Celsius 0x0032 039 253 000 Old_age Always - 37 195 Hardware_ECC_Recovered 0x000a 253 252 000 Old_age Always - 1912 196 Reallocated_Event_Count 0x0008 253 253 000 Old_age Offline - 0 197 Current_Pending_Sector 0x0008 253 253 000 Old_age Offline - 0 198 Offline_Uncorrectable 0x0008 253 253 000 Old_age Offline - 0 199 UDMA_CRC_Error_Count 0x0008 002 001 000 Old_age Offline - 798 200 Multi_Zone_Error_Rate 0x000a 253 252 000 Old_age Always - 0 201 Soft_Read_Error_Rate 0x000a 253 252 000 Old_age Always - 0 202 TA_Increase_Count 0x000a 253 252 000 Old_age Always - 0 203 Run_Out_Cancel 0x000b 253 252 180 Pre-fail Always - 0 204 Shock_Count_Write_Opern 0x000a 253 252 000 Old_age Always - 0 205 Shock_Rate_Write_Opern 0x000a 253 252 000 Old_age Always - 0 207 Spin_High_Current 0x002a 253 252 000 Old_age Always - 0 208 Spin_Buzz 0x002a 253 252 000 Old_age Always - 0 210 Unknown_Attribute 0x0032 253 252 000 Old_age Always - 0 211 Unknown_Attribute 0x0032 253 252 000 Old_age Always - 0 212 Unknown_Attribute 0x0032 253 252 000 Old_age Always - 0 SMART Error Log Version: 1 ATA Error Count: 42 (device log contains only the most recent five errors) CR = Command Register [HEX] FR = Features Register [HEX] SC = Sector Count Register [HEX] SN = Sector Number Register [HEX] CL = Cylinder Low Register [HEX] CH = Cylinder High Register [HEX] DH = Device/Head Register [HEX] DC = Device Command Register [HEX] ER = Error register [HEX] ST = Status register [HEX] Powered_Up_Time is measured from power on, and printed as DDd+hh:mm:SS.sss where DD=days, hh=hours, mm=minutes, SS=sec, and sss=millisec. It "wraps" after 49.710 days. Error 42 occurred at disk power-on lifetime: 3444 hours (143 days + 12 hours) When the command that caused the error occurred, the device was in an unknown state. After command completion occurred, registers were: ER ST SC SN CL CH DH -- -- -- -- -- -- -- 84 41 28 ff 46 5a 40 Commands leading to the command that caused the error were: CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name -- -- -- -- -- -- -- -- ---------------- -------------------- 60 08 28 ff 46 5a 40 00 2d+07:38:11.073 READ FPDMA QUEUED 60 08 28 ff 46 5a 40 00 2d+07:38:11.073 READ FPDMA QUEUED 60 08 28 ff 46 5a 40 00 2d+07:38:11.073 READ FPDMA QUEUED 60 10 20 2f 47 5a 40 00 2d+07:38:11.073 READ FPDMA QUEUED 60 08 18 1f 47 5a 40 00 2d+07:38:11.073 READ FPDMA QUEUED Error 41 occurred at disk power-on lifetime: 3405 hours (141 days + 21 hours) When the command that caused the error occurred, the device was in an unknown state. After command completion occurred, registers were: ER ST SC SN CL CH DH -- -- -- -- -- -- -- 00 41 01 10 00 00 a0 Error: Commands leading to the command that caused the error were: CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name -- -- -- -- -- -- -- -- ---------------- -------------------- 2f 00 01 10 00 00 a0 00 12:51:00.112 READ LOG EXT 60 20 20 7f 32 4c 40 00 12:51:00.081 READ FPDMA QUEUED 60 08 18 6f 32 4c 40 00 12:51:00.081 READ FPDMA QUEUED 60 30 10 9f 32 4c 40 00 12:51:00.081 READ FPDMA QUEUED 60 08 08 5f 32 4c 40 00 12:51:00.081 READ FPDMA QUEUED SMART Self-test log structure revision number 1 Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error # 1 Offline Interrupted (host reset) 00% 3941 - # 2 Offline Interrupted (host reset) 00% 1940 - # 3 Offline Interrupted (host reset) 00% 1894 - 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. -- Denys -- 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