I can already say that dmesg prints many of the same error messages with the mainline kernel 3.12.0-031200-generic . I will report back in case I don't observe freezes anymore.
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1247806 Title: Kernel resetting SATA link Status in “linux” package in Ubuntu: Incomplete Bug description: On Ubuntu 13.10 I encounter kernel reseting SATA link in connection with temporary system freezes (KDE lags). Such a bug has previously been reported here https://bugs.launchpad.net/ubuntu/+source/linux/+bug/888764 for the same hardware but older software. This behavior has also been reported here https://lkml.org/lkml/2011/10/26/11 for same hardware and in connection with unresponsive KDE. For me it occurs if the system is under high load. In such situations dmesg says repeatedly: [23391.818508] ata4: exception Emask 0x10 SAct 0x0 SErr 0x4040000 action 0xe frozen [23391.818513] ata4: irq_stat 0x00000040, connection status changed [23391.818516] ata4: SError: { CommWake DevExch } [23391.818523] ata4: limiting SATA link speed to 1.5 Gbps [23391.818525] ata4: hard resetting link [23392.538993] ata4: SATA link down (SStatus 0 SControl 310) [23392.554893] ata4: EH complete Smart does not report any critical errors: === START OF INFORMATION SECTION === Model Family: Seagate Momentus Thin Device Model: ST320LT007-9ZV142 Serial Number: W0Q4FQRR LU WWN Device Id: 5 000c50 04998da73 Firmware Version: 0004LVM1 User Capacity: 320'072'933'376 bytes [320 GB] Sector Sizes: 512 bytes logical, 4096 bytes physical Rotation Rate: 7242 rpm Device is: In smartctl database [for details use: -P show] ATA Version is: ATA8-ACS T13/1699-D revision 4 SATA Version is: SATA 2.6, 3.0 Gb/s (current: 3.0 Gb/s) Local Time is: Mon Nov 4 12:55:25 2013 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 See vendor-specific Attribute list for marginal Attributes. General SMART Values: Offline data collection status: (0x00) Offline data collection activity was never started. Auto Offline Data Collection: Disabled. 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: ( 0) seconds. Offline data collection capabilities: (0x73) SMART execute Offline immediate. Auto Offline data collection on/off support. Suspend Offline collection upon new command. No Offline surface scan supported. Self-test supported. 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: ( 1) minutes. Extended self-test routine recommended polling time: ( 63) minutes. Conveyance self-test routine recommended polling time: ( 2) minutes. SCT capabilities: (0x303b) SCT Status supported. SCT Error Recovery Control supported. SCT Feature Control supported. SCT Data Table 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 113 099 034 Pre-fail Always - 55387800 3 Spin_Up_Time 0x0003 098 098 000 Pre-fail Always - 0 4 Start_Stop_Count 0x0032 100 100 020 Old_age Always - 768 5 Reallocated_Sector_Ct 0x0033 100 100 036 Pre-fail Always - 0 7 Seek_Error_Rate 0x000f 074 060 030 Pre-fail Always - 8647632770 9 Power_On_Hours 0x0032 097 097 000 Old_age Always - 3216 (255 5 0) 10 Spin_Retry_Count 0x0013 100 100 097 Pre-fail Always - 0 12 Power_Cycle_Count 0x0032 100 100 020 Old_age Always - 727 184 End-to-End_Error 0x0032 100 100 099 Old_age Always - 0 187 Reported_Uncorrect 0x0032 100 100 000 Old_age Always - 0 188 Command_Timeout 0x0032 100 100 000 Old_age Always - 1 189 High_Fly_Writes 0x003a 100 100 000 Old_age Always - 0 190 Airflow_Temperature_Cel 0x0022 064 035 045 Old_age Always In_the_past 36 (0 25 36 25 0) 191 G-Sense_Error_Rate 0x0032 100 100 000 Old_age Always - 57 192 Power-Off_Retract_Count 0x0032 100 100 000 Old_age Always - 41 193 Load_Cycle_Count 0x0032 058 058 000 Old_age Always - 85612 194 Temperature_Celsius 0x0022 036 065 000 Old_age Always - 36 (0 15 0 0 0) 195 Hardware_ECC_Recovered 0x001a 053 043 000 Old_age Always - 55387800 196 Reallocated_Event_Count 0x000f 097 097 030 Pre-fail Always - 2695 (19309 0) 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 - 0 250 Read_Error_Retry_Rate 0x0000 001 001 000 Old_age Offline - 10975 251 Unknown_Attribute 0x0000 100 001 000 Old_age Offline - 31 252 Unknown_Attribute 0x0000 100 001 000 Old_age Offline - 0 254 Free_Fall_Sensor 0x0032 100 100 000 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% 3187 - # 2 Short offline Completed without error 00% 1689 - # 3 Vendor (0x50) 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. ProblemType: Bug DistroRelease: Ubuntu 13.10 Package: linux-image-3.11.0-12-generic 3.11.0-12.19 ProcVersionSignature: Ubuntu 3.11.0-12.19-generic 3.11.3 Uname: Linux 3.11.0-12-generic x86_64 ApportVersion: 2.12.5-0ubuntu2.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: andreas 2423 F.... pulseaudio Date: Mon Nov 4 12:39:38 2013 HibernationDevice: RESUME=UUID=16eda186-8469-4386-a576-faabb34feb18 InstallationDate: Installed on 2013-05-24 (163 days ago) InstallationMedia: Kubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424) MachineType: LENOVO 4243EJ9 MarkForUpload: True ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-12-generic root=UUID=b7dd00d8-27dd-4b60-9cad-281f63d28e19 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.11.0-12-generic N/A linux-backports-modules-3.11.0-12-generic N/A linux-firmware 1.116 SourcePackage: linux UpgradeStatus: Upgraded to saucy on 2013-10-17 (17 days ago) dmi.bios.date: 12/06/2011 dmi.bios.vendor: LENOVO dmi.bios.version: 8AET56WW (1.36 ) dmi.board.asset.tag: Not Available dmi.board.name: 4243EJ9 dmi.board.vendor: LENOVO dmi.board.version: Not Available dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvr8AET56WW(1.36):bd12/06/2011:svnLENOVO:pn4243EJ9:pvrThinkPadT520:rvnLENOVO:rn4243EJ9:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 4243EJ9 dmi.product.version: ThinkPad T520 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1247806/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp