Date: Thu, 27 Jun 2013 04:38:37 +0200 From: Nikola =?utf-8?B?UGF2bG92acSH?= <nzp@riseup.net> To: freebsd-questions@freebsd.org Subject: Troubleshooting a gmirror disk marked broken Message-ID: <20130627023837.GA7685@sputnjik.localdomain>
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--LZvS9be/3tNcYl/X Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Hi, Last night during a massive (~1 year worth :| ) portsnap fetch the server went unresponsive and ssh eventually disconnected. I decided to leave it during the night, and, sure enough, the situation was the same in the morning, so I had to do a hard reset. It came back up, but one of the two gmirror components was marked as broken and deactivated. The hang happened during the 'fetching new files or ports' (~24000 of them, there are currently ~10000 snapshots in /var/db/portsnap) phase of postsnap fetch. /var/log/messages was completely silent during the period between the hang and the reset. Googling around I found a mention that it's possible to sometimes get a 'blip'[*] during busy periods, so I decided to just bite the bullet and reinsert the component with # gmirror forget gm0 # gmirror clean ad4 # gmirror insert gm0 ad4 Currently it's syncing and things *seem* OK. My question is how much should I be worried and what could be the cause of this? Is it possible that ports snapshot fetching caused this, or that perhaps it was the other way around (a failing disk causing the machine to choke during the huge portsnap fetch)? How to proceed? :) At the moment I'm attaching smartctl -a results for both disks (ad4 was marked broken). As I'm completely useless in deciphering smartctl results (apart from being thought by experience to pretty much ignore(tm) the 'Pre-fail' statuses), I'd appreciate assessment from more knowledgeable people. Also attached is a trimmed /var/log/messages from the moment of hard reset on (I can fill in the snipped parts, just didn't want to choke people with possibly irrelevant details). $ uname -a FreeBSD isus 8.3-RELEASE-p3 FreeBSD 8.3-RELEASE-p3 #0: Tue Jun 12 00:39:29 UTC 2012 root@amd64-builder.daemonology.net:/usr/obj/usr/src/sys/GENERIC amd64 ------- [*] http://www.eztiger.org/2008/08/removing-and-re-adding-a-disk-in-gmirror/ -- If you analyse anything, you destroy it. -- Arthur Miller --LZvS9be/3tNcYl/X Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=smartctl-ad4 smartctl 5.42 2011-10-20 r3458 [FreeBSD 8.3-RELEASE-p3 amd64] (local build) Copyright (C) 2002-11 by Bruce Allen, http://smartmontools.sourceforge.net === START OF INFORMATION SECTION === Model Family: Seagate Barracuda 7200.10 Device Model: ST3320620AS Serial Number: 5QF1FDAS Firmware Version: 3.AAE User Capacity: 320,072,933,376 bytes [320 GB] Sector Size: 512 bytes logical/physical 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: Thu Jun 27 03:55:37 2013 CEST 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: (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: ( 430) 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: ( 1) minutes. Extended self-test routine recommended polling time: ( 115) minutes. ATA Version is: 7 ATA Standard is: Exact ATA specification draft version not indicated Local Time is: Thu Jun 27 03:55:37 2013 CEST 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: (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: ( 430) 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: ( 1) minutes. Extended self-test routine recommended polling time: ( 115) minutes. 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 097 088 006 Pre-fail Always - 168982958 3 Spin_Up_Time 0x0003 096 096 000 Pre-fail Always - 0 4 Start_Stop_Count 0x0032 100 100 020 Old_age Always - 23 5 Reallocated_Sector_Ct 0x0033 100 100 036 Pre-fail Always - 2 7 Seek_Error_Rate 0x000f 088 060 030 Pre-fail Always - 800989511 9 Power_On_Hours 0x0032 085 085 000 Old_age Always - 13768 10 Spin_Retry_Count 0x0013 100 100 097 Pre-fail Always - 0 12 Power_Cycle_Count 0x0032 100 100 020 Old_age Always - 38 187 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 048 046 045 Old_age Always - 52 (Min/Max 30/52) 194 Temperature_Celsius 0x0022 052 054 000 Old_age Always - 52 (0 19 0 0 0) 195 Hardware_ECC_Recovered 0x001a 062 057 000 Old_age Always - 118828427 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 Data_Address_Mark_Errs 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% 13229 - # 2 Short offline Completed without error 00% 13197 - # 3 Short offline Completed without error 00% 10062 - 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. --LZvS9be/3tNcYl/X Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=smartctl-ad6 smartctl 5.42 2011-10-20 r3458 [FreeBSD 8.3-RELEASE-p3 amd64] (local build) Copyright (C) 2002-11 by Bruce Allen, http://smartmontools.sourceforge.net === START OF INFORMATION SECTION === Model Family: SAMSUNG SpinPoint T133 Device Model: SAMSUNG HD300LJ Serial Number: S0D7J1CLB13745 Firmware Version: ZT100-13 User Capacity: 300,069,052,416 bytes [300 GB] Sector Size: 512 bytes logical/physical Device is: In smartctl database [for details use: -P show] ATA Version is: 7 ATA Standard is: ATA/ATAPI-7 T13 1532D revision 4a Local Time is: Thu Jun 27 04:05:02 2013 CEST 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: (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: ( 6980) 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: ( 126) minutes. SCT capabilities: (0x003f) SCT Status supported. SCT Error Recovery Control 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 0x000f 100 100 051 Pre-fail Always - 0 3 Spin_Up_Time 0x0007 100 100 015 Pre-fail Always - 7552 4 Start_Stop_Count 0x0032 100 100 000 Old_age Always - 17 5 Reallocated_Sector_Ct 0x0033 100 100 010 Pre-fail Always - 1 7 Seek_Error_Rate 0x000f 253 253 051 Pre-fail Always - 0 8 Seek_Time_Performance 0x0025 253 253 015 Pre-fail Offline - 0 9 Power_On_Hours 0x0032 100 100 000 Old_age Always - 49422 10 Spin_Retry_Count 0x0033 253 253 051 Pre-fail Always - 0 11 Calibration_Retry_Count 0x0012 253 253 000 Old_age Always - 0 12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 17 190 Airflow_Temperature_Cel 0x0022 055 055 000 Old_age Always - 45 194 Temperature_Celsius 0x0022 103 103 000 Old_age Always - 45 195 Hardware_ECC_Recovered 0x001a 100 100 000 Old_age Always - 184485293 196 Reallocated_Event_Count 0x0032 100 100 000 Old_age Always - 1 197 Current_Pending_Sector 0x0012 253 253 000 Old_age Always - 0 198 Offline_Uncorrectable 0x0030 253 253 000 Old_age Offline - 0 199 UDMA_CRC_Error_Count 0x003e 200 200 000 Old_age Always - 0 200 Multi_Zone_Error_Rate 0x000a 100 100 000 Old_age Always - 0 201 Soft_Read_Error_Rate 0x000a 100 100 000 Old_age Always - 0 202 Data_Address_Mark_Errs 0x0032 253 253 000 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% 38620 - # 2 Extended offline Completed without error 00% 38599 - Note: selective self-test log revision number (0) not 1 implies that no selective self-test has ever been run SMART Selective self-test log data structure revision number 0 Note: revision number not 1 implies that no selective self-test has ever been run 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. --LZvS9be/3tNcYl/X Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=messages Jun 26 10:51:34 isus syslogd: kernel boot file is /boot/kernel/kernel Jun 26 10:51:34 isus kernel: ad6: WARNING - SETFEATURES ENABLE RCACHE taskqueue timeout - completing request directly Jun 26 10:51:34 isus kernel: ad6: WARNING - SETFEATURES ENABLE WCACHE taskqueue timeout - completing request directly Jun 26 10:51:34 isus kernel: ad6: WARNING - SET_MULTI taskqueue timeout - completing request directly Jun 26 10:51:34 isus kernel: ad6: TIMEOUT - WRITE_DMA48 retrying (1 retry left) LBA=337093455 Jun 26 10:51:34 isus kernel: ad4: WARNING - SETFEATURES SET TRANSFER MODE taskqueue timeout - completing request directly Jun 26 10:51:34 isus kernel: ad4: WARNING - SETFEATURES ENABLE RCACHE taskqueue timeout - completing request directly Jun 26 10:51:34 isus kernel: ad4: WARNING - SETFEATURES ENABLE WCACHE taskqueue timeout - completing request directly Jun 26 10:51:34 isus kernel: ad4: WARNING - SET_MULTI taskqueue timeout - completing request directly Jun 26 10:51:34 isus kernel: ad4: TIMEOUT - WRITE_DMA48 retrying (1 retry left) LBA=337093455 Jun 26 10:51:34 isus kernel: ad4: WARNING - SETFEATURES SET TRANSFER MODE taskqueue timeout - completing request directly Jun 26 10:51:34 isus kernel: ad4: WARNING - SETFEATURES ENABLE RCACHE taskqueue timeout - completing request directly Jun 26 10:51:34 isus kernel: ad4: WARNING - SETFEATURES ENABLE WCACHE taskqueue timeout - completing request directly Jun 26 10:51:34 isus kernel: ad4: WARNING - SET_MULTI taskqueue timeout - completing request directly Jun 26 10:51:34 isus kernel: ad4: WARNING - WRITE_DMA48 requeued due to channel reset LBA=337092335 Jun 26 10:51:34 isus kernel: ad4: TIMEOUT - WRITE_DMA48 retrying (1 retry left) LBA=337092271 Jun 26 10:51:34 isus kernel: ad4: WARNING - SETFEATURES SET TRANSFER MODE taskqueue timeout - completing request directly Jun 26 10:51:34 isus kernel: ad4: WARNING - SETFEATURES ENABLE RCACHE taskqueue timeout - completing request directly Jun 26 10:51:34 isus kernel: ad4: WARNING - SETFEATURES ENABLE WCACHE taskqueue timeout - completing request directly Jun 26 10:51:34 isus kernel: ad4: WARNING - SET_MULTI taskqueue timeout - completing request directly Jun 26 10:51:34 isus kernel: ad4: WARNING - WRITE_DMA48 requeued due to channel reset LBA=337093455 Jun 26 10:51:34 isus kernel: ata2: FAILURE - already active DMA on this device Jun 26 10:51:34 isus kernel: ata2: setting up DMA failed Jun 26 10:51:34 isus kernel: ad4: TIMEOUT - WRITE_DMA48 retrying (1 retry left)GEOM_MIRROR LBA=337092303: Request failed (error=5). Jun 26 10:51:34 isus kernel: ad4[WRITE(offset=172591848960, length=16384)] Jun 26 10:51:34 isus kernel: GEOM_MIRROR: Device gm0: provider ad4 disconnected. Jun 26 10:51:34 isus kernel: ad6: WARNING - SETFEATURES SET TRANSFER MODE taskqueue timeout - completing request directly Jun 26 10:51:34 isus kernel: ad6: WARNING - SETFEATURES ENABLE RCACHE taskqueue timeout - completing request directly Jun 26 10:51:34 isus kernel: ad6: WARNING - SETFEATURES ENABLE WCACHE taskqueue timeout - completing request directly Jun 26 10:51:34 isus kernel: ad6: WARNING - SET_MULTI taskqueue timeout - completing request directly Jun 26 10:51:34 isus kernel: ad6: TIMEOUT - WRITE_DMA48 retrying (1 retry left) LBA=337092271 Jun 26 10:51:34 isus kernel: ad4: WARNING - SETFEATURES SET TRANSFER MODE taskqueue timeout - completing request directly Jun 26 10:51:34 isus kernel: ad4: WARNING - SETFEATURES ENABLE RCACHE taskqueue timeout - completing request directly Jun 26 10:51:34 isus kernel: ad4: WARNING - SETFEATURES ENABLE WCACHE taskqueue timeout - completing request directly Jun 26 10:51:34 isus kernel: ad4: WARNING - SET_MULTI taskqueue timeout - completing request directly Jun 26 10:51:34 isus kernel: ad4: TIMEOUT - WRITE_DMA48 retrying (0 retries left) LBA=337092271 [ snip lots more simmilar ] Jun 26 10:51:34 isus kernel: unknown: TIMEOUT - WRITE_DMA48 retrying (0 retries left) LBA=586072367 Jun 26 10:51:34 isus kernel: ata3: timeout waiting to issue command Jun 26 10:51:34 isus kernel: ata3: error issuing WRITE_DMA48 command Jun 26 10:51:34 isus kernel: ad4: WARNING - SETFEATURES SET TRANSFER MODE taskqueue timeout - completing request directly Jun 26 10:51:34 isus kernel: ad4: WARNING - SETFEATURES ENABLE RCACHE taskqueue timeout - completing request directly Jun 26 10:51:34 isus kernel: ad4: WARNING - SETFEATURES ENABLE WCACHE taskqueue timeout - completing request directly Jun 26 10:51:34 isus kernel: ad4: WARNING - SET_MULTI taskqueue timeout - completing request directly Jun 26 10:51:34 isus kernel: ad4: TIMEOUT - WRITE_DMA48 retrying (0 retries left) LBA=337092399 Jun 26 10:51:34 isus kernel: GEOM_MIRROR: Cannot write metadata on ad6 (device=gm0, error=5). Jun 26 10:51:34 isus kernel: GEOM_MIRROR: Cannot update metadata on disk ad6 (error=5). Jun 26 10:51:34 isus kernel: GEOM_MIRROR: Device gm0: provider ad6 disconnected. Jun 26 10:51:34 isus kernel: GEOM_MIRROR: Device gm0: provider mirror/gm0 destroyed. Jun 26 10:51:34 isus kernel: g_vfs_done():mirror/gm0s1a[READ(offset=799555584, length=4096)]error = 6 Jun 26 10:51:34 isus kernel: g_vfs_done():mirror/gm0s1g[READ(offset=56259260416, length=2048)]error = 6 Jun 26 10:51:34 isus kernel: g_vfs_done():mirror/gm0s1g[READ(offset=56463439872, length=2048)]error = 6 Jun 26 10:51:34 isus kernel: g_vfs_done():mirror/gm0s1g[WRITE(offset=86691856384, length=16384)]error = 6 Jun 26 10:51:34 isus kernel: /dev: got error 6 while accessing filesystem Jun 26 10:51:34 isus kernel: panic: softdep_deallocate_dependencies: unrecovered I/O error Jun 26 10:51:34 isus kernel: cpuid = 0 Jun 26 10:51:34 isus kernel: KDB: stack backtrace: Jun 26 10:51:34 isus kernel: #0 0xffffffff8063dcbe at kdb_backtrace+0x5e Jun 26 10:51:34 isus kernel: #1 0xffffffff8060aed7 at panic+0x187 Jun 26 10:51:34 isus kernel: #2 0xffffffff80839970 at clear_remove+0 Jun 26 10:51:34 isus kernel: #3 0xffffffff80683750 at brelse+0x60 Jun 26 10:51:34 isus kernel: #4 0xffffffff806862a8 at bufdone+0x68 Jun 26 10:51:34 isus kernel: #5 0xffffffff805aae56 at g_io_schedule_up+0xa6 Jun 26 10:51:34 isus kernel: #6 0xffffffff805ab3d8 at g_up_procbody+0x58 Jun 26 10:51:34 isus kernel: #7 0xffffffff805dfb2f at fork_exit+0x11f Jun 26 10:51:34 isus kernel: Copyright (c) 1992-2012 The FreeBSD Project. Jun 26 10:51:34 isus kernel: Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994 Jun 26 10:51:34 isus kernel: The Regents of the University of California. All rights reserved. Jun 26 10:51:34 isus kernel: FreeBSD is a registered trademark of The FreeBSD Foundation. Jun 26 10:51:34 isus kernel: FreeBSD 8.3-RELEASE-p3 #0: Tue Jun 12 00:39:29 UTC 2012 Jun 26 10:51:34 isus kernel: root@amd64-builder.daemonology.net:/usr/obj/usr/src/sys/GENERIC amd64 [ snip the normal stuff ] Jun 26 10:51:34 isus kernel: GEOM_MIRROR: Component ad4 (device gm0) broken, skipping. Jun 26 10:51:34 isus kernel: GEOM_MIRROR: Device mirror/gm0 launched (1/2). Jun 26 10:51:34 isus kernel: SMP: AP CPU #1 Launched! Jun 26 10:51:34 isus kernel: GEOM: ad4s1: geometry does not match label (255h,63s != 16h,63s). [ after this it' all the usual, plus background fsck fixing a huge amount of INCORRECT BLOCK COUNT and some UNREF FILE on gm0s1g (/var)] Jun 26 11:03:15 isus fsck: /dev/mirror/gm0s1g: Reclaimed: 0 directories, 4294956770 files, -12913 fragments Jun 26 11:03:15 isus fsck: /dev/mirror/gm0s1g: 249619 files, 1273037 used, 100022063 free (19495 frags, 12500321 blocks, 0.0% fragmentation) --LZvS9be/3tNcYl/X--
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