Date: Sun, 18 Jul 2010 17:42:14 -0400 From: Mike Tancsa <mike@sentex.net> To: Jeremy Chadwick <freebsd@jdc.parodius.com> Cc: freebsd-stable@freebsd.org Subject: Re: deadlock or bad disk ? RELENG_8 Message-ID: <201007182142.o6ILgDQW044046@lava.sentex.ca> In-Reply-To: <20100718211415.GA84127@icarus.home.lan> References: <201007182108.o6IL88eG043887@lava.sentex.ca> <20100718211415.GA84127@icarus.home.lan>
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At 05:14 PM 7/18/2010, Jeremy Chadwick wrote: >Where exactly is your swap partition? On one of the areca raidsets. # swapctl -l Device: 1024-blocks Used: /dev/da0s1b 10485760 108 >If you Google for "swap_pager: indefinite wait buffer: bufobj" you'll >find this is a pretty well-established problem, but the situation varies >per person. A common one is here (read the entire thread): > >http://www.mail-archive.com/freebsd-questions@freebsd.org/msg192481.html > >I have no advice as far as how to solve this problem. If feels like a disk issue, but SMART values all seem ok eg CLI> disk smart drv=1 S.M.A.R.T Information For Drive[#01] # Attribute Items Flag Value Thres State =============================================================================== 1 Raw Read Error Rate 0x0f 108 6 OK 3 Spin Up Time 0x03 91 0 OK 4 Start/Stop Count 0x32 100 20 OK 5 Reallocated Sector Count 0x33 100 36 OK 7 Seek Error Rate 0x0f 81 30 OK 9 Power-on Hours Count 0x32 79 0 OK 10 Spin Retry Count 0x13 100 97 OK 12 Device Power Cycle Count 0x32 100 20 OK 194 Temperature 0x22 30 0 OK 197 Current Pending Sector Count 0x12 100 0 OK 198 Off-line Scan Uncorrectable Sector Count 0x10 100 0 OK 199 Ultra DMA CRC Error Count 0x3e 200 0 OK smartctl -a -d 3ware,1 /dev/twa0 smartctl 5.39.1 2010-01-28 r3054 [FreeBSD 8.1-PRERELEASE amd64] (local build) Copyright (C) 2002-10 by Bruce Allen, http://smartmontools.sourceforge.net === START OF INFORMATION SECTION === Model Family: Western Digital Raptor family Device Model: WDC WD740ADFD-00NLR1 Serial Number: WD-WMANS1051760 Firmware Version: 20.07P20 User Capacity: 74,355,769,344 bytes Device is: In smartctl database [for details use: -P show] ATA Version is: 7 ATA Standard is: ATA/ATAPI-7 published, ANSI INCITS 397-2005 Local Time is: Sun Jul 18 17:41:36 2010 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: (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: (2391) seconds. Offline data collection capabilities: (0x7b) SMART execute Offline immediate. Auto Offline data collection on/off support. Suspend Offline collection upon new command. 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: ( 2) minutes. Extended self-test routine recommended polling time: ( 39) minutes. Conveyance self-test routine recommended polling time: ( 5) minutes. SCT capabilities: (0x103f) 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 0x000b 200 200 051 Pre-fail Always - 0 3 Spin_Up_Time 0x0007 170 170 021 Pre-fail Always - 2508 4 Start_Stop_Count 0x0032 100 100 040 Old_age Always - 45 5 Reallocated_Sector_Ct 0x0033 200 200 140 Pre-fail Always - 0 7 Seek_Error_Rate 0x000a 200 200 051 Old_age Always - 0 9 Power_On_Hours 0x0032 060 060 000 Old_age Always - 29672 10 Spin_Retry_Count 0x0012 100 253 051 Old_age Always - 0 11 Calibration_Retry_Count 0x0012 100 253 051 Old_age Always - 0 12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 45 194 Temperature_Celsius 0x0022 107 099 000 Old_age Always - 36 196 Reallocated_Event_Count 0x0032 200 200 000 Old_age Always - 0 197 Current_Pending_Sector 0x0012 200 200 000 Old_age Always - 0 198 Offline_Uncorrectable 0x0012 200 200 000 Old_age Always - 0 199 UDMA_CRC_Error_Count 0x000a 200 253 000 Old_age Always - 0 200 Multi_Zone_Error_Rate 0x0008 200 200 051 Old_age Offline - 0 SMART Error Log Version: 1 No Errors Logged SMART Self-test log structure revision number 1 No self-tests have been logged. [To run self-tests, use: smartctl -t] 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. ---Mike
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