Help debugging DMA_READ errors
Wilko Bulte
wb at freebie.xs4all.nl
Tue Sep 16 18:45:43 UTC 2008
Quoting Clint Olsen, who wrote on Tue, Sep 16, 2008 at 11:19:03AM -0700 ..
> Hi Jeremy:
>
> Thanks for your detailed response. Here are the answers I have thus far:
>
> On Sep 16, Jeremy Chadwick wrote:
> > acd0 is a CD/DVD drive. ad4 is a hard disk. What exactly were you
> > doing with the system at the time these errors appeared? Were you using
> > the CD/DVD drive? Was there a disc in the drive that was mounted?
> > If none of these things, I'm baffled as to what would read acd0 and
> > cause what you see here.
>
> I was not at the system at the time. I never have had a disk in the drive
> nor is /cdrom mounted currently. I have dump backups that run in the
> middle of the night on the various filesystems.
Taking a long shot: you do not have cooling issues of the drives maybe?
Wilko
>
> > Can you please provide full details of what these disks are connected
> > to? I'd like to see dmesg output for ata0, ata2, and ata3, as well as
> > the atapci devices those ataX devices are attached to, ditto with
> > vmstat -i output. Are there any other errors in your logs around
> > that time (e.g. watchdog timeouts of any kind on network devices, etc.?)
>
> # dmesg | grep -i ata
> atapci0: <Intel ICH5 UDMA100 controller> port 0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0xfc00-0xfc0f at device 31.1 on pci0
> ata0: <ATA channel 0> on atapci0
> ata1: <ATA channel 1> on atapci0
> atapci1: <Intel ICH5 SATA150 controller> port 0xeff0-0xeff7,0xefe4-0xefe7,0xefa8-0xefaf,0xefe0-0xefe3,0xef60-0xef6f irq 18 at device 31.2 on pci0
> ata2: <ATA channel 0> on atapci1
> ata3: <ATA channel 1> on atapci1
>
> I skipped the disks, of course.
>
> > Additionally, it would be very useful if you could install
> > ports/sysutils/smartmontools and provide the following output:
> >
> > # smartctl -a /dev/ad0
> > # smartctl -a /dev/ad4
>
> See attached.
>
> > http://wiki.freebsd.org/JeremyChadwick/ATA_issues_and_troubleshooting
> >
> > The bottom line is that, if the problems you're seeing are the "same
> > thing" others are seeing, then you are not alone. As I said initially,
> > finding the source of these problems is difficult, and they are often
> > "unique" to each individual's machine. For some, replacing cables, the
> > entire motherboard, disk controller, or just the PSU helped; for others,
> > the problem disappeared on its own; in other cases, the problem was
> > so severe that they ended up switching to Linux.
>
> I'll take a look at this page.
>
> Thanks,
>
> -Clint
>
> --
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>
> smartctl version 5.38 [i386-portbld-freebsd6.3] Copyright (C) 2002-8 Bruce Allen
> Home page is http://smartmontools.sourceforge.net/
>
> === START OF INFORMATION SECTION ===
> Model Family: Western Digital Caviar SE family
> Device Model: WDC WD1200JB-32EVA0
> Serial Number: WD-WMAEL1302890
> Firmware Version: 15.05R15
> User Capacity: 120,034,123,776 bytes
> Device is: In smartctl database [for details use: -P show]
> ATA Version is: 6
> ATA Standard is: Exact ATA specification draft version not indicated
> Local Time is: Tue Sep 16 11:11:04 2008 PDT
> 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: (3801) seconds.
> Offline data collection
> capabilities: (0x79) SMART execute Offline immediate.
> No Auto Offline data collection 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.
> No General Purpose Logging support.
> Short self-test routine
> recommended polling time: ( 2) minutes.
> Extended self-test routine
> recommended polling time: ( 53) minutes.
> Conveyance self-test routine
> recommended polling time: ( 5) minutes.
>
> 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 162 148 021 Pre-fail Always - 2433
> 4 Start_Stop_Count 0x0032 100 100 040 Old_age Always - 79
> 5 Reallocated_Sector_Ct 0x0033 199 199 140 Pre-fail Always - 7
> 7 Seek_Error_Rate 0x000b 100 253 051 Pre-fail Always - 0
> 9 Power_On_Hours 0x0032 042 042 000 Old_age Always - 42740
> 10 Spin_Retry_Count 0x0013 100 253 051 Pre-fail Always - 0
> 11 Calibration_Retry_Count 0x0013 100 253 051 Pre-fail Always - 0
> 12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 79
> 194 Temperature_Celsius 0x0022 111 253 000 Old_age Always - 39
> 196 Reallocated_Event_Count 0x0032 193 193 000 Old_age Always - 7
> 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 0x0009 200 155 051 Pre-fail 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.
>
> smartctl version 5.38 [i386-portbld-freebsd6.3] Copyright (C) 2002-8 Bruce Allen
> Home page is http://smartmontools.sourceforge.net/
>
> === START OF INFORMATION SECTION ===
> Model Family: Western Digital Caviar SE Serial ATA family
> Device Model: WDC WD1200JD-00GBB0
> Serial Number: WD-WMAET1326141
> Firmware Version: 02.05D02
> User Capacity: 120,034,123,776 bytes
> Device is: In smartctl database [for details use: -P show]
> ATA Version is: 6
> ATA Standard is: Exact ATA specification draft version not indicated
> Local Time is: Tue Sep 16 11:11:17 2008 PDT
> 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: (3801) seconds.
> Offline data collection
> capabilities: (0x79) SMART execute Offline immediate.
> No Auto Offline data collection 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.
> No General Purpose Logging support.
> Short self-test routine
> recommended polling time: ( 2) minutes.
> Extended self-test routine
> recommended polling time: ( 53) minutes.
> Conveyance self-test routine
> recommended polling time: ( 5) minutes.
>
> 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 160 139 021 Pre-fail Always - 2508
> 4 Start_Stop_Count 0x0032 100 100 040 Old_age Always - 55
> 5 Reallocated_Sector_Ct 0x0033 200 200 140 Pre-fail Always - 0
> 7 Seek_Error_Rate 0x000b 200 200 051 Pre-fail Always - 0
> 9 Power_On_Hours 0x0032 051 051 000 Old_age Always - 36471
> 10 Spin_Retry_Count 0x0013 100 253 051 Pre-fail Always - 0
> 11 Calibration_Retry_Count 0x0013 100 253 051 Pre-fail Always - 0
> 12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 55
> 194 Temperature_Celsius 0x0022 104 253 000 Old_age Always - 46
> 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 - 2
> 200 Multi_Zone_Error_Rate 0x0009 200 155 051 Pre-fail 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.
>
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