linux-raid.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Reindl Harald <h.reindl@thelounge.net>
To: Roman Mamedov <rm@romanrm.net>,
	Daniel Sanabria <sanabria.d@gmail.com>,
	Linux-RAID <linux-raid@vger.kernel.org>
Subject: Re: do i need to give up on this setup
Date: Mon, 5 Oct 2020 16:10:35 +0200	[thread overview]
Message-ID: <d60e92fc-a9aa-a48d-a3ac-dc3613d4686b@thelounge.net> (raw)
In-Reply-To: <20201005190421.4ecd8f1b@natsu>



Am 05.10.20 um 16:04 schrieb Roman Mamedov:
> On Mon, 5 Oct 2020 14:59:35 +0100
> Daniel Sanabria <sanabria.d@gmail.com> wrote:
> 
>>> It looks like a drive is dropping off the bus and then failing to reidentify,
>>> could be bad cabling/controller/PSU, or just a bad drive. You should post
>>> "smartctl -a" of all drives as well.
> 
> I meant not to me personally, but to the mailing list. The drives seem OK
> though, even sde.

you have a hardware problem and it#s no uncommon when one of your disks
is going crazy under laod that due the reset of the crontroller a second
one on the same bus is also reset

either one of your disks is faulty, the controller is faulty or you have
an issue with your cables

40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
Oct 05 11:34:39 lamachine kernel: ata8.00: status: { DRDY }
Oct 05 11:34:39 lamachine kernel: ata8.00: failed command: READ FPDMA QUEUED
Oct 05 11:34:39 lamachine kernel: ata8.00: cmd
60/40:48:18:5f:2b/05:00:45:00:00/40 tag 9 ncq dma 688128 in
                                           res
40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
Oct 05 11:34:39 lamachine kernel: ata8.00: status: { DRDY }
Oct 05 11:34:39 lamachine kernel: ata8.00: failed command: READ FPDMA QUEUED
Oct 05 11:34:39 lamachine kernel: ata8.00: cmd
60/40:50:58:64:2b/05:00:45:00:00/40 tag 10 ncq dma 688128 in
                                           res
40/00:ff:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
Oct 05 11:34:39 lamachine kernel: ata8.00: status: { DRDY }
Oct 05 11:34:39 lamachine kernel: ata8.00: failed command: READ FPDMA QUEUED
Oct 05 11:34:39 lamachine kernel: ata8.00: cmd
60/40:58:98:69:2b/05:00:45:00:00/40 tag 11 ncq dma 688128 in
                                           res
40/00:00:00:4f:c2/00:00:00:00:00/00 Emask 0x4 (timeout)

Oct 05 11:35:29 lamachine kernel: ata7.00: qc timeout (cmd 0xec)
Oct 05 11:35:29 lamachine kernel: ata8.00: qc timeout (cmd 0xec)
Oct 05 11:35:29 lamachine kernel: ata8.00: failed to IDENTIFY (I/O
error, err_mask=0x4)
Oct 05 11:35:29 lamachine kernel: ata8.00: revalidation failed (errno=-5)
Oct 05 11:35:29 lamachine kernel: ata8.00: disabled
Oct 05 11:35:29 lamachine kernel: ata7.00: failed to IDENTIFY (I/O
error, err_mask=0x4)
Oct 05 11:35:29 lamachine kernel: ata7.00: revalidation failed (errno=-5)
Oct 05 11:35:29 lamachine kernel: ata7.00: disabled
Oct 05 11:35:30 lamachine kernel: ata7: SATA link up 6.0 Gbps (SStatus
133 SControl 320)
Oct 05 11:35:30 lamachine kernel: ata8: SATA link up 6.0 Gbps (SStatus
133 SControl 320)
Oct 05 11:35:31 lamachine kernel: ata8: EH complete
Oct 05 11:35:31 lamachine kernel: ata7: EH complete
Oct 05 11:35:31 lamachine kernel: scsi_io_completion_action: 115
callbacks suppressed
Oct 05 11:35:31 lamachine kernel: sd 7:0:0:0: [sdd] tag#12 FAILED
Result: hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK cmd_age=0s
Oct 05 11:35:31 lamachine kernel: sd 7:0:0:0: [sdd] tag#12 CDB:
Read(16) 88 00 00 00 00 00 45 2b d7 d8 00 00 05 40 00 00
Oct 05 11:35:31 lamachine kernel: print_req_error: 115 callbacks suppressed
Oct 05 11:35:31 lamachine kernel: blk_update_request: I/O error, dev
sdd, sector 1160501208 op 0x0:(READ) flags 0x4000 phys_seg 168 prio
class 0
Oct 05 11:35:31 lamachine kernel: sd 6:0:0:0: [sdc] tag#18 FAILED
Result: hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK cmd_age=0s
Oct 05 11:35:31 lamachine kernel: sd 6:0:0:0: [sdc] tag#18 CDB:
Read(16) 88 00 00 00 00 00 45 2b d7 d8 00 00 05 40 00 00
Oct 05 11:35:31 lamachine kernel: blk_update_request: I/O error, dev
sdc, sector 1160501208 op 0x0:(READ) flags 0x4000 phys_seg 168 prio

>> [dan@lamachine ~]$ sudo smartctl -a /dev/sdc
>> [sudo] password for dan:
>> smartctl 6.6 2017-11-05 r4594
>> [x86_64-linux-4.18.0-193.14.2.el8_2.x86_64] (local build)
>> Copyright (C) 2002-17, Bruce Allen, Christian Franke, www.smartmontools.org
>>
>> === START OF INFORMATION SECTION ===
>> Model Family:     Western Digital Green
>> Device Model:     WDC WD30EZRX-00D8PB0
>> Serial Number:    WD-WCC4NCWT13RF
>> LU WWN Device Id: 5 0014ee 25fc9e460
>> Firmware Version: 80.00A80
>> User Capacity:    3,000,591,900,160 bytes [3.00 TB]
>> Sector Sizes:     512 bytes logical, 4096 bytes physical
>> Rotation Rate:    5400 rpm
>> Device is:        In smartctl database [for details use: -P show]
>> ATA Version is:   ACS-2 (minor revision not indicated)
>> SATA Version is:  SATA 3.0, 6.0 Gb/s (current: 6.0 Gb/s)
>> Local Time is:    Mon Oct  5 14:58:34 2020 BST
>> 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: (38940) 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: ( 391) minutes.
>> Conveyance self-test routine
>> recommended polling time: (   5) minutes.
>> SCT capabilities:        (0x7035) 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     0x002f   200   200   051    Pre-fail
>> Always       -       0
>>   3 Spin_Up_Time            0x0027   178   165   021    Pre-fail
>> Always       -       6075
>>   4 Start_Stop_Count        0x0032   100   100   000    Old_age
>> Always       -       81
>>   5 Reallocated_Sector_Ct   0x0033   200   200   140    Pre-fail
>> Always       -       0
>>   7 Seek_Error_Rate         0x002e   100   253   000    Old_age
>> Always       -       0
>>   9 Power_On_Hours          0x0032   075   075   000    Old_age
>> Always       -       18577
>>  10 Spin_Retry_Count        0x0032   100   253   000    Old_age
>> Always       -       0
>>  11 Calibration_Retry_Count 0x0032   100   253   000    Old_age
>> Always       -       0
>>  12 Power_Cycle_Count       0x0032   100   100   000    Old_age
>> Always       -       81
>> 192 Power-Off_Retract_Count 0x0032   200   200   000    Old_age
>> Always       -       46
>> 193 Load_Cycle_Count        0x0032   142   142   000    Old_age
>> Always       -       176661
>> 194 Temperature_Celsius     0x0022   122   109   000    Old_age
>> Always       -       28
>> 196 Reallocated_Event_Count 0x0032   200   200   000    Old_age
>> Always       -       0
>> 197 Current_Pending_Sector  0x0032   200   200   000    Old_age
>> Always       -       0
>> 198 Offline_Uncorrectable   0x0030   200   200   000    Old_age
>> Offline      -       0
>> 199 UDMA_CRC_Error_Count    0x0032   200   200   000    Old_age
>> Always       -       0
>> 200 Multi_Zone_Error_Rate   0x0008   200   200   000    Old_age
>> Offline      -       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%     17479         -
>> # 2  Short offline       Completed without error       00%     15531         -
>>
>> 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.
>>
>> [dan@lamachine ~]$ sudo smartctl -a /dev/sdd
>> smartctl 6.6 2017-11-05 r4594
>> [x86_64-linux-4.18.0-193.14.2.el8_2.x86_64] (local build)
>> Copyright (C) 2002-17, Bruce Allen, Christian Franke, www.smartmontools.org
>>
>> === START OF INFORMATION SECTION ===
>> Model Family:     Western Digital Green
>> Device Model:     WDC WD30EZRX-00D8PB0
>> Serial Number:    WD-WCC4NPRDD6D7
>> LU WWN Device Id: 5 0014ee 25fca27b1
>> Firmware Version: 80.00A80
>> User Capacity:    3,000,592,982,016 bytes [3.00 TB]
>> Sector Sizes:     512 bytes logical, 4096 bytes physical
>> Rotation Rate:    5400 rpm
>> Device is:        In smartctl database [for details use: -P show]
>> ATA Version is:   ACS-2 (minor revision not indicated)
>> SATA Version is:  SATA 3.0, 6.0 Gb/s (current: 6.0 Gb/s)
>> Local Time is:    Mon Oct  5 14:58:54 2020 BST
>> 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: (39060) 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: ( 392) minutes.
>> Conveyance self-test routine
>> recommended polling time: (   5) minutes.
>> SCT capabilities:        (0x7035) 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     0x002f   200   200   051    Pre-fail
>> Always       -       0
>>   3 Spin_Up_Time            0x0027   178   164   021    Pre-fail
>> Always       -       6100
>>   4 Start_Stop_Count        0x0032   100   100   000    Old_age
>> Always       -       81
>>   5 Reallocated_Sector_Ct   0x0033   200   200   140    Pre-fail
>> Always       -       0
>>   7 Seek_Error_Rate         0x002e   100   253   000    Old_age
>> Always       -       0
>>   9 Power_On_Hours          0x0032   075   075   000    Old_age
>> Always       -       18580
>>  10 Spin_Retry_Count        0x0032   100   253   000    Old_age
>> Always       -       0
>>  11 Calibration_Retry_Count 0x0032   100   253   000    Old_age
>> Always       -       0
>>  12 Power_Cycle_Count       0x0032   100   100   000    Old_age
>> Always       -       81
>> 192 Power-Off_Retract_Count 0x0032   200   200   000    Old_age
>> Always       -       53
>> 193 Load_Cycle_Count        0x0032   136   136   000    Old_age
>> Always       -       192427
>> 194 Temperature_Celsius     0x0022   121   108   000    Old_age
>> Always       -       29
>> 196 Reallocated_Event_Count 0x0032   200   200   000    Old_age
>> Always       -       0
>> 197 Current_Pending_Sector  0x0032   200   200   000    Old_age
>> Always       -       0
>> 198 Offline_Uncorrectable   0x0030   200   200   000    Old_age
>> Offline      -       0
>> 199 UDMA_CRC_Error_Count    0x0032   200   200   000    Old_age
>> Always       -       0
>> 200 Multi_Zone_Error_Rate   0x0008   200   200   000    Old_age
>> Offline      -       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%     17481         -
>> # 2  Short offline       Completed without error       00%     15534         -
>>
>> 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.
>>
>> [dan@lamachine ~]$ sudo smartctl -a /dev/sde
>> smartctl 6.6 2017-11-05 r4594
>> [x86_64-linux-4.18.0-193.14.2.el8_2.x86_64] (local build)
>> Copyright (C) 2002-17, Bruce Allen, Christian Franke, www.smartmontools.org
>>
>> === START OF INFORMATION SECTION ===
>> Model Family:     Western Digital Green
>> Device Model:     WDC WD30EZRX-00D8PB0
>> Serial Number:    WD-WCC4N1294906
>> LU WWN Device Id: 5 0014ee 25f968120
>> Firmware Version: 80.00A80
>> User Capacity:    3,000,591,900,160 bytes [3.00 TB]
>> Sector Sizes:     512 bytes logical, 4096 bytes physical
>> Rotation Rate:    5400 rpm
>> Device is:        In smartctl database [for details use: -P show]
>> ATA Version is:   ACS-2 (minor revision not indicated)
>> SATA Version is:  SATA 3.0, 6.0 Gb/s (current: 6.0 Gb/s)
>> Local Time is:    Mon Oct  5 14:58:57 2020 BST
>> 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: (43200) 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: ( 433) minutes.
>> Conveyance self-test routine
>> recommended polling time: (   5) minutes.
>> SCT capabilities:        (0x7035) 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     0x002f   200   200   051    Pre-fail
>> Always       -       0
>>   3 Spin_Up_Time            0x0027   176   166   021    Pre-fail
>> Always       -       6158
>>   4 Start_Stop_Count        0x0032   100   100   000    Old_age
>> Always       -       80
>>   5 Reallocated_Sector_Ct   0x0033   200   200   140    Pre-fail
>> Always       -       0
>>   7 Seek_Error_Rate         0x002e   200   200   000    Old_age
>> Always       -       0
>>   9 Power_On_Hours          0x0032   075   075   000    Old_age
>> Always       -       18465
>>  10 Spin_Retry_Count        0x0032   100   253   000    Old_age
>> Always       -       0
>>  11 Calibration_Retry_Count 0x0032   100   253   000    Old_age
>> Always       -       0
>>  12 Power_Cycle_Count       0x0032   100   100   000    Old_age
>> Always       -       80
>> 192 Power-Off_Retract_Count 0x0032   200   200   000    Old_age
>> Always       -       53
>> 193 Load_Cycle_Count        0x0032   142   142   000    Old_age
>> Always       -       174015
>> 194 Temperature_Celsius     0x0022   121   107   000    Old_age
>> Always       -       29
>> 196 Reallocated_Event_Count 0x0032   200   200   000    Old_age
>> Always       -       0
>> 197 Current_Pending_Sector  0x0032   200   200   000    Old_age
>> Always       -       0
>> 198 Offline_Uncorrectable   0x0030   200   200   000    Old_age
>> Offline      -       0
>> 199 UDMA_CRC_Error_Count    0x0032   200   200   000    Old_age
>> Always       -       0
>> 200 Multi_Zone_Error_Rate   0x0008   200   200   000    Old_age
>> Offline      -       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%     17347         -
>> # 2  Short offline       Completed without error       00%     15414         -
>>
>> 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.
>>
>> [dan@lamachine ~]$
>>
>>
>> On Mon, 5 Oct 2020 at 14:44, Roman Mamedov <rm@romanrm.net> wrote:
>>>
>>> On Mon, 5 Oct 2020 14:10:25 +0100
>>> Daniel Sanabria <sanabria.d@gmail.com> wrote:
>>>
>>>> Hi all,
>>>>
>>>> Scrubbing ( # echo check >
>>>> /sys/devices/virtual/block/md1/md/sync_action) is killing my array :(
>>>>
>>>> I'm attaching details of the array and disks (bloody wd greens) as
>>>> well as journalctl errors providing some details about the issue.
>>>>
>>>> If you have any pointers on what might be the cause of this as well as
>>>> any recommendations on how to improve things please let me thank you
>>>> in advance ...
>>>>
>>>> I have backups of the data so happy to move this to a different setup
>>>> you might recommend (apps will be mostly reading from the array via
>>>> NFS since most of the content will be media).
>>>>
>>>> My suspicion is that a timer service is kicking in and disrupting the
>>>> scrubbing somehow but can't pinpoint what causes this.
>>>
>>> It looks like a drive is dropping off the bus and then failing to reidentify,
>>> could be bad cabling/controller/PSU, or just a bad drive. You should post
>>> "smartctl -a" of all drives as well.


  reply	other threads:[~2020-10-05 14:10 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-05 13:10 do i need to give up on this setup Daniel Sanabria
2020-10-05 13:17 ` Reindl Harald
2020-10-05 13:44 ` Roman Mamedov
     [not found]   ` <CAHscji0pNezf6xCpjWto5-21ayoCeLWm34GTYh5TSgxkOw90mw@mail.gmail.com>
2020-10-05 14:04     ` Roman Mamedov
2020-10-05 14:10       ` Reindl Harald [this message]
2020-10-05 14:28       ` Daniel Sanabria
2020-10-05 15:58         ` Roger Heflin
2020-10-06  7:56           ` Daniel Sanabria
2020-10-06  8:24             ` Reindl Harald
2020-10-06 10:53             ` Roger Heflin
2020-10-06 11:29               ` antlists
2020-10-06 14:59                 ` Roger Heflin
2020-10-09  1:00                   ` John Stoffel
2020-10-06 15:03               ` Tim Small
2020-10-06 16:01                 ` Daniel Sanabria
2020-10-07  7:26                   ` Tim Small

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=d60e92fc-a9aa-a48d-a3ac-dc3613d4686b@thelounge.net \
    --to=h.reindl@thelounge.net \
    --cc=linux-raid@vger.kernel.org \
    --cc=rm@romanrm.net \
    --cc=sanabria.d@gmail.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).