HI/2 all, once again thanky you for taking time to look at this.
So i disabled discard in the mount options yesterday, recreated the
Fedora.qcow file outside of the /home subvolume, and copied it back to
/home.
It "appeared" ok for a while, but today i run scrub on /home again,
and sure enough:
ago 17 17:05:54 kerberos kernel: BTRFS error (device sda3): bdev
/dev/sda3 errs: wr 0, rd 0, flush 0, corrupt 64, gen 0
ago 17 17:05:54 kerberos kernel: BTRFS error (device sda3): unable to
fixup (regular) error at logical 422343614464 on dev /dev/sda3
ago 17 17:05:54 kerberos kernel: BTRFS error (device sda3): bdev
/dev/sda3 errs: wr 0, rd 0, flush 0, corrupt 65, gen 0
ago 17 17:05:54 kerberos kernel: BTRFS error (device sda3): unable to
fixup (regular) error at logical 422343618560 on dev /dev/sda3
ago 17 17:05:54 kerberos kernel: BTRFS error (device sda3): bdev
/dev/sda3 errs: wr 0, rd 0, flush 0, corrupt 66, gen 0
ago 17 17:05:54 kerberos kernel: BTRFS error (device sda3): unable to
fixup (regular) error at logical 422343630848 on dev /dev/sda3
ago 17 17:05:54 kerberos kernel: BTRFS error (device sda3): bdev
/dev/sda3 errs: wr 0, rd 0, flush 0, corrupt 67, gen 0
ago 17 17:05:54 kerberos kernel: BTRFS error (device sda3): unable to
fixup (regular) error at logical 422343634944 on dev /dev/sda3
ago 17 17:05:54 kerberos kernel: BTRFS error (device sda3): bdev
/dev/sda3 errs: wr 0, rd 0, flush 0, corrupt 68, gen 0
ago 17 17:05:54 kerberos kernel: BTRFS error (device sda3): unable to
fixup (regular) error at logical 422343639040 on dev /dev/sda3
ago 17 17:05:54 kerberos kernel: BTRFS error (device sda3): bdev
/dev/sda3 errs: wr 0, rd 0, flush 0, corrupt 69, gen 0
ago 17 17:05:54 kerberos kernel: BTRFS error (device sda3): unable to
fixup (regular) error at logical 422343643136 on dev /dev/sda3
ago 17 17:06:30 kerberos kernel: BTRFS error (device sda3): bdev
/dev/sda3 errs: wr 0, rd 0, flush 0, corrupt 70, gen 0
ago 17 17:06:30 kerberos kernel: BTRFS error (device sda3): unable to
fixup (regular) error at logical 441140600832 on dev /dev/sda3
ago 17 17:06:30 kerberos kernel: BTRFS error (device sda3): bdev
/dev/sda3 errs: wr 0, rd 0, flush 0, corrupt 71, gen 0
ago 17 17:06:30 kerberos kernel: BTRFS error (device sda3): unable to
fixup (regular) error at logical 441140629504 on dev /dev/sda3
root@kerberos:/home/groo# btrfs scrub start -B /home/
scrub done for ae9ae869-720d-4643-b673-6924d09b2fe0
scrub started at Thu Aug 17 17:05:10 2017 and finished after 00:01:20
total bytes scrubbed: 37.71GiB with 8 errors
error details: csum=8
corrected errors: 0, uncorrectable errors: 8, unverified errors: 0
ERROR: there are uncorrectable errors
this is what smartctl -x /ev/sda shows me:
root@kerberos:/home/groo# smartctl -x /dev/sda
smartctl 6.6 2016-05-31 r4324 [x86_64-linux-4.12.5-041205-generic] (local build)
Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Model Family: Samsung based SSDs
Device Model: Samsung SSD 850 EVO M.2 500GB
Serial Number: S33DNX0H812686V
LU WWN Device Id: 5 002538 d4130d027
Firmware Version: EMT21B6Q
User Capacity: 500.107.862.016 bytes [500 GB]
Sector Size: 512 bytes logical/physical
Rotation Rate: Solid State Device
Form Factor: M.2
Device is: In smartctl database [for details use: -P show]
ATA Version is: ACS-2, ATA8-ACS T13/1699-D revision 4c
SATA Version is: SATA 3.1, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is: Thu Aug 17 17:15:44 2017 -03
SMART support is: Available - device has SMART capability.
SMART support is: Enabled
AAM feature is: Unavailable
APM feature is: Unavailable
Rd look-ahead is: Enabled
Write cache is: Enabled
ATA Security is: Disabled, frozen [SEC2]
Wt Cache Reorder: Enabled
=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED
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: (0x53) 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.
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: ( 265) minutes.
SCT capabilities: (0x003d) SCT Status supported.
SCT Error Recovery Control supported.
SCT Feature Control supported.
SCT Data Table supported.
SMART Attributes Data Structure revision number: 1
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAGS VALUE WORST THRESH FAIL RAW_VALUE
5 Reallocated_Sector_Ct PO--CK 100 100 010 - 0
9 Power_On_Hours -O--CK 099 099 000 - 1753
12 Power_Cycle_Count -O--CK 099 099 000 - 395
177 Wear_Leveling_Count PO--C- 099 099 000 - 7
179 Used_Rsvd_Blk_Cnt_Tot PO--C- 100 100 010 - 0
181 Program_Fail_Cnt_Total -O--CK 100 100 010 - 0
182 Erase_Fail_Count_Total -O--CK 100 100 010 - 0
183 Runtime_Bad_Block PO--C- 100 100 010 - 0
187 Uncorrectable_Error_Cnt -O--CK 100 100 000 - 0
190 Airflow_Temperature_Cel -O--CK 068 050 000 - 32
195 ECC_Error_Rate -O-RC- 200 200 000 - 0
199 CRC_Error_Count -OSRCK 100 100 000 - 0
235 POR_Recovery_Count -O--C- 099 099 000 - 55
241 Total_LBAs_Written -O--CK 099 099 000 - 8386128219
||||||_ K auto-keep
|||||__ C event count
||||___ R error rate
|||____ S speed/performance
||_____ O updated online
|______ P prefailure warning
General Purpose Log Directory Version 1
SMART Log Directory Version 1 [multi-sector log support]
Address Access R/W Size Description
0x00 GPL,SL R/O 1 Log Directory
0x01 SL R/O 1 Summary SMART error log
0x02 SL R/O 1 Comprehensive SMART error log
0x03 GPL R/O 1 Ext. Comprehensive SMART error log
0x06 SL R/O 1 SMART self-test log
0x07 GPL R/O 1 Extended self-test log
0x09 SL R/W 1 Selective self-test log
0x10 GPL R/O 1 SATA NCQ Queued Error log
0x11 GPL R/O 1 SATA Phy Event Counters log
0x13 GPL R/O 1 SATA NCQ Send and Receive log
0x30 GPL,SL R/O 9 IDENTIFY DEVICE data log
0x80-0x9f GPL,SL R/W 16 Host vendor specific log
0xa1 SL VS 16 Device vendor specific log
0xa5 SL VS 16 Device vendor specific log
0xce SL VS 16 Device vendor specific log
0xe0 GPL,SL R/W 1 SCT Command/Status
0xe1 GPL,SL R/W 1 SCT Data Transfer
SMART Extended Comprehensive Error Log Version: 1 (1 sectors)
No Errors Logged
SMART Extended Self-test Log Version: 1 (1 sectors)
Num Test_Description Status Remaining
LifeTime(hours) LBA_of_first_error
# 1 Short offline Completed without error 00% 1504 -
# 2 Short offline Aborted by host 90% 857 -
# 3 Offline Completed without error 00% 857 -
# 4 Short offline Completed without error 00% 504 -
# 5 Short offline Aborted by host 70% 8 -
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
255 0 65535 Read_scanning was never started
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.
SCT Status Version: 3
SCT Version (vendor specific): 256 (0x0100)
SCT Support Level: 1
Device State: Active (0)
Current Temperature: 43 Celsius
Power Cycle Min/Max Temperature: 30/43 Celsius
Lifetime Min/Max Temperature: 22/50 Celsius
Under/Over Temperature Limit Count: 0/0
SCT Temperature History Version: 2
Temperature Sampling Period: 1 minute
Temperature Logging Interval: 10 minutes
Min/Max recommended Temperature: 0/70 Celsius
Min/Max Temperature Limit: 0/70 Celsius
Temperature History Size (Index): 128 (15)
Index Estimated Time Temperature Celsius
16 2017-08-16 20:00 ? -
17 2017-08-16 20:10 33 **************
18 2017-08-16 20:20 32 *************
19 2017-08-16 20:30 36 *****************
20 2017-08-16 20:40 33 **************
21 2017-08-16 20:50 33 **************
22 2017-08-16 21:00 34 ***************
23 2017-08-16 21:10 35 ****************
24 2017-08-16 21:20 34 ***************
25 2017-08-16 21:30 34 ***************
26 2017-08-16 21:40 35 ****************
27 2017-08-16 21:50 34 ***************
28 2017-08-16 22:00 34 ***************
29 2017-08-16 22:10 33 **************
30 2017-08-16 22:20 33 **************
31 2017-08-16 22:30 34 ***************
32 2017-08-16 22:40 35 ****************
33 2017-08-16 22:50 32 *************
... ..( 2 skipped). .. *************
36 2017-08-16 23:20 32 *************
37 2017-08-16 23:30 31 ************
... ..( 4 skipped). .. ************
42 2017-08-17 00:20 31 ************
43 2017-08-17 00:30 32 *************
44 2017-08-17 00:40 32 *************
45 2017-08-17 00:50 33 **************
46 2017-08-17 01:00 32 *************
47 2017-08-17 01:10 32 *************
48 2017-08-17 01:20 33 **************
49 2017-08-17 01:30 ? -
50 2017-08-17 01:40 32 *************
51 2017-08-17 01:50 47 ****************************
52 2017-08-17 02:00 48 *****************************
53 2017-08-17 02:10 34 ***************
54 2017-08-17 02:20 32 *************
55 2017-08-17 02:30 32 *************
56 2017-08-17 02:40 43 ************************
57 2017-08-17 02:50 43 ************************
58 2017-08-17 03:00 33 **************
59 2017-08-17 03:10 30 ***********
60 2017-08-17 03:20 36 *****************
61 2017-08-17 03:30 43 ************************
62 2017-08-17 03:40 42 ***********************
63 2017-08-17 03:50 32 *************
64 2017-08-17 04:00 31 ************
65 2017-08-17 04:10 36 *****************
66 2017-08-17 04:20 31 ************
... ..( 2 skipped). .. ************
69 2017-08-17 04:50 31 ************
70 2017-08-17 05:00 30 ***********
... ..( 43 skipped). .. ***********
114 2017-08-17 12:20 30 ***********
115 2017-08-17 12:30 31 ************
116 2017-08-17 12:40 31 ************
117 2017-08-17 12:50 31 ************
118 2017-08-17 13:00 ? -
119 2017-08-17 13:10 35 ****************
120 2017-08-17 13:20 36 *****************
121 2017-08-17 13:30 34 ***************
122 2017-08-17 13:40 32 *************
123 2017-08-17 13:50 36 *****************
124 2017-08-17 14:00 ? -
125 2017-08-17 14:10 32 *************
126 2017-08-17 14:20 33 **************
127 2017-08-17 14:30 31 ************
0 2017-08-17 14:40 ? -
1 2017-08-17 14:50 31 ************
2 2017-08-17 15:00 40 *********************
3 2017-08-17 15:10 33 **************
4 2017-08-17 15:20 32 *************
5 2017-08-17 15:30 31 ************
6 2017-08-17 15:40 31 ************
7 2017-08-17 15:50 30 ***********
8 2017-08-17 16:00 30 ***********
9 2017-08-17 16:10 33 **************
10 2017-08-17 16:20 31 ************
... ..( 3 skipped). .. ************
14 2017-08-17 17:00 31 ************
15 2017-08-17 17:10 43 ************************
SCT Error Recovery Control:
Read: Disabled
Write: Disabled
Device Statistics (GP/SMART Log 0x04) not supported
SATA Phy Event Counters (GP Log 0x11)
ID Size Value Description
0x0001 2 0 Command failed due to ICRC error
0x0002 2 0 R_ERR response for data FIS
0x0003 2 0 R_ERR response for device-to-host data FIS
0x0004 2 0 R_ERR response for host-to-device data FIS
0x0005 2 0 R_ERR response for non-data FIS
0x0006 2 0 R_ERR response for device-to-host non-data FIS
0x0007 2 0 R_ERR response for host-to-device non-data FIS
0x0008 2 0 Device-to-host non-data FIS retries
0x0009 2 17 Transition from drive PhyRdy to drive PhyNRdy
0x000a 2 17 Device-to-host register FISes sent due to a COMRESET
0x000b 2 0 CRC errors within host-to-device FIS
0x000d 2 0 Non-CRC errors within host-to-device FIS
0x000f 2 0 R_ERR response for host-to-device data FIS, CRC
0x0010 2 0 R_ERR response for host-to-device data FIS, non-CRC
0x0012 2 0 R_ERR response for host-to-device non-data FIS, CRC
0x0013 2 0 R_ERR response for host-to-device non-data FIS, non-CRC
is there a way to check if the above logical sectors are the ones
pointing to any of my sparse files? i have 2, fedora.qcow2 and
minishift.img.
thanks for everything so far
| Paulo Dias
| paulo.miguel.d...@gmail.com
Tempora mutantur, nos et mutamur in illis.
On Thu, Aug 17, 2017 at 4:10 PM, Chris Murphy <li...@colorremedies.com> wrote:
> On Thu, Aug 17, 2017 at 2:04 AM, Duncan <1i5t5.dun...@cox.net> wrote:
>
>> The point being, as I said, unless Samsung's changed policy recently,
>> there's no point in filing Linux related bug reports with them. All
>> you're likely to get is them putting their fingers in their ears while
>> singing loudly about not supporting Linux.
>
> OK good to know.
>
>
>> Unfortunately, I found all this out /after/ having bought a pair of 1 TB
>> Samsung evo 850s myself (after seeing them recommended here...), while
>> googling, as suggested above, samsung ssd queued trim (tho I actually put
>> in evo 850 since that's what I had), in ordered to see if I could safely
>> mount with discard and not have it hurt performance due to lack of queued-
>> trim support. Obviously not, so I'm running without discard, and letting
>> the systemd fstrim timer do its thing every week, instead.
>
> I have one of these:
>
> SAMSUNG MZVLV256HCHP-000H1
>
> It came in the HP Spectre laptop I'm using, and I've intentionally
> been using discard mount option to see if things go bad eventually.
> It's been 10 months. Zero problems.
>
>
>
>> But I'd have been rather unlikely to buy samsung if I knew they /refused/
>> to support Linux users because "anyone" can modify the code, that's for
>> sure!
>
> That's silly. Someone's just a bad manager (or a series of them).
> Samsung is a multi-tentacled beast. They clearly have another tentacle
> that supports Linux.
> https://en.wikipedia.org/wiki/F2FS
>
>
> --
> Chris Murphy
> --
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