OK so I got an update to a 5.3.0-12 Ubuntu Kernel 3-4 day's ago and
started having problems on my user data drive a 1TB drive that that I
keep the usual ~/ directories (Documents , Downloads , Music, ect,ect)
on and link back to ~/ in 4 installs on this box , so whatever install
I'm booted to I have my data .

story hear 
https://www.kubuntuforums.net/showthread.php/75909-strange-problem-on-testing-with-hwe-edge-5-3-0-12-kernel

the error I get in dmesg ,,,
[  476.437134] BTRFS error (device sdb1): block=150186876928 read time
tree block corruption detected
[  476.437323] BTRFS critical (device sdb1): corrupt leaf: root=5
block=150186876928 slot=3 ino=49938688, invalid inode generation: has
18446744073709551492 expect [0, 80501]

and

[  762.622905] BTRFS error (device sdb1): block=150186876928 read time
tree block corruption detected
[  805.852391] BTRFS critical (device sdb1): corrupt leaf: root=5
block=149315502080 slot=0 ino=49938701, invalid inode generation: has
18446744073709551492 expect [0, 80501]

this seems to be 2 directorys  the first "dwhelper" I can still see
the directory but it lists as empty (it has 44 youtube videos in it )
the second you cant see the directory "steam" in Dolphin but "ls -la"
shows this "d????????? ? ? ? ? ? steam"

if I boot the 5.0.0-30 kernel and enter the "dwhelper" directory and
do "dmesg" their is this

[  199.522886] ata2.00: exception Emask 0x10 SAct 0x8000 SErr 0x2d0100
action 0x6 frozen
[  199.522891] ata2.00: irq_stat 0x08000000, interface fatal error
[  199.522893] ata2: SError: { UnrecovData PHYRdyChg CommWake 10B8B BadCRC }
[  199.522897] ata2.00: failed command: READ FPDMA QUEUED
[  199.522902] ata2.00: cmd 60/08:78:a8:57:f3/00:00:12:00:00/40 tag 15
ncq dma 4096 in
                        res 50/00:08:a8:57:f3/00:00:12:00:00/40 Emask
0x10 (ATA bus error)
[  199.522904] ata2.00: status: { DRDY }
[  199.522908] ata2: hard resetting link
[  199.837384] ata2: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
[  199.840579] ata2.00: configured for UDMA/133
[  199.840771] ata2: EH complete

but all works  as in I can access the files as normal

and in the 5.0.0-29 and 4.15.0-65 kernels no errors at all .

basic system info

Operating System: KDE neon Testing Edition
KDE Plasma Version: 5.16.90
KDE Frameworks Version: 5.63.0
Qt Version: 5.12.3
Kernel Version: 5.0.0-30-generic
OS Type: 64-bit
Processors: 8 × Intel® Core™ i7-4910MQ CPU @ 2.90GHz
Memory: 15.6 GiB of RAM

the web page https://btrfs.wiki.kernel.org/index.php/Tree-checker
asked to report an error like this hear , so her I am :)

any more info or tests you want me to run or provide I will ,,,,,, O
hears some drive info

vinny@vinny-Bonobo-Extreme:~$ sudo parted -l
[sudo] password for vinny:
Model: ATA HGST HTS725050A7 (scsi)
Disk /dev/sda: 500GB
Sector size (logical/physical): 512B/4096B
Partition Table: msdos
Disk Flags:

Number  Start   End    Size    Type      File system     Flags
 1      8225kB  323GB  323GB   primary   btrfs           boot
 3      323GB   379GB  56.3GB  primary   ext4
 4      379GB   496GB  117GB   extended
 6      379GB   436GB  57.0GB  logical   ext4
 5      436GB   496GB  59.8GB  logical   ext4
 2      496GB   500GB  4295MB  primary   linux-swap(v1)


Model: ATA HGST HTS721010A9 (scsi)
Disk /dev/sdb: 1000GB
Sector size (logical/physical): 512B/4096B
Partition Table: gpt
Disk Flags:

Number  Start   End     Size    File system  Name     Flags
 1      1049kB  1000GB  1000GB  btrfs        primary


Model: ATA Samsung SSD 860 (scsi)
Disk /dev/sdc: 250GB
Sector size (logical/physical): 512B/512B
Partition Table: loop
Disk Flags:

Number  Start  End    Size   File system  Flags
 1      0.00B  250GB  250GB  btrfs

hope we can help each other .

Charles V. Wright

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