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* [BUG] Kernel 5.2: mount fails with can't read superblock on /dev/sdb1 (kernel 5.1.16 and 4.19 is fine)
@ 2019-07-12 11:05 mangoblues
  2019-07-12 12:18 ` Qu Wenruo
  0 siblings, 1 reply; 4+ messages in thread
From: mangoblues @ 2019-07-12 11:05 UTC (permalink / raw)
  To: linux-btrfs

Hi,

After updating to kernel 5.2 (archlinux):  2 out of my 7 btrfs drives
fail to mount on boot.

Error: can't read superblock on /dev/sdb1 and /dev/sdc1.

Going back to kernel 5.1.16 (and 4.19 also) fixes the problem. Btrfsck
reports the 2 drives are OK.

What can I do to fix this ?

Thanks.

$ btrfs fi show

Label: 'disk3'  uuid: 37d68257-a2bf-44e4-82e6-7bda35d3af3c
        Total devices 1 FS bytes used 1.77TiB
        devid    1 size 1.82TiB used 1.82TiB path /dev/sdb1

Label: 'disk4'  uuid: 8b72d7bd-603c-41c0-a395-a763ffe0de8b
        Total devices 1 FS bytes used 2.67TiB
        devid    1 size 2.73TiB used 2.73TiB path /dev/sdc1

Label: 'disk5'  uuid: 1728d60b-bdf2-4baa-8372-de7014d85e1d
        Total devices 1 FS bytes used 3.59TiB
        devid    1 size 3.64TiB used 3.64TiB path /dev/sdg1

Label: 'disk7'  uuid: 5e9437b5-bf53-4135-8b25-52539cfc491e
        Total devices 1 FS bytes used 6.66TiB
        devid    1 size 7.28TiB used 7.23TiB path /dev/sde1

Label: 'disk6'  uuid: ce325155-0922-4c62-9f5d-70cbc1726b5c
        Total devices 1 FS bytes used 3.47TiB
        devid    1 size 3.64TiB used 3.63TiB path /dev/sdd1

Label: 'disk1'  uuid: b9c65214-b1dc-4a97-b798-dc9639177880
        Total devices 1 FS bytes used 3.31TiB
        devid    1 size 3.64TiB used 3.62TiB path /dev/sdh1

Label: 'disk2'  uuid: d77e4116-de32-4ff4-938c-9c6eea6cdd42
        Total devices 1 FS bytes used 6.83TiB
        devid    1 size 7.28TiB used 7.26TiB path /dev/sdf1

^ permalink raw reply	[flat|nested] 4+ messages in thread

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2019-07-12 11:05 [BUG] Kernel 5.2: mount fails with can't read superblock on /dev/sdb1 (kernel 5.1.16 and 4.19 is fine) mangoblues
2019-07-12 12:18 ` Qu Wenruo
2019-07-12 12:21   ` Qu Wenruo
2019-07-16 10:48   ` mangoblues

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