bcachefs show-super errors

[jpsollie]

I saw an issue when I performed a "show-super" on the HDD device (bcachefs show-super /dev/sdb1):

`External UUID: 9cac6a05-1bd9-422a-9b93-2a2c53dc6e51 Internal UUID: 0781f15e-09b0-4ef2-967a-fb499dd0f9ac Label: Version: 11 Created: Wed May 20 08:01:51 2020 Block_size: 512 Btree node size: 256.0K Error action: remount-ro Clean: 0 Features: atomic_nlink,new_siphash,new_extent_overwrite,btree_ptr_v2,extents_above_btree_updates,btree_updates_journalled Metadata replicas: 1 Data replicas: 1 Metadata checksum type: crc32c (1) Data checksum type: crc32c (1) Compression type: none (0) Foreground write target: Group 0 (ssd) Background write target: Group 1 (hdd) Promote target: Group 0 (ssd) String hash type: siphash (2) 32 bit inodes: 0 GC reserve percentage: 8% Root reserve percentage: 0% Devices: 2 live, 2 total Sections: journal,members,replicas_v0,disk_groups,clean Superblock size: 11128

Members (size 120): Device 0: UUID: b544ac1f-de93-4555-bd71-4724bd6f641c Size: 107.3G Bucket size: 256.0K First bucket: 0 Buckets: 439556 Last mount: Wed May 20 08:14:01 2020 State: readwrite Group: ssd (0) Data allowed: journal,btree,data Has data: (none) Replacement policy: lru Discard: 1 Device 1: UUID: 3970eff4-f633-43f0-9933-fdf0f39e092f Size: 3.6T Bucket size: 512.0K First bucket: 0 Buckets: 7618540 Last mount: Wed May 20 08:14:01 2020 State: readwrite Group: hdd (1) Data allowed: journal,btree,data Has data: (none) Replacement policy: lru Discard: 1 ` To summarize: Discard is not active for HDD. I am 100% sure I did not enter that when performing the format operation0. Did format make the error? or is it an error in show-super?