On 10.03.2020 02:41 Qu Wenruo wrote: > > On 2020/3/10 上午8:05, Martin Raiber wrote: >> Hi, >> >> I get a enospc to remount-ro with 5.4.21. Details: > Sorry, the attached dmesg doesn't contain the transaction abort message. > > It only has the flooded ENOSPC from enospc_debug option. This isn't it? [76641.627535] BTRFS: error (device dm-0) in btrfs_drop_snapshot:5419: errno=-28 No space left [76641.627549] BTRFS info (device dm-0): forced readonly [...] > > Thanks, > Qu >> Linux 5.4.21 #1 SMP Fri Feb 21 03:20:26 CET 2020 x86_64 GNU/Linux >> >> btrfs fi usage /media/btrfs (after remount-ro) >> Overall: >> Device size: 511.99GiB >> Device allocated: 511.99GiB >> Device unallocated: 0.00B >> Device missing: 0.00B >> Used: 443.68GiB >> Free (estimated): 54.94GiB (min: 54.94GiB) >> Data ratio: 1.00 >> Metadata ratio: 1.00 >> Global reserve: 512.00MiB (used: 0.00B) >> >> Data,single: Size:490.98GiB, Used:436.04GiB (88.81%) >> /dev/mapper/LUKS-RC-cd46b6b4909845918eaa285c532476dc 490.98GiB >> >> Metadata,single: Size:21.01GiB, Used:7.65GiB (36.40%) >> /dev/mapper/LUKS-RC-cd46b6b4909845918eaa285c532476dc 21.01GiB >> >> System,single: Size:4.00MiB, Used:80.00KiB (1.95%) >> /dev/mapper/LUKS-RC-cd46b6b4909845918eaa285c532476dc 4.00MiB >> >> Unallocated: >> /dev/mapper/LUKS-RC-cd46b6b4909845918eaa285c532476dc 0.00B >> >> Mount options: >> /dev/mapper/LUKS-RC-cd46b6b4909845918eaa285c532476dc on /media/btrfs >> type btrfs >> (ro,noatime,compress-force=zstd:3,nossd,space_cache=v2,enospc_debug,skip_balance,metadata_ratio=8,subvolid=5,subvol=/) >> >> btrfs fi df /media/btrfs >> Data, single: total=490.98GiB, used=436.04GiB >> System, single: total=4.00MiB, used=80.00KiB >> Metadata, single: total=21.01GiB, used=7.65GiB >> GlobalReserve, single: total=512.00MiB, used=0.00B >> >> dmesg attached. >>
