On 01.02.2021 23:08 Martin Raiber wrote: > On 27.01.2021 22:03 Chris Murphy wrote: >> On Wed, Jan 27, 2021 at 10:27 AM Martin Raiber <mar...@urbackup.org> wrote: >>> Hi, >>> >>> seems 5.10.8 still has the ENOSPC issue when compression is used >>> (compress-force=zstd,space_cache=v2): >>> >>> Jan 27 11:02:14 kernel: [248571.569840] ------------[ cut here >>> ]------------ >>> Jan 27 11:02:14 kernel: [248571.569843] BTRFS: Transaction aborted (error >>> -28) >>> Jan 27 11:02:14 kernel: [248571.569845] BTRFS: error (device dm-0) in >>> add_to_free_space_tree:1039: errno=-28 No space left >>> Jan 27 11:02:14 kernel: [248571.569848] BTRFS info (device dm-0): forced >>> readonly >>> Jan 27 11:02:14 kernel: [248571.569851] BTRFS: error (device dm-0) in >>> add_to_free_space_tree:1039: errno=-28 No space left >>> Jan 27 11:02:14 kernel: [248571.569852] BTRFS: error (device dm-0) in >>> __btrfs_free_extent:3270: errno=-28 No space left >>> Jan 27 11:02:14 kernel: [248571.569854] BTRFS: error (device dm-0) in >>> btrfs_run_delayed_refs:2191: errno=-28 No space left >>> Jan 27 11:02:14 kernel: [248571.569898] WARNING: CPU: 3 PID: 21255 at >>> fs/btrfs/free-space-tree.c:1039 add_to_free_space_tree+0xe8/0x130 >>> Jan 27 11:02:14 kernel: [248571.569913] BTRFS: error (device dm-0) in >>> __btrfs_free_extent:3270: errno=-28 No space left >>> Jan 27 11:02:14 kernel: [248571.569939] Modules linked in: >>> Jan 27 11:02:14 kernel: [248571.569966] BTRFS: error (device dm-0) in >>> btrfs_run_delayed_refs:2191: errno=-28 No space left >>> Jan 27 11:02:14 kernel: [248571.569992] bfq zram bcache crc64 loop >>> dm_crypt xfs dm_mod st sr_mod cdrom nf_tables nfnetlink iptable_filter >>> bridge stp llc intel_powerclamp coretemp k$ >>> Jan 27 11:02:14 kernel: [248571.570075] CPU: 3 PID: 21255 Comm: >>> kworker/u50:22 Tainted: G I 5.10.8 #1 >>> Jan 27 11:02:14 kernel: [248571.570076] Hardware name: Dell Inc. PowerEdge >>> R510/0DPRKF, BIOS 1.13.0 03/02/2018 >>> Jan 27 11:02:14 kernel: [248571.570079] Workqueue: events_unbound >>> btrfs_async_reclaim_metadata_space >>> Jan 27 11:02:14 kernel: [248571.570081] RIP: >>> 0010:add_to_free_space_tree+0xe8/0x130 >>> Jan 27 11:02:14 kernel: [248571.570082] Code: 55 50 f0 48 0f ba aa 40 0a >>> 00 00 02 72 22 83 f8 fb 74 4c 83 f8 e2 74 47 89 c6 48 c7 c7 b8 39 49 82 89 >>> 44 24 04 e8 8a 99 4a 00 <0f> 0b 8$ >>> Jan 27 11:02:14 kernel: [248571.570083] RSP: 0018:ffffc90009c57b88 EFLAGS: >>> 00010282 >>> Jan 27 11:02:14 kernel: [248571.570084] RAX: 0000000000000000 RBX: >>> 0000000000004000 RCX: 0000000000000027 >>> Jan 27 11:02:14 kernel: [248571.570085] RDX: 0000000000000027 RSI: >>> 0000000000000004 RDI: ffff888617a58b88 >>> Jan 27 11:02:14 kernel: [248571.570086] RBP: ffff8889ecb874e0 R08: >>> ffff888617a58b80 R09: 0000000000000000 >>> Jan 27 11:02:14 kernel: [248571.570087] R10: 0000000000000001 R11: >>> ffffffff822372e0 R12: 0000005741510000 >>> Jan 27 11:02:14 kernel: [248571.570087] R13: ffff8884e05727e0 R14: >>> ffff88815ae4fc00 R15: ffff88815ae4fdd8 >>> Jan 27 11:02:14 kernel: [248571.570088] FS: 0000000000000000(0000) >>> GS:ffff888617a40000(0000) knlGS:0000000000000000 >>> Jan 27 11:02:14 kernel: [248571.570089] CS: 0010 DS: 0000 ES: 0000 CR0: >>> 0000000080050033 >>> Jan 27 11:02:14 kernel: [248571.570090] CR2: 00007eb4a3a4f00a CR3: >>> 000000000260a005 CR4: 00000000000206e0 >>> Jan 27 11:02:14 kernel: [248571.570091] Call Trace: >>> Jan 27 11:02:14 kernel: [248571.570097] >>> __btrfs_free_extent.isra.0+0x56a/0xa10 >>> Jan 27 11:02:14 kernel: [248571.570100] >>> __btrfs_run_delayed_refs+0x659/0xf20 >>> Jan 27 11:02:14 kernel: [248571.570102] btrfs_run_delayed_refs+0x73/0x200 >>> Jan 27 11:02:14 kernel: [248571.570103] flush_space+0x4e8/0x5e0 >>> Jan 27 11:02:14 kernel: [248571.570105] ? >>> btrfs_get_alloc_profile+0x66/0x1b0 >>> Jan 27 11:02:14 kernel: [248571.570106] ? >>> btrfs_get_alloc_profile+0x66/0x1b0 >>> Jan 27 11:02:14 kernel: [248571.570107] >>> btrfs_async_reclaim_metadata_space+0x107/0x3a0 >>> Jan 27 11:02:14 kernel: [248571.570111] process_one_work+0x1b6/0x350 >>> Jan 27 11:02:14 kernel: [248571.570112] worker_thread+0x50/0x3b0 >>> Jan 27 11:02:14 kernel: [248571.570114] ? process_one_work+0x350/0x350 >>> Jan 27 11:02:14 kernel: [248571.570116] kthread+0xfe/0x140 >>> Jan 27 11:02:14 kernel: [248571.570117] ? kthread_park+0x90/0x90 >>> Jan 27 11:02:14 kernel: [248571.570120] ret_from_fork+0x22/0x30 >>> Jan 27 11:02:14 kernel: [248571.570122] ---[ end trace 568d2f30de65b1c0 >>> ]--- >>> Jan 27 11:02:14 kernel: [248571.570123] BTRFS: error (device dm-0) in >>> add_to_free_space_tree:1039: errno=-28 No space left >>> Jan 27 11:02:14 kernel: [248571.570151] BTRFS: error (device dm-0) in >>> __btrfs_free_extent:3270: errno=-28 No space left >>> Jan 27 11:02:14 kernel: [248571.570178] BTRFS: error (device dm-0) in >>> btrfs_run_delayed_refs:2191: errno=-28 No space left >>> >>> >>> btrfs fi usage: >>> >>> Overall: >>> Device size: 931.49GiB >>> Device allocated: 931.49GiB >>> Device unallocated: 1.00MiB >>> Device missing: 0.00B >>> Used: 786.39GiB >>> Free (estimated): 107.69GiB (min: 107.69GiB) >>> Data ratio: 1.00 >>> Metadata ratio: 1.00 >>> Global reserve: 512.00MiB (used: 0.00B) >>> Multiple profiles: no >>> >>> Data,single: Size:884.48GiB, Used:776.79GiB (87.82%) >>> /dev/mapper/LUKS-RC-a6414fd731ce4f878af44c3987bce533 884.48GiB >>> >>> Metadata,single: Size:47.01GiB, Used:9.59GiB (20.41%) >>> /dev/mapper/LUKS-RC-a6414fd731ce4f878af44c3987bce533 47.01GiB >>> >>> System,single: Size:4.00MiB, Used:144.00KiB (3.52%) >>> /dev/mapper/LUKS-RC-a6414fd731ce4f878af44c3987bce533 4.00MiB >>> >>> Unallocated: >>> /dev/mapper/LUKS-RC-a6414fd731ce4f878af44c3987bce533 1.00MiB >> Can you mount or remount with enospc_debug, and reproduce the problem? >> That'll include some debug info that might be helpful to a developing >> coming across this report. Also it might help: >> >> cd /sys/fs/btrfs/$UUID/allocation >> grep -R . >> >> And post that too. The $UUID is the file system UUID for this specific >> file system, as reported by blkid or lsblk -f. >> > Disabled compression, but ENOSPC still occurs (Compared with 5.4 where there > is only a ENOSPC issue when compression is used). Here is the kernel log with > enospc_debug: > > https://gist.github.com/uroni/357b9904294898658eba9d9fca1f3a39 > > Machine was rebooted before I could print the allocations. > > Now I'm trying if the problem goes away with space_cache=v1 (since it is > __add_to_free_space_tree that fails with ENOSPC). > Disabling space cache helped with this server (no errors since). But I got this without space cache on another server:
Mar 5 22:42:24 kernel: [284818.567487] ------------[ cut here ]------------ Mar 5 22:42:24 kernel: [284818.567491] BTRFS: error (device dm-0) in btrfs_run_delayed_refs:2191: errno=-28 No space left Mar 5 22:42:24 kernel: [284818.567493] BTRFS: Transaction aborted (error -28) Mar 5 22:42:24 kernel: [284818.567525] BTRFS info (device dm-0): forced readonly Mar 5 22:42:24 kernel: [284818.567539] WARNING: CPU: 3 PID: 1798217 at fs/btrfs/extent-tree.c:2191 btrfs_run_delayed_refs+0x1aa/0x200 Mar 5 22:42:24 kernel: [284818.567540] Modules linked in: zram bcache crc64 loop dm_crypt bfq xfs dm_mod st sr_mod cdrom intel_powerclamp coretemp kvm_intel dcdbas snd_pcm mgag200 snd_timer kvm snd drm_kms_helper soundcore iTCO_wdt $ Mar 5 22:42:24 kernel: [284818.567593] CPU: 3 PID: 1798217 Comm: kworker/u50:21 Tainted: G I 5.10.16 #1 Mar 5 22:42:24 kernel: [284818.567594] Hardware name: Dell Inc. PowerEdge R510/0DPRKF, BIOS 1.13.0 03/02/2018 Mar 5 22:42:24 kernel: [284818.567597] Workqueue: events_unbound btrfs_async_reclaim_metadata_space Mar 5 22:42:24 kernel: [284818.567599] RIP: 0010:btrfs_run_delayed_refs+0x1aa/0x200 Mar 5 22:42:24 kernel: [284818.567601] Code: 54 24 50 f0 48 0f ba aa 40 0a 00 00 02 72 20 83 f8 fb 74 3c 83 f8 e2 74 37 89 c6 48 c7 c7 38 37 49 82 89 04 24 e8 d8 2a 54 00 <0f> 0b 8b 04 24 89 c1 ba 8f 08 00 00 4c 89 e7 89 04 24 48 c7$ Mar 5 22:42:24 kernel: [284818.567602] RSP: 0018:ffffc90009d8fd80 EFLAGS: 00010282 Mar 5 22:42:24 kernel: [284818.567603] RAX: 0000000000000000 RBX: 00000000001f3e50 RCX: 0000000000000027 Mar 5 22:42:24 kernel: [284818.567604] RDX: 0000000000000027 RSI: 00000000ffff7fff RDI: ffff888617a58b88 Mar 5 22:42:24 kernel: [284818.567605] RBP: ffff88806a99a378 R08: ffff888617a58b80 R09: ffffc90009d8fb98 Mar 5 22:42:24 kernel: [284818.567605] R10: 0000000000000001 R11: 0000000000000001 R12: ffff888471f4f7b8 Mar 5 22:42:24 kernel: [284818.567606] R13: ffff888471f4f7b8 R14: ffff8886375fc400 R15: 0000000000000004 Mar 5 22:42:24 kernel: [284818.567607] FS: 0000000000000000(0000) GS:ffff888617a40000(0000) knlGS:0000000000000000 Mar 5 22:42:24 kernel: [284818.567608] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Mar 5 22:42:24 kernel: [284818.567609] CR2: 00007e8f683bf020 CR3: 000000000260a002 CR4: 00000000000206e0 Mar 5 22:42:24 kernel: [284818.567610] Call Trace: Mar 5 22:42:24 kernel: [284818.567617] flush_space+0x4e8/0x5e0 Mar 5 22:42:24 kernel: [284818.567619] ? btrfs_get_alloc_profile+0x66/0x1b0 Mar 5 22:42:24 kernel: [284818.567620] ? btrfs_get_alloc_profile+0x66/0x1b0 Mar 5 22:42:24 kernel: [284818.567622] btrfs_async_reclaim_metadata_space+0x107/0x3a0 Mar 5 22:42:24 kernel: [284818.567625] process_one_work+0x1b6/0x350 Mar 5 22:42:24 kernel: [284818.567627] worker_thread+0x50/0x3b0 Mar 5 22:42:24 kernel: [284818.567628] ? process_one_work+0x350/0x350 Mar 5 22:42:24 kernel: [284818.567630] kthread+0xfe/0x140 Mar 5 22:42:24 kernel: [284818.567631] ? kthread_park+0x90/0x90 Mar 5 22:42:24 kernel: [284818.567634] ret_from_fork+0x22/0x30 Mar 5 22:42:24 kernel: [284818.567636] ---[ end trace 4430fcd335eaeecc ]--- Mar 5 22:42:24 kernel: [284818.567638] BTRFS: error (device dm-0) in btrfs_run_delayed_refs:2191: errno=-28 No space left
