On 2017-09-08 13:33, Tomasz Chmielewski wrote:
Just got this one in dmesg with btrfs RAID-1 on top of Linux software
RAID-5.
Should say: with btrfs _single_ on top of Linux software RAID-5.
Why does it say "No space left" if we have 9 TB free there?
[233787.920933] BTRFS: Transaction aborted (error -28)
[233787.920953] ------------[ cut here ]------------
[233787.920971] WARNING: CPU: 1 PID: 2235 at
/home/kernel/COD/linux/fs/btrfs/extent-tree.c:6989
__btrfs_free_extent.isra.62+0xc2c/0xdb0 [btrfs]
[233787.920971] Modules linked in: nf_conntrack_ipv6 nf_defrag_ipv6
xt_NFLOG xt_conntrack ip6table_filter ip6_tables xt_CHECKSUM
iptable_mangle xt_tcpudp ipt_MASQUERADE nf_nat_masquerade_ipv4
xt_comment iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4
nf_nat nf_conntrack iptable_filter ip_tables x_tables nfnetlink_log
nfnetlink rpcsec_gss_krb5 auth_rpcgss nfsv4 nfs lockd grace fscache
sunrpc bluetooth ecdh_generic binfmt_misc veth bridge stp llc btrfs
intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel
kvm irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc
ppdev aesni_intel aes_x86_64 crypto_simd glue_helper cryptd eeepc_wmi
intel_cstate intel_rapl_perf input_leds asus_wmi sparse_keymap
serio_raw wmi_bmof parport_pc shpchp ie31200_edac tpm_infineon lpc_ich
parport
[233787.920992] mac_hid autofs4 raid0 multipath linear raid456
async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid10
raid6_pq libcrc32c raid1 ahci r8169 libahci mii wmi video
[233787.921001] CPU: 1 PID: 2235 Comm: btrfs-transacti Not tainted
4.13.0-041300-generic #201709031731
[233787.921002] Hardware name: System manufacturer System Product
Name/P8H77-M PRO, BIOS 9002 05/30/2014
[233787.921002] task: ffff943b0a779740 task.stack: ffffb1c4491a4000
[233787.921012] RIP: 0010:__btrfs_free_extent.isra.62+0xc2c/0xdb0
[btrfs]
[233787.921013] RSP: 0018:ffffb1c4491a7b08 EFLAGS: 00010286
[233787.921013] RAX: 0000000000000026 RBX: 00000cdf3dddc000 RCX:
0000000000000000
[233787.921014] RDX: 0000000000000000 RSI: ffff943b5fa4dc78 RDI:
ffff943b5fa4dc78
[233787.921014] RBP: ffffb1c4491a7bb0 R08: 0000000000000001 R09:
00000000000004c5
[233787.921015] R10: 00000013dd7ec000 R11: 0000000000000000 R12:
ffff943b0d1c0000
[233787.921015] R13: 00000000ffffffe4 R14: 0000000000000000 R15:
ffff943b0cadcee0
[233787.921016] FS: 0000000000000000(0000) GS:ffff943b5fa40000(0000)
knlGS:0000000000000000
[233787.921016] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[233787.921017] CR2: 00007ffc9230dde8 CR3: 000000075a009000 CR4:
00000000001406e0
[233787.921018] Call Trace:
[233787.921031] ? btrfs_merge_delayed_refs+0x62/0x550 [btrfs]
[233787.921039] __btrfs_run_delayed_refs+0x6f0/0x1380 [btrfs]
[233787.921047] btrfs_run_delayed_refs+0x6b/0x250 [btrfs]
[233787.921054] btrfs_write_dirty_block_groups+0x158/0x390 [btrfs]
[233787.921063] commit_cowonly_roots+0x221/0x2c0 [btrfs]
[233787.921071] btrfs_commit_transaction+0x46e/0x8d0 [btrfs]
[233787.921079] transaction_kthread+0x1a2/0x1c0 [btrfs]
[233787.921081] kthread+0x125/0x140
[233787.921088] ? btrfs_cleanup_transaction+0x500/0x500 [btrfs]
[233787.921089] ? kthread_create_on_node+0x70/0x70
[233787.921091] ret_from_fork+0x25/0x30
[233787.921092] Code: 3e d3 0f ff eb d0 44 89 ee 48 c7 c7 40 53 7a c0
e8 0b ba 3e d3 0f ff e9 76 fb ff ff 44 89 ee 48 c7 c7 40 53 7a c0 e8
f5 b9 3e d3 <0f> ff e9 f7 f4 ff ff 8b 55 20 48 89 c1 49 89 d8 48 c7 c6
20 54
[233787.921107] ---[ end trace f4e71e70fbc200d2 ]---
[233787.921132] BTRFS: error (device md2) in __btrfs_free_extent:6989:
errno=-28 No space left
[233787.921189] BTRFS info (device md2): forced readonly
[233787.921191] BTRFS: error (device md2) in
btrfs_run_delayed_refs:3009: errno=-28 No space left
[233789.507669] BTRFS warning (device md2): Skipping commit of aborted
transaction.
[233789.507672] BTRFS: error (device md2) in cleanup_transaction:1873:
errno=-28 No space left
# df -h /data
Filesystem Size Used Avail Use% Mounted on
/dev/md2 17T 7.3T 9.1T 45% /data
# btrfs fi show /data
Label: 'data' uuid: fddbd057-4fa6-4b2e-a9ca-993829bab4b9
Total devices 1 FS bytes used 7.21TiB
devid 1 size 16.30TiB used 12.99TiB path /dev/md2
# btrfs fi df /data
Data, single: total=12.84TiB, used=7.13TiB
System, DUP: total=8.00MiB, used=1.48MiB
Metadata, DUP: total=79.00GiB, used=77.87GiB
GlobalReserve, single: total=512.00MiB, used=0.00B
root@srv8 ~ # btrfs fi usage /data
Overall:
Device size: 16.30TiB
Device allocated: 12.99TiB
Device unallocated: 3.31TiB
Device missing: 0.00B
Used: 7.29TiB
Free (estimated): 9.01TiB (min: 7.36TiB)
Data ratio: 1.00
Metadata ratio: 2.00
Global reserve: 512.00MiB (used: 0.00B)
Data,single: Size:12.84TiB, Used:7.13TiB
/dev/md2 12.84TiB
Metadata,DUP: Size:79.00GiB, Used:77.87GiB
/dev/md2 158.00GiB
System,DUP: Size:8.00MiB, Used:1.48MiB
/dev/md2 16.00MiB
Unallocated:
/dev/md2 3.31TiB
Tomasz Chmielewski
https://lxadm.com
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