On Thu, Feb 1, 2018 at 6:37 PM, Janos Toth F. <toth.f.janos@xxxxxxxxx> wrote: > Hmm... Actually, I just discovered a different machine with s=m=d=dup > (single HDD) spit out a few similar messages (a lot less and it took > longer for them to appear at all but it handles very little load): > > [ 333.197366] WARNING: CPU: 0 PID: 134 at fs/fs-writeback.c:2339 > __writeback_in > > odes_sb_nr+0xc6/0xd0 > [ 333.197371] CPU: 0 PID: 134 Comm: btrfs-transacti Not tainted > 4.15.0-gentoo # > > 2 > [ 333.197372] Hardware name: Dell Inc. Vostro 1700 > / , > > BIOS A07 04/21/2008 > [ 333.197373] RIP: 0010:__writeback_inodes_sb_nr+0xc6/0xd0 > [ 333.197376] RSP: 0018:ffff96eb80777e00 EFLAGS: 00010246 > [ 333.197378] RAX: 0000000000000000 RBX: ffff88d19a5dd000 RCX: 0000000000000000 > [ 333.197379] RDX: 0000000000000002 RSI: 0000000000001100 RDI: ffff88d19a4cb000 > [ 333.197380] RBP: ffff96eb80777e04 R08: fffffffffffffffe R09: 0000000000000003 > [ 333.197383] R10: ffff96eb80777d10 R11: 0000000000000400 R12: ffff88d19a0bc600 > [ 333.197384] R13: ffff88d19a96a5b8 R14: 0000000000014c0a R15: ffff88d19a96a5e0 > [ 333.197385] FS: 0000000000000000(0000) GS:ffff88d19fc00000(0000) > knlGS:00000 > > 00000000000 > [ 333.197387] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > [ 333.197389] CR2: 00007fd058028000 CR3: 00000000c6a0a000 CR4: 00000000000006f0 > [ 333.197390] Call Trace: > [ 333.197397] btrfs_commit_transaction+0x776/0x860 > [ 333.197399] ? start_transaction+0x99/0x380 > [ 333.197403] transaction_kthread+0x176/0x1a0 > [ 333.197404] ? btrfs_cleanup_transaction+0x490/0x490 > [ 333.197407] kthread+0x109/0x120 > [ 333.197411] ? __kthread_bind_mask+0x60/0x60 > [ 333.197413] ret_from_fork+0x35/0x40 > [ 333.197417] Code: 8d 74 24 08 e8 ec fd ff ff 48 89 ee 48 89 df e8 > d1 fe ff ff > > 48 8b 44 24 48 65 48 33 04 25 28 00 00 00 > 75 0b 48 83 c4 50 5b 5d c3 <0f> ff eb > > c0 e8 c1 af ef ff > 90 48 85 ff 53 48 c7 c3 60 5b 83 89 > [ 333.197459] ---[ end trace 4427bc8429f8bec7 ]--- No balance or block group relocation is mentioned in this. There are changes between 4.14 and 4.15 in fs/fs-writeback.c https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/diff/fs/fs-writeback.c?id=v4.15&id2=v4.14 -- Chris Murphy -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
