Testing 4.9-rc3 on my big backup system running rsync. Saw 10 traces over the last day, I broke them down into groups for were they differ with a full trace at the bottom for reference. Hopefully useful to somebody. Everything is running fine so far. Can send all the full traces if someone is interested. 2 of these: trace6:[14843.507199] [<ffffffffa019b38c>] ? btrfs_alloc_tree_block+0x3bc/0x4d0 [btrfs] trace6-[14843.507254] [<ffffffffa0181e38>] ? __btrfs_cow_block+0x148/0x5d0 [btrfs] trace6-[14843.507294] [<ffffffffa0182464>] ? btrfs_cow_block+0x114/0x1d0 [btrfs] trace6-[14843.507334] [<ffffffffa01861d6>] ? btrfs_search_slot+0x206/0xa40 [btrfs] trace6-[14843.507376] [<ffffffffa0216708>] ? __btrfs_qgroup_release_data+0x88/0x120 [btrfs] 4 of these: trace8:[15611.350323] [<ffffffffa019b38c>] ? btrfs_alloc_tree_block+0x3bc/0x4d0 [btrfs] trace8-[15611.350378] [<ffffffffa017ec82>] ? leaf_space_used+0xd2/0x110 [btrfs] trace8-[15611.350417] [<ffffffffa0181e38>] ? __btrfs_cow_block+0x148/0x5d0 [btrfs] trace8-[15611.350458] [<ffffffffa0182464>] ? btrfs_cow_block+0x114/0x1d0 [btrfs] trace8-[15611.350498] [<ffffffffa01861d6>] ? btrfs_search_slot+0x206/0xa40 [btrfs] 1 each of the following 4 trace1:[14494.245397] [<ffffffffa019b38c>] ? btrfs_alloc_tree_block+0x3bc/0x4d0 [btrfs] trace1-[14494.245457] [<ffffffffa01d0f56>] ? read_extent_buffer_pages+0x1c6/0x2a0 [btrfs] trace1-[14494.245513] [<ffffffffa0181e38>] ? __btrfs_cow_block+0x148/0x5d0 [btrfs] trace1-[14494.245553] [<ffffffffa0182464>] ? btrfs_cow_block+0x114/0x1d0 [btrfs] trace1-[14494.245593] [<ffffffffa01861d6>] ? btrfs_search_slot+0x206/0xa40 [btrfs] -- trace10:[83879.470211] [<ffffffffa019b38c>] ? btrfs_alloc_tree_block+0x3bc/0x4d0 [btrfs] trace10-[83879.470259] [<ffffffff81094620>] ? autoremove_wake_function+0x30/0x30 trace10-[83879.470299] [<ffffffffa0181e38>] ? __btrfs_cow_block+0x148/0x5d0 [btrfs] trace10-[83879.470339] [<ffffffffa0182464>] ? btrfs_cow_block+0x114/0x1d0 [btrfs] trace10-[83879.470378] [<ffffffffa0185710>] ? push_leaf_left+0xf0/0x170 [btrfs] -- trace7:[15069.248346] [<ffffffffa019b38c>] ? btrfs_alloc_tree_block+0x3bc/0x4d0 [btrfs] trace7-[15069.248394] [<ffffffff81139ff5>] ? __activate_page+0x1b5/0x250 trace7-[15069.248423] [<ffffffff81139e40>] ? put_pages_list+0x70/0x70 trace7-[15069.248452] [<ffffffff81139cb8>] ? pagevec_lru_move_fn+0xb8/0xd0 trace7-[15069.248490] [<ffffffffa0181e38>] ? __btrfs_cow_block+0x148/0x5d0 [btrfs] -- trace9:[21545.901275] [<ffffffffa019b38c>] ? btrfs_alloc_tree_block+0x3bc/0x4d0 [btrfs] trace9-[21545.901323] [<ffffffff81087d8e>] ? update_curr+0x7e/0x100 trace9-[21545.901361] [<ffffffffa0181e38>] ? __btrfs_cow_block+0x148/0x5d0 [btrfs] trace9-[21545.901401] [<ffffffffa0182464>] ? btrfs_cow_block+0x114/0x1d0 [btrfs] trace9-[21545.901443] [<ffffffffa01861d6>] ? btrfs_search_slot+0x206/0xa40 [btrfs] A full one for reference $ cat trace10 [83879.469227] use_block_rsv: 214 callbacks suppressed [83879.469257] ------------[ cut here ]------------ [83879.469309] WARNING: CPU: 1 PID: 14025 at fs/btrfs/extent-tree.c:8325 btrfs_alloc_tree_block+0x3bc/0x4d0 [btrfs] [83879.469360] BTRFS: block rsv returned -28 [83879.469787] CPU: 1 PID: 14025 Comm: kworker/u34:4 Tainted: G W I 4.9.0-rc3 #1 [83879.469893] Workqueue: btrfs-endio-write btrfs_endio_write_helper [btrfs] [83879.469926] 0000000000000000 ffffffff812946c9 ffffc9000e5ab968 0000000000000000 [83879.469979] ffffffff8105a27f ffff8808198d8158 ffffc9000e5ab9b8 0000000000004000 [83879.470033] ffff8808198d8000 ffff88039e154f00 0000000000000000 ffffffff8105a2ea [83879.470087] Call Trace: [83879.470113] [<ffffffff812946c9>] ? dump_stack+0x46/0x5d [83879.470143] [<ffffffff8105a27f>] ? __warn+0xbf/0xe0 [83879.470170] [<ffffffff8105a2ea>] ? warn_slowpath_fmt+0x4a/0x50 [83879.470211] [<ffffffffa019b38c>] ? btrfs_alloc_tree_block+0x3bc/0x4d0 [btrfs] [83879.470259] [<ffffffff81094620>] ? autoremove_wake_function+0x30/0x30 [83879.470299] [<ffffffffa0181e38>] ? __btrfs_cow_block+0x148/0x5d0 [btrfs] [83879.470339] [<ffffffffa0182464>] ? btrfs_cow_block+0x114/0x1d0 [btrfs] [83879.470378] [<ffffffffa0185710>] ? push_leaf_left+0xf0/0x170 [btrfs] [83879.470418] [<ffffffffa0185e3a>] ? split_leaf+0x57a/0x710 [btrfs] [83879.470456] [<ffffffffa017ec82>] ? leaf_space_used+0xd2/0x110 [btrfs] [83879.470495] [<ffffffffa01868f6>] ? btrfs_search_slot+0x926/0xa40 [btrfs] [83879.470540] [<ffffffffa01c709e>] ? btrfs_get_token_32+0xee/0x110 [btrfs] [83879.470584] [<ffffffffa01a1118>] ? btrfs_csum_file_blocks+0x3f8/0x610 [btrfs] [83879.470643] [<ffffffffa01aefc1>] ? add_pending_csums.isra.48+0x41/0x60 [btrfs] [83879.470702] [<ffffffffa01b6a5b>] ? btrfs_finish_ordered_io+0x31b/0x640 [btrfs] [83879.470761] [<ffffffffa01ded63>] ? normal_work_helper+0xc3/0x2f0 [btrfs] [83879.470794] [<ffffffff81071c3b>] ? process_one_work+0x14b/0x400 [83879.470824] [<ffffffff8107225d>] ? worker_thread+0x5d/0x470 [83879.470853] [<ffffffff81072200>] ? rescuer_thread+0x310/0x310 [83879.470882] [<ffffffff81076ffb>] ? kthread+0xcb/0xf0 [83879.470909] [<ffffffff81076f30>] ? kthread_park+0x50/0x50 [83879.470939] [<ffffffff815053d2>] ? ret_from_fork+0x22/0x30 -- 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
