On Sat, Feb 02, 2013 at 02:15:23PM +0100, Olivier Bonvalet wrote: > Then, 30 minutes later there is no change, so I suppose it's "frozen". > I hope it can help :
If in doubt, look if the disk is active. > [ 8081.557304] mount D ffff8802bfc12080 0 2642 2595 > 0x00000000 > [ 8081.557355] [<ffffffff8107ba5f>] ? arch_local_irq_restore+0x7/0x8 > [ 8081.557376] [<ffffffffa0066660>] ? btrfs_tree_lock+0xcf/0x224 [btrfs] > [ 8081.557399] [<ffffffffa0057941>] ? alloc_extent_buffer+0x6f/0x2d6 [btrfs] > [ 8081.557408] [<ffffffff8106051a>] ? abort_exclusive_wait+0x79/0x79 > [ 8081.557426] [<ffffffffa00338c4>] ? btrfs_init_new_buffer+0x5a/0xe2 [btrfs] > [ 8081.557443] [<ffffffffa0033aeb>] ? btrfs_alloc_free_block+0x19f/0x29d > [btrfs] > [ 8081.557454] [<ffffffff810a7e26>] ? __set_page_dirty_nobuffers+0xc4/0xe0 > [ 8081.557468] [<ffffffffa00261a8>] ? __btrfs_cow_block+0xf2/0x372 [btrfs] > [ 8081.557483] [<ffffffffa0026551>] ? btrfs_cow_block+0xee/0xfd [btrfs] > [ 8081.557498] [<ffffffffa00290e8>] ? btrfs_search_slot+0x234/0x660 [btrfs] > [ 8081.557513] [<ffffffffa002a475>] ? btrfs_insert_empty_items+0x5d/0xae > [btrfs] > [ 8081.557531] [<ffffffffa0032b0a>] ? run_clustered_refs+0x4b1/0x81d [btrfs] > [ 8081.557540] [<ffffffff8107ba5f>] ? arch_local_irq_restore+0x7/0x8 > [ 8081.557557] [<ffffffffa00350eb>] ? btrfs_run_delayed_refs+0xea/0x22e > [btrfs] > [ 8081.557577] [<ffffffffa00418c8>] ? btrfs_commit_transaction+0x3e8/0x927 > [btrfs] > [ 8081.557587] [<ffffffff8106051a>] ? abort_exclusive_wait+0x79/0x79 > [ 8081.557605] [<ffffffffa0041f8e>] ? __btrfs_end_transaction+0x158/0x2c4 > [btrfs] > [ 8081.557621] [<ffffffffa002ba70>] ? spin_unlock+0x5/0x8 [btrfs] > [ 8081.557638] [<ffffffffa0033f34>] ? btrfs_drop_snapshot+0x34b/0x4b5 [btrfs] > [ 8081.557659] [<ffffffffa0077b95>] ? merge_reloc_roots+0xe0/0x113 [btrfs] > [ 8081.557679] [<ffffffffa007874f>] ? btrfs_recover_relocation+0x26c/0x32b > [btrfs] This means that there was an interrupted balance in progress before, and now it tries to continue. You may optionally avoid restarting balance with 'skip_balance' mount option and then cancel the balance. david -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html