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-btrfs-zero-log(8)
-=================
-
-NAME
-----
-btrfs-zero-log - clear out log tree
-
-SYNOPSIS
---------
-*btrfs-zero-log* <dev>
-
-DESCRIPTION
------------
-*btrfs-zero-log* will remove the log tree if log tree is corrupt, which will
-allow you to mount the filesystem again.
-
-The common case where this happens has been fixed a long time ago,
-so it is unlikely that you will see this particular problem.
-
-One can determine whether *btrfs-zero-log* is needed according to the kernel
-backtrace:
-----
-? replay_one_dir_item+0xb5/0xb5 [btrfs]
-? walk_log_tree+0x9c/0x19d [btrfs]
-? btrfs_read_fs_root_no_radix+0x169/0x1a1 [btrfs]
-? btrfs_recover_log_trees+0x195/0x29c [btrfs]
-? replay_one_dir_item+0xb5/0xb5 [btrfs]
-? btree_read_extent_buffer_pages+0x76/0xbc [btrfs]
-? open_ctree+0xff6/0x132c [btrfs]
-----
-
-If the errors are like above, then *btrfs-zero-log* should be used to clear
-the log and the filesystem may be mounted normally again.
-
-NOTE: If you use btrfs as the root filesystem, you may want to include
-*btrfs-zero-log* into initramdisk if the log problems hits you often.
-
-EXIT STATUS
------------
-*btrfs-zero-log* will return 0 if no error happened.
-Other exit code means some problems happened.
-
-SEE ALSO
---------
-`mkfs.btrfs`(8)