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    SubjectRe: kernel BUG at fs/btrfs/delayed-inode.c:1466!
    On Thu, Mar 08, 2012 at 01:10:45PM +0100, Jacek Luczak wrote:
    > kernel BUG at fs/btrfs/delayed-inode.c:1466!

    1461 ret = btrfs_delayed_item_reserve_metadata(trans, root, item);
    1462 /*
    1463 * we have reserved enough space when we start a new transaction,
    1464 * so reserving metadata failure is impossible.
    1465 */
    1466 BUG_ON(ret);

    > RAX: 00000000ffffffe4

    ENOSPC

    > [<ffffffffa03210e5>] ? __btrfs_unlink_inode+0x172/0x25e [btrfs]
    > [<ffffffffa032158c>] ? btrfs_rename+0x38b/0x55b [btrfs]

    rename reserves 20 blocks, but seems that's not enough. I've never seen
    a crash report in rename, and according to the stacktrace there's
    nothing suspicious (like selinux related).


    david


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