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    SubjectRe: [Bug #19062] Dirtiable inode bdi default != sb bdi btrfs
    On Sat, Oct 02, 2010 at 11:58:35PM +0200, Rafael J. Wysocki wrote:
    > On Saturday, October 02, 2010, Ted Ts'o wrote:
    > > On Sun, Sep 26, 2010 at 10:04:15PM +0200, Rafael J. Wysocki wrote:
    > > > The following bug entry is on the current list of known regressions
    > > > from 2.6.35. Please verify if it still should be listed and let the tracking team
    > > > know (either way).
    > > >
    > > >
    > > > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=19062
    > > > Subject : Dirtiable inode bdi default != sb bdi btrfs
    > > > Submitter : Cesar Eduardo Barros <cesarb@cesarb.net>
    > > > Date : 2010-09-23 0:54 (4 days old)
    > > > Message-ID : <4C9AA546.6050201@cesarb.net>
    > > > References : http://marc.info/?l=linux-kernel&m=128520328929595&w=2
    > >
    > > Note: I'm seeing this warning (Dirtiable inode bdi default != sb bdi)
    > > when I moved from 2.6.36-rc3 to 2.6.36-rc6, using ext4 as a root
    > > partition, and running mke2fs and e2fsck on ext2, ext3, and ext4 file
    > > systems. So I'm seeing this as a known regression from rc3 to rc6.
    > > Maybe it's different bug with ext4, but in any case, it's highly
    > > annoying.
    >
    > Thanks for the info. I wonder who should see this report.

    Oops, correction, the correct warning that I'm seeing is:

    Dirtiable inode bdi block != sb bdi block
    ^^^^^ ^^^^^
    ------------[ cut here ]------------
    WARNING: at /usr/projects/linux/ext4/fs/fs-writeback.c:87 inode_to_bdi+0x4e/0x5c()
    Hardware name:
    Dirtiable inode bdi block != sb bdi block
    Modules linked in:
    Pid: 21649, comm: mkfs.ext4 Tainted: G W 2.6.36-rc6-00016-gcc25699 #735
    Call Trace:
    [<c015a2e2>] warn_slowpath_common+0x6a/0x7f
    [<c020a762>] ? inode_to_bdi+0x4e/0x5c
    [<c015a36a>] warn_slowpath_fmt+0x2b/0x2f
    [<c020a762>] inode_to_bdi+0x4e/0x5c
    [<c020b6c3>] __mark_inode_dirty+0xaf/0x162
    [<c0202305>] file_update_time+0xcc/0xe9
    [<c01c68dd>] __generic_file_aio_write+0x136/0x28f
    [<c02145a4>] blkdev_aio_write+0x33/0x72
    [<c01f20da>] do_sync_write+0x8f/0xca
    [<c0647678>] ? mutex_unlock+0xd/0xf
    [<c030d528>] ? security_file_permission+0x27/0x2b
    [<c01f227c>] ? rw_verify_area+0x9d/0xc0
    [<c01f204b>] ? do_sync_write+0x0/0xca
    [<c01f2629>] vfs_write+0x85/0xe3
    [<c01f2725>] sys_write+0x40/0x62
    [<c064915d>] syscall_call+0x7/0xb
    ---[ end trace 1f39401760ab3a42 ]---
    - Ted


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