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    SubjectRe: 2.6.20-rc4-mm1
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    Date
    On Sun, 2007-01-14 at 11:46 +0100, Thomas Gleixner wrote:
    > > Boot proceeds, but gets stuck hard at:
    > > "Remounting root filesystem in read-write mode:"
    > >
    > > No SysRq-T, nothing.
    > >
    > > The above BUG seems unrelated to that. Investigating further.
    >
    > Bisect identified: git-block.patch

    Does only happen on 2 systems. Both have sata + raid1 setup. I managed
    to get a stacktrace from the SMP box. Sits there and sleeps forever.

    tglx

    [<c032ac64>] io_schedule+0x7a/0x9a
    [<c0157f89>] sleep_on_page+0x8/0xc
    [<c032ae45>] __wait_on_bit+0x36/0x5d
    [<c01580d8>] wait_on_page_bit+0x5b/0x61
    [<c0158a2b>] wait_on_page_writeback_range+0x4f/0xef
    [<c0158b0f>] filemap_fdatawait+0x44/0x49
    [<c0158da0>] filemap_write_and_wait+0x22/0x2d
    [<c0190e39>] sync_blockdev+0x17/0x1d
    [<c01a27af>] quota_sync_sb+0x33/0xd6
    [<c01a2874>] sync_dquots+0x22/0xfa
    [<c01757cf>] __fsync_super+0x17/0x66
    [<c0175829>] fsync_super+0xb/0x19
    [<c0175880>] do_remount_sb+0x49/0x101
    [<c0187f98>] do_mount+0x1ad/0x678
    [<c01884d2>] sys_mount+0x6f/0xa4
    [<c0103f6a>] sysenter_past_esp+0x5f/0x99


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