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    SubjectRe: 2.6.26.3-rt3 bug report
    On Mon, Aug 25, 2008 at 12:51 AM, John Kacur <jkacur@gmail.com> wrote:
    > I haven't seen this one before.
    >
    > Bad page state in process 'firefox-bin'
    > page:ffffe20001011f00 flags:0x0100000000000000
    > mapping:ffffe20001011f18 mapcount:0 count:0
    > Trying to fix it up, but a reboot is needed
    > Backtrace:
    > Pid: 4180, comm: firefox-bin Tainted: G W 2.6.26.3-rt3 #3
    >
    > Call Trace:
    > [<ffffffff80287a72>] bad_page+0x6f/0x9d
    > [<ffffffff8029184c>] ? inc_zone_page_state+0x5f/0x6b
    > [<ffffffff80289046>] free_hot_cold_page+0x88/0x1e6
    > [<ffffffff8028920b>] free_hot_page+0x10/0x12
    > [<ffffffff8028922a>] __free_pages+0x1d/0x26
    > [<ffffffff80294b95>] __pte_alloc+0x8e/0x99
    > [<ffffffff80294cff>] handle_mm_fault+0x15f/0x766
    > [<ffffffff8045f2d6>] ? rt_mutex_down_read_trylock+0x1ee/0x1f9
    > [<ffffffff804629d9>] do_page_fault+0x51d/0x92c
    > [<ffffffff8021251c>] ? native_sched_clock+0x2a/0x72
    > [<ffffffff8027c930>] ? ftrace_now+0x9/0xb
    > [<ffffffff80281548>] ? tracing_hist_preempt_start+0xf1/0x10d
    > [<ffffffff8021251c>] ? native_sched_clock+0x2a/0x72
    > [<ffffffff8027c930>] ? ftrace_now+0x9/0xb
    > [<ffffffff804602f9>] error_exit+0x0/0x56
    >
    > ---------------------------
    > | preempt count: 00000000 ]
    > | 0-level deep critical section nesting:
    > ----------------------------------------
    >

    Slightly different form today.

    Bad page state in process 'firefox-bin'
    page:ffffe20000daa360 flags:0x0100000000000000
    mapping:ffffe20000daa378 mapcount:0 count:0
    Trying to fix it up, but a reboot is needed
    Backtrace:
    Pid: 16955, comm: firefox-bin Not tainted 2.6.26.3-rt3 #3

    Call Trace:
    [<ffffffff80287a72>] bad_page+0x6f/0x9d
    [<ffffffff8029184c>] ? inc_zone_page_state+0x5f/0x6b
    [<ffffffff80289046>] free_hot_cold_page+0x88/0x1e6
    [<ffffffff8028920b>] free_hot_page+0x10/0x12
    [<ffffffff8028922a>] __free_pages+0x1d/0x26
    [<ffffffff80294b95>] __pte_alloc+0x8e/0x99
    [<ffffffff80294cff>] handle_mm_fault+0x15f/0x766
    [<ffffffff8045f2d6>] ? rt_mutex_down_read_trylock+0x1ee/0x1f9
    [<ffffffff804629d9>] do_page_fault+0x51d/0x92c
    [<ffffffff8027f57a>] ? trace_hardirqs_off+0x11d/0x136
    [<ffffffff8045feeb>] ? __spin_unlock_irqrestore+0x29/0x4d
    [<ffffffff8045feeb>] ? __spin_unlock_irqrestore+0x29/0x4d
    [<ffffffff8023168b>] ? hrtick_set+0x8f/0x100
    [<ffffffff8021251c>] ? native_sched_clock+0x2a/0x72
    [<ffffffff8027c930>] ? ftrace_now+0x9/0xb
    [<ffffffff80281a97>] ? tracing_hist_preempt_stop+0x2cb/0x2f5
    [<ffffffff8020c94d>] ? retint_swapgs+0xe/0x13
    [<ffffffff8045f52c>] ? trace_hardirqs_on_thunk+0x3a/0x3c
    [<ffffffff804602f9>] error_exit+0x0/0x56

    ---------------------------
    | preempt count: 00000000 ]
    | 0-level deep critical section nesting:
    ----------------------------------------


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