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    SubjectRe: 2.6.26.3-rt3 bug report
    On Tue, Aug 26, 2008 at 7:49 AM, Carsten Emde <Carsten.Emde@osadl.org> wrote:
    > Jon Masters wrote:
    >> On Tue, 2008-08-26 at 01:15 +0200, John Kacur wrote:
    >>> 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
    >> Er, does firefox run reliably on a non-RT 2.6.26.3 kernel? This many
    >> random calls to bad_page suggests more of a RAM problem.
    > Don't think so. Same problem here:
    > Bad page state in process 'bonobo-activati'
    > page:c18f66fc flags:0x40000000 mapping:c18f670c mapcount:0 count:0
    > Trying to fix it up, but a reboot is needed
    > Backtrace:
    > Pid: 4169, comm: bonobo-activati Not tainted 2.6.26.3-rt3 #2
    > [<c0438e52>] ? printk+0x14/0x1a
    > [<c026e8ef>] bad_page+0x4e/0x79
    > [<c026f3d3>] free_hot_cold_page+0x5b/0x1dc
    > [<c026f5a1>] free_hot_page+0xf/0x11
    > [<c026f5c3>] __free_pages+0x20/0x2b
    > [<c02789a0>] __pte_alloc+0x6f/0x77
    > [<c0278a4d>] handle_mm_fault+0xa5/0x56c
    > [<c0243a1c>] ? rt_mutex_down_read+0x15c/0x164
    > [<c0218759>] do_page_fault+0x2c1/0x674
    > [<c021b21d>] ? enqueue_task+0x5a/0x66
    > [<c043bb66>] ? __spin_unlock_irqrestore+0x24/0x42
    > [<c0241e4f>] ? rt_mutex_adjust_prio+0x1a/0x31
    > [<c043bc92>] ? __spin_lock_irqsave+0x1e/0x38
    > [<c021f37d>] ? try_to_wake_up+0x176/0x180
    > [<c043bb5a>] ? __spin_unlock_irqrestore+0x18/0x42
    > [<c0241e4f>] ? rt_mutex_adjust_prio+0x1a/0x31
    > [<c0241e61>] ? rt_mutex_adjust_prio+0x2c/0x31
    > [<c0241e61>] ? rt_mutex_adjust_prio+0x2c/0x31
    > [<c043a8f7>] ? rt_write_slowunlock+0x1cd/0x1d5
    > [<c027ccb0>] ? mprotect_fixup+0x238/0x282
    > [<c0259384>] ? audit_syscall_exit+0x2b6/0x2d1
    > [<c0204a4e>] ? resume_userspace+0x6/0x1c
    > [<c0218498>] ? do_page_fault+0x0/0x674
    > [<c043bf02>] error_code+0x72/0x78
    >

    Hi Carsten

    Any progress or ideas here?

    Thank you

    John


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