BUG? Bad page state at free_hot_cold_page

From: Tobias Bengtsson (tobbe_at_tobbe.nu)
Date: 01/30/04

  • Next message: Helge Hafting: "Re: 2.6.2-rc2-mm2"
    Date:	Fri, 30 Jan 2004 11:34:09 +0100
    To: linux-kernel@vger.kernel.org
    
    
    

    Hi, I've had this problem since at least 2.6.1.

    This output I got from a 2.6.2-rc2 compiled with the config attached

    I looked in include/linux/page-flags.h and found out that flags:0x20000094
    probably mean

    100000000000000000000010010100
                          | | |_PG_referenced
                          | |___PG_dirty
                          |______PG_slab

    which actually don't tell me anything, but you'll probably do better.

    this kind of error crash my machine (see below) almost daily.

    cheers, Tobias

    PS. Please cc me the replies to this thread as I'm not subscribed.

    ----8<----8<----
    Bad page state at free_hot_cold_page
    flags:0x20000094 mapping:00000000 mapped:0 count:0
    Backtrace:
    Call Trace:
     [bad_page+69/112] bad_page+0x45/0x70
     [free_hot_cold_page+61/256] free_hot_cold_page+0x3d/0x100
     [page_remove_rmap+356/368] page_remove_rmap+0x164/0x170
     [free_page_and_swap_cache+57/112] free_page_and_swap_cache+0x39/0x70
     [zap_pte_range+342/432] zap_pte_range+0x156/0x1b0
     [path_release+17/48] path_release+0x11/0x30
     [link_path_walk+164/2560] link_path_walk+0xa4/0xa00
     [zap_pmd_range+69/96] zap_pmd_range+0x45/0x60
     [unmap_page_range+47/96] unmap_page_range+0x2f/0x60
     [unmap_vmas+243/512] unmap_vmas+0xf3/0x200
     [exit_mmap+105/384] exit_mmap+0x69/0x180
     [mmput+92/128] mmput+0x5c/0x80
     [do_exit+334/1024] do_exit+0x14e/0x400
     [timer_interrupt+79/320] timer_interrupt+0x4f/0x140
     [rcu_check_quiescent_state+87/128] rcu_check_quiescent_state+0x57/0x80
     [rcu_process_callbacks+70/288] rcu_process_callbacks+0x46/0x120
     [tasklet_action+85/112] tasklet_action+0x55/0x70
     [do_softirq+91/160] do_softirq+0x5b/0xa0
     [do_group_exit+117/176] do_group_exit+0x75/0xb0
     [syscall_call+7/11] syscall_call+0x7/0xb

    Trying to fix it up, but a reboot is needed
    ----8<----8<----
    processor : 0
    vendor_id : AuthenticAMD
    cpu family : 6
    model : 10
    model name : AMD Athlon(TM) XP 2600+
    stepping : 0
    cpu MHz : 1916.547
    cache size : 512 KB
    fdiv_bug : no
    hlt_bug : no
    f00f_bug : no
    coma_bug : no
    fpu : yes
    fpu_exception : yes
    cpuid level : 1
    wp : yes
    flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca
    cmov pat pse36 mmx fxsr sse syscall mmxext 3dnowext 3dnow
    bogomips : 3776.51

    -- 
    http://tobbe.nu/.sig
    
    

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