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    SubjectOops on 2.5.40, flush_tlb_mm
    Hi,
    Please keep my CC on any replies (i'm currently experiencing
    DNS problems and hence do not get lkml)

    Dorking around in mozilla did this, the machine had completely locked up
    so this was from the serial;

    Unable to handle kernel paging request at virtual address 5a5a5ad6
    printing eip:
    c0115f2f
    *pde = 00000000
    Oops: 0000

    CPU: 0
    EIP: 0060:[<c0115f2f>] Not tainted
    EFLAGS: 00010202
    EIP is at flush_tlb_mm+0x1f/0x90
    eax: c1ce01a0 ebx: 5a5a5a5a ecx: 00000000 edx: fffffffe
    esi: 00400000 edi: c759d418 ebp: 00100000 esp: c2749f04
    ds: 0068 es: 0068 ss: 0068
    Process mozilla-bin (pid: 1396, threadinfo=c2748000 task=c1ce01a0)
    Stack: c759d418 c01418ab 5a5a5a5a c759d418 c142d810 c0141a1a c142d810 c195263c
    c012c577 00000001 00000000 c1ce01a0 41500000 00100073 00000002 c195263c
    c0141c62 c195263c 41800000 41500000 00000025 00000025 c2fda834 00000073
    Call Trace:
    [<c01418ab>]change_protection+0x1bb/0x210
    [<c0141a1a>]mprotect_attempt_merge+0x11a/0x1d0
    [<c012c577>]update_process_times+0x27/0x30
    [<c0141c62>]mprotect_fixup+0x192/0x1b0
    [<c0141de7>]sys_mprotect+0x167/0x2f0
    [<c010bd67>]do_IRQ+0x1e7/0x200
    [<c0109477>]syscall_call+0x7/0xb

    Code: 23 53 7c 39 58 60 75 38 8b 40 5c 85 c0 74 08 0f 20 d8 0f 22

    (gdb) list *flush_tlb_mm+0x1f
    0xc0115f2f is in flush_tlb_mm (smp.c:451).
    446 void flush_tlb_mm (struct mm_struct * mm)
    447 {
    448 unsigned long cpu_mask;
    449
    450 preempt_disable();
    451 cpu_mask = mm->cpu_vm_mask & ~(1UL << smp_processor_id());
    452
    453 if (current->active_mm == mm) {
    454 if (current->mm)
    455 local_flush_tlb();

    --
    function.linuxpower.ca

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