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    Subject[patch 081/164] ARM: 6166/1: Proper prefetch abort handling on pre-ARMv6
    2.6.33-stable review patch.  If anyone has any objections, please let me know.

    ------------------

    From: Anfei <anfei.zhou@gmail.com>

    commit 5e27fb78df95e027723af2c90ecc9b4527ae59e9 upstream.

    Instruction faults on pre-ARMv6 CPUs are interpreted as
    a 'translation fault', but do_translation_fault doesn't
    handle well if user mode trying to run instruction above
    TASK_SIZE, and result in the infinite retry of that
    instruction.

    Signed-off-by: Anfei Zhou <anfei.zhou@gmail.com>
    Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
    Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

    ---
    arch/arm/mm/fault.c | 3 +++
    1 file changed, 3 insertions(+)

    --- a/arch/arm/mm/fault.c
    +++ b/arch/arm/mm/fault.c
    @@ -386,6 +386,9 @@ do_translation_fault(unsigned long addr,
    if (addr < TASK_SIZE)
    return do_page_fault(addr, fsr, regs);

    + if (user_mode(regs))
    + goto bad_area;
    +
    index = pgd_index(addr);

    /*



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