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    Subject[PATCH 1/3] kgdb,ppc: do not set kgdb_single_step on ppc
    Date
    The kgdb_single_step flag has the possibility to indefinitely
    hang the system on an SMP system.

    The x86 arch have the same problem, and that problem was fixed by
    commit 8097551d9ab9b9e3630(kgdb,x86: do not set kgdb_single_step
    on x86). This patch does the same behaviors as x86's patch.

    Signed-off-by: Dongdong Deng <dongdong.deng@windriver.com>
    Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
    Signed-off-by: Tiejun Chen <tiejun.chen@windriver.com>
    ---
    arch/powerpc/kernel/kgdb.c | 1 -
    1 files changed, 0 insertions(+), 1 deletions(-)

    diff --git a/arch/powerpc/kernel/kgdb.c b/arch/powerpc/kernel/kgdb.c
    index 782bd0a..bbabc5a 100644
    --- a/arch/powerpc/kernel/kgdb.c
    +++ b/arch/powerpc/kernel/kgdb.c
    @@ -410,7 +410,6 @@ int kgdb_arch_handle_exception(int vector, int signo, int err_code,
    #else
    linux_regs->msr |= MSR_SE;
    #endif
    - kgdb_single_step = 1;
    atomic_set(&kgdb_cpu_doing_single_step,
    raw_smp_processor_id());
    }
    --
    1.5.6


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