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    s390/smp: fix smp_stop_cpu() for !CONFIG_SMP · e7c46c66
    Heiko Carstens 提交于
    smp_stop_cpu() should stop the current cpu even for !CONFIG_SMP.
    Otherwise machine_halt() will return and and the machine generates a
    panic instread of simply stopping the current cpu:
    
    Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000000
    
    CPU: 0 PID: 1 Comm: systemd-shutdow Not tainted 3.14.0-01527-g2b6ef16a6bc5 #10
    [...]
    Call Trace:
    ([<0000000000110db0>] show_trace+0xf8/0x158)
     [<0000000000110e7a>] show_stack+0x6a/0xe8
     [<000000000074dba8>] panic+0xe4/0x268
     [<0000000000140570>] do_exit+0xa88/0xb2c
     [<000000000016e12c>] SyS_reboot+0x1f0/0x234
     [<000000000075da70>] sysc_nr_ok+0x22/0x28
     [<000000007d5a09b4>] 0x7d5a09b4
    Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>
    Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
    e7c46c66
smp.c 26.2 KB