gdb+bochs调试linux0.11的总出现缺页中断问题。

    476 if (last_stop_reason == GDBSTUB_EXECUTION_BREAKPOINT ||
    477 last_stop_reason == GDBSTUB_TRACE)
    478 {
    479 write_signal(&buf[1], SIGTRAP);
    480 }
    481 else
    482 {
    483 write_signal(&buf[1], 0);
    484 }

    476 if (last_stop_reason == GDBSTUB_EXECUTION_BREAKPOINT ||
    477 last_stop_reason == GDBSTUB_TRACE)
    478 {
    479 write_signal(&buf[1], SIGTRAP);
    480 }
    481 else if (last_stop_reason == GDBSTUB_STOP_NO_REASON)
    482 {
    483 write_signal(&buf[1], SIGSEGV);
    484 }
    485 else
    486 {
    487 write_signal(&buf[1], 0);
    488 }

handle SIGSEGV nostop noprint ignore