Program received signal ?, Unknown signal.

LinuxJoin

小弟是用android的 ndk-gdb (與gdb 基本相同)調(diào)試的.
構(gòu)造函數(shù)
void CPiPTimer::ConstructL(pTimerCallback pObserver)
{
        m_structFuncPkg = (ptimer_callback)malloc(sizeof(timer_callback));
        memset(m_structFuncPkg,0,sizeof(timer_callback));

        m_structFuncPkg->callbackFunc = pObserver;
        m_structFuncPkg->timer = &m_timer;

        m_pWindow = (CPiPWindow*)GLOBAL->g_window->obj;

        sigfillset (&m_sigset);
        sigdelset (&m_sigset, SIGRTMIN);
        sigprocmask (SIG_SETMASK, &m_sigset, NULL);

        sigfillset (&m_sa.sa_mask);
        m_sa.sa_flags = SA_SIGINFO;
        m_sa.sa_sigaction = handler;

        m_timerspec.it_value.tv_sec = 0;
        m_timerspec.it_value.tv_nsec = 50 * 1000 * 1000;//50毫秒后啟動定時器
        m_timerspec.it_interval.tv_sec = 0;
        m_timerspec.it_interval.tv_nsec = 75 * 1000 * 1000;//定時75毫秒

        m_timer_event.sigev_notify = SIGEV_SIGNAL;
        m_timer_event.sigev_signo = SIGRTMIN;
        m_timer_event.sigev_value.sival_ptr = (void *) (m_structFuncPkg);

        //創(chuàng)建定時器
        int ret = timer_create (CLOCK_REALTIME, &m_timer_event, &m_timer);
        if (ret < 0)
        {
                perror ("timer_create failed");
                exit (-1);
        }
}
void handler (int sig, siginfo_t * extra, void *cruft)
{
        ...
}
當小弟用SIGEV_SIGNAL的時候就會產(chǎn)生題目中的錯誤(Program received signal ?, Unknown signal.)
用SIGEV_NONE就沒有此錯誤，但是不能定時執(zhí)行 我想要執(zhí)行的 函數(shù)handler了，請大俠們指點，小弟謝過先