Thank you for your reply so much. I'm afraid that My ubuntu can not connect to
the internet .
but as our test I guess it is relaeted to the kerne change, we tested the
latest release for OpenSuse Release version , Also this problem happend.
Some Demo Code
pthread_mutex_lock(&mut);
gettimeofday(&nwtm, NULL);
sync_timer.tv_sec = nwtm.tv_sec + timeout;
sync_timer.tv_nsec = nwtm.tv_usec * 1000;
syslog(LOG_ERR, "sync_wait: pthread_cond_timedwait entry.\n");
int retcode = pthread_cond_timedwait(&cond, &mut, &sync_timer);
syslog(LOG_ERR, "sync_wait: pthread_cond_timedwait end.\n");
pthread_mutex_unlock(&mut);
just after calling pthread_cond_timedwait, then Hibernate the System,
After some time , Wake it up. but the function call is never returned or
reponse
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https://bugs.launchpad.net/bugs/806844
Title:
pthread_cond_timedwait hang when hibernate and wake up
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