I have a try to apport-bug, but it is not working on my ubunto
here is the full test code
#include <stdio.h>
#include <errno.h>
#include <pthread.h>
#include <sys/time.h>
#include <syslog.h>
pthread_mutex_t mut = PTHREAD_MUTEX_INITIALIZER;
pthread_cond_t cond = PTHREAD_COND_INITIALIZER;
int sync_wait(int timeout)
{
struct timeval nwtm;
struct timespec sync_timer;
int retcode = 0;
pthread_mutex_lock(&mut);
gettimeofday(&nwtm, NULL);
sync_timer.tv_sec = nwtm.tv_sec + timeout;
sync_timer.tv_nsec = nwtm.tv_usec * 1000;
retcode = pthread_cond_timedwait(&cond, &mut, &sync_timer);
//在ubuntu10.10下睡眠唤醒后能继续执行，但在ubuntu11.04下不行
pthread_mutex_unlock(&mut);
return retcode;
}
int sync_notify()
{
int retcode;
pthread_mutex_lock(&mut);
retcode = pthread_cond_signal(&cond);
pthread_mutex_unlock(&mut);
return retcode;
}
int main(int argc, char *argv[])
{
int icount = 0;
sync_notify();
while (1)
{
if (ETIMEDOUT == sync_wait(50))
{
syslog(LOG_ERR, "sync_wait is timeout.\n");
}
icount++;
if (10 < icount)
{
break;
}
}
return 1;
}
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https://bugs.launchpad.net/bugs/806844
Title:
pthread_cond_timedwait hang when hibernate and wake up
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