The SIGALRM never fires

[PoLiang]

I know there is a similiar ticket, but it has been there for more than 4 months. I want to report this issue and provide VBOX.log file.

I run the program:
#include <stdio.h>
#include <stdlib.h>
#include <signal.h>
#include <sys/time.h>

#define INTERVAL 10

void alarm_wakeup (int i)
{

signal(SIGALRM,alarm_wakeup);
printf("%d sec up partner, Wakeup!!!\n",INTERVAL);
exit(0);

}

int main ()
{

struct itimerval tout_val;

tout_val.it_interval.tv_sec = 0;
tout_val.it_interval.tv_usec = 0;
tout_val.it_value.tv_sec = INTERVAL; /* set timer for "INTERVAL (10) seconds */
tout_val.it_value.tv_usec = 0;
setitimer(ITIMER_REAL, &tout_val,0);

signal(SIGALRM,alarm_wakeup); /* set the Alarm signal capture */

while (1);

return 0;

}

SIGALRM never files.

Compiler: gcc

guest OS: Ubuntu 12.04 Linux 3.2.0-24-generic-pae i686

host OS: Windows Vista

[Frank Mehnert]

This was most likely fixed in VBox 4.2.8.