Global QProcess Object Hangs Program

[sandsaturn22]

Greetings!

I have noticed some strange behavior when creating a global QProcess object and starting a program with it. After the program returns from main() the program does not close but instead hangs the system. Additionally the following error is displayed "*** glibc detected *** ./test: corrupted double-linked list: 0x09bc2678 ***". This problem is reproducible using Qt 4.7.1 on Ubuntu 12.04 x86 with the following short program:

#include <stdio.h>
#include <unistd.h>
#include <QProcess>
 
QProcess process;
 
int main()
{
   printf("Starting process\n");
   process.start("ls");
   printf("Waiting for process to start\n");
   if (!process.waitForStarted())
   {
      printf("ERROR = %d\n", process.error());
      return -1;
   }
 
   printf("Waiting for process to finish\n");
   if (!process.waitForFinished())
   {
      printf("ERROR - process didn't complete\n");
   }
   process.close();
   printf("Process state before exiting = %d\n", process.state());
 
   return 0;
}

#include <stdio.h>
#include <unistd.h>
#include <QProcess>

QProcess process;

int main()
{
   printf("Starting process\n");
   process.start("ls");
   printf("Waiting for process to start\n");
   if (!process.waitForStarted())
   {
      printf("ERROR = %d\n", process.error());
      return -1;
   }
   
   printf("Waiting for process to finish\n");
   if (!process.waitForFinished())
   {
      printf("ERROR - process didn't complete\n");
   }
   process.close();
   printf("Process state before exiting = %d\n", process.state());

   return 0;
}

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When I upgrade Qt to 5.2.0 the problem is no longer reproducible. Searching the Qt Bug Tracker I don't see any documented issues on this problem. Does anyone know if this is a known bug that has been corrected?

Thanks!