Bios 5 - stack during TSK_delete

Hello expert,

I'm straggling on this problem for the last days. I'm working on Bios 5.42.1.09 on the C55. 

Some of my bios tasks are ad-hoc tasks, which created and deleted on run time via TSK_create and TSK_delete API.  The creation and deletion of these tasks are made by another manager task. The problem is that whenever I call the TSK_delete, the manager task hang on pending. I tried to assembly debug  the TSK_delete and found that it doesn't return from the lock2 function. I found in the forum that lock2 is pending on the MEM_mutex, but I don't  know why it locked.

/*

 *  ======== lock2 ========
 */
static Void lock2(Void)
{
    if (TSK_isTSK()) {
        LCK_pend(&_MEM_mutex, SYS_FOREVER);
    }
    else {
    SYS_abort("*** MEM lock NOT CALLED IN TSK CONTEXT");
    }
}

Is there any option to see the status of the _MEM_mutex and to find out who is responsible for the mem locking?

Thanks

Yossi.