[GitHub] [incubator-nuttx] xiaoxiang781216 opened a new issue #1213: Does memory leak in nxsched_release_tcb for KERNEL mode?

[GitBox <gi...@apache.org>]

xiaoxiang781216 opened a new issue #1213:
URL: https://github.com/apache/incubator-nuttx/issues/1213


   ```
         if (tcb->stack_alloc_ptr &&
             (tcb->flags & TCB_FLAG_CUSTOM_STACK) == 0)
           {
   #ifdef CONFIG_BUILD_KERNEL
             /* If the exiting thread is not a kernel thread, then it has an
              * address environment.  Don't bother to release the stack memory
              * in this case... There is no point since the memory lies in the
              * user memory region that will be destroyed anyway (and the
              * address environment has probably already been destroyed at
              * this point.. so we would crash if we even tried it).  But if
              * this is a privileged group, when we still have to release the
              * memory using the kernel allocator.
              */
   
             if ((tcb->flags & TCB_FLAG_TTYPE_MASK) == TCB_FLAG_TTYPE_KERNEL)
   #endif
               {
                 up_release_stack(tcb, ttype);
               }
           }
   ```
   Yes, address environment will free the memory when process exit, but the stack memory can't be reused before that.  So this is still a memory leak.


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[GitHub] [incubator-nuttx] patacongo closed issue #1213: Does memory leak in nxsched_release_tcb for KERNEL mode?

[GitBox <gi...@apache.org>]

patacongo closed issue #1213:
URL: https://github.com/apache/incubator-nuttx/issues/1213


   


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