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<a href="https://gitlab.rtems.org/karthikey_kadati">Karthikey Kadati</a>
<a href="https://gitlab.rtems.org/rtems/rtos/rtems/-/issues/4612#note_137648">commented</a>:
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<p dir="auto" style="color: #3a383f; margin: 0 0 1rem;" align="initial">Hi everyone,</p>
<p dir="auto" style="color: #3a383f; margin: 0 0 1rem;" align="initial">I have verified the SMP environment using the <code style='font-size: 90%; color: #18171d; word-wrap: break-word; border-radius: .25rem; background-color: #ececef; margin-top: 0; font-weight: inherit; white-space: break-spaces; overflow-wrap: break-word; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; font-variant-ligatures: none; word-break: keep-all; padding: 0.125rem 0.25rem;'>smpmrsp01</code> test suite on the SIS/Leon3 simulator. As requested, I modified the taskset in <code style='font-size: 90%; color: #18171d; word-wrap: break-word; border-radius: .25rem; background-color: #ececef; font-weight: inherit; white-space: break-spaces; overflow-wrap: break-word; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; font-variant-ligatures: none; word-break: keep-all; padding: 0.125rem 0.25rem;'>init.c</code> to observe how it affects the execution results.</p>
<p dir="auto" style="color: #3a383f; margin: 0 0 1rem;" align="initial"><strong style="font-weight: 600; margin-top: 0;">What I changed:</strong> I modified the initial priority of the main task to 1 and adjusted the MrsP priority ceiling to 5. This created a scenario where the executing task's priority was higher than the resource's ceiling.</p>
<p dir="auto" style="color: #3a383f; margin: 0 0 1rem;" align="initial"><strong style="font-weight: 600; margin-top: 0;">Analysis of Results:</strong> This change actually caused the test to fail with an assertion at line 1411 in <code style='font-size: 90%; color: #18171d; word-wrap: break-word; border-radius: .25rem; background-color: #ececef; font-weight: inherit; white-space: break-spaces; overflow-wrap: break-word; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; font-variant-ligatures: none; word-break: keep-all; padding: 0.125rem 0.25rem;'>test_mrsp_obtain_and_release_with_help</code>. By checking the switch logs, I confirmed that the failure occurred because the task priorities no longer matched the specific validation logic for the helping mechanism. This was a great exercise to see how strictly the RTEMS 7 MrsP implementation and its test suite monitor priority elevation and task-to-processor affinity.</p>
<p dir="auto" style="color: #3a383f; margin: 0 0 1rem;" align="initial">Now that I have a solid understanding of how these protocols are structured in the modern SuperCore, I am moving forward with porting FMLP. I’ll be mapping the TU Dortmund implementation to the modern <code style='font-size: 90%; color: #18171d; word-wrap: break-word; border-radius: .25rem; background-color: #ececef; margin-top: 0; font-weight: inherit; white-space: break-spaces; overflow-wrap: break-word; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; font-variant-ligatures: none; word-break: keep-all; padding: 0.125rem 0.25rem;'>_Thread_queue</code> and <code style='font-size: 90%; color: #18171d; word-wrap: break-word; border-radius: .25rem; background-color: #ececef; font-weight: inherit; white-space: break-spaces; overflow-wrap: break-word; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; font-variant-ligatures: none; word-break: keep-all; padding: 0.125rem 0.25rem;'>_ISR_lock</code> primitives found in <code style='font-size: 90%; color: #18171d; word-wrap: break-word; border-radius: .25rem; background-color: #ececef; font-weight: inherit; white-space: break-spaces; overflow-wrap: break-word; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; font-variant-ligatures: none; word-break: keep-all; padding: 0.125rem 0.25rem;'>mrspimpl.h</code>.</p>
<p dir="auto" style="color: #3a383f; margin: 0;" align="initial">I'll share my progress on the FMLP port soon. Thanks!</p>
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