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<a href="https://gitlab.rtems.org/purple-affogato">Ivy Zhuang</a>
<a href="https://gitlab.rtems.org/rtems/rtos/rtems/-/issues/5517#note_144973">commented</a>:
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<p dir="auto" style="color: #3a383f; margin: 0 0 1rem;" align="initial"><span dir="" style="margin-top: 0;">Update on the debugging efforts: ran <code style="font-size: 90%; color: #18171d; word-wrap: break-word; background-color: #ececef; border-radius: .25rem; margin-top: 0; 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; white-space: pre-wrap; overflow-wrap: break-word; word-break: keep-all; padding: 0.125rem 0.25rem;">git bisect</code> to find the latest commit that caused the error and the result was </span><a href="https://gitlab.rtems.org/rtems/rtos/rtems/-/commit/ddd6f3d962dd96c1ac62d06d8aef05af5d60c674" title="score: Do not use deprecated volatile operation" class="gfm gfm-commit has-tooltip" data-original="<span dir="">this commit</span>" data-link="true" data-link-reference="true" data-commit="ddd6f3d962dd96c1ac62d06d8aef05af5d60c674" data-project="26" data-container="body" data-placement="top" data-reference-type="commit" style="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; font-size: 95%;"><span dir="" style="margin-top: 0;">this commit</span></a><span dir="">. Seems that when rewriting the logic of </span><code style="font-size: 90%; color: #18171d; word-wrap: break-word; background-color: #ececef; border-radius: .25rem; font-weight: inherit; overflow-wrap: break-word; white-space: break-spaces; 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_Dispatch_unnest</code>, a decrement was turned into an increment. Ran another test where I changed the +1 into a -1, and smpmrsp01 ran with no fatal errors.</p>
<p dir="auto" style="color: #3a383f; margin: 0;" align="initial">I'm good to open an MR with the fix anytime as it's a quick one. <gl-emoji title="thumbs up" data-name="thumbsup" data-unicode-version="6.0" style="margin-top: 0;">👍</gl-emoji></p>
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