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<a href="https://gitlab.rtems.org/c-mauderer">Christian Mauderer</a> created a merge request: <a href="https://gitlab.rtems.org/rtems/pkg/rtems-libbsd/-/merge_requests/169">!169</a>
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Project:Branches: c-mauderer/rtems-libbsd:cm/7-adapt-watchdog-token to rtems/pkg/rtems-libbsd:7-freebsd-14
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Author: Christian Mauderer
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Assignee: Christian Mauderer
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<h2 id="user-content-summary" dir="auto" style="margin-top: 0px; margin-bottom: 10px;" align="initial">Summary<a href="#summary" aria-label="Link to heading 'Summary'" data-heading-content="Summary" class="anchor" style="margin-top: 0px;"></a>
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<p dir="auto" style="color: #3a383f; margin: 0px 0px 1rem;" align="initial">The MR <a href="https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/1481" title="score: Discard a stale timeout" class="gfm gfm-merge_request" data-original="https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/1481" data-link="false" data-link-reference="true" data-merge-request="2995" data-project="26" data-project-path="rtems/rtos/rtems" data-iid="1481" data-container="body" data-placement="top" data-reference-type="merge_request" style="margin-top: 0px;">rtems/rtos/rtems!1481</a> added a new watchdog token. This MR adapts to that API change.</p>
<p dir="auto" style="color: #3a383f; margin: 0px 0px 1rem;" align="initial">Aditionally it fixes a bug that is related to the one in RTEMS that made the watchdog token necessary. Basically the following (also in the commit message):</p>
<p dir="auto" style="color: #3a383f; margin: 0px 0px 1rem;" align="initial">On SMP, this order of events was possible:</p>
<ol dir="auto" style="text-align: initial; margin: 0px 0px 1rem; padding: 0;">
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<p style="color: #3a383f; margin: 0px 0px 1rem;">Processor A: The timeout expired. The tick removed it from the list of pending timeouts.</p>
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<li style="line-height: 1.6em; margin-left: 25px; padding-left: 3px;">
<p style="color: #3a383f; margin: 0px 0px 1rem;">Processor B: A wakeup ended the sleep. The thread tried to cancel its timeout, but the tick already removed it.</p>
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<p style="color: #3a383f; margin: 0px 0px 1rem;">Processor B: The thread began its next sleep.</p>
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<li style="line-height: 1.6em; margin-left: 25px; padding-left: 3px;">
<p style="color: #3a383f; margin: 0px 0px 1rem;">Processor A: The tick called sleepq_timeout() for the old timeout. The routine saw a sleeping thread and ended the next sleep.</p>
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<p dir="auto" style="color: #3a383f; margin: 0px 0px 1rem;" align="initial">The next sleep then returned EWOULDBLOCK, although its own timeout did not expire.</p>
<h2 id="user-content-generative-ai" dir="auto" style="margin-top: 20px; margin-bottom: 10px;" align="initial">Generative AI<a href="#generative-ai" aria-label="Link to heading 'Generative AI'" data-heading-content="Generative AI" class="anchor" style="margin-top: 0px;"></a>
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<p dir="auto" style="color: #3a383f; margin: 0px 0px 1rem;" align="initial">None as a single prompt. Interactive Claude Code session: run the simulator test suites, diagnose each failure and fix the cause. I directed and reviewed every change.</p>
<h3 id="user-content-ai-model-used" dir="auto" style="margin-top: 1.5rem; margin-bottom: 1rem; font-weight: 600; font-size: 1.125rem; letter-spacing: inherit; line-height: 1.25; color: #18171d;" align="initial">AI model used<a href="#ai-model-used" aria-label="Link to heading 'AI model used'" data-heading-content="AI model used" class="anchor" style="margin-top: 0px;"></a>
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<p dir="auto" style="color: #3a383f; margin: 0px 0px 1rem;" align="initial">Claude Opus 5 and Claude Sonnet 5.5, through Claude Code.</p>
<h3 id="user-content-how-ai-was-used-for-the-contribution" dir="auto" style="margin-top: 1.5rem; margin-bottom: 1rem; font-weight: 600; font-size: 1.125rem; letter-spacing: inherit; line-height: 1.25; color: #18171d;" align="initial">How AI was used for the contribution<a href="#how-ai-was-used-for-the-contribution" aria-label="Link to heading 'How AI was used for the contribution'" data-heading-content="How AI was used for the contribution" class="anchor" style="margin-top: 0px;"></a>
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<ul dir="auto" style="text-align: initial; list-style-type: disc; margin: 0px 0px 1rem; padding: 0;">
<li style="margin-top: 0px; line-height: 1.6em; margin-left: 25px; padding-left: 3px;">( ) Formatting</li>
<li style="line-height: 1.6em; margin-left: 25px; padding-left: 3px;">(x) Test creation.</li>
<li style="line-height: 1.6em; margin-left: 25px; padding-left: 3px;">(x) Code comments.</li>
<li style="line-height: 1.6em; margin-left: 25px; padding-left: 3px;">(x) The entire contribution was generated using AI</li>
<li style="line-height: 1.6em; margin-left: 25px; padding-left: 3px;">( ) AI code completion such as Copilot in VSCode.</li>
</ul>
<p dir="auto" style="color: #3a383f; margin: 0px 0px 1rem;" align="initial">The code was written under heavy guidance done by me and of course I reviewed it myself.</p>
<h3 id="user-content-access" dir="auto" style="margin-top: 1.5rem; margin-bottom: 1rem; font-weight: 600; font-size: 1.125rem; letter-spacing: inherit; line-height: 1.25; color: #18171d;" align="initial">Access<a href="#access" aria-label="Link to heading 'Access'" data-heading-content="Access" class="anchor" style="margin-top: 0px;"></a>
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<p dir="auto" style="color: #3a383f; margin: 0px;" align="initial">I have legitimate access to the tool, and it claims no copyright in its output.</p>
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