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<a href="https://gitlab.rtems.org/zhugengyu2023">geng zhu</a> created an issue: <a href="https://gitlab.rtems.org/rtems/pkg/rtems-libbsd/-/issues/4">#4</a>
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<a href="#summary" aria-hidden="true" class="anchor" id="user-content-summary" style="margin-top: 0; float: left; margin-left: -20px; text-decoration: none; outline: none;"></a>Summary</h2>
<p dir="auto" style="color: #333238; margin: 0 0 16px;" align="initial">Hello all, I am trying to porting LibBSD to some armv8a platform with SMP support, but I find that only EDF scheduler workable for mine when libBSD enabled, when talking about UP, all kinds of scheduler works, So I'm wondering if anyone do so kind of test like me</p>
<p dir="auto" style="color: #333238; margin: 0 0 16px;" align="initial"><a class="no-attachment-icon gfm" href="https://gitlab.rtems.org/-/project/13/uploads/df83f09bd2d1e4fd44b782d249926094/image.png" target="_blank" rel="noopener noreferrer" data-canonical-src="/uploads/df83f09bd2d1e4fd44b782d249926094/image.png" data-link="true" style="margin-top: 0;"><img src="https://gitlab.rtems.org/-/project/13/uploads/df83f09bd2d1e4fd44b782d249926094/image.png" alt="image" width="921" height="316" data-canonical-src="/uploads/df83f09bd2d1e4fd44b782d249926094/image.png" class="gfm" style="max-width: 100%; height: auto; object-fit: contain; object-position: top; margin: 0 0 8px;"></a></p>
<p dir="auto" style="color: #333238; margin: 0 0 16px;" align="initial">PS: I care about the scheduler config because EDF is not priority 255 based, I want to keep the same kind of default scheduler algorithm as UP</p>
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<li style="margin-top: 0; line-height: 1.6em; margin-left: 25px; padding-left: 3px;">my scheduler config is</li>
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<pre class="code highlight js-syntax-highlight language-plaintext" v-pre="true" style='display: block; font-size: 14px; color: #333238; line-height: 1.6em; overflow-x: auto; border-radius: .25rem; position: relative; font-family: var(--default-mono-font, "GitLab Mono"),"JetBrains Mono","Menlo","DejaVu Sans Mono","Liberation Mono","Consolas","Ubuntu Mono","Courier New","andale mono","lucida console",monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; margin: 0 0 16px; padding: 12px; border: 1px solid #dcdcde;'><code style='font-size: inherit; color: inherit; word-wrap: normal; word-break: keep-all; background-color: inherit; border-radius: .25rem; white-space: pre; margin-top: 0; font-family: var(--default-mono-font, "GitLab Mono"),"JetBrains Mono","Menlo","DejaVu Sans Mono","Liberation Mono","Consolas","Ubuntu Mono","Courier New","andale mono","lucida console",monospace; vertical-align: bottom; overflow-wrap: normal; padding: unset;'><span id="LC1" class="line" lang="plaintext" style="margin-top: 0;"></span>
<span id="LC2" class="line" lang="plaintext">#define CONFIGURE_MICROSECONDS_PER_TICK 1000</span>
<span id="LC3" class="line" lang="plaintext"></span>
<span id="LC4" class="line" lang="plaintext">#define CONFIGURE_MAXIMUM_PROCESSORS 8</span>
<span id="LC5" class="line" lang="plaintext"></span>
<span id="LC6" class="line" lang="plaintext">#if defined(RTEMS_SMP) && (CONFIGURE_MAXIMUM_PROCESSORS > 1)</span>
<span id="LC7" class="line" lang="plaintext"></span>
<span id="LC8" class="line" lang="plaintext">#define CONFIGURE_MAXIMUM_PRIORITY 255</span>
<span id="LC9" class="line" lang="plaintext">#define CONFIGURE_SCHEDULER_PRIORITY_SMP</span>
<span id="LC10" class="line" lang="plaintext"></span>
<span id="LC11" class="line" lang="plaintext">#include <rtems/scheduler.h></span>
<span id="LC12" class="line" lang="plaintext"></span>
<span id="LC13" class="line" lang="plaintext">RTEMS_SCHEDULER_PRIORITY_SMP(io, CONFIGURE_MAXIMUM_PRIORITY + 1);</span>
<span id="LC14" class="line" lang="plaintext">RTEMS_SCHEDULER_PRIORITY_SMP(work, CONFIGURE_MAXIMUM_PRIORITY + 1);</span>
<span id="LC15" class="line" lang="plaintext"></span>
<span id="LC16" class="line" lang="plaintext">#define CONFIGURE_SCHEDULER_TABLE_ENTRIES \</span>
<span id="LC17" class="line" lang="plaintext"> RTEMS_SCHEDULER_TABLE_PRIORITY_SMP( \</span>
<span id="LC18" class="line" lang="plaintext"> io, \</span>
<span id="LC19" class="line" lang="plaintext"> rtems_build_name('I', 'O', ' ', ' ') \</span>
<span id="LC20" class="line" lang="plaintext"> ), \</span>
<span id="LC21" class="line" lang="plaintext"> RTEMS_SCHEDULER_TABLE_PRIORITY_SMP( \</span>
<span id="LC22" class="line" lang="plaintext"> work, \</span>
<span id="LC23" class="line" lang="plaintext"> rtems_build_name('W', 'O', 'R', 'K') \</span>
<span id="LC24" class="line" lang="plaintext"> )</span>
<span id="LC25" class="line" lang="plaintext"></span>
<span id="LC26" class="line" lang="plaintext">#define CONFIGURE_SCHEDULER_ASSIGNMENTS \</span>
<span id="LC27" class="line" lang="plaintext"> RTEMS_SCHEDULER_ASSIGN(0, RTEMS_SCHEDULER_ASSIGN_PROCESSOR_MANDATORY), \</span>
<span id="LC28" class="line" lang="plaintext"> RTEMS_SCHEDULER_ASSIGN(1, RTEMS_SCHEDULER_ASSIGN_PROCESSOR_MANDATORY), \</span>
<span id="LC29" class="line" lang="plaintext"> RTEMS_SCHEDULER_ASSIGN(1, RTEMS_SCHEDULER_ASSIGN_PROCESSOR_MANDATORY), \</span>
<span id="LC30" class="line" lang="plaintext"> RTEMS_SCHEDULER_ASSIGN(1, RTEMS_SCHEDULER_ASSIGN_PROCESSOR_MANDATORY), \</span>
<span id="LC31" class="line" lang="plaintext"> RTEMS_SCHEDULER_ASSIGN(1, RTEMS_SCHEDULER_ASSIGN_PROCESSOR_OPTIONAL), \</span>
<span id="LC32" class="line" lang="plaintext"> RTEMS_SCHEDULER_ASSIGN(1, RTEMS_SCHEDULER_ASSIGN_PROCESSOR_OPTIONAL), \</span>
<span id="LC33" class="line" lang="plaintext"> RTEMS_SCHEDULER_ASSIGN(1, RTEMS_SCHEDULER_ASSIGN_PROCESSOR_OPTIONAL), \</span>
<span id="LC34" class="line" lang="plaintext"> RTEMS_SCHEDULER_ASSIGN(1, RTEMS_SCHEDULER_ASSIGN_PROCESSOR_OPTIONAL)</span>
<span id="LC35" class="line" lang="plaintext"></span>
<span id="LC36" class="line" lang="plaintext">#else /* RTEMS_SMP */</span>
<span id="LC37" class="line" lang="plaintext"></span>
<span id="LC38" class="line" lang="plaintext">#define CONFIGURE_SCHEDULER_PRIORITY</span>
<span id="LC39" class="line" lang="plaintext"></span>
<span id="LC40" class="line" lang="plaintext">#endif</span></code></pre>
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<a href="#steps-to-reproduce" aria-hidden="true" class="anchor" id="user-content-steps-to-reproduce" style="margin-top: 0; float: left; margin-left: -20px; text-decoration: none; outline: none;"></a>Steps to reproduce</h2>
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