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<base href="https://bugs.dpdk.org/">
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<body><table border="1" cellspacing="0" cellpadding="8" class="bz_new_table">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_UNCONFIRMED "
title="UNCONFIRMED - rte_cpu_get_flag_enabled() segmentation fault"
href="https://bugs.dpdk.org/show_bug.cgi?id=1501">1501</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>rte_cpu_get_flag_enabled() segmentation fault
</td>
</tr>
<tr>
<th>Product</th>
<td>DPDK
</td>
</tr>
<tr>
<th>Version</th>
<td>21.11
</td>
</tr>
<tr>
<th>Hardware</th>
<td>All
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</td>
</tr>
<tr>
<th>Status</th>
<td>UNCONFIRMED
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>Normal
</td>
</tr>
<tr>
<th>Component</th>
<td>core
</td>
</tr>
<tr>
<th>Assignee</th>
<td>dev@dpdk.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>seyhmus.kartal@karel.com.tr
</td>
</tr>
<tr>
<th>Target Milestone</th>
<td>---
</td>
</tr></table>
<p>
<div class="bz_comment_block">
<pre class="bz_comment_text">I create a rte_fib struct for routing purposes and I free it and recreate it
periodically to update the routes. rte_fib_create() uses
rte_cpu_get_flag_enabled() to check if my cpu has AVX512F or not and selects
lookup function according to it. My cpu does not have AVX512F so
rte_cpu_get_flag_enabled() returns 0 as expected and rte_fib_create() selects
scalar lookup function. However, after a point rte_cpu_get_flag_enabled()
causes a segmentation fault with SIGILL although it runs without any problem
until that moment.
</pre>
</div>
</p>
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