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<body><table border="1" cellspacing="0" cellpadding="8" class="bz_new_table">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_UNCONFIRMED "
title="UNCONFIRMED - mlx5 secondary testpmd process crash when calling rte_eth_stats_get"
href="https://bugs.dpdk.org/show_bug.cgi?id=1366">1366</a>
</td>
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<tr>
<th>Summary</th>
<td>mlx5 secondary testpmd process crash when calling rte_eth_stats_get
</td>
</tr>
<tr>
<th>Product</th>
<td>DPDK
</td>
</tr>
<tr>
<th>Version</th>
<td>22.11
</td>
</tr>
<tr>
<th>Hardware</th>
<td>x86
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux
</td>
</tr>
<tr>
<th>Status</th>
<td>UNCONFIRMED
</td>
</tr>
<tr>
<th>Severity</th>
<td>minor
</td>
</tr>
<tr>
<th>Priority</th>
<td>Normal
</td>
</tr>
<tr>
<th>Component</th>
<td>eventdev
</td>
</tr>
<tr>
<th>Assignee</th>
<td>dev@dpdk.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>aidan@peralex.com
</td>
</tr>
<tr>
<th>Target Milestone</th>
<td>---
</td>
</tr></table>
<p>
<div class="bz_comment_block">
<pre class="bz_comment_text">Created <span class=""><a href="attachment.cgi?id=271" name="attach_271" title="Secondary lldb process output">attachment 271</a> <a href="attachment.cgi?id=271&action=edit" title="Secondary lldb process output">[details]</a></span>
Secondary lldb process output
Linux:
AlmaLinux 9.3
Kernel:
5.14.0-362.8.1.el9_3.x86_64
Software version:
rdma-core-48.0-1.el9.x86_64
dpdk-v22.11(tested on git branch v23.11-rc4 as well)
Hardware:
Mellanox Technologies MT27800 Family [ConnectX-5]
Running two testpmd processes at the same time causes the secondary process to
crash with a segmentation fault from the libmlx5.so library. Two ports on a
Mellanox MT27800 card are configured to be used by both testpmd apps.
The two separate instances are launched:
1. dpdk-testpmd --proc-type=primary
2. dpdk-testpmd --proc-type=secondary
I am not sure if this is a rdma-core issue which contains the libmlx5.so
library where segmentation fault is thrown from. The primary dpdk process runs
without any issues and there are no segfaults. The rte_eth_stats_get function
only throws an error on the secondary process, not on the primary process.
Attached is the lldb output when running a debug build secondary process with
lldb.
Running dmesg also shows that there is a segfault:
dpdk-testpmd[67695]: segfault at b077f90 ip 00007f1ae42069e4 sp
00007ffcd49903b8 error 4 in libmlx5.so.1.24.48.0[7f1ae41b5000+5a000] likely on
CPU 0 (core 0, socket 0)
Code: 77 90 0f b6 d2 48 8d 05 7a a3 00 00 44 0f be 24 10 e9 7c ff ff ff e8 fb
f3 fa ff 66 66 2e 0f 1f 84 00 00 00 00 00 f3 0f 1e fa <48>
8b 07 49 89 d2 4c 8d 0d 4f 88 01 00 48 8b 10 48 8b 92 98 02 00
</pre>
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