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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_UNCONFIRMED "
title="UNCONFIRMED - Virtio_user as Exception Path in secondary process report mistakes ( virtio_user_notify_queue(): failed to kick backend: Bad file descriptor)"
href="https://bugs.dpdk.org/show_bug.cgi?id=1467">1467</a>
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<th>Summary</th>
<td>Virtio_user as Exception Path in secondary process report mistakes ( virtio_user_notify_queue(): failed to kick backend: Bad file descriptor)
</td>
</tr>
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<th>Product</th>
<td>DPDK
</td>
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<th>Version</th>
<td>21.11
</td>
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<th>Hardware</th>
<td>All
</td>
</tr>
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<th>OS</th>
<td>All
</td>
</tr>
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<th>Status</th>
<td>UNCONFIRMED
</td>
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<th>Severity</th>
<td>critical
</td>
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<th>Priority</th>
<td>Normal
</td>
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<th>Component</th>
<td>vhost/virtio
</td>
</tr>
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<th>Assignee</th>
<td>dev@dpdk.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>952983126@qq.com
</td>
</tr>
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<th>Target Milestone</th>
<td>---
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</tr></table>
<p>
<div class="bz_comment_block">
<pre class="bz_comment_text">when using Virtio_user as Exception Path ,configure the port in the primary
process , virtio_user do rx and tx in the secondary process. it generates a
mistake in tx such as (virtio_user_notify_queue(): failed to kick backend: Bad
file descriptor).
in my opinion ,when initialize the second process , is it properly to copy the
callfd and kickfd which are initialized by primay process to the secondary
process ? in this situation ,i don't think the secondary process could find
the correct kickfd ,and it make kthread work abnormal.
please see the question ,thank you !!!
</pre>
</div>
</p>
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