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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 - rte_exit will hang if called from worker or service thread"
href="https://bugs.dpdk.org/show_bug.cgi?id=1290">1290</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>rte_exit will hang if called from worker or service thread
</td>
</tr>
<tr>
<th>Product</th>
<td>DPDK
</td>
</tr>
<tr>
<th>Version</th>
<td>23.07
</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>stephen@networkplumber.org
</td>
</tr>
<tr>
<th>Target Milestone</th>
<td>---
</td>
</tr></table>
<p>
<div class="bz_comment_block">
<pre class="bz_comment_text">Calling rte_exit in a thread other than main thread won't work because
the cleanup code is calling rte_eal_cleanup, and inside that it ends
up waiting for all workers. Since the thread you are calling from
is a worker, it ends up waiting for itself.
rte_exit()
rte_eal_cleanup()
rte_service_finalize()
rte_eal_mp_wait_lcore()
void
rte_eal_mp_wait_lcore(void)
{
unsigned lcore_id;
RTE_LCORE_FOREACH_WORKER(lcore_id) {
rte_eal_wait_lcore(lcore_id);
}
}
Either service handling needs to be smarter, the rte_exit() function
check if it is called from main lcore, and/or documentation needs update.
Not a simple fix because in order to safely do the cleanup logic
all threads have to gone to a quiescent state.
</pre>
</div>
</p>
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