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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 - Intel uncore power library fails because of too many frequencies"
href="https://bugs.dpdk.org/show_bug.cgi?id=1499">1499</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Intel uncore power library fails because of too many frequencies
</td>
</tr>
<tr>
<th>Product</th>
<td>DPDK
</td>
</tr>
<tr>
<th>Version</th>
<td>24.07
</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>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">Running 24.07-rc2 on Intel core box fails the power uncore test because:
RTE>>power_intel_uncore_autotest
POWER: Too many available uncore frequencies: 33
POWER: Cannot get available uncore frequencies of pkg 00 die 00
Cannot initialise uncore power management for pkg 0 die 0, this may occur if
environment is not configured correctly(APCI cpufreq) or operating in another
valid Power management environment
The CPU is: 11th Gen Intel(R) Core(TM) i7-1165G7 @ 2.80GHz
initial_max_freq_khz:3600000
initial_min_freq_khz:400000
max_freq_khz:3600000
min_freq_khz:400000
Which leads to this expression:
num_uncore_freqs = (ui->init_max_freq - ui->init_min_freq) / BUS_FREQ +
1;
if (num_uncore_freqs >= MAX_UNCORE_FREQS) {
POWER_LOG(ERR, "Too many available uncore frequencies: %d",
num_uncore_freqs);
I.e:
num_uncore_freqs = (3600000 - 400000) / 100000 + 1
= 33
Looks like an off-by-one error, was this ever tested?
</pre>
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