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<p class="MsoNormal">DPDK documentation says so for multi-process case. <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<li class="MsoNormal" style="color:black;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;text-align:justify;line-height:15.6pt;mso-list:l0 level1 lfo1;background:white">
<span style="font-size:12.0pt;font-family:"Arial",sans-serif">The multi-process feature requires that the exact same hugepage memory mappings be present in all applications. The Linux security feature - Address-Space Layout Randomization (ASLR) can interfere
with this mapping, so it may be necessary to disable this feature in order to reliably run multi-process applications.<o:p></o:p></span></li></ul>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><b>From:</b> Balakrishnan K <Balakrishnan.K1@tatacommunications.com>
<br>
<b>Sent:</b> Wednesday, July 6, 2022 1:54 AM<br>
<b>To:</b> Pathak, Pravin <pravin.pathak@intel.com>; users@dpdk.org<br>
<b>Subject:</b> RE: how to run dpdk app with valgrind<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="EN-IN">Hi Pravin,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-IN"> Randomization is not turned off.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-IN" style="background:yellow;mso-highlight:yellow">cat /proc/sys/kernel/randomize_va_space<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-IN" style="background:yellow;mso-highlight:yellow">2</span><span lang="EN-IN"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-IN"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-IN">Do I need to turn off the randomization?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-IN"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-IN">Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-IN">Bala <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-IN"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b>From:</b> Pathak, Pravin <<a href="mailto:pravin.pathak@intel.com">pravin.pathak@intel.com</a>>
<br>
<b>Sent:</b> 05 July 2022 18:53<br>
<b>To:</b> Balakrishnan K <<a href="mailto:Balakrishnan.K1@tatacommunications.com">Balakrishnan.K1@tatacommunications.com</a>>;
<a href="mailto:users@dpdk.org">users@dpdk.org</a><br>
<b>Subject:</b> RE: how to run dpdk app with valgrind<o:p></o:p></p>
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<p class="MsoNormal"><span lang="EN-IN"><o:p> </o:p></span></p>
<div style="border:dotted #003333 1.0pt;padding:10.0pt 10.0pt 10.0pt 10.0pt">
<p style="background:#CFD3D6"><b><span style="font-size:7.5pt;color:red">CAUTION</span></b><span style="font-size:7.5pt;color:red">: This email originated from outside of the organization. Do not click links or open attachments unless you recognize the sender
and know the content is safe. <o:p></o:p></span></p>
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<p class="MsoNormal">Is randomization turned off ?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:11.5pt;font-family:-apple-system;color:#232629;background:white">echo 0 > /proc/sys/kernel/randomize_va_space<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.5pt;font-family:-apple-system;color:#232629;background:white"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.5pt;font-family:-apple-system;color:#232629;background:white">Pravin</span><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b>From:</b> Balakrishnan K <<a href="mailto:Balakrishnan.K1@tatacommunications.com">Balakrishnan.K1@tatacommunications.com</a>>
<br>
<b>Sent:</b> Tuesday, July 5, 2022 7:11 AM<br>
<b>To:</b> <a href="mailto:users@dpdk.org">users@dpdk.org</a><br>
<b>Subject:</b> how to run dpdk app with valgrind<o:p></o:p></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Hi All,<o:p></o:p></p>
<p class="MsoNormal"> Is there any documents available to run the dpdk application with valgrind.<o:p></o:p></p>
<p class="MsoNormal">I am trying to run our application with dpdk getting warning and the process is not starting up.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">IPv4 IP : 1.1.1.1<o:p></o:p></p>
<p class="MsoNormal">IPv6 IP : 0::0<o:p></o:p></p>
<p class="MsoNormal">EAL: Detected 80 lcore(s)<o:p></o:p></p>
<p class="MsoNormal">EAL: Detected 2 NUMA nodes<o:p></o:p></p>
<p class="MsoNormal">EAL: Multi-process socket /var/run/dpdk/rte/mp_socket<o:p></o:p></p>
<p class="MsoNormal">EAL: Selected IOVA mode 'PA'<o:p></o:p></p>
<p class="MsoNormal">EAL: Probing VFIO support...<o:p></o:p></p>
<p class="MsoNormal"><span style="background:yellow;mso-highlight:yellow">EAL: WARNING! Base virtual address hint (0xa80001000 != 0x1040000000) not respected!<o:p></o:p></span></p>
<p class="MsoNormal"><span style="background:yellow;mso-highlight:yellow">EAL: This may cause issues with mapping memory into secondary processes</span><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Could you please help on this?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Regards,<o:p></o:p></p>
<p class="MsoNormal">Bala <o:p></o:p></p>
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