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<p class="MsoNormal"><span style="font-size:11.0pt">Hi Mr. Gore,<br>
<br>
Let me check it on our side, I will update you soon.<br>
<br>
Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Gagan<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">
</span><span lang="ZH-CN" style="font-size:11.0pt;font-family:"MS Gothic"">高佛庥</span><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> <gao.foxiu@e-quantum.com.cn>
<br>
<b>Sent:</b> Thursday, March 12, 2026 12:03 PM<br>
<b>To:</b> Gagandeep Singh <G.Singh@nxp.com>; Hemant Agrawal <hemant.agrawal@nxp.com><br>
<b>Cc:</b> dev <dev@dpdk.org><br>
<b>Subject:</b> URGENT: PFDR still exhausted after applying FQRNI patch - need immediate guidance<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<span style="font-size:9.0pt;font-family:wf_segoe-ui_normal;color:#212121">Some people who received this message don't often get email from
<a href="mailto:gao.foxiu@e-quantum.com.cn">gao.foxiu@e-quantum.com.cn</a>. <a href="https://aka.ms/LearnAboutSenderIdentification">
Learn why this is important</a> <o:p></o:p></span></p>
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<p class="ds-markdown-paragraph" style="mso-margin-top-alt:12.0pt;margin-right:0in;margin-bottom:12.0pt;margin-left:0in;background:white;font-variant-ligatures: normal;font-variant-caps: normal;text-align:start;text-decoration-thickness: initial;text-decoration-style: initial;text-decoration-color: initial;word-spacing:0px">
<span style="font-family:-apple-system;color:#0F1115">Dear Gagandeep, Hemant,<o:p></o:p></span></p>
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<span style="font-family:-apple-system;color:#0F1115">We are facing a critical production outage on NXP LS1043A platforms running OVS-DPDK</span><span lang="ZH-CN" style="font-family:"Microsoft YaHei",sans-serif;color:#0F1115">（</span><span style="font-family:-apple-system;color:#0F1115">ver:22.11.7</span><span lang="ZH-CN" style="font-family:"Microsoft YaHei",sans-serif;color:#0F1115">）</span><span style="font-family:-apple-system;color:#0F1115">.<o:p></o:p></span></p>
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<span style="font-family:-apple-system;color:#0F1115">Status:<o:p></o:p></span></p>
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<span style="font-family:"Segoe UI Emoji",sans-serif">✅</span><span style="font-family:-apple-system"> Your PFDR leak patch (</span><code><span style="font-size:10.5pt;font-family:Consolas;background:#EBEEF2">bus/dpaa: fix PFDRs leaks due to FQRNIs</span></code><span style="font-family:-apple-system">)
is applied<o:p></o:p></span></li><li class="ds-markdown-paragraph" style="color:#0F1115;margin-top:0in;margin-bottom:0in;mso-list:l0 level1 lfo1;background:white">
<span style="font-family:"Segoe UI Emoji",sans-serif">❌</span><span style="font-family:-apple-system"> After ~90 days, PFDR still exhausts (from 524k to 487k entries)<o:p></o:p></span></li><li class="ds-markdown-paragraph" style="color:#0F1115;margin-top:0in;margin-bottom:0in;mso-list:l0 level1 lfo1;background:white">
<span style="font-family:"Segoe UI Emoji",sans-serif">❌</span><span style="font-family:-apple-system"> Error: </span><code><span style="font-size:10.5pt;font-family:Consolas;background:#EBEEF2">Qman ErrInt: PFDR Enqueues Blocked Interrupt</span></code><span style="font-family:-apple-system"><o:p></o:p></span></li><li class="ds-markdown-paragraph" style="color:#0F1115;margin-top:0in;margin-bottom:0in;mso-list:l0 level1 lfo1;background:white">
<span style="font-family:"Segoe UI Emoji",sans-serif">❌</span><span style="font-family:-apple-system"> Device requires reboot to recover<o:p></o:p></span></li></ul>
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<span style="font-family:-apple-system;color:#0F1115">Your patch note states:<o:p></o:p></span></p>
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<p class="ds-markdown-paragraph" style="margin:0in;background:white"><span style="font-family:-apple-system;color:#0F1115">"Please note that this drain_mr_fqrni() only look for FQRNI type messages to consume. If there are other type of messages like FQRN, FQRL,
FQPN, ERN etc. also coming on MR then those messages need to be handled separately."<o:p></o:p></span></p>
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<span style="font-family:-apple-system;color:#0F1115">We believe this is exactly our situation - other message types are accumulating and consuming PFDRs.<o:p></o:p></span></p>
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<span style="font-family:-apple-system;color:#0F1115">Urgent request:<o:p></o:p></span></p>
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<span style="font-family:-apple-system">Are there known patches to handle FQRN, ERN, etc. messages?<o:p></o:p></span></li><li class="ds-markdown-paragraph" style="color:#0F1115;margin-top:0in;margin-bottom:0in;mso-list:l1 level1 lfo2;background:white">
<span style="font-family:-apple-system">Should we drain MR in additional locations (interrupt handlers, periodic timers)?<o:p></o:p></span></li><li class="ds-markdown-paragraph" style="color:#0F1115;margin-top:0in;margin-bottom:0in;mso-list:l1 level1 lfo2;background:white">
<span style="font-family:-apple-system">Can you provide a complete fix or point us to the right code modifications?<o:p></o:p></span></li></ol>
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<span style="font-family:-apple-system;color:#0F1115">We are willing to test any patch immediately. Our production systems are at risk.<o:p></o:p></span></p>
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<span style="font-family:-apple-system;color:#0F1115">Please advise urgently.<o:p></o:p></span></p>
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<span style="font-family:-apple-system;color:#0F1115">Best regards,<br>
Mr. Gore <o:p></o:p></span></p>
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<span style="font-family:-apple-system;color:#0F1115"><a href="Tel:+86-18038128078">Tel:+86-<span style="font-size:10.5pt;font-family:"Microsoft YaHei",sans-serif">18038128078</span></a><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="ZH-CN" style="font-size:10.5pt;font-family:"Microsoft YaHei",sans-serif;color:black;background:white">高佛庥</span><span style="font-size:10.5pt;font-family:"Microsoft YaHei",sans-serif;color:black"><br>
<span lang="ZH-CN" style="border:none windowtext 1.0pt;padding:0in">南京易科腾信息技术有限公司（</span></span><span style="font-family:"Times New Roman",serif;color:black">Nanjing EQTINFO Information Technology Co., Ltd</span><span lang="ZH-CN" style="font-size:10.5pt;font-family:"Microsoft YaHei",sans-serif;color:black;border:none windowtext 1.0pt;padding:0in">）</span><span style="font-size:10.5pt;font-family:"Microsoft YaHei",sans-serif;color:black;border:none windowtext 1.0pt;padding:0in"><br>
<span lang="ZH-CN">电话：</span>180-3812-8078<br>
<span lang="ZH-CN">邮箱：</span><a href="mailto:gao.foxiu@e-quantum.com.cn">gao.foxiu@e-quantum.com.cn</a><br>
<br>
<br>
</span><span style="font-size:10.5pt;font-family:"Microsoft YaHei",sans-serif;color:black"><o:p></o:p></span></p>
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