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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">I am not 100% sure if this might be the cause, but please try disabling Linux ASLR.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"><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"> wangpcmic@163.com <wangpcmic@163.com>
<br>
<b>Sent:</b> Sunday, August 27, 2023 9:23 PM<br>
<b>To:</b> 15720603159 <15720603159@163.com><br>
<b>Cc:</b> users <users@dpdk.org><br>
<b>Subject:</b> Re: vfio module crash know when i used dpdk secondary process send pkts<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal" style="margin-bottom:12.0pt"><span lang="ZH-CN">作业写完没</span>.
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<p class="MsoNormal" style="word-break:break-all"><span style="font-size:10.5pt;font-family:"Microsoft YaHei",sans-serif;color:#9B9EA1"><img width="38" height="38" style="width:.3958in;height:.3958in" id="_x0000_i1025" src="https://mail-online.nosdn.127.net/qiyelogo/defaultAvatar.png"></span><span style="font-size:10.5pt;font-family:"Microsoft YaHei",sans-serif;color:#9B9EA1"><o:p></o:p></span></p>
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<p class="MsoNormal" style="word-break:break-all"><b><span style="font-family:"Microsoft YaHei",sans-serif;color:#31353B">wangpcmic<o:p></o:p></span></b></p>
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<p class="MsoNormal" style="word-break:break-all"><span lang="ZH-CN" style="font-size:10.5pt;font-family:"Microsoft YaHei",sans-serif;color:#9B9EA1">邮箱：</span><span style="font-size:10.5pt;font-family:"Microsoft YaHei",sans-serif;color:#9B9EA1"><a href="mailto:wangpcmic@163.com">wangpcmic@163.com</a><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;color:#89898C">---- Replied Message ----<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;color:#89898C">From<o:p></o:p></span></p>
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<p class="MsoNormal" style="word-break:break-all"><span style="font-size:10.0pt;color:#2C2C2E"><a href="mailto:15720603159@163.com"><span style="color:#1C83EB;text-decoration:none">jinag<15720603159@163.com></span></a><o:p></o:p></span></p>
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<p class="MsoNormal" style="word-break:break-all"><span style="font-size:10.0pt;color:#2C2C2E">08/23/2023 19:20<o:p></o:p></span></p>
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<p class="MsoNormal" style="word-break:break-all"><span style="font-size:10.0pt;color:#2C2C2E"><a href="mailto:users@dpdk.org"><span style="color:#1C83EB;text-decoration:none">users@dpdk.org</span></a><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;color:#89898C">Cc<o:p></o:p></span></p>
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<p class="MsoNormal" style="word-break:break-all"><span style="font-size:10.0pt;color:#2C2C2E">vfio module crash when i used dpdk secondary process send pkts<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Arial",sans-serif;color:black">when I use dpdk to call rte_eth_tx_burst function for sending data from the secondary process, vfio will crash:<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Arial",sans-serif;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Arial",sans-serif;color:black">PID: 60699 TASK: ffff8f0152235df00 CPU: 14 COMMAND: "testlstack02"<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Arial",sans-serif;color:black"> #0 [ffffa7d8cecc39a8] machine_kexec at ffffffff9045d67b<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Arial",sans-serif;color:black"> #1 [ffffa7d8ceec3a00] __crash_kexec at ffffffff90562e92<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Arial",sans-serif;color:black"> #2 [ffffa7d8ceec3ac0] panic at ffffffff904b9b79<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Arial",sans-serif;color:black"> #3 [ffffa7d8ceec3b48] oops_end at ffffffff904231fc<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Arial",sans-serif;color:black"> #4 [ffffa7d8ceec3b70] remap_pfn_range at ffffffff90664772<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Arial",sans-serif;color:black"> #5 [ffffa7d8ceec3c58] remap_pfn_range at ffffffff90664772<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Arial",sans-serif;color:black"> #6 [ffffa7d8ceec3da0] vfio_pci_mmap_fault at ffffffffc-bda821 [vfio_pci] <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Arial",sans-serif;color:black"> #7 [ffffa7d8ceec3dc0] __do_fault at ffffffff90662ee9<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Arial",sans-serif;color:black"> #8 [ffffa7d8ceec3df0] do fault at ffffffff90663b2c<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Arial",sans-serif;color:black"> #9 [ffffa7d8ceec3e90] __handle_mm_fault at ffffffff90663c9c<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Arial",sans-serif;color:black">#10 [ffffa7d8ceec3ec0] handle_mm_fault at ffffffff9047103b<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Arial",sans-serif;color:black">#11 [ffffa7d8ceec3ee0] __do_page_fault at ffffffff904712e1<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Arial",sans-serif;color:black">#12 [ffffa7d8ceec3f20] do_page_fault at ffffffff9047122e<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Arial",sans-serif;color:black">#13 [ffffa7d8ceec3f50] page_fault at ffffffff90e012de<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Arial",sans-serif;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Arial",sans-serif;color:black">The crash occurs when the secondary queue of the secondary process send pkts. I have tested that the primary process and the first queue of the secondary process
do not crash. I use i40e X710 nic.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Arial",sans-serif;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Arial",sans-serif;color:black">Has anyone ever encountered simlilar issue? please provide some ideas for fixing the issue.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Arial",sans-serif;color:black">Thanks!<o:p></o:p></span></p>
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