<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <meta name="Generator" content="Microsoft Word 15 (filtered medium)"> <style></style> </head> <body lang="ZH-CN" link="blue" vlink="purple"> <div class="WordSection1"> <p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif">Hi <o:p></o:p></span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif">I've had the same error. It may be caused by this parameter:<o:p></o:p></span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif"><a href="https://github.com/DPDK/dpdk/blob/v22.11/config/rte_config.h#L33C9-L33C33">https://github.com/DPDK/dpdk/blob/v22.11/config/rte_config.h#L33C9-L33C33</a><o:p></o:p></span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif">If you use 2MB hugepages, the max memory size is 2MB * 8192 = 16GB. This error will occur when you allocate more than 16GB of memory per numa.<o:p></o:p></span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif"><o:p> </o:p></span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif">But should not have this error if you use 512 MB of memory, can you show RTE_MAX_MEMSEG_PER_LIST in your dpdk? <o:p></o:p></span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif">Check whether the other sizes hugepage is used, Theoretically, this error indicates that the rte_eal_init init fails and the program should exit.<o:p></o:p></span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif"><o:p> </o:p></span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif"><o:p> </o:p></span></p> <div> <div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm"> <p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:等线">发件人<span lang="EN-US">:</span></span></b><span lang="EN-US" style="font-size:11.0pt;font-family:等线"> Don Trotter <djtrotter@yahoo.com> <br> </span><b><span style="font-size:11.0pt;font-family:等线">发送时间<span lang="EN-US">:</span></span></b><span lang="EN-US" style="font-size:11.0pt;font-family:等线"> 2023</span><span style="font-size:11.0pt;font-family:等线">年<span lang="EN-US">9</span>月<span lang="EN-US">8</span>日<span lang="EN-US"> 5:33<br> </span><b>收件人<span lang="EN-US">:</span></b><span lang="EN-US"> Stephen Hemminger <stephen@networkplumber.org><br> </span><b>抄送<span lang="EN-US">:</span></b><span lang="EN-US"> users@dpdk.org<br> </span><b>主题<span lang="EN-US">:</span></b><span lang="EN-US"> Re: EAL: eal_memalloc_alloc_seg_bulk(): couldn't find suitable memseg_list<o:p></o:p></span></span></p> </div> </div> <p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p> <div> <div> <div> <div> <p class="MsoNormal"><span lang="EN-US" style="font-family:"Helvetica",sans-serif;color:#26282A">On Thursday, September 7, 2023 at 03:21:12 PM CDT, Stephen Hemminger <</span><span lang="EN-US"><a href="mailto:stephen@networkplumber.org"><span style="font-family:"Helvetica",sans-serif">stephen@networkplumber.org</span></a></span><span lang="EN-US" style="font-family:"Helvetica",sans-serif;color:#26282A">> wrote:<o:p></o:p></span></p> </div> <div> <p class="MsoNormal"><span lang="EN-US" style="font-family:"Helvetica",sans-serif;color:#26282A"><o:p> </o:p></span></p> </div> <div> <p class="MsoNormal"><span lang="EN-US" style="font-family:"Helvetica",sans-serif;color:#26282A"><o:p> </o:p></span></p> </div> <div> <div> <p class="MsoNormal"><span lang="EN-US" style="font-family:"Helvetica",sans-serif;color:#26282A">On Thu, 7 Sep 2023 19:58:35 +0000 (UTC)<o:p></o:p></span></p> <div id="ydpbe11d152yqtfd76773"> <p class="MsoNormal"><span lang="EN-US" style="font-family:"Helvetica",sans-serif;color:#26282A"><br> Don Trotter <</span><span lang="EN-US"><a href="mailto:djtrotter@yahoo.com" target="_blank"><span style="font-family:"Helvetica",sans-serif;color:#196AD4">djtrotter@yahoo.com</span></a></span><span lang="EN-US" style="font-family:"Helvetica",sans-serif;color:#26282A">> wrote:<br> <br> > To clarify, the log message when my application called rte_mempool_create() to create the "node_pool", and the call succeeded.<br> > Thanks,Don Trotter<br> > On Thursday, September 7, 2023 at 01:54:08 PM CDT, Don Trotter <</span><span lang="EN-US"><a href="mailto:djtrotter@yahoo.com" target="_blank"><span style="font-family:"Helvetica",sans-serif;color:#196AD4">djtrotter@yahoo.com</span></a></span><span lang="EN-US" style="font-family:"Helvetica",sans-serif;color:#26282A">> wrote: <br> > <br> > Hi,<br> > I have recently started using DPDK. I am working on a project on OcteonTX2 with DPDK 11.23.01. I am seeing this message from EAL during EAL init, but everything is working.<br> > EAL: eal_memalloc_alloc_seg_bulk(): couldn't find suitable memseg_list<br> > The system has 96GB of memory. These 2 pools get created and everything works fine.<br> > mempool <mbuf_pool>@0x13fed3e00 flags=10 socket_id=0 pool=0x1140300000 iova=0x13fed3e00 nb_mem_chunks=1 size=65535 populated_size=65535 header_size=128 elt_size=10200 trailer_size=40 total_obj_size=10368 private_data_size=128 ops_index=0 ops_name: <cn9k_mempool_ops> avg bytes/object=10368.558602<br> > mempool <node_pool>@0x1575d8180 flags=10 socket_id=-1 pool=0x19ffffd00 iova=0x1575d8180 nb_mem_chunks=2 size=134217727 populated_size=134217727 header_size=128 elt_size=256 trailer_size=0 total_obj_size=384 private_data_size=0 ops_index=3 ops_name: <ring_mp_mc> avg bytes/object=384.000094<br> > You read that right. I’ve got 128*1024*1024 256 byte buffers created for data.<br> > I also see there is still heap left, although pretty low after.<br> > Heap id:0 Heap name:socket_0 Heap_size:55834574848, Free_size:2403644544, Alloc_size:53430930304, Greatest_free_size:536870016, Alloc_count:293, Free_count:5,<br> > Linux free stats.<br> > tmp# free -h -w total used free shared buffers cache availableMem: 95Gi 88Gi 6.5Gi 444Mi 0B 470Mi 599MiSwap: 0B 0B 0B<br> > Is there anything wrong with that EAL log? Is there a lurking problem?<br> > Thanks,Don Trotter<o:p></o:p></span></p> </div> <p class="MsoNormal"><span lang="EN-US" style="font-family:"Helvetica",sans-serif;color:#26282A"><br> ><br> > <br> <br> Did you setup hugepages?<br> How many and what size?<br> Is this a NUMA system?<br> <br> Also 11.23.01 seems like a weird release number.<br> The DPDK release numbering scheme is year followed by month. I.e. 22.11 was released in November of 2022<o:p></o:p></span></p> </div> </div> </div> <p class="MsoNormal"><span lang="EN-US" style="font-family:"Helvetica",sans-serif"><o:p> </o:p></span></p> </div> <div> <p class="MsoNormal"><span lang="EN-US" style="font-family:"Helvetica",sans-serif"><o:p> </o:p></span></p> </div> <div> <div> <div> <p class="MsoNormal"><span lang="EN-US" style="font-family:"Helvetica",sans-serif"># cat /sys/kernel/mm/hugepages/hugepages-524288kB/nr_hugepages<o:p></o:p></span></p> </div> <div> <p class="MsoNormal"><span lang="EN-US" style="font-family:"Helvetica",sans-serif">176<o:p></o:p></span></p> </div> </div> <p class="MsoNormal"><span lang="EN-US" style="font-family:"Helvetica",sans-serif"><o:p> </o:p></span></p> </div> <div> <p class="MsoNormal"><span lang="EN-US" style="font-family:"Helvetica",sans-serif">Yes it is a NUMA system.<o:p></o:p></span></p> </div> <div> <p class="MsoNormal"><span lang="EN-US" style="font-family:"Helvetica",sans-serif"><o:p> </o:p></span></p> </div> <div> <p class="MsoNormal"><span lang="EN-US" style="font-family:"Helvetica",sans-serif">You are correct sir. The SDK is SDK11.23.01 (2023-01) and DPDK is 22.11.<o:p></o:p></span></p> </div> </div> <div id="ydpbe11d152yahoo_quoted_4658645739"> <div> <div> <p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p> </o:p></span></p> </div> <div> <p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A">Thanks, Don Trotter<o:p></o:p></span></p> </div> <div> <div> <div id="ydpbe11d152yqtfd36134"> <p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A"><o:p> </o:p></span></p> </div> </div> </div> </div> </div> </div> </body> </html>