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<p class="MsoNormal"><span style="font-size:11.0pt">Hi <a id="OWAAMD02608C91C7B4F079875C7A1998FC39F" href="mailto:pnarsimharaj@gmail.com">
<span style="font-family:"Aptos",sans-serif;text-decoration:none">@narsimharaj pentam</span></a>,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Is it multiple threads or multiple processes as the secondary as Maayan mentioned? BTW, is it a bond configuration?<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"> Maayan Kashani <mkashani@nvidia.com>
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<b>Sent:</b> Wednesday, December 4, 2024 3:36 PM<br>
<b>To:</b> narsimharaj pentam <pnarsimharaj@gmail.com>; users@dpdk.org<br>
<b>Subject:</b> RE: mlx5_stats_get reports crash: invalid ibv_context<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:7.5pt;font-family:"Verdana",sans-serif;color:black">External email: Use caution opening links or attachments</span></b><span style="font-size:7.5pt;font-family:"Verdana",sans-serif;color:black">
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<p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US">Hi,
</span><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">Narsimha,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US">Sorry for the late response,
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US">in mlx5 stats we do mention that<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US">- For secondary process:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US"> - "out_of_buffer" statistics is not supported.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US">Do you have some testpmd reproduction?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;mso-ligatures:standardcontextual">Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;mso-ligatures:standardcontextual">Maayan Kashani<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"> narsimharaj pentam <<a href="mailto:pnarsimharaj@gmail.com">pnarsimharaj@gmail.com</a>>
<br>
<b>Sent:</b> Wednesday, 28 February 2024 6:32<br>
<b>To:</b> <a href="mailto:users@dpdk.org">users@dpdk.org</a><br>
<b>Subject:</b> mlx5_stats_get reports crash: invalid ibv_context<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:7.5pt;font-family:"Verdana",sans-serif;color:black">External email: Use caution opening links or attachments</span></b><span style="font-size:7.5pt;font-family:"Verdana",sans-serif;color:black">
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">Hi Team,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">A crash is observed on MLX5 device while fetching stats "mlx5_stats_get" , looks like
<b>ibv_context</b> is getting corrupted ( ibctx=0x1ede838800001e)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">We do access the stats from multiple threads simultaneously , does this create any issue ?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">Platform details:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">Platform : VM<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">Hypervisor : Linux KVM<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">Cloud : None<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">Application : 64-bit<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">Datapath : DPDK<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">DPDK : dpdk-22.11.1<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">Library : libmlx5-rdmav34.so<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">Program terminated with signal 11, Segmentation fault.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">#0 0x00007ffff0114c83 in mlx5_get_dv_ops (ibctx=0x1ede838800001e) at ../providers/mlx5/mlx5.c:2734<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">2734 ../providers/mlx5/mlx5.c: No such file or directory.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">(gdb) bt<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">#0 0x00007ffff0114c83 in mlx5_get_dv_ops (ibctx=0x1ede838800001e) at ../providers/mlx5/mlx5.c:2734<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">#1 0x00007ffff012f378 in mlx5dv_devx_obj_query (obj=0x27cabd0 <SipMedia::SipMedia(SipMedia const&)+1120>, in=0x7fffa6badb20, inlen=32, out=0x7fffa6badb40, outlen=1024)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> at ../providers/mlx5/verbs.c:5808
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">#2 0x0000000004fc0eeb in mlx5_devx_cmd_queue_counter_query (dcs=0x31131be2b2c0, clear=clear@entry=0, out_of_buffers=out_of_buffers@entry=0x7fffa6bae010)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> at ../usbc_gnu_src/drivers/common/mlx5/mlx5_devx_cmds.c:2845<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">#3 0x00000000052ec96d in mlx5_os_read_dev_stat (priv=priv@entry=0x31131bf66400, ctr_name=<optimized out>, ctr_name@entry=0x5b6fcc2 "out_of_buffer", stat=stat@entry=0x7fffa6bae010)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> at ../usbc_gnu_src/drivers/net/mlx5/linux/mlx5_os.c:2684<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">#4 0x00000000053719e4 in mlx5_stats_get (dev=<optimized out>, stats=0x7fffa6bae690) at ../usbc_gnu_src/drivers/net/mlx5/mlx5_stats.c:155<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">#5 0x0000000005076873 in rte_eth_stats_get () at ../usbc_gnu_src/lib/ethdev/rte_ethdev.c:2733<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">BR<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">Narsimha<o:p></o:p></span></p>
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