<html>
    <head>
      <base href="https://bugs.dpdk.org/">
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    <body><table border="1" cellspacing="0" cellpadding="8" class="bz_new_table">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_UNCONFIRMED "
   title="UNCONFIRMED - E830 Tx packet pacing support causing seg fault on E810"
   href="https://bugs.dpdk.org/show_bug.cgi?id=1732">1732</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>E830 Tx packet pacing support causing seg fault on E810
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>DPDK
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>25.03
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>All
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>All
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>UNCONFIRMED
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>normal
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>Normal
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>ethdev
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>dev@dpdk.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>mmahajan@iol.unh.edu
          </td>
        </tr>

        <tr>
          <th>Target Milestone</th>
          <td>---
          </td>
        </tr></table>
      <p>
        <div class="bz_comment_block">
          <pre class="bz_comment_text">Hello,

A new patch was committed to dpdk-next-net-intel a few days ago, and since then
our Intel E810 100G forwarding performance test has not been running because
testpmd is segfaulting on startup.

The patch that introduced the issue is: "net/intel: add Tx packet pacing
support for E830" (commit ID: fd8ef1fc471f7eef6b103ece65f00de655f13ed4). It was
authored by Soumyadeep Hore and merged into dpdk-next-net-intel on 2025-06-23.


EAL:
build/app/dpdk-testpmd \
  -l 4-5 -n 4 \
  --file-prefix=dpdk_179921_20250626115614 \
  -a 0000:4b:00.0 -a 0000:4b:00.1 \
  -- -i \
  --portmask=0x3 \
  --rxq=1 \
  --txq=1 \
  --port-topology=loop \
  --txd=512 \
  --rxd=512 \
  --nb-cores=1
EAL: Detected CPU lcores: 128
EAL: Detected NUMA nodes: 2
EAL: Detected static linkage of DPDK
EAL: Multi-process socket /var/run/dpdk/dpdk_179921_20250626115614/mp_socket
EAL: Selected IOVA mode 'VA'
EAL: VFIO support initialized
EAL: Using IOMMU type 1 (Type 1)
ICE_INIT: ice_load_pkg_type(): Active package is: 1.3.39.1, ICE OS Default
Package (double VLAN mode)
ICE_INIT: ice_load_pkg_type(): Active package is: 1.3.39.1, ICE OS Default
Package (double VLAN mode)
Interactive-mode selected
testpmd: create a new mbuf pool <mb_pool_0>: n=155456, size=2176, socket=0
testpmd: preferred mempool ops selected: ring_mp_mc
Configuring Port 0 (socket 0)
Segmentation fault (core dumped)


NIC info:
Intel Corporation Ethernet Controller E810-C for QSFP

ethtool:
driver: ice
version: 5.15.0-142-generic
firmware-version: 4.80 0x80020543 1.3805.0
bus-info: 0000:4b:00.0

Ice version: 1.3.39.1

OS: Ubuntu VERSION="22.04.3 LTS (Jammy Jellyfish)"
Arch: x86
CPU: Intel(R) Xeon(R) Platinum 8360Y CPU @ 2.40GHz
          </pre>
        </div>
      </p>


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