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From: bugzilla@dpdk.org
To: dev@dpdk.org
Subject: [Bug 1273] eth_memif_rx segfault when burst size is greater than 32
Date: Mon, 14 Aug 2023 15:26:03 +0000
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X-Bugzilla-Who: sunnylandh@gmail.com
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--16920267630.d49D4A0C.4047475
Date: Mon, 14 Aug 2023 17:26:03 +0200
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https://bugs.dpdk.org/show_bug.cgi?id=3D1273

            Bug ID: 1273
           Summary: eth_memif_rx segfault when burst size is greater than
                    32
           Product: DPDK
           Version: 23.03
          Hardware: All
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: ethdev
          Assignee: dev@dpdk.org
          Reporter: sunnylandh@gmail.com
  Target Milestone: ---

When rte_eth_rx_burst() is called on an memif device with a burst size grea=
ter
than 32, there's a segfault in eth_memif_rx() function.

  Thread 1 "x" received signal SIGSEGV, Segmentation fault.
  0x00007ffff7a116d1 in eth_memif_rx (queue=3D0x1b73051c0, bufs=3D0x7ffffff=
fd320,
nb_pkts=3D<optimized out>) at ../drivers/net/memif/rte_eth_memif.c:360
  360                             mbuf =3D mbuf_head;
  (gdb) bt
  #0  0x00007ffff7a116d1 in eth_memif_rx (queue=3D0x1b73051c0,
bufs=3D0x7fffffffd320, nb_pkts=3D<optimized out>) at
../drivers/net/memif/rte_eth_memif.c:360
  #1  0x000055555555554e in rte_eth_rx_burst (nb_pkts=3D<optimized out>,
rx_pkts=3D0x7fffffffd220, queue_id=3D0, port_id=3D0) at
/usr/local/include/rte_ethdev.h:5918
  #2  rxloop (queue=3D0, mp=3D<optimized out>, burstSize=3D<optimized out>,=
 port=3D0)
at x.c:51
  #3  main (argc=3D<optimized out>, argv=3D<optimized out>) at x.c:103

--=20
You are receiving this mail because:
You are the assignee for the bug.=

--16920267630.d49D4A0C.4047475
Date: Mon, 14 Aug 2023 17:26:03 +0200
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<html>
    <head>
      <base href=3D"https://bugs.dpdk.org/">
    </head>
    <body><table border=3D"1" cellspacing=3D"0" cellpadding=3D"8" class=3D"=
bz_new_table">
        <tr>
          <th>Bug ID</th>
          <td><a class=3D"bz_bug_link=20
          bz_status_UNCONFIRMED "
   title=3D"UNCONFIRMED - eth_memif_rx segfault when burst size is greater =
than 32"
   href=3D"https://bugs.dpdk.org/show_bug.cgi?id=3D1273">1273</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>eth_memif_rx segfault when burst size is greater than 32
          </td>
        </tr>

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

        <tr>
          <th>Version</th>
          <td>23.03
          </td>
        </tr>

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

        <tr>
          <th>OS</th>
          <td>Linux
          </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&#64;dpdk.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>sunnylandh&#64;gmail.com
          </td>
        </tr>

        <tr>
          <th>Target Milestone</th>
          <td>---
          </td>
        </tr></table>
      <p>
        <div class=3D"bz_comment_block">
          <pre class=3D"bz_comment_text">When rte_eth_rx_burst() is called =
on an memif device with a burst size greater
than 32, there's a segfault in eth_memif_rx() function.

  Thread 1 &quot;x&quot; received signal SIGSEGV, Segmentation fault.
  0x00007ffff7a116d1 in eth_memif_rx (queue=3D0x1b73051c0, bufs=3D0x7ffffff=
fd320,
nb_pkts=3D&lt;optimized out&gt;) at ../drivers/net/memif/rte_eth_memif.c:360
  360                             mbuf =3D mbuf_head;
  (gdb) bt
  #0  0x00007ffff7a116d1 in eth_memif_rx (queue=3D0x1b73051c0,
bufs=3D0x7fffffffd320, nb_pkts=3D&lt;optimized out&gt;) at
../drivers/net/memif/rte_eth_memif.c:360
  #1  0x000055555555554e in rte_eth_rx_burst (nb_pkts=3D&lt;optimized out&g=
t;,
rx_pkts=3D0x7fffffffd220, queue_id=3D0, port_id=3D0) at
/usr/local/include/rte_ethdev.h:5918
  #2  rxloop (queue=3D0, mp=3D&lt;optimized out&gt;, burstSize=3D&lt;optimi=
zed out&gt;, port=3D0)
at x.c:51
  #3  main (argc=3D&lt;optimized out&gt;, argv=3D&lt;optimized out&gt;) at =
x.c:103
          </pre>
        </div>
      </p>


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