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From: Mingjin Ye <mingjinx.ye@intel.com>
To: dev@dpdk.org
Cc: yidingx.zhou@intel.com, Mingjin Ye <mingjinx.ye@intel.com>,
Qiming Yang <qiming.yang@intel.com>, Wenjun Wu <wenjun1.wu@intel.com>
Subject: [PATCH] doc: add PMD known issue
Date: Thu, 20 Apr 2023 06:43:36 +0000
Message-Id: <20230420064336.141247-1-mingjinx.ye@intel.com>
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Add a known issue: ASLR feature causes core dump.
Signed-off-by: Mingjin Ye <mingjinx.ye@intel.com>
---
doc/guides/nics/ixgbe.rst | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/doc/guides/nics/ixgbe.rst b/doc/guides/nics/ixgbe.rst
index b1d77ab7ab..459d0d8380 100644
--- a/doc/guides/nics/ixgbe.rst
+++ b/doc/guides/nics/ixgbe.rst
@@ -461,3 +461,18 @@ show bypass config
Show the bypass configuration for a bypass enabled NIC using the lowest port on the NIC::
testpmd> show bypass config (port_id)
+
+ASLR feature causes core dump
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Core dump may occur when we start secondary processes on the vf port.
+Mainstream Linux distributions have the ASLR feature enabled by default,
+and the text segment of the process memory space is randomized.
+The secondary process calls the function address shared by the primary
+process, resulting in a core dump.
+
+ .. Note::
+
+ Support for ASLR features varies by distribution. Redhat and
+ Centos series distributions work fine. Ubuntu distributions
+ will core dump, other Linux distributions are unknown.
--
2.25.1