From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id A908D42993; Thu, 20 Apr 2023 08:49:38 +0200 (CEST) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 947F240A4B; Thu, 20 Apr 2023 08:49:38 +0200 (CEST) Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) by mails.dpdk.org (Postfix) with ESMTP id 9694F40687 for ; Thu, 20 Apr 2023 08:49:36 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1681973376; x=1713509376; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=IQU4txM3Y6BR46RcB/OJwpmo0RwgVr4L7YsMOCB0m7I=; b=jjm2+CQFqVlniqjTtWID9kOLpVpq/QXgOOzoGkTzWaVLlB7Pz/h+b6F9 k5KOV4unMiRF3i/Ti8Hn+AYvdg6EsHngSNkhjBGhjYVaE+IlvaSalLsPu dExQVBGrUyNgZobBUIQYG+u9gPn4ORIywMzC8sI/AzqdUBWza0b1G+Ywi OVxFfkgu87i16fBJ0z/N0O2jwlsjEmJNneijavhZ5Sy+eFA3m/C7RvJEo C6aTxISyDsRzajMKn1XKrmzYDuTKJqW9cM3nyTGriLdb/KOKQstJFtZ0A JBNP6jGaX2l76FE6cMdlbyyNCUbS+2vUqrA7zTe5tg8Otkj1P40mbmcQD Q==; X-IronPort-AV: E=McAfee;i="6600,9927,10685"; a="431926244" X-IronPort-AV: E=Sophos;i="5.99,211,1677571200"; d="scan'208";a="431926244" Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Apr 2023 23:49:35 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10685"; a="756385213" X-IronPort-AV: E=Sophos;i="5.99,211,1677571200"; d="scan'208";a="756385213" Received: from unknown (HELO localhost.localdomain) ([10.239.252.253]) by fmsmga008-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Apr 2023 23:49:33 -0700 From: Mingjin Ye To: dev@dpdk.org Cc: yidingx.zhou@intel.com, Mingjin Ye , Qiming Yang , Wenjun Wu 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> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Add a known issue: ASLR feature causes core dump. Signed-off-by: Mingjin Ye --- 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