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Tue, 21 Jun 2022 10:20:01 +0100 Envelope-to: ke1x.zhang@intel.com, stable@dpdk.org, xiaoyun.li@intel.com, aman.deep.singh@intel.com, yuying.zhang@intel.com, dev@dpdk.org Received: from [10.71.119.54] (port=51741) by smtp.xilinx.com with esmtp (Exim 4.90) (envelope-from ) id 1o3a3F-0002t0-0x; Tue, 21 Jun 2022 10:20:01 +0100 Message-ID: <6a8160b1-1b52-095e-f293-88290f489972@xilinx.com> Date: Tue, 21 Jun 2022 10:20:00 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Thunderbird/91.10.0 Subject: Re: [PATCH v2] app/testpmd: fix quit testpmd with vfs and pf Content-Language: en-US To: Ke Zhang CC: , , , , References: <20220322071833.199619-1-ke1x.zhang@intel.com> <20220621090325.184668-1-ke1x.zhang@intel.com> From: Ferruh Yigit In-Reply-To: <20220621090325.184668-1-ke1x.zhang@intel.com> Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 8bit X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 25b8fe7e-4920-4a4a-467c-08da536738b4 X-MS-TrafficTypeDiagnostic: DM6PR02MB4252:EE_ X-Microsoft-Antispam-PRVS: X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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SFS:(13230016)(4636009)(136003)(396003)(346002)(376002)(39860400002)(36840700001)(46966006)(40470700004)(31696002)(40460700003)(82740400003)(44832011)(2906002)(53546011)(7636003)(5660300002)(36756003)(31686004)(356005)(9786002)(36860700001)(8936002)(26005)(2616005)(70586007)(82310400005)(41300700001)(83380400001)(4326008)(70206006)(186003)(40480700001)(316002)(336012)(47076005)(426003)(54906003)(8676002)(478600001)(6916009)(50156003)(43740500002); DIR:OUT; SFP:1101; X-OriginatorOrg: xilinx.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 21 Jun 2022 09:20:02.2234 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 25b8fe7e-4920-4a4a-467c-08da536738b4 X-MS-Exchange-CrossTenant-Id: 657af505-d5df-48d0-8300-c31994686c5c X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=657af505-d5df-48d0-8300-c31994686c5c; Ip=[149.199.80.198]; Helo=[xir-pvapexch01.xlnx.xilinx.com] X-MS-Exchange-CrossTenant-AuthSource: DM3NAM02FT049.eop-nam02.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR02MB4252 X-BeenThere: stable@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: patches for DPDK stable branches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: stable-bounces@dpdk.org On 6/21/2022 10:03 AM, Ke Zhang wrote: > When testpmd startups with pf and vfs,this error occurs when quitting, > results in pf is released before vfs ,so the vf would access an > freed heap memory. > > The solution is two steps: > 1. Fetch the valid port value from RTE_ETH_FOREACH_DEV. > 2. free the port in reverse order. > > Fixes: 08fd782b8454 ("app/testpmd: fix quit to stop all ports before close") > Cc: stable@dpdk.org > > Signed-off-by: Ke Zhang > --- > app/test-pmd/testpmd.c | 27 ++++++++++++++++++++++----- > 1 file changed, 22 insertions(+), 5 deletions(-) > > diff --git a/app/test-pmd/testpmd.c b/app/test-pmd/testpmd.c > index 04c39adc21..67b4941942 100644 > --- a/app/test-pmd/testpmd.c > +++ b/app/test-pmd/testpmd.c > @@ -3491,17 +3491,34 @@ pmd_test_exit(void) > } > } > #endif > + portid_t ethports[RTE_MAX_ETHPORTS]; > + int count; > + int index; Hi Ke, These variables only used in the 'if' block, to reduce the scope of them can you please move them at the very top of the block: if (ports != NULL) { portid_t ethports[RTE_MAX_ETHPORTS]; int count = 0; int index; no_link_check = 1; ... > if (ports != NULL) { > no_link_check = 1; > + count = 0; > + > + /* Fetch the valid port id from port list*/ > RTE_ETH_FOREACH_DEV(pt_id) { > - printf("\nStopping port %d...\n", pt_id); > + ethports[count] = pt_id; > + count++; > + } > + > + /* > + * Free the port from Reverse order, as general, > + * PF port < VF port， VF should be free before PF > + * be free. > + */ > + for (index = count - 1 ; index >= 0 ; index--) { > + printf("\nStopping port %d...\n", ethports[index]); > fflush(stdout); > - stop_port(pt_id); > + stop_port(ethports[index]); > } > - RTE_ETH_FOREACH_DEV(pt_id) { > - printf("\nShutting down port %d...\n", pt_id); > + > + for (index = count - 1 ; index >= 0 ; index--) { > + printf("\nShutting down port %d...\n", ethports[index]); > fflush(stdout); > - close_port(pt_id); > + close_port(ethports[index]); > } > } >