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b=IuA3bZqP2pmVVaWO7JPHuYwQVZEPppdlgVgMXEYCZ3qqJyNLn0MuevNQ5m7OGYED9AHOj7vVXHd9MZPc512wG+JLbA48IZZfshukaPlql+ck264gaKUP9D2o+x7JTaSceg6Wf98BE3t5rZ5RrGDGwjxkHzzCuCBeE5XFz07PHOo= Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=amd.com; Received: from CH2PR12MB4294.namprd12.prod.outlook.com (2603:10b6:610:a9::11) by CH2PR12MB4309.namprd12.prod.outlook.com (2603:10b6:610:a4::17) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7270.17; Thu, 8 Feb 2024 01:12:50 +0000 Received: from CH2PR12MB4294.namprd12.prod.outlook.com ([fe80::815a:45e6:cf5e:479f]) by CH2PR12MB4294.namprd12.prod.outlook.com ([fe80::815a:45e6:cf5e:479f%4]) with mapi id 15.20.7292.009; Thu, 8 Feb 2024 01:12:50 +0000 Message-ID: <7067c6e3-23d4-4e00-935c-862a80f4ecbc@amd.com> Date: Thu, 8 Feb 2024 01:12:45 +0000 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2] app/testpmd: fix crash in multi-process packet forwarding Content-Language: en-US To: Dengdui Huang , dev@dpdk.org Cc: aman.deep.singh@intel.com, yuying.zhang@intel.com, liuyonglong@huawei.com References: <20240126024110.2671570-1-huangdengdui@huawei.com> <20240130013249.987959-1-huangdengdui@huawei.com> From: Ferruh Yigit Autocrypt: addr=ferruh.yigit@amd.com; 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When nbcore is greater than 1, multiple cores may > use the same queue to forward packet, like: > dpdk-testpmd -a BDF --proc-type=auto -- -i --rxq=4 --txq=4 > --nb-cores=2 --num-procs=2 --proc-id=0 > testpmd> start > mac packet forwarding - ports=1 - cores=2 - streams=4 - NUMA support > enabled, MP allocation mode: native > Logical Core 2 (socket 0) forwards packets on 2 streams: > RX P=0/Q=0 (socket 0) -> TX P=0/Q=0 (socket 0) peer=02:00:00:00:00:00 > RX P=0/Q=1 (socket 0) -> TX P=0/Q=1 (socket 0) peer=02:00:00:00:00:00 > Logical Core 3 (socket 0) forwards packets on 2 streams: > RX P=0/Q=0 (socket 0) -> TX P=0/Q=0 (socket 0) peer=02:00:00:00:00:00 > RX P=0/Q=1 (socket 0) -> TX P=0/Q=1 (socket 0) peer=02:00:00:00:00:00 > > After this commit, the result will be: > dpdk-testpmd -a BDF --proc-type=auto -- -i --rxq=4 --txq=4 > --nb-cores=2 --num-procs=2 --proc-id=0 > testpmd> start > io packet forwarding - ports=1 - cores=2 - streams=2 - NUMA support > enabled, MP allocation mode: native > Logical Core 2 (socket 0) forwards packets on 1 streams: > RX P=0/Q=0 (socket 2) -> TX P=0/Q=0 (socket 2) peer=02:00:00:00:00:00 > Logical Core 3 (socket 0) forwards packets on 1 streams: > RX P=0/Q=1 (socket 2) -> TX P=0/Q=1 (socket 2) peer=02:00:00:00:00:00 > > Fixes: a550baf24af9 ("app/testpmd: support multi-process") > Cc: stable@dpdk.org > > Signed-off-by: Dengdui Huang > Acked-by: Chengwen Feng > Thanks for the fix. Acked-by: Ferruh Yigit Applied to dpdk-next-net/main, thanks.