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charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: DM6PR12MB3753.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: c474668f-7a07-462f-06d4-08d9ae84dba7 X-MS-Exchange-CrossTenant-originalarrivaltime: 23 Nov 2021 13:26:29.2209 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: AruaxA0kCc/ayVV0qurboqF/gpas7+9VbIvWza2sglW2WC7v8NCTgQXilSUfi3sqAxSUVJJcUXDdAtOfWhXODw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR12MB3945 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 > -----Original Message----- > From: Dariusz Sosnowski > Sent: Monday, November 22, 2021 19:10 > To: Matan Azrad ; Slava Ovsiienko > ; Dmitry Kozlyuk > Cc: Raslan Darawsheh ; dev@dpdk.org; > stable@dpdk.org > Subject: [PATCH v3] net/mlx5: fix refcount on detached indirect action >=20 > This patch fixes segfault which was triggered when port, with indirect ac= tions > created, was closed. Segfault was occurring only when > RTE_LIBRTE_MLX5_DEBUG was defined. It was caused by redundant > decrement of RX queues refcount: >=20 > - refcount was decremented when port was stopped and indirect actions wer= e > detached from RX queues (port stop), > - refcount was decremented when indirect actions objects were destroyed > (port close or destroying of indirect action). >=20 > This patch fixes behavior. Dereferencing RX queues is done if and only if > indirect action is explicitly destroyed by the user or detached on port s= top. > Dereferencing RX queues on action destroy operation depends on an > argument to the wrapper of indirect action destroy operation, introduced = in > this patch. >=20 > Fixes: ec4e11d41d12 ("net/mlx5: preserve indirect actions on restart") > Cc: dkozlyuk@nvidia.com > Cc: stable@dpdk.org >=20 > Signed-off-by: Dariusz Sosnowski Acked-by: Viacheslav Ovsiienko