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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: DM4PR12MB5312.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: fce27eca-765c-4fff-d832-08d9aed1f517 X-MS-Exchange-CrossTenant-originalarrivaltime: 23 Nov 2021 22:38:23.2616 (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: 2OR+GJUUEVbWXRiL91xjSDE128/Qe2XHu6RoHzXVDD5xR+mu+bU5i7GYppiGrpdSnyUo/G0LlJys4mSmMt9eBg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM8PR12MB5478 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 Hi, > -----Original Message----- > From: Bing Zhao > Sent: Tuesday, November 23, 2021 2:49 PM > To: Slava Ovsiienko ; Matan Azrad > > Cc: dev@dpdk.org; Raslan Darawsheh ; Dmitry Kozlyuk > > Subject: [PATCH] common/mlx5: fix shared MR ranges allocation >=20 > Memory regions (MRs) were allocated in one chunk of memory with a mempool > registration object. However, MRs can be reused among different mempool > registrations. >=20 > When the registration that allocated the MRs originally was destroyed, th= e > dangling pointers to the MRs could be left in other registrations sharing= these > MRs. >=20 > Splitting the memory allocation of registration structure and MRs in this= commit > solves this pointer reference issue. >=20 > Fixes: 690b2a88c2f7 ("common/mlx5: add mempool registration facilities") >=20 > Signed-off-by: Bing Zhao > Acked-by: Viacheslav Ovsiienko > Reviewed-by: Dmitry Kozlyuk Patch applied to next-net-mlx, Kindest regards, Raslan Darawsheh