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DIR:OUT; SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 23 May 2021 08:13:03.8334 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 3cc64184-c290-48d6-2658-08d91dc296bb X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a; Ip=[216.228.112.34]; Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: CO1NAM11FT040.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CY4PR12MB1397 Subject: [dpdk-stable] [PATCH 19.11.9] eal/windows: fix default thread priority 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 Sender: "stable" [ upstream commit 16afcbfa30e9c2831264fb349457a4228fa687c8 ] The hard-coded thread priority for Windows threads in EAL is REALTIME_PRIORITY_CLASS/THREAD_PRIORITY_TIME_CRITICAL. This results in issues with DPDK threads causing OS thread starvation and eventually a bugcheck. The fix reduce the thread priority to NORMAL_PRIORITY_CLASS/THREAD_PRIORITY_NORMAL. Bugzilla ID: 600 Reported-by: Odi Assli Signed-off-by: Tal Shnaiderman Acked-by: Dmitry Kozlyuk --- lib/librte_eal/windows/eal/eal_thread.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/lib/librte_eal/windows/eal/eal_thread.c b/lib/librte_eal/windows/eal/eal_thread.c index 0591d4c7fb..af1e7fe2ea 100644 --- a/lib/librte_eal/windows/eal/eal_thread.c +++ b/lib/librte_eal/windows/eal/eal_thread.c @@ -147,8 +147,8 @@ eal_thread_create(pthread_t *thread) if (!th) return -1; - SetPriorityClass(GetCurrentProcess(), REALTIME_PRIORITY_CLASS); - SetThreadPriority(th, THREAD_PRIORITY_TIME_CRITICAL); + SetPriorityClass(GetCurrentProcess(), NORMAL_PRIORITY_CLASS); + SetThreadPriority(th, THREAD_PRIORITY_NORMAL); return 0; } -- 2.16.1.windows.4