公开(公告)号：US20210357272A1

公开(公告)日：2021-11-18

申请号：US17038994

申请日：2020-09-30

Applicant: Samsung Electronics Co., Ltd.

Inventor： Raju Udava SIDDAPPA ,  Chandan KUMAR ,  Sudharshan Rao B ,  Tushar VRIND ,  Venkata Raju INDUKURI

IPC: G06F9/52 ,  G06F9/48

Abstract: A method for preventing a task-signal deadlock arising due to contention for a mutex in a real-time operating system (RTOS) includes detecting, by a processing unit, a signal notification sent to a task for execution of a signal handler; identifying, by the processing unit, a mutex to be acquired by the signal handler, when the signal notification is detected; determining whether the identified mutex has been acquired by the task; and utilizing, by the processing unit, an alternative stack for execution of the signal handler, in response to determining that the mutex has been acquired by the task, for preventing a task-signal deadlock during the execution.

公开(公告)号：US20240045738A1

公开(公告)日：2024-02-08

申请号：US18489559

申请日：2023-10-18

Applicant: Samsung Electronics Co., Ltd.

Inventor： Raju Udava SIDDAPPA ,  Chandan KUMAR ,  Sudharshan Rao B ,  Tushar VRIND ,  Venkata Raju INDUKURI

IPC: G06F9/52 ,  G06F9/48

CPC classification number: G06F9/524 ,  G06F9/4831

Abstract: A method for preventing a task-signal deadlock arising due to contention for a mutex in a real-time operating system (RTOS) includes detecting, by a processing unit, a signal notification sent to a task for execution of a signal handler; identifying, by the processing unit, a mutex to be acquired by the signal handler, when the signal notification is detected; determining whether the identified mutex has been acquired by the task; and utilizing, by the processing unit, an alternative stack for execution of the signal handler, in response to determining that the mutex has been acquired by the task, for preventing a task-signal deadlock during the execution.