Deadlock prevention utilizing distributed resource reservations
US12360825B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 1, 2023 |
| Grant date | Jul 15, 2025 |
| Priority date | — |
| Expiry date | Jan 24, 2044 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L67/1012
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In multi-threaded or multi-processor computing systems, a deadlock may occur when two or more processes or threads are unable to proceed because they are each waiting for a resource that the other holds. As a result, progress is halted because conflicting entities are stuck in a circular dependency, and none can release the resources they hold to let the others continue. Systems and methods are provided wherein a resource reservation is carried out in two steps. The first step causes query nodes to add an identifier to a queue and, upon a request and the identifier being in a first position, a non-sharable resource is reserved. As a result, non-sharable resources are reserved in order and when needed, thereby preventing deadlocks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.