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| Content Provider | ACM Digital Library |
|---|---|
| Author | Suh, G. Edward Halberg, Erik Huang, Ruirui |
| Abstract | This paper introduces a new heuristic condition for non-race concurrency bugs, named order-sensitive critical sections, and proposes a run-time bug detection scheme based on the condition. The order-sensitive critical sections are defined as a pair of critical sections that can lead to non-deterministic shared memory state depending on the order in which they execute. In a sense, the order-sensitive critical sections can be seen as extending the intuition in using data races as a potential bug condition to capture non-race bugs. Experiments show that the proposed scheme provides a good coverage for multiple types of non-race bugs, with a small number of false positives. For example, the scheme detected all 9 real-world non-race bugs that were tested as well as over 90% of injected non-race bugs. Additionally, this paper presents an efficient hardware architecture that supports the proposed scheme with minor hardware changes and a small amount of additional state - a 9-KB buffer per core and a 1-bit tag per data cache block. The hardware-based scheme could still detect all 9 real-world bugs that were tested and more than 84% of the injected non-race bugs. Moreover, the hardware supported scheme has a negligible impact on performance, with a 0.23% slowdown on average. |
| Starting Page | 655 |
| Ending Page | 666 |
| Page Count | 12 |
| File Format | |
| ISSN | 01635964 |
| DOI | 10.1145/2508148.2485978 |
| Journal | ACM SIGARCH Computer Architecture News (CARN) |
| Volume Number | 41 |
| Issue Number | 3 |
| Language | English |
| Publisher | Association for Computing Machinery (ACM) |
| Publisher Date | 1981-04-01 |
| Publisher Place | New York |
| Access Restriction | One Nation One Subscription (ONOS) |
| Content Type | Text |
| Resource Type | Article |
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