Limitations of the Linux Fault Injection Framework to Test Direct Memory Access Address Errors
Taipei（2008）
摘要
Device drivers can be traced as the source of most operating system (OS) bugs. The Linux kernel includes a Fault Injection Framework which developers can use to implement simple fault injection tools to test device drivers. This paper presents our results in applying the Fault Injection Framework to inject DMA address errors. Our experiments show that while the injected errors reach the device driver, the asynchronous nature of DMA makes the framework an ill-suited approach if the fault injection campaign expects the errors to reach the hardware I/O devices, as when trying to test IOMMU implementations.
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关键词
linux fault injection framework,test direct memory,address errors,dma address error,iommu implementation,device driver,asynchronous nature,simple fault injection tool,fault injection campaign,o device,ill-suited approach,fault injection framework,linux kernel,programming,software fault tolerance,operating systems,reliability,hardware,kernel,direct memory access,dma,linux,operating system
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