Bypass aware instruction scheduling for register file power reduction
Proceedings of the 2006 ACM SIGPLAN/SIGBED conference on Language, compilers, and tool support for embedded systems
Techniques for Multicore Thermal Management: Classification and New Exploration
Proceedings of the 33rd annual international symposium on Computer Architecture
A study of thread migration in temperature-constrained multicores
ACM Transactions on Architecture and Code Optimization (TACO)
Memory performance attacks: denial of memory service in multi-core systems
SS'07 Proceedings of 16th USENIX Security Symposium on USENIX Security Symposium
Addressing thermal nonuniformity in SMT workloads
ACM Transactions on Architecture and Code Optimization (TACO)
Static analysis to mitigate soft errors in register files
Proceedings of the Conference on Design, Automation and Test in Europe
Dimetrodon: processor-level preventive thermal management via idle cycle injection
Proceedings of the 48th Design Automation Conference
Preventing denial-of-service attacks in shared CMP caches
SAMOS'06 Proceedings of the 6th international conference on Embedded Computer Systems: architectures, Modeling, and Simulation
Recent thermal management techniques for microprocessors
ACM Computing Surveys (CSUR)
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In the past, there have been several denial-of-service (DOS) attacks which exhaust some shared resource (e.g., physical memory, process table, file descriptors, TCP connections) of the targeted machine. Though these attacks have been addressed, it is important to continue to identify and address new attacks because DOS is one of most prominent methods used to cause significant financial loss. A recent paper shows how to prevent attacks that exploit the sharing of pipeline resources (e.g., shared trace cache) in SMT to degrade the performance of normal threads. In this paper, we show that power density can be exploited in SMT to launch a novel DOS attack, called heat stroke. Heat stroke repeatedly accesses a shared resource to create a hot spot at the resource. Current solutions to hot spots inevitably involve slowing down the pipeline to let the hot spot cool down. Consequently, heat stroke slows down the entire SMT pipeline and severely degrades normal threads. We present a solution to heat stroke by identifying the thread that causes the hot spot and selectively slowing down the malicious thread while minimally affecting normal threads.