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Solaris Modular Debugger Guide
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Chapter 7

Kernel Execution Control

This chapter describes the MDB features for execution control of the live operating system kernel available when running kmdb. kmdb is a version of MDB specifically designed for kernel execution control and live kernel debugging. Using kmdb, the kernel can be controlled and observed in much the same way that a user process can be controlled and observed using mdb. The kernel execution control functionality includes instruction-level control of kernel threads executing on each CPU, enabling developers to single-step the kernel and inspect data structures in real time.

Both mdb and kmdb share the same user interface. All of the execution control functionality described in Chapter 6, Execution Control is available in kmdb, and is identical to the set of commands used to control user processes. The commands used to inspect kernel state, described in Chapter 3, MDB Language Syntax and Chapter 5, Built-In Commands, are also available when using kmdb. Finally, the commands specific to the Solaris kernel implementation, described in Chapter 8, Kernel Debugging Modules, are available unless otherwise noted. This chapter describes the remaining features that are specific to kmdb.

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  Published under the terms fo the Public Documentation License Version 1.01. Design by Interspire