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Initcall Debug

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Revision as of 10:10, 19 November 2008 by WillNewton (Talk | contribs)

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Introduction

Passing the initcall_debug option on the kernel command line will cause timing information to be printed to the console for each initcall. initcalls are used to initialize statically linked kernel drivers and subsystems and contribute a significant amount of time to the Linux boot process. The output looks like this:

calling ipc_init+0x0/0x28 @ 1
msgmni has been set to 42
initcall ipc_init+0x0/0x28 returned 0 after 1872 usecs