If you are working on answering a frequently asked question, please add it to ["FAQsInProgress"].

== How do I ...? ==

  1. ["/KernelCompilation"] How do I compile a kernel?
  1. ["/KernelCrossCompilation"] How do I cross compile a kernel?
  1. ["/HowToApplyAPatch"] How do I apply a patch?
  1. ["KernelHackingTools"] Are there any good IDEs? How do I handle all this code?
  1. ["/CompileVendorDriver"] How do I compile a 3rd party device driver ?
  1. ["/LinuxKernelModuleCompile"] How can I compile a Linux Kernel Module ?
  1. ["/LinuxKernelDebug101"] Whats the easiest way to debug ?
  1. ["CareerAdvice"] How do I get a job as kernel hacker?

== Kernelnewbies questions ==

  1. ["/VariousKernelTrees"] What are the various kernel trees for ?
  1. ["/WhereDoIBegin"] Where do I begin?
  1. ["/People on KernelNewBies"] Who can I find on #kernelnewbies?
  1. ["/DoINeedToKnowAssembler"] Do I need to know assembler to hack the kernel?
  1. ["DoesNotWork"] I built my own kernel, but it does not work.  What's the problem?

== Kernel hacking ==

  1. ["/VariousKernelTrees"] What are the various kernel trees for ?
  1. ["/System.map"] What is the System.map file?
  1. ["/MajorMinor"] What major/minor does XXX have ?
  1. ["/CodingStyle"] What coding style should I use?
  1. ["/LikelyUnlikely"] What means the macros `likely()` and `unlikely()` ?
  1. ["/Preemption"] What does preemption mean ? Is it available under Linux ?
  1. ["/LibraryFunctionsInKernel"] Can I use library functions in the kernel ?
  1. ["/SyscallTrace"] How do I intercept system calls ?
  1. ["/LinkedLists"] How does the kernel implements linked lists? 
  1. ["/WhyWritingFilesFromKernelIsBad"] Why reading/writing files from the kernel is bad, and how to do otherwise ?

== Linux kernel gotchas ==

  1. ["/get_current"] How does `get_current()` work?
  1. ["/current"] How does the `current` macro helps you access your process-related record? 
  1. ["/ExternAndStaticInlineVariable"] What's the difference between extern and static inline?
  1. ["/DoWhile0"] Why do a lot of `#defines` in the kernel use `do { ... } while (0)`?
  1. ["/LikelyUnlikely"] What do the macros `likely()` and `unlikely()` mean?
  1. ["/ContainerOf"] What is ''container_of'' ? How does it work ?
  1. ["/InitExitMacros"] What are the _``_init and _``_exit macros ?
  1. ["/WhereIs__bad_udelay"] Now, where is _``_bad_udelay defined?
  1. ["/asmlinkage"] What is `asmlinkage` ?
  1. ["/down"] What is that jmp 1b doing out there?
  1. ["/TestWpBit"] test_wp_bit magic, or how exception fixups work.
  1. ["/BUG"] How does BUG() work?
  1. ["/StackTrace"] Why is there a function on my stack trace that does not get called?

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["CategoryFAQ"]