Debugging by printing

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Revision as of 19:39, 14 June 2011 by Peter Huewe (Talk | contribs)

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Note: This article is currently only a draft and is a part of a series of articles I'm going to publish the next few months - if you want to contribute to it, please feel free to. However it would be nice if you could coordinate your efforts with me



What this article will be about - ideas

  • printk format
  • Debug/log levels - dmesg -n /proc/sys/kernel/printk
  • printk_ratelimited
  • dynamic debug, pr_debug and dev_dbg
  • pr_warn and family - see printk.h for details

Examples - maybe use example module.


References Linux Kernel Development 3rd Edition Essential Device Drivers


Links: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=blob;f=Documentation/printk-formats.txt;hb=HEAD http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=blob;f=Documentation/dynamic-debug-howto.txt;hb=HEAD