Debugging by printing

Revision as of 13:16, 14 June 2011 by Peter Huewe (talk | contribs) (added printk wiki link)
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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.


  • Linux Kernel Development 3rd Edition
  • Essential Device Drivers