Difference between revisions of "Debugging by printing"

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(added some ideas/material)
m (formatting)
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* pr_warn and family - see printk.h for details
 
* pr_warn and family - see printk.h for details
  
Examples - maybe use example module.
+
* Examples - maybe use example module.
  
  
 
References
 
References
Linux Kernel Development 3rd Edition
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* Linux Kernel Development 3rd Edition
Essential Device Drivers
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* Essential Device Drivers
  
  
 
Links:
 
Links:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=blob;f=Documentation/printk-formats.txt;hb=HEAD
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* 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
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* http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=blob;f=Documentation/dynamic-debug-howto.txt;hb=HEAD

Revision as of 19:40, 14 June 2011


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: