Bug#628444: iwlagn - "MAC is in deep sleep", cannot restore wifi operation

[Jonathan Nieder <jrnieder@gmail.com>]

Hi Juha,

Juha Jäykkä wrote:

> What is the status of the fix from Intel? I have the same problem since 
> upgrading to 3.x series and it is VERY annoying - only way I can fix it is 
> rebooting the kernel, so it really seems a kernel bug. Hibernating the system 
> and doing a full power-off (unplug AC, remove battery, wait 60 seconds – this 
> should do it) the laptop does NOT fix it, so I concur: the kernel must retain 
> some bogus information somewhere since the hw has definitely lost its status 
> info.

Please provide:

 - steps to reproduce, assuming I had the same hardware
 - expected result, actual result, and how the difference indicates a
   bug (should be simple enough in this case)
 - how reproducible it is (100% of the time?  50%?)
 - which kernel versions you have tested, and results with each
 - full "dmesg" output from booting and reproducing the bug, as an
   attachment
 - any other weird observations or workarounds

I believe the best way to move forward would be to take this report
upstream to a public mailing list.  So the purpose of these questions
is to collect data on what's known so far as a starting point.

Thanks,
Jonathan