[gpsd-dev] Linux kernel bug in 3:12, low_latency on serial ports is broken

[Hal Murray]

Just a heads-up in case you hit this, or want to avoid it.

The symptom is BUG: scheduling while atomic
  https://bugzilla.redhat.com/show_bug.cgi?id=1065087

The discussion at
  https://lkml.org/lkml/2014/2/18/77
confirms that it's the low-latency path that is buggy.

My setup works fine under low load, but hits the BUG when I do something like 
compile the ntp package.

3.11 works fine.  (for me)  There was major work in the serial area for 3.12

I'll send an update when/if it gets fixed.





-- 
These are my opinions.  I hate spam.