Comment # 10 on bug 1202534 from David Boyd

Created attachment 861146 [details]
VirtualBox snapshot of trace output

Jan,

I applied the patched kernel that you posted.  The output flooded the screen. 
I don't have a good method available to capture the output to submit back to
you.
But, I noticed that each trace section was checking md devices.  That got me to
thinking.  I created a Tumbleweed VirtualBox VM with mirrored disks to
determine if that was a factor.  The VM with your kernel does, in fact, exhibit
the same behaviour as the "real machine".  I have included this snapshot of
part of the trace output.  Please let me know if this helps and also if there
is anything else that I can do to assist.

David.