About the time to take some action:
chi linux # git-bisect good Bisecting: 4814 revisions left to test after this [d2e626f45cc450c00f5f98a89b8b4c4ac3c9bf5f] x86: add PAGE_KERNEL_EXEC_NOCACHE
Also.. back in Tartu. A new semester, weather feels crappy and this time I forgot my toothpaste.. 
When you sometimes notice that {% url %} tag does not work for your named urls, then debugging it is easy. Start the python shell:
import app.views
from django.core.urlresolvers import reverse
reverse('named-view-to-be-tested')
If the view doesn’t work, it will either return NoReverseMatch: Not enough positional arguments passed in exception or url.
Thanks to jodal from #django for the tip.