Comment 2 for bug 1382579

I see this issue in my local setup approx. 1 in 10 times.

"Length too long" exception message is coming from ./.tox/dsvm-functional/lib/python2.7/site-packages/subunit/v2.py (StreamResultToBytes.__write_packet() function - line no 206) - raise ValueError(Length too long: %r" % base_length)

The issue is seen when the size of the testr log file (eg. .testrepository/25 ) size goes into MBs.
Here is one log file when the failure is seen
http://paste.openstack.org/show/121895/

In the success cases the testr log file is approx . 6940 bytes