Comment 57 for bug 1470250

I'm now able to reproduce this bug on demand. It takes just under an hour to reproduce. I'm going to to try to reproduce a few more times to make sure it's consistent. If the reproduce is consistent, I'll list all the steps necessary.

Basically I'm using the tiotest benchmark from tiobench. The last supported version of tiotest for Ubuntu was in Precise, but the Precise version works fine on Wily, Vivid and Trusty. If the reproducer is consistent, I'll post a script with all the arguments to produce the correct IO pattern, if anyone else wants to test.

Now that I can reproduce this bug, I can run some of my own tests to try and figure out what is happening.