Comment 9 for bug 1371233

Found a working kernel: on Ubuntu 14.04 live system with 3.13.0-24-generic I can run ddrescue which found > 50 errors on the HDD so far, but the error doesn't occur and ddrescue proceed - slowly, but at least it does! Here's the thing: running the 3.13.0-24-generic kernel on Ubuntu installation doesn't work, so that I assume it's not just a kernel issue or not a kernel issue at all, but related to an upgraded apt package. How to proceed? How is bisecting done?