No distinction between *just* crash problems vs. the whole set

[Evan]

Once we start collecting reports for RecoverableProblem, Hang, Package, KernelOops, and other ProblemTypes, we should ensure that we continue to track the average errors per day for Ubuntu 12.10 and future releases with *just* the Crash ProblemType. This will let us compare like-for-like against Ubuntu 12.04, which only had the Crash ProblemType.

Obviously we should also maintain a line for *all* types of problems.

[Matthew Paul Thomas (mpt)]

This is a special case of the general problem, "show me errors, in version Y, of types that were also captured in version X".

For a particularly thorny example, imagine that Ubuntu 12.10 reports hangs of 30 seconds or longer, while Ubuntu 13.04 ratchets that down to 10 seconds or longer. On the graph, hangs of over 30 seconds should show up on the "13.04 by 12.10 standards" line, while hangs of between 10 and 30 seconds should not.

[Evan (ev)]

This is fixed in production. We now have a separate line for "by 12.04 standards." Matthew, you mentioned that we need some way of tracking the usage of recoverable errors, as we don't want its usage growth among developers to add noise to the graph. I've filed bug 1084079 for that.