I am an iPAD2 user and I think it's important we are aware the problem not specific to a particular model of iPAD. Rather, it appears across the product line. As a result of IOS 8+ the OS is eating RAM like its a **** Pacman game!! My RAM is consistently in double digits and I only have one app installed which is Smart Memory Pro to monitor my RAM and Processes. I have all background settings turned off, notifications turned off and multitude of other services turned off. Does not improve free RAM.
I've now tested, with success thus far, that I have to free up RAM every time to clear out old data in clipboard to be able to effectively copy paste new data. Obviously not a solution, a PITA workaround. It also requires having to install an app capable of free'g up RAM. Having to revert to an addtl app takes up storage and creates more RAM consumption. It, too, is PITA, in that it does not automatically scan and constantly free up RAM. Freeing up RAM is a manual, user invoked task. An Apple bug fix should include auto free up RAM code built-in. We should not have to constantly take these extra steps to perform a simple process that is already part of the features nor have to download free or purchased apps to monitor and perform steps to compensate for IOS shortfall.
I was all set to upgrade to a IPhone 6 or 6+. Glad I did not. Also thought about upgrading iPad, but will not knowing these issues are across product lines.
On the crash information. I noticed in the Smart Memory Pro app some text info that indicates the app will refresh open apps (I assume means close) to avoid a crash of the iPad. I've also looked in my diagnostic data and can see references to various errors or crash. I assume the diagnostic data is correlated to my apps sporadically shutting down, which may very well be tied to RAM.
I would recommend if you do not have a free RAM app, download and monitor your RAM and see if you, too, are in double or low digits in comparison to your overall installed RAM regardless of iPAD model. I personally like Smart Memory Pro, but there is Free RAM and System Monitor App. (Think those are the names).