Debugging and logging crashing?

Hi, my game crashes, and I have to figure out why and fix it. Is there any tool or option to log events to a file?
Profiler runs out of samples for some frames, lots of physics with lots of optimizations, etc.
Unity Editor also crashed during playtesting.

Edit: Found the logs

Unity Editor [version: Unity 5.0.1f1_5a2e8fe35a68]

Unity.exe caused an Access Violation (0xc0000005)
  in module Unity.exe at 0033:40578432.

Error occurred at 2015-06-08_090130.
C:\Unity5\Editor\Unity.exe, run by [redacted].
87% memory in use.
16367 MB physical memory [2126 MB free].
16918 MB paging file [438 MB free].
8388608 MB user address space [8384451 MB free].
Write to location c8070088 caused an access violation.

Here: Unity - Manual: Log files

Also since you are asking for a tool, there is an Asset called Reporter which might be helpful on devices also.