[amluto]

In the history of Linux that I'm aware of (and I've been nose-deep in this stuff on and off for quite a while), these issues are almost never debugged because they're reproduced -- they're debugged because someone who actually understands the messy interactions of the code and hardware in question thinks about them.

A reproducer might not actually be useful because there is basically no way short of fancy hardware tracing to figure out what the reproducer is doing.