Re: [RFC] Unify KVM kernel-space and user-space code into a single project

Andi Kleen
2010-03-24T07:38:58Z

> If you're profiling a single guest it makes more sense to do this from
> inside the guest - you can profile userspace as well as the kernel.

I'm interested in debugging the guest without guest cooperation.

In many cases qemu's new gdb stub works for that, but in some cases
I would prefer instruction/branch traces over standard gdb style
debugging.

I used to use that very successfully with simulators in the past
for some hard bugs.

-Andi
--
ak@linux.intel.com -- Speaking for myself only.