Re: [PATCH v15 00/10] arm64: Add kernel probes (kprobes) support

[Catalin Marinas]

On Fri, Jul 08, 2016 at 12:35:44PM -0400, David Long wrote:
> David A. Long (3):
>   arm64: Add HAVE_REGS_AND_STACK_ACCESS_API feature
>   arm64: Add more test functions to insn.c
>   arm64: add conditional instruction simulation support
> 
> Pratyush Anand (2):
>   arm64: Blacklist non-kprobe-able symbol
>   arm64: Treat all entry code as non-kprobe-able
> 
> Sandeepa Prabhu (4):
>   arm64: Kprobes with single stepping support
>   arm64: kprobes instruction simulation support
>   arm64: Add kernel return probes support (kretprobes)
>   kprobes: Add arm64 case in kprobe example module
> 
> William Cohen (1):
>   arm64: Add trampoline code for kretprobes

I applied these patches on top of the arm64 for-next/core branch an
tried to run the resulting kernel in a guest (on a Juno platform using
both kvmtool and qemu) with KPROBES_SANITY_TEST enabled. Unfortunately,
the kernel fails to boot with lots of "Unexpected kernel single-step
exception at EL1".

Did you manage to run Kprobes in a guest before?

-- 
Catalin