Re: [PATCH 0/6] A few cpuidle vs rcu fixes

[Mark Rutland]

Hi Peter,

On Mon, Jan 23, 2023 at 09:50:09PM +0100, Peter Zijlstra wrote:
> 0-day robot reported graph-tracing made the cpuidle-vs-rcu rework go splat.

Do you have a link toe the splat somewhere?

I'm assuming that this is partially generic, and I'd like to make sure I test
the right thing on arm64. I'll throw my usual lockdep options at the ftrace
selftests...

Thanks,
Mark.

> 
> These patches appear to cure this, the ftrace selftest now runs to completion
> without spamming scary messages to dmesg.
> 
> ---
>  arch/x86/include/asm/atomic64_32.h | 44 +++++++++++++++++++-------------------
>  arch/x86/include/asm/atomic64_64.h | 36 +++++++++++++++----------------
>  arch/x86/include/asm/kvmclock.h    |  2 +-
>  arch/x86/include/asm/paravirt.h    |  2 +-
>  arch/x86/include/asm/pvclock.h     |  3 ++-
>  arch/x86/kernel/cpu/vmware.c       |  2 +-
>  arch/x86/kernel/ftrace.c           |  3 +++
>  arch/x86/kernel/kvmclock.c         |  6 +++---
>  arch/x86/kernel/pvclock.c          | 22 +++++++++++++------
>  arch/x86/kernel/tsc.c              |  7 +++---
>  arch/x86/xen/time.c                | 12 +++++++++--
>  drivers/cpuidle/cpuidle.c          |  2 +-
>  drivers/cpuidle/poll_state.c       |  2 --
>  include/linux/math64.h             |  4 ++--
>  include/linux/sched/clock.h        |  8 +++----
>  kernel/sched/clock.c               | 27 +++++++++++++++++------
>  16 files changed, 107 insertions(+), 75 deletions(-)
> 
>