Re: [PATCH v13 07/14] unwind_user/deferred: Make unwind deferral requests NMI-safe

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Subject: Re: [PATCH v13 07/14] unwind_user/deferred: Make unwind deferral requests NMI-safe
From: Steven Rostedt <rostedt@xxxxxxxxxxx>
Date: Mon, 14 Jul 2025 11:11:58 -0400
Cc: Steven Rostedt <rostedt@xxxxxxxxxx>, linux-kernel@xxxxxxxxxxxxxxx, linux-trace-kernel@xxxxxxxxxxxxxxx, bpf@xxxxxxxxxxxxxxx, x86@xxxxxxxxxx, Masami Hiramatsu <mhiramat@xxxxxxxxxx>, Mathieu Desnoyers <mathieu.desnoyers@xxxxxxxxxxxx>, Josh Poimboeuf <jpoimboe@xxxxxxxxxx>, Ingo Molnar <mingo@xxxxxxxxxx>, Jiri Olsa <jolsa@xxxxxxxxxx>, Namhyung Kim <namhyung@xxxxxxxxxx>, Thomas Gleixner <tglx@xxxxxxxxxxxxx>, Andrii Nakryiko <andrii@xxxxxxxxxx>, Indu Bhagat <indu.bhagat@xxxxxxxxxx>, "Jose E. Marchesi" <jemarch@xxxxxxx>, Beau Belgrave <beaub@xxxxxxxxxxxxxxxxxxx>, Jens Remus <jremus@xxxxxxxxxxxxx>, Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, Jens Axboe <axboe@xxxxxxxxx>, Florian Weimer <fweimer@xxxxxxxxxx>, Sam James <sam@xxxxxxxxxx>
In-reply-to: <20250714150516.GE4105545@noisy.programming.kicks-ass.net>

On Mon, 14 Jul 2025 17:05:16 +0200
Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote:

> Urgh; so I hate reviewing code you're ripping out in the next patch :-(

Sorry. It just happened to be developed that way. Patch 10 came about
to fix a bug that was triggered with the current method.

> 
> Let me go stare at that.

Thanks!

-- Steve

Follow-Ups:
- Re: [PATCH v13 07/14] unwind_user/deferred: Make unwind deferral requests NMI-safe
  - From: Peter Zijlstra

References:
- [PATCH v13 00/14] unwind_user: x86: Deferred unwinding infrastructure
  - From: Steven Rostedt
- [PATCH v13 07/14] unwind_user/deferred: Make unwind deferral requests NMI-safe
  - From: Steven Rostedt
- Re: [PATCH v13 07/14] unwind_user/deferred: Make unwind deferral requests NMI-safe
  - From: Peter Zijlstra
- Re: [PATCH v13 07/14] unwind_user/deferred: Make unwind deferral requests NMI-safe
  - From: Steven Rostedt
- Re: [PATCH v13 07/14] unwind_user/deferred: Make unwind deferral requests NMI-safe
  - From: Peter Zijlstra

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