linux-kernel - Re: [PATCH v3 00/19] mm/ksw: Introduce real-time Kernel Stack Watch debugging tool

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Message-ID: <CAG_fn=V5LUhQQeCo9cNBKX1ys3OivB49TuSeWoPN-MPT=YTG6g@mail.gmail.com>
Date: Fri, 12 Sep 2025 08:41:54 +0200
From: Alexander Potapenko <glider@...gle.com>
To: Jinchao Wang <wangjinchao600@...il.com>
Cc: Andrew Morton <akpm@...ux-foundation.org>, Masami Hiramatsu <mhiramat@...nel.org>, 
	Peter Zijlstra <peterz@...radead.org>, Mike Rapoport <rppt@...nel.org>, 
	"Naveen N . Rao" <naveen@...nel.org>, Andrey Ryabinin <ryabinin.a.a@...il.com>, 
	Andrey Konovalov <andreyknvl@...il.com>, Dmitry Vyukov <dvyukov@...gle.com>, 
	Vincenzo Frascino <vincenzo.frascino@....com>, kasan-dev@...glegroups.com, 
	"David S. Miller" <davem@...emloft.net>, Steven Rostedt <rostedt@...dmis.org>, 
	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>, Ingo Molnar <mingo@...hat.com>, 
	Arnaldo Carvalho de Melo <acme@...nel.org>, Namhyung Kim <namhyung@...nel.org>, 
	Mark Rutland <mark.rutland@....com>, 
	Alexander Shishkin <alexander.shishkin@...ux.intel.com>, Jiri Olsa <jolsa@...nel.org>, 
	Ian Rogers <irogers@...gle.com>, Adrian Hunter <adrian.hunter@...el.com>, 
	"Liang, Kan" <kan.liang@...ux.intel.com>, Thomas Gleixner <tglx@...utronix.de>, 
	Borislav Petkov <bp@...en8.de>, Dave Hansen <dave.hansen@...ux.intel.com>, x86@...nel.org, 
	"H. Peter Anvin" <hpa@...or.com>, linux-mm@...ck.org, linux-trace-kernel@...r.kernel.org, 
	linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 00/19] mm/ksw: Introduce real-time Kernel Stack Watch
 debugging tool

On Fri, Sep 12, 2025 at 7:51 AM Jinchao Wang <wangjinchao600@...il.com> wrote:
>
> FYI: The current patchset contains lockdep issues due to the kprobe handler
> running in NMI context. Please do not spend time reviewing this version.
> Thanks.
> --
> Jinchao

Hi Jinchao,

In the next version, could you please elaborate more on the user
workflow of this tool?
It occurs to me that in order to detect the corruption the user has to
know precisely in which function the corruption is happening, which is
usually the hardest part.

-- 
Alexander Potapenko
Software Engineer

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