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Wed, 24 Sep 2025 19:05:33 -0700 (PDT) Date: Thu, 25 Sep 2025 10:05:22 +0800 From: Jinchao Wang To: Randy Dunlap Cc: Andrew Morton , Masami Hiramatsu , Peter Zijlstra , Mike Rapoport , Alexander Potapenko , Jonathan Corbet , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Juri Lelli , Vincent Guittot , Dietmar Eggemann , Steven Rostedt , Ben Segall , Mel Gorman , Valentin Schneider , Arnaldo Carvalho de Melo , Namhyung Kim , Mark Rutland , Alexander Shishkin , Jiri Olsa , Ian Rogers , Adrian Hunter , "Liang, Kan" , David Hildenbrand , Lorenzo Stoakes , "Liam R. Howlett" , Vlastimil Babka , Suren Baghdasaryan , Michal Hocko , Nathan Chancellor , Nick Desaulniers , Bill Wendling , Justin Stitt , Kees Cook , Alice Ryhl , Sami Tolvanen , Miguel Ojeda , Masahiro Yamada , Rong Xu , Naveen N Rao , David Kaplan , Andrii Nakryiko , Jinjie Ruan , Nam Cao , workflows@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, linux-mm@kvack.org, llvm@lists.linux.dev, Andrey Ryabinin , Andrey Konovalov , Dmitry Vyukov , Vincenzo Frascino , kasan-dev@googlegroups.com, "David S. Miller" , Mathieu Desnoyers , linux-trace-kernel@vger.kernel.org Subject: Re: [PATCH v5 04/23] mm/ksw: add build system support Message-ID: References: <20250924115124.194940-1-wangjinchao600@gmail.com> <20250924115124.194940-5-wangjinchao600@gmail.com> <3504b378-4360-4e55-b28d-74aabd4308d7@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <3504b378-4360-4e55-b28d-74aabd4308d7@infradead.org> X-Rspamd-Server: rspam08 X-Rspamd-Queue-Id: 8415A100005 X-Stat-Signature: p9ata9j89ir3p1tdb61fgq5qtr8uqxxa X-Rspam-User: X-HE-Tag: 1758765935-830111 X-HE-Meta: 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 553qpu0L D0iMnOFIzmx1bhDbeAbMoEXzQ849lveHjcPAxBpIfL3wzSwYUvtPZLei+vgkVz/9ixuYZVKqa9hXpVRLcaROn5q35UWrBioMtZmMt6bO3S4jIIL39LizVX415/wl8eMjDGBW3wAtx4b07PoqRy0ZPvWwwOz+cYaFa6ZHcw6XBapO8rEuY6wyZ/RkicjJNMxbHmBV4h71AKzgox69oer/VS0aoeLNXPodWRFjxkGxcRBXw/fr4F4cVDbBk4d3PcV2hyeZhbeDMqeGzTM12yElgMKlnF/c26Q3drzEqmBDynLZVahwg8DLFB3owOB4pPzvEDNHwFyBwS/4a533aSSVewZDct44Y6zzHzTCnnS7GnTKA5Add47eFEWpRRbHY4wBFG6UoKv2MlikStsMeT5Qy7clFbMmbxFyegp35ngsxH4HwpFtEKaSi43GVcfgRI6UumSrZou7yz+hcMVDHf5fH19OwS7xQG1E5rWn3WXEaDOvx41ogLsNpq0yqvsx7Ld5kPt4YIrlo1Bc5v0LCfSmxcE5OM9Gz/CrszkYidQt/0ZR1dmjNyGM57QnJKE1kbcEOapZt3P8AomzGN7Kltx+L6eC90aEWNTPgPus0 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Wed, Sep 24, 2025 at 10:06:10AM -0700, Randy Dunlap wrote: > > > On 9/24/25 4:50 AM, Jinchao Wang wrote: > > Add Kconfig and Makefile infrastructure. > > > > The implementation is located under `mm/kstackwatch/`. > > > > Signed-off-by: Jinchao Wang > > --- > > mm/Kconfig.debug | 8 ++++++++ > > mm/Makefile | 1 + > > mm/kstackwatch/Makefile | 2 ++ > > mm/kstackwatch/kernel.c | 23 +++++++++++++++++++++++ > > mm/kstackwatch/kstackwatch.h | 5 +++++ > > mm/kstackwatch/stack.c | 1 + > > mm/kstackwatch/watch.c | 1 + > > 7 files changed, 41 insertions(+) > > create mode 100644 mm/kstackwatch/Makefile > > create mode 100644 mm/kstackwatch/kernel.c > > create mode 100644 mm/kstackwatch/kstackwatch.h > > create mode 100644 mm/kstackwatch/stack.c > > create mode 100644 mm/kstackwatch/watch.c > > > > diff --git a/mm/Kconfig.debug b/mm/Kconfig.debug > > index 32b65073d0cc..89be351c0be5 100644 > > --- a/mm/Kconfig.debug > > +++ b/mm/Kconfig.debug > > @@ -309,3 +309,11 @@ config PER_VMA_LOCK_STATS > > overhead in the page fault path. > > > > If in doubt, say N. > > + > > +config KSTACK_WATCH > > + bool "Kernel Stack Watch" > > + depends on HAVE_HW_BREAKPOINT && KPROBES && FPROBE && STACKTRACE > > + help > > + A lightweight real-time debugging tool to detect stack corrupting. > > corruption. Thanks, will fix in next version. > > > + > > + If unsure, say N. > > > -- > ~Randy > -- Jinchao