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[90.235.1.92]) by smtp.gmail.com with ESMTPSA id 2adb3069b0e04-52fd5bd0bf6sm2273906e87.67.2024.07.31.06.38.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 31 Jul 2024 06:38:36 -0700 (PDT) From: Uladzislau Rezki X-Google-Original-From: Uladzislau Rezki Date: Wed, 31 Jul 2024 15:38:33 +0200 To: Huang Adrian Cc: Uladzislau Rezki , ahuang12@lenovo.com, akpm@linux-foundation.org, andreyknvl@gmail.com, bhe@redhat.com, dvyukov@google.com, glider@google.com, hch@infradead.org, kasan-dev@googlegroups.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, ryabinin.a.a@gmail.com, sunjw10@lenovo.com, vincenzo.frascino@arm.com Subject: Re: [PATCH 1/1] mm/vmalloc: Combine all TLB flush operations of KASAN shadow virtual address into one operation Message-ID: References: <20240730093630.5603-1-ahuang12@lenovo.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: X-Rspamd-Queue-Id: 4CC6840021 X-Stat-Signature: syc4fabbt5ce57knofkjjdjixxedne5x X-Rspamd-Server: rspam09 X-Rspam-User: X-HE-Tag: 1722433119-284998 X-HE-Meta: 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 PmvRtC6Z 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.019106, 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, Jul 31, 2024 at 08:39:00AM +0800, Huang Adrian wrote: > On Wed, Jul 31, 2024 at 12:42 AM Uladzislau Rezki wrote: > > Thank you for posting this! So tasklist_lock is not a problem. > > I assume you have a full output of lock_stat. Could you please > > paste it for v6.11-rc1 + KASAN? > > Full output: https://gist.github.com/AdrianHuang/2c2c97f533ba467ff32781590279ccc9 > I do not see anything obvious. So it means that CSD lock debugging should be done. But this is another story :) Thank you for helping! -- Uladzislau Rezki