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Mon, 03 Nov 2025 07:53:50 -0800 (PST) From: Askar Safin To: mpatocka@redhat.com Cc: Dell.Client.Kernel@dell.com, agk@redhat.com, brauner@kernel.org, dm-devel@lists.linux.dev, ebiggers@kernel.org, kix@kix.es, linux-block@vger.kernel.org, linux-btrfs@vger.kernel.org, linux-crypto@vger.kernel.org, linux-lvm@lists.linux.dev, linux-mm@kvack.org, linux-pm@vger.kernel.org, linux-raid@vger.kernel.org, lvm-devel@lists.linux.dev, milan@mazyland.cz, msnitzer@redhat.com, mzxreary@0pointer.de, nphamcs@gmail.com, pavel@ucw.cz, rafael@kernel.org, ryncsn@gmail.com, safinaskar@gmail.com, torvalds@linux-foundation.org Subject: Re: [PATCH 1/2] pm-hibernate: flush disk cache when suspending Date: Mon, 3 Nov 2025 18:53:45 +0300 Message-ID: <20251103155345.1153213-1-safinaskar@gmail.com> X-Mailer: git-send-email 2.47.3 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Stat-Signature: 65oo97kw45ru78ohd5rcxhb8jy4dqjwd X-Rspam-User: X-Rspamd-Queue-Id: 84686C0002 X-Rspamd-Server: rspam01 X-HE-Tag: 1762185232-748141 X-HE-Meta: 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 5N1pYaZR buqlzDgNiLnmuiFWdbXPX+5MYlFEzmY3yWrniIFJhZjDxo0NxwGzLwjH9H+Uh5VVgNxmfOKRJIG+m48WX6dtGjKOJ+Vc98sxi20Ht2bvvI+VMeP1r1N+B77/bD+I/Ai7ODrs36fM/pbhYORh4LZmp+Et+gOLiz0Jo7cMSWZOCeE3cx7v3O6K4CfMRgrn9nPjgSkHNvVsWUVxM8Oa8wX2MYWyhSS1LT/xuLtPU7jf9Gx/qAhMIMnp5PgwY9p44+AbWaHxMHNn6RR4BcXnDGMSXCyjVMy8erlHlrnqmQojBJcRgWg7Pbb2SurSAyDC8O+xjwvwQuMoTr6JqQox4KUThtdeNiR8bWipmjJg5Tux3zlWugRhAJZC61gj9slwsVGnDNyf2 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: Mikulas Patocka : > [PATCH 1/2] pm-hibernate: flush disk cache when suspending > > There was reported failure that suspend doesn't work with dm-integrity. > The reason for the failure is that the suspend code doesn't issue the > FLUSH bio - the data still sits in the dm-integrity cache and they are > lost when poweroff happens. Thank you! I hope I will test this within 2 weeks. -- Askar Safin