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Fri, 03 Apr 2026 20:23:57 -0700 (PDT) Received: from c7-smtp-2023.dev.purestorage.com ([2620:125:9017:12:36:3:5:0]) by smtp-relay.gmail.com with ESMTPS id d75a77b69052e-50d4b9939c4sm4583371cf.22.2026.04.03.20.23.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 03 Apr 2026 20:23:57 -0700 (PDT) X-Relaying-Domain: purestorage.com Received: from dev-ushankar.dev.purestorage.com (unknown [IPv6:2620:125:9007:640:ffff::2c94]) by c7-smtp-2023.dev.purestorage.com (Postfix) with ESMTP id 9CA8734023F; Fri, 3 Apr 2026 21:23:55 -0600 (MDT) Received: by dev-ushankar.dev.purestorage.com (Postfix, from userid 1557716368) id B7001E54F59; Fri, 3 Apr 2026 21:23:55 -0600 (MDT) From: Uday Shankar Subject: [PATCH 0/2] ublk: fix infinite loop in ublk server teardown Date: Fri, 03 Apr 2026 21:23:54 -0600 Message-Id: <20260403-cancel-v1-0-86e5a6b3d3af@purestorage.com> Precedence: bulk X-Mailing-List: linux-block@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-B4-Tracking: v=1; b=H4sIAEqE0GkC/6tWKk4tykwtVrJSqFYqSi3LLM7MzwNyDHUUlJIzE vPSU3UzU4B8JSMDIzMDEwNj3eTEvOTUHN2kJLNEQyNLI1Njk2QloOKCotS0zAqwQdGxtbUAilB TPFgAAAA= X-Change-ID: 20260403-cancel-bb6a1292534c To: Ming Lei , Caleb Sander Mateos , Jens Axboe , Shuah Khan Cc: linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, Uday Shankar X-Mailer: b4 0.14.2 Fix an infinite loop in ublk server teardown which can arise when a ublk server dies while recovering a device. Also add a test which demonstrates the problem and verifies the fix. Signed-off-by: Uday Shankar --- Uday Shankar (2): ublk: reset per-IO canceled flag on each fetch selftests: ublk: test that teardown after incomplete recovery completes drivers/block/ublk_drv.c | 21 ++++++---- tools/testing/selftests/ublk/Makefile | 1 + tools/testing/selftests/ublk/fault_inject.c | 51 +++++++++++++++++++++++-- tools/testing/selftests/ublk/kublk.c | 4 ++ tools/testing/selftests/ublk/kublk.h | 3 ++ tools/testing/selftests/ublk/test_generic_17.sh | 35 +++++++++++++++++ 6 files changed, 104 insertions(+), 11 deletions(-) --- base-commit: cdd71b7feb3674d14c5edd9c133242ddf9a363f2 change-id: 20260403-cancel-bb6a1292534c Best regards, -- Uday Shankar