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AJvYcCVsXlp2uJlyyqZBx99id1qLShC9+6AMf3r5Sa9LulgKsAMJ4QFO/TWO69ZshcpyO1Ri+2jn/vQVAa6iY+65@vger.kernel.org, AJvYcCXVpb6GJ7dQ8/EWm1HmDcW9sqXRW5iigfi/dtnNNrTTOdnB+tZQhZMwideK8Dahuy0W5OfFNEr8uiDsWg==@vger.kernel.org X-Gm-Message-State: AOJu0Yz3l6VSzLSOgot6SGuiaH2iAgR3vtTodDaeta0CWKgN1zlNBwv2 tjIyTlSD49EGRTtQiAATJl1erRnTN3tT6CmFIxY8BCcTbGRAiYlsGxYnpnIH9ii94UjU/sBoZlz 5fIw97eUzxJQfOhDaj/yjSPOjO6D0s/g4raA= X-Gm-Gg: ASbGncvXdoyeBQ1RmIXrSnC+Ch+mMxNAErz8TZpQpn7MaCdDuMVgzwAIEhrYdSkzkBY 9TzrXPXTg8dunwaMwMyPqZxYzodEmzwp8nHiuYB1B X-Google-Smtp-Source: AGHT+IGfwjdSn2wvrk/Kn99SIO9d89rRMrWGfTmIqA+a1OvCy95oe+MDxJlwx6rYYI3XBhfWwPUKgcPlma7D2Mh57yY= X-Received: by 2002:a4a:d024:0:b0:5f7:3654:4595 with SMTP id 006d021491bc7-5f7365448a1mr9262674eaf.5.1736835778552; Mon, 13 Jan 2025 22:22:58 -0800 (PST) Precedence: bulk X-Mailing-List: linux-block@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 References: In-Reply-To: From: Mikhail Gavrilov Date: Tue, 14 Jan 2025 11:22:47 +0500 X-Gm-Features: AbW1kvbG-gRPiizkMDvNUL8NfFTZ0lsrGVH1cK-7cHH13_zaYnOPeuTxEDq9p_A Message-ID: Subject: Re: 6.13/regression/bisected - after commit f1be1788a32e I see in the kernel log "possible circular locking dependency detected" To: Ming Lei Cc: Christoph Hellwig , axboe@kernel.dk, Linux List Kernel Mailing , Linux regressions mailing list , linux-block@vger.kernel.org, Damien Le Moal Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Wed, Dec 18, 2024 at 7:36=E2=80=AFAM Ming Lei wrot= e: > > This is another deadlock caused by dependency between q->limits_lock and > q->q_usage_counter, same with the one under discussion: > > https://lore.kernel.org/linux-block/20241216080206.2850773-2-ming.lei@red= hat.com/ > > The dependency of queue_limits_start_update() over blk_mq_freeze_queue() > should be cut. > I see that conversation ended without sending any patches. https://lore.kernel.org/linux-block/23008fc2-6e83-4d83-8ea1-4a3f6c0e000c@li= nux.ibm.com/ I am still experiencing this issue in 6.13-rc6 --=20 Best Regards, Mike Gavrilov.