From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5857DEC8 for ; Tue, 2 Jan 2024 04:44:08 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="McnuGcBH" Received: by smtp.kernel.org (Postfix) with ESMTPS id BE9B6C433CA for ; Tue, 2 Jan 2024 04:44:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1704170648; bh=0jnVLGsz//yvuGJVg7h4w/TMjeun92oVKX+CKLoBj3k=; h=From:To:Subject:Date:In-Reply-To:References:From; b=McnuGcBHzzncxc3JUNL+iar9ZWb6QNZ+hRElIekt+8RXCexc5JrukXQY+T0V8kSHg fva3TqoU+55s3XiserbLRGM205cOP4V/FPKvnvVAtuM+JO7O3nrUJxbitAWwzqrT6U 0AtrbOCL2DBsQVWP6U5lNILb5+83UwOd2XRMY+Zf9IO/6tIHCc9ntgYdq9F3nenzPX BZAQJ9ysDJXDM/qpRCui0yDyDA6Q5YBcX1dako2q/oPR6Z1/H42BqwMdf+WtvQXX3q VRPLBMwek+X89LOT47dfDTCM2U6t1doNRA3Cx5X7R5oNTJA8DCUv4bSdlFeoc6z+dT svnrJ9V9TVGFw== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id A61CDC53BD3; Tue, 2 Jan 2024 04:44:08 +0000 (UTC) From: bugzilla-daemon@kernel.org To: linux-ext4@vger.kernel.org Subject: [Bug 217965] ext4(?) regression since 6.5.0 on sata hdd Date: Tue, 02 Jan 2024 04:44:08 +0000 X-Bugzilla-Reason: None X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: AssignedTo fs_ext4@kernel-bugs.osdl.org X-Bugzilla-Product: File System X-Bugzilla-Component: ext4 X-Bugzilla-Version: 2.5 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: ojaswin.mujoo@ibm.com X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: fs_ext4@kernel-bugs.osdl.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugzilla.kernel.org/ Auto-Submitted: auto-generated Precedence: bulk X-Mailing-List: linux-ext4@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 https://bugzilla.kernel.org/show_bug.cgi?id=3D217965 --- Comment #59 from Ojaswin Mujoo (ojaswin.mujoo@ibm.com) --- Hi Matthew, Thanks for testing out the patch and for sharing the results with and witho= ut CR_BEST_AVAIL_LEN commented. Would it be possible for you to add perf probe= s as mentioned in comment 36 and share the result. That'd be helpful in understanding why CR_BEST_AVAIL_LEN is getting stuck. Basically, I am interested in seeing how the scan is happening in CR_GOAL_LEN_FAST vs CR_BEST_AVAIL_LEN. [1] https://bugzilla.kernel.org/show_bug.cgi?id=3D217965#c36 Also, another thing I'd request you to try is, instead of commenting out the code can you run: $ echo "0" > /sys/fs/ext4//mb_best_avail_max_trim_order and rerun the test. This disables most of the code but keeps some of the initial logic. Might help zero down if the issue is in the initial logic or= the disabled code. Thanks again, ojaswin --=20 You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.=