From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 55CFDCD13B1 for ; Fri, 15 Sep 2023 19:33:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236999AbjIOTdX (ORCPT ); Fri, 15 Sep 2023 15:33:23 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33444 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237001AbjIOTdH (ORCPT ); Fri, 15 Sep 2023 15:33:07 -0400 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 78D6719A9 for ; Fri, 15 Sep 2023 12:33:02 -0700 (PDT) Received: by smtp.kernel.org (Postfix) with ESMTPS id 1E71FC433C9 for ; Fri, 15 Sep 2023 19:33:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1694806382; bh=VT1V4cENLhcEh9aQTufxnnY22ZQzaaNuWaEC9amFqtQ=; h=From:To:Subject:Date:From; b=iqyqGKGgozxjQcBPtAi7UrY5a8YfOjm1Fzm63mkG/zP4WBqDwjStOhftUUpgKxvWp mlPZUN5w3TzXk4TyOlYC7U6cWp6f8AnHgVEgibJWYz/K+UZrChuCBUmlo4oAJ4x9s8 epc82WdHl5rt9FfUVqAkU89zxgh2MmXQ3oEQhergCmOX+rwFAhNSEWReqlMaDydDth eo73ImNnd1wkouFzNu0VfVqhKyoN1TYwPAWqhAaWltkYys5dCd9lhKdm9mpFRd+S8X h8Pp/9b/eWUab6Ut73xOnwR0z1gt2MT701Qz4lnavjIBm2yJypILwWSIrmfTfqKRih LF+8NOulZCYfQ== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id EDE85C53BC6; Fri, 15 Sep 2023 19:33:01 +0000 (UTC) From: bugzilla-daemon@kernel.org To: linux-scsi@vger.kernel.org Subject: [Bug 217914] New: scsi_eh_1 process high cpu after upgrading to 6.5 Date: Fri, 15 Sep 2023 19:33:01 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: IO/Storage X-Bugzilla-Component: SCSI X-Bugzilla-Version: 2.5 X-Bugzilla-Keywords: X-Bugzilla-Severity: high X-Bugzilla-Who: laktak@cdak.net X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: linux-scsi@vger.kernel.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version rep_platform op_sys bug_status bug_severity priority component assigned_to reporter cf_regression cf_bisect_commit Message-ID: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugzilla.kernel.org/ Auto-Submitted: auto-generated MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org https://bugzilla.kernel.org/show_bug.cgi?id=3D217914 Bug ID: 217914 Summary: scsi_eh_1 process high cpu after upgrading to 6.5 Product: IO/Storage Version: 2.5 Hardware: All OS: Linux Status: NEW Severity: high Priority: P3 Component: SCSI Assignee: linux-scsi@vger.kernel.org Reporter: laktak@cdak.net Regression: Yes Bisected 624885209f31eb9985bf51abe204ecbffe2fdeea commit-id: Overview: Several users report that after upgrading from 6.4.12 to 6.5 the process scsi_eh_1 will constantly consume >10% CPU resources. This happens most oft= en in VMs. Steps to Reproduce: - Create a VM (e.g. VMware Fusion) - Create an SCSI disk - Connect a virtual CD ROM (IDE) - Boot a 6.4.12 kernel - Boot a 6.5 kernel Actual Results: - no issues for the 6.4.12 kernel - scsi_eh consumes too much CPU with the 6.5 kernel Expected Results: scsi_eh should not consume significant resources. Build Date & Hardware: Linux arch 6.5.2-arch1-1 #1 SMP PREEMPT_DYNAMIC Wed, 06 Sep 2023 21:01:01 += 0000 x86_64 GNU/Linux inside a VMware Fusion VM Additional Builds and Platforms: Other users were able to reproduce the error on bare metal hardware. Additional Information: More details can be found in this thread: https://bbs.archlinux.org/viewtopic.php?id=3D288723 The users loqs and leonshaw helped to narrow it down to this commit: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?= id=3D624885209f31eb9985bf51abe204ecbffe2fdeea good: 6.4.0-rc1-1-00007-g152e52fb6ff1 bad: 6.4.0-rc1-1-00008-g624885209f31 --=20 You may reply to this email to add a comment. You are receiving this mail because: You are the assignee for the bug.=