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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 91FFAC433EF for ; Wed, 12 Jan 2022 20:23:36 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 9EA4D10F93E; Wed, 12 Jan 2022 20:23:35 +0000 (UTC) Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by gabe.freedesktop.org (Postfix) with ESMTPS id 52FBE10F93E for ; Wed, 12 Jan 2022 20:23:34 +0000 (UTC) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 8860060E16 for ; Wed, 12 Jan 2022 20:23:33 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPS id EF6C5C36AED for ; Wed, 12 Jan 2022 20:23:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1642019013; bh=FvARl0bqBqoIkbUBZ9gMaDtBVjRYfkGbgm/nIHy9tn8=; h=From:To:Subject:Date:In-Reply-To:References:From; b=DsbsgB0TAV2SfmGo0T/hS7Bs/AR6yTUHHkewMPhcj7umqGQRi49B+Sxn/dnkFdpST M9hQccqLvoTiFURdKTdHOoujLb0YfZVhAJqN1I0QWumbnQxUDnZ4kD0vE+oEekPrZE BuO354Tt7mXJyzfaqsBd26UI7Fa+iEY/V8l0TOPJv8bjXjAqSF0iurigebxAJupLbp xUd7oQrH83y2HwDE9CRE5us+GKmVyANiGDAt7+22MzPWaPT9gbcgr7CWCvYbyFaMzL AcZVVzlO6BI+7aHTI1t+IhfiaBu6cPQkaM6apTbCjtELWFKmZOwPAo/xGfn3T0Um+S Qvsq19hgsA9hQ== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id D7840CC13B0; Wed, 12 Jan 2022 20:23:32 +0000 (UTC) From: bugzilla-daemon@bugzilla.kernel.org To: dri-devel@lists.freedesktop.org Subject: [Bug 215445] AMDGPU -- UBSAN: invalid-load in amdgpu_dm.c:5882:84 - load of value 32 is not a valid value for type '_Bool' Date: Wed, 12 Jan 2022 20:23:32 +0000 X-Bugzilla-Reason: None X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: AssignedTo drivers_video-dri@kernel-bugs.osdl.org X-Bugzilla-Product: Drivers X-Bugzilla-Component: Video(DRI - non Intel) X-Bugzilla-Version: 2.5 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: bogdan.pylypenko107@gmail.com X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P1 X-Bugzilla-Assigned-To: drivers_video-dri@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 MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" https://bugzilla.kernel.org/show_bug.cgi?id=3D215445 --- Comment #7 from Bogdan (bogdan.pylypenko107@gmail.com) --- UBSAN <- Undefined Behaviour sanity checker > Compile-time instrumentation is used to detect various undefined behaviou= rs > at runtime. > For more details, see: Documentation/dev-tools/ubsan.rst UBSAN is just a technology that help to detect various bugs, not a bug sour= ce. I resolve problem by kernel rebuild: - rebuild 5.15.12 with different kernel config - have no UBSAN warnings (big changes made - can not detect which kernel config parameter resolve problem= ); - update to 5.15.13 - have no UBSAN warnings, have single crash in amdgpu driver with closing X subsystem (sysrq helps to restart display manager); - update to 5.16.0 - have no UBSAN warnings, but have high latencies (12-15= ms) in [drm_atomic_helper_wait_for_flip_done] in high loaded mode (detected by latencytop program). --=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.=