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 X-Spam-Level: X-Spam-Status: No, score=-3.8 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8A83AC433DB for ; Mon, 8 Mar 2021 17:39:45 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 3DE8565267 for ; Mon, 8 Mar 2021 17:39:45 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3DE8565267 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=bugzilla.kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id ADACC89E5F; Mon, 8 Mar 2021 17:39:44 +0000 (UTC) Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by gabe.freedesktop.org (Postfix) with ESMTPS id 68F3089E5F for ; Mon, 8 Mar 2021 17:39:43 +0000 (UTC) Received: by mail.kernel.org (Postfix) with ESMTPS id 82E5865267 for ; Mon, 8 Mar 2021 17:39:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1615225181; bh=baZ0S27yNGsgSRuBQuEc7EQ99mNCKCsVpravg35iT7E=; h=From:To:Subject:Date:From; b=ewEnSLIklu/Pp9hBrzY4P7bUKjL+/VYi4RwJS1AW0Q6rK0KxTNB0kgJr2kyVuvhkR 70rJI9qbMQNnfq6fFXZCiRVxP7kBTSh5HabnIPBBrB6yHIMF3+LqWxxlvEOTYkRlHp Gh2Qyn/XD/XnqTSiXYwgrjJ20CrD+kUlF0UPMuuR5DqQTYDEI72waVVuRWdK3Fv6Gc F8qZZZ0V4Bd6GCuFhxwjDa6yltDWnfEelU2vsnAoGxt1QE6wb0j616BVFsawFqPYaN L0snSL42BxKk7qUJvOasDIf5EgXovAr/NM1FBIMaC+jpVji1xfxvMLn1jg/KmNuLbb OnCraODUlsr8g== From: bugzilla-daemon@bugzilla.kernel.org To: dri-devel@lists.freedesktop.org Subject: [Bug 212137] New: kernel NULL pointer dereference, black screen when using two graphics cards Date: Mon, 08 Mar 2021 17:39:41 +0000 X-Bugzilla-Reason: None X-Bugzilla-Type: new 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: high X-Bugzilla-Who: mail@dennisfoster.us 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: bug_id short_desc product version cf_kernel_version rep_platform op_sys cf_tree bug_status bug_severity priority component assigned_to reporter cf_regression attachments.created Message-ID: 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: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" https://bugzilla.kernel.org/show_bug.cgi?id=212137 Bug ID: 212137 Summary: kernel NULL pointer dereference, black screen when using two graphics cards Product: Drivers Version: 2.5 Kernel Version: 5.11 Hardware: x86-64 OS: Linux Tree: Mainline Status: NEW Severity: high Priority: P1 Component: Video(DRI - non Intel) Assignee: drivers_video-dri@kernel-bugs.osdl.org Reporter: mail@dennisfoster.us Regression: No Created attachment 295741 --> https://bugzilla.kernel.org/attachment.cgi?id=295741&action=edit lspci -vvv On linux v5.11 and above (up to 5.11.4) I cannot longer boot the system (GNOME/Wayland) using two graphics cards. It gets stuck with black screen with no response to keyboard/mouse. In systemd journal there are some messages about kernel bug: Mar 08 11:54:05 homeserver kernel: BUG: kernel NULL pointer dereference, address: 0000000000000008 Mar 08 11:54:05 homeserver kernel: #PF: supervisor read access in kernel mode Mar 08 11:54:05 homeserver kernel: #PF: error_code(0x0000) - not-present page Mar 08 11:54:05 homeserver kernel: PGD 0 P4D 0 Mar 08 11:54:05 homeserver kernel: Oops: 0000 [#1] PREEMPT SMP NOPTI Mar 08 11:54:05 homeserver kernel: CPU: 6 PID: 608 Comm: gnome-shell Tainted: G OE 5.11.4-arch1-1 #1 Mar 08 11:54:05 homeserver kernel: Hardware name: Gigabyte Technology Co., Ltd. A320M-S2H/A320M-S2H-CF, BIOS F2 11/03/2020 Mar 08 11:54:05 homeserver kernel: RIP: 0010:drm_gem_handle_create_tail+0xcb/0x190 [drm] Mar 08 11:54:05 homeserver kernel: Code: 00 48 89 df e8 c6 20 59 f4 45 85 e4 78 77 48 8d 5d 18 4c 89 ee 48 89 df e8 42 fe 00 00 89 c2 85 c0 75 3e 48 8b 85 40 01 00 00 <48> 8b 40 08 48 85 c0 74 0f 4c 89 ee 48 89 ef e8 81 8b 91 f4 85 c0 Mar 08 11:54:05 homeserver kernel: RSP: 0018:ffffb7a7c16bfd30 EFLAGS: 00010246 Mar 08 11:54:05 homeserver kernel: RAX: 0000000000000000 RBX: ffffa0eabe065090 RCX: 0000000000000001 Everything works perfectly fine using current LTS v5.10.21. I am using Radeon RX 470 as a primary card, and the older ATI FirePro 2270 as a secondary one in order to provide two extra monitor outputs. I've attached my lspci output as well as full systemd log. -- You may reply to this email to add a comment. 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