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 lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (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 EFB08C433F5 for ; Sat, 4 Dec 2021 22:48:56 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4J64cQ6jtGz2ynd for ; Sun, 5 Dec 2021 09:48:54 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=B9+Gc1yp; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=bugzilla.kernel.org (client-ip=139.178.84.217; helo=dfw.source.kernel.org; envelope-from=bugzilla-daemon@bugzilla.kernel.org; receiver=) Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=B9+Gc1yp; dkim-atps=neutral Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4J64bW5dHQz2xtW for ; Sun, 5 Dec 2021 09:48:07 +1100 (AEDT) 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 19FBB60F43 for ; Sat, 4 Dec 2021 22:48:04 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPS id 81AAEC341C2 for ; Sat, 4 Dec 2021 22:48:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1638658083; bh=xHVLniYkiQC011+OBpG5B8C1BehuCfxpbZngUl6TPuU=; h=From:To:Subject:Date:From; b=B9+Gc1ypUvyZcYoZFChqV6aBNBc2jRRahqCOKtB6T2gxvUGCM1qg1jWuZ1WdF5s1V n8RRow0nOldnYUXZJfx8wpDzDjM3tO6AJFNINq63uR/wEAe1D5uh260WvZgSVxqYks deAC8xpxNHb+pUIQp1a7VtQsbHKsWdEdu0lhUxMBBK6Jc8QJ9ZVK/LJN1z6A18D0TM GOLMI66zkQGTx0sOTCeXJx5Ij5AJv+CC0xl4yTO6LwJykuzlhuMLFQbGgjEKiJVYfH Bz4LufgXbT2SYK/D1fwIvAJAx31Igi5eqGiFDxVyjlnsbAIbTcDBVSiBwuhXhQVCuF XWiyqUB3l7KFw== Received: by pdx-korg-bugzilla-2.web.codeaurora.org (Postfix, from userid 48) id 57DB361005; Sat, 4 Dec 2021 22:48:03 +0000 (UTC) From: bugzilla-daemon@bugzilla.kernel.org To: linuxppc-dev@lists.ozlabs.org Subject: [Bug 215217] New: Kernel fails to boot at an early stage when built with GCC_PLUGIN_LATENT_ENTROPY=y (PowerMac G4 3,6) Date: Sat, 04 Dec 2021 22:48:03 +0000 X-Bugzilla-Reason: None X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: AssignedTo platform_ppc-32@kernel-bugs.osdl.org X-Bugzilla-Product: Platform Specific/Hardware X-Bugzilla-Component: PPC-32 X-Bugzilla-Version: 2.5 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: erhard_f@mailbox.org X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P1 X-Bugzilla-Assigned-To: platform_ppc-32@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 cc cf_regression attachments.created 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 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" https://bugzilla.kernel.org/show_bug.cgi?id=3D215217 Bug ID: 215217 Summary: Kernel fails to boot at an early stage when built with GCC_PLUGIN_LATENT_ENTROPY=3Dy (PowerMac G4 3,6) Product: Platform Specific/Hardware Version: 2.5 Kernel Version: 5.16-rc3 Hardware: PPC-32 OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: PPC-32 Assignee: platform_ppc-32@kernel-bugs.osdl.org Reporter: erhard_f@mailbox.org CC: christophe.leroy@csgroup.eu Regression: No Created attachment 299871 --> https://bugzilla.kernel.org/attachment.cgi?id=3D299871&action=3Dedit kernel .config (5.16-rc3, PowerMac G4 DP) Get this on my PowerMac G4 DP when I build a kernel with GCC_PLUGIN_LATENT_ENTROPY=3Dy. The kernel gets decompressed but shortly afterwards the machine freezes, displaying in black letters on an entirely white screen: done found display : /pci@f0000000/ATY,AlteracParent@10/ATY,Alterac_B@1, opening... Same kernel config built without GCC_PLUGIN_LATENT_ENTROPY just boots fine. Happens on v5.15.5 and v5.16-rc3. I did not test other kernel versions yet. My Talos II (Power9) on the other hand just works fine with a GCC_PLUGIN_LATENT_ENTROPY=3Dy built kernel. --=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.=