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 F30E4CAC592 for ; Fri, 19 Sep 2025 22:28:13 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [127.0.0.1]) by lists.ozlabs.org (Postfix) with ESMTP id 4cT6bJ4YVzz2xnk; Sat, 20 Sep 2025 08:28:12 +1000 (AEST) Authentication-Results: lists.ozlabs.org; arc=none smtp.remote-ip=172.105.4.254 ARC-Seal: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1758320892; cv=none; b=N+vIXjG0CJfINms5a2LdvQaq7bbSj5Tq2WYysl2VgWipcBnGoz2RcR3B3zutNV2XfOWJDxydGjxdOr9eyI2fpROl2X8IdOJz2rzZVfYO302GfcGJqlSK+5dxh76yaikjsYt7zXuMUkEhpX/MOIaIeBGarpC+RHnVznsTG8nSVuN9M09sVs8YFzS7d1KAOVPmz/cGRBHa8RJcyyk37hMrRYycwiDtMSBE+Wfx/4RR9t2uNzNYEr9ae+xO80PC/TSmahdNUV1hgAfZDgf9spUbbLP4VWtt49RK3ABTudIzwxzhNiHryDTTDXhWaybMT1ZMAimmXWQwLOPWF8JbEAIMWQ== ARC-Message-Signature: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1758320892; c=relaxed/relaxed; bh=q5k0pAHpGk5J40AE2Yfvv+Ov14heouw97Y5iCG2zpaM=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=dLxObyPDZ3G28Nq95yM8McplECuaonCBpkPNQcUX7fvWZdJJYxSjdX2m8P3GAIKWCCYBdrWPUorwDB/eAILxYCEyqdubVo0HBonn1+AeK7+I1DobGeOAFwSjgorp8IfkCWwvDkV7sTaqhg9oGM/BHXHPmfMJU65VlbS4XT5oo2uxzIWoU+ohgasYIrjWCYYa/eNTCYz+ep3ct2epIwv2S9f+ge9SYGqvwhdiMOFxfFTTPfCA8Eveev2uFvkBRNY+FsCUZs/8oqA5FfQRZ8yJQRwQQPjAWlMzrSJnw94tdr7rLu6AgG+6yxmo+KeAAXmNs23Y5YsugvYxMSPthlDRrQ== ARC-Authentication-Results: i=1; lists.ozlabs.org; dmarc=pass (p=quarantine dis=none) header.from=kernel.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=F8b5++pT; dkim-atps=neutral; spf=pass (client-ip=172.105.4.254; helo=tor.source.kernel.org; envelope-from=nathan@kernel.org; receiver=lists.ozlabs.org) smtp.mailfrom=kernel.org Authentication-Results: lists.ozlabs.org; dmarc=pass (p=quarantine dis=none) header.from=kernel.org 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=F8b5++pT; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=kernel.org (client-ip=172.105.4.254; helo=tor.source.kernel.org; envelope-from=nathan@kernel.org; receiver=lists.ozlabs.org) Received: from tor.source.kernel.org (tor.source.kernel.org [172.105.4.254]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4cT6bJ0psqz2xck for ; Sat, 20 Sep 2025 08:28:12 +1000 (AEST) Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by tor.source.kernel.org (Postfix) with ESMTP id 46B6F60194; Fri, 19 Sep 2025 22:28:09 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6B311C4CEF0; Fri, 19 Sep 2025 22:28:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1758320889; bh=Y84KteTHYJ4DAZ8QIqjiQleYtmkFVDSOiUlD/F/ayqc=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=F8b5++pTwDpYbFDh6mS5iqYWkGHN1t6Xtia5PUSoL/e9NMLxXXg2Ty9uHcjgzNR9o DuJUHFeWkFVe25nvOb54iu52ojHitqvM+/9JZiVJDkK8Y6rn1rKvU9DCHkr+Htca/C UVyHpXQ7lABHJ3p9HEaclQ1oShkL7r5pH7axcuMVI0L38vWZNROwU8bB1X9PlN6ckO 8BG6+r1hh0PNZWTJyw1R5Ax16NqMYa3wgpz/vtYGEOMGycqkqAJZYvfamSORVv0OQd h2zR8Z9pMDSyjRO0XiNCh8S7Zcs/RmA9dZFVBB6wwoN/fRPIm+sWCKnfbdvTaes1e6 JngcGHeOhYxGA== Date: Fri, 19 Sep 2025 15:28:04 -0700 From: Nathan Chancellor To: Dan Carpenter Cc: clang-built-linux , Naresh Kamboju , lkft-triage@lists.linaro.org, Nick Desaulniers , Anders Roxell , linuxppc-dev@lists.ozlabs.org Subject: Re: clang nightly builds failing on PowerPc Message-ID: <20250919222804.GA44805@ax162> References: <20230612185424.GA2891387@dev-arch.thelio-3990X> X-Mailing-List: linuxppc-dev@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Archive: , List-Subscribe: , , List-Unsubscribe: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Hi Dan, On Fri, Sep 19, 2025 at 02:17:41PM +0300, Dan Carpenter wrote: > Hi the Clang nightly builds are failing on PowerPC with the > ppc64e_defconfig. They started failing on Sept 11. Clang is failing on > PowerPC in both linux-next and stable so it seems like something changed > in Clang and not the kernel. > > Unfortunately I don't have ready access to the /tmp/vgetrandom-fef220.c > file that was generated, but hopefully these logs are enough to reproduce > the issue. Indeed, thanks a lot for the report. I was able to reproduce this locally, bisect LLVM to find the problematic commit, and report it upstream: https://github.com/llvm/llvm-project/pull/157206#issuecomment-3313700961 Hopefully it can be resolved quickly. Cheers, Nathan