From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9A69613AD1C; Fri, 27 Sep 2024 17:24:11 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727457851; cv=none; b=ZR7e1GwFqDhGe4riJRcNQbLxDmygbK+0nrEdw+DJNLzggwHVu2bUlkTLfmjjHfgDsowbwdYJqmvkPpljJE1tjRYerWN6gjwhC95p3IDiWFisAZwO8ZJtzNQBmix7WsFLC5WQafiPOkwIe1AZvdtT4OpUTbSOxgpf/7d7swO0pGI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727457851; c=relaxed/simple; bh=wnv7RPPgGCLIynbMHaq85HN0wyTllmJ1Kt4B7AqPZ04=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=pp89X88MhZpHffIxFFvb5Qas/ze8B1mkYZ6iDHK3awUXUU3HuyiAD5CNdMJqGMvXf5TkHEnhb7235OCMw0fAzl8OA5KXvBIpb+84pHac14WNP6MUzrf8OX6zQOzhgU4E/a5wffLtdH54PyDGcXlJwVxzKab2o/YFsVLu/3jsUmM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=zx2c4.com header.i=@zx2c4.com header.b=lL0XU8kv; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=zx2c4.com header.i=@zx2c4.com header.b="lL0XU8kv" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7A6EEC4CEC4; Fri, 27 Sep 2024 17:24:10 +0000 (UTC) Authentication-Results: smtp.kernel.org; dkim=pass (1024-bit key) header.d=zx2c4.com header.i=@zx2c4.com header.b="lL0XU8kv" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=zx2c4.com; s=20210105; t=1727457847; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=BequuRoJr1pAWOgY2c3ww2p0CVBUraXUs5WRnDceAkw=; b=lL0XU8kvoFp6NdtHZLgjSD5mVsgYWyEiVmL/m5DIArEYdF+dhYgE7lPdlsUxBnrWdQQK4M wSs79zMYy328fMX+DEtGGSoj4Qc5XqvvVy5t7Ee/E49slo3LuldbUvf2eBuUzEpqkBGEcH 0a0UAD8/Qtc50D7Uu/m21PSOuW3KUZ0= Received: by mail.zx2c4.com (ZX2C4 Mail Server) with ESMTPSA id 1df0590a (TLSv1.3:TLS_AES_256_GCM_SHA384:256:NO); Fri, 27 Sep 2024 17:24:07 +0000 (UTC) Date: Fri, 27 Sep 2024 19:24:05 +0200 From: "Jason A. Donenfeld" To: christophe.leroy@csgroup.eu, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org, skhan@linuxfoundation.org Cc: kernel test robot Subject: Re: [PATCH] selftests: vDSO: align stack for O2-optimized memcpy Message-ID: References: <202409241558.98e13f6f-oliver.sang@intel.com> <20240924115001.916112-1-Jason@zx2c4.com> Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20240924115001.916112-1-Jason@zx2c4.com> Hi Shuah, On Tue, Sep 24, 2024 at 01:47:23PM +0200, Jason A. Donenfeld wrote: > When switching on -O2, gcc generates SSE2 instructions that assume a > 16-byte aligned stack, which the standalone test's start point wasn't > aligning. Fix this with the usual alignnent sequence. > > Fixes: ecb8bd70d51 ("selftests: vDSO: build tests with O2 optimization") > Reported-by: kernel test robot > Closes: https://lore.kernel.org/oe-lkp/202409241558.98e13f6f-oliver.sang@intel.com > Signed-off-by: Jason A. Donenfeld Just FYI, I'm expecting that this is a patch you take through your tree for 6.12, and hopefully before rc1, as automated testing is failing. Jason