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 BC645386 for ; Thu, 28 Mar 2024 06:54:52 +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=1711608892; cv=none; b=iH0iIrntTfkbuaz+tqP4vEC5YQ/92E9iwTYBqcclcMpX4fxohQXDFNZye4/+aUIh3hBv7lJbEBl4tb3KrejCvZmaVbwSmFaj9kjtRZw57E2K1iC3K5pcbltUG2pwgHAFcJLzipEF0jhgdzRaycxuDSKc7lgvzsr9bxQC5uPM5AQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711608892; c=relaxed/simple; bh=pAvs9WVpXCBSWsI517PYQnV/TaqvtCJ3AYMCColBUUo=; h=MIME-Version:References:In-Reply-To:From:Date:Message-ID:Subject: To:Cc:Content-Type; b=fHzTi8aYOZvh8FsZ+evEXZmdaxGLOmqNtfAO8XSMXtwbNAoXhUtAjmVNTJx9kb/5AIuO9pmgshCLuc410priiI30gzc8MkqCcPz/W0KqvZ4tg8/ARFiGfISUBLJsPeZKWZoCy18JYl3y9xe4UZS6zwxtp28W08QtYnJAQfTiPk8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=aMHhdkQk; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="aMHhdkQk" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 53CD9C433F1 for ; Thu, 28 Mar 2024 06:54:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1711608892; bh=pAvs9WVpXCBSWsI517PYQnV/TaqvtCJ3AYMCColBUUo=; h=References:In-Reply-To:From:Date:Subject:To:Cc:From; b=aMHhdkQkdMCK0aBH6BXUh5+AQe5wqEQCfGzfqch4Y6V8KFyfKGx8RRZ563+2FeeR3 PzfU6/tp2aGgHDG5DgjIhXs596OpiJL8cQ5WP2ShLt2DqZSHJ4vjSluqTYPfFe2HzE boNJ9nNgWTpPKwZtv4uW91uq9IZqDMt3aR1boxop6eAiDdHHqO5Vl6NyteWB5oLmOU uMBhCEm6CwZJ7veJCaC2/WK+dnRDlIivv2mslfMJGmiKNqDXZbHn3AO2S2j+3TTkZ5 Mnn4Wy36I7n0GDiuVfGHZ3sjReqUAmn5InfYmASwpDJhrKez/pLpIgc5N+Azvm3vE7 azQD4EY4QxQXw== Received: by mail-lf1-f48.google.com with SMTP id 2adb3069b0e04-515a68d45faso466210e87.3 for ; Wed, 27 Mar 2024 23:54:52 -0700 (PDT) X-Forwarded-Encrypted: i=1; AJvYcCXLBoO0Xd1DAyRGMcXvrLXQggbh1bQdRfef2QW+63WgLeZ2Vqc0Nc1wGgthRn1XQu3VtYPcIGjtg1KIfOiJn7EtDZm8fLPbXMhg61+G X-Gm-Message-State: AOJu0YzBhAkBy55EU0gstmQZFy4xC9KYRUYm995AD2FwWSzCMiE/EhV0 mbEXrBqWGrbzFMvjW/zEQHoZLp20zKiOXgbDUlZJzGd+qPFVMmSerXSGjh4VlZBpsKtFHWLkSfo zHh9wjefo46tbTuwQpLKgBc04hdI= X-Google-Smtp-Source: AGHT+IFPWibTjQ7HYu9iMUozZrafRkHq4t3zHzqCt37IN1tmUn5DaSR7BVPB0CqMAFji6pRrgEjVM4+j2oJ5rcVjNmA= X-Received: by 2002:ac2:48a4:0:b0:515:a223:770c with SMTP id u4-20020ac248a4000000b00515a223770cmr902815lfg.35.1711608890760; Wed, 27 Mar 2024 23:54:50 -0700 (PDT) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 References: <202403221630.2692c998-oliver.sang@intel.com> <20240324142532.GAZgA33M_u1lW_E_1n@fat_crate.local> In-Reply-To: From: Ard Biesheuvel Date: Thu, 28 Mar 2024 08:54:38 +0200 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [linus:master] [x86/sme] 48204aba80: BUG:kernel_failed_in_early-boot_stage,last_printk:Booting_the_kernel(entry_offset:#) To: Oliver Sang Cc: Borislav Petkov , oe-lkp@lists.linux.dev, lkp@intel.com, linux-kernel@vger.kernel.org, Tom Lendacky Content-Type: text/plain; charset="UTF-8" On Thu, 28 Mar 2024 at 07:57, Oliver Sang wrote: > ... > regarding this early-boot failure issue, by more tests, we double it may > relate with 3 configs. as we shared in [1], they are set as below when the > kernel run into early-boot failure: > > # CONFIG_INIT_STACK_NONE is not set > CONFIG_INIT_STACK_ALL_ZERO=y > CONFIG_GCC_PLUGIN_STACKLEAK=y > > > the early-boot failure issue will _disappear_ by making either one of two > changes: > > (1) > CONFIG_CC_HAS_AUTO_VAR_INIT_ZERO=y > -# CONFIG_INIT_STACK_NONE is not set > +CONFIG_INIT_STACK_NONE=y > # CONFIG_INIT_STACK_ALL_PATTERN is not set > -CONFIG_INIT_STACK_ALL_ZERO=y > +# CONFIG_INIT_STACK_ALL_ZERO is not set > CONFIG_GCC_PLUGIN_STACKLEAK=y > > > (2) > CONFIG_INIT_STACK_ALL_ZERO=y > -CONFIG_GCC_PLUGIN_STACKLEAK=y > -# CONFIG_GCC_PLUGIN_STACKLEAK_VERBOSE is not set > -CONFIG_STACKLEAK_TRACK_MIN_SIZE=100 > -# CONFIG_STACKLEAK_METRICS is not set > -# CONFIG_STACKLEAK_RUNTIME_DISABLE is not set > +# CONFIG_GCC_PLUGIN_STACKLEAK is not set > CONFIG_INIT_ON_ALLOC_DEFAULT_ON=y > Thanks, this was very useful in narrowing it down. I sent out a fix for the stackleak plugin.