From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752179AbaHDJod (ORCPT ); Mon, 4 Aug 2014 05:44:33 -0400 Received: from smtprelay.restena.lu ([158.64.1.62]:34042 "EHLO smptrelay.restena.lu" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751409AbaHDJob (ORCPT ); Mon, 4 Aug 2014 05:44:31 -0400 X-Greylist: delayed 590 seconds by postgrey-1.27 at vger.kernel.org; Mon, 04 Aug 2014 05:44:30 EDT Date: Mon, 4 Aug 2014 11:34:35 +0200 From: Bruno =?UTF-8?B?UHLDqW1vbnQ=?= To: P J P Cc: Andrew Morton , linux-kernel@vger.kernel.org, linux-efi@vger.kernel.org, Matt Fleming Subject: 3.12 to 3.13 boot regression bisected - still applies to 3.16 Message-ID: <20140804113435.34ed8c76@pluto> X-Mailer: Claws Mail 3.9.0 (GTK+ 2.24.24; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, Since 3.13 kernels with built-in initrd fail to boot on Fujitsu hardware in EFI mode (efi stub) though the exact same kernel binary does boot in BIOS mode (grub). Interestingly EFI kernels with different config do boot under VMWare. Your patch "initramfs: read CONFIG_RD_ variables for initramfs compression" is the trigger. Is something missing in EFI stub or why do things behave differently? Looking at compiled kernel with and without this patch the resulting bzImage is similar in size but in build directory I get: Vanilla 3.13, CONFIG_INITRAMFS_COMPRESSION_NONE=y: -rw-r--r-- 1 kbuild kbuild 399 Aug 4 10:26 usr/built-in.mod.c -rw-r--r-- 1 kbuild kbuild 7062309 Aug 4 10:26 usr/built-in.o -rwxr-xr-x 1 kbuild kbuild 22670 Aug 4 10:26 usr/gen_init_cpio -rw-r--r-- 1 kbuild kbuild 7061260 Aug 4 10:26 usr/initramfs_data.cpio.gz -rw-r--r-- 1 kbuild kbuild 7062240 Aug 4 10:26 usr/initramfs_data.o -rw-r--r-- 1 kbuild kbuild 0 Aug 4 10:26 usr/modules.builtin -rw-r--r-- 1 kbuild kbuild 0 Aug 4 10:26 usr/modules.order Does not boot, reboots after exiting EFI stub Vanilla 3.13, CONFIG_INITRAMFS_COMPRESSION_GZIP=y: -rw-r--r-- 1 kbuild kbuild 399 Aug 4 10:26 usr/built-in.mod.c -rw-r--r-- 1 kbuild kbuild 7062309 Aug 4 10:26 usr/built-in.o -rwxr-xr-x 1 kbuild kbuild 22670 Aug 4 10:26 usr/gen_init_cpio -rw-r--r-- 1 kbuild kbuild 7061260 Aug 4 10:26 usr/initramfs_data.cpio.gz -rw-r--r-- 1 kbuild kbuild 7062240 Aug 4 10:26 usr/initramfs_data.o -rw-r--r-- 1 kbuild kbuild 0 Aug 4 10:37 usr/modules.builtin -rw-r--r-- 1 kbuild kbuild 0 Aug 4 10:37 usr/modules.order Does not boot, reboots after exiting EFI stub 3.13 with patch revered, CONFIG_INITRAMFS_COMPRESSION_NONE=y: -rw-r--r-- 1 kbuild kbuild 399 Aug 4 10:16 usr/built-in.mod.c -rw-r--r-- 1 kbuild kbuild 16931869 Aug 4 10:16 usr/built-in.o -rwxr-xr-x 1 kbuild kbuild 22670 Aug 4 10:16 usr/gen_init_cpio -rw-r--r-- 1 kbuild kbuild 16930816 Aug 4 10:16 usr/initramfs_data.cpio -rw-r--r-- 1 kbuild kbuild 16931800 Aug 4 10:16 usr/initramfs_data.o -rw-r--r-- 1 kbuild kbuild 0 Aug 4 10:16 usr/modules.builtin -rw-r--r-- 1 kbuild kbuild 0 Aug 4 10:16 usr/modules.order Boots successfully. Related config options: CONFIG_RD_GZIP=y CONFIG_RD_BZIP2=y CONFIG_RD_LZMA=y CONFIG_RD_XZ=y CONFIG_RD_LZO=y CONFIG_RD_LZ4=y CONFIG_INITRAMFS_SOURCE="/usr/src/initrd64-20131127.cpio" CONFIG_INITRAMFS_ROOT_UID=0 CONFIG_INITRAMFS_ROOT_GID=0 CONFIG_INITRAMFS_COMPRESSION_NONE=y # CONFIG_INITRAMFS_COMPRESSION_GZIP is not set # CONFIG_INITRAMFS_COMPRESSION_BZIP2 is not set # CONFIG_INITRAMFS_COMPRESSION_LZMA is not set # CONFIG_INITRAMFS_COMPRESSION_XZ is not set # CONFIG_INITRAMFS_COMPRESSION_LZO is not set Bruno