Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754037Ab0H2Whw (ORCPT ); Sun, 29 Aug 2010 18:37:52 -0400 Received: from rcsinet10.oracle.com ([148.87.113.121]:45927 "EHLO rcsinet10.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753588Ab0H2Whv (ORCPT ); Sun, 29 Aug 2010 18:37:51 -0400 Message-ID: <4C7AE0FF.6040104@kernel.org> Date: Sun, 29 Aug 2010 15:36:47 -0700 From: Yinghai Lu User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.11) Gecko/20100714 SUSE/3.0.6 Thunderbird/3.0.6 MIME-Version: 1.0 To: Torsten Kaiser CC: Linus Torvalds , "H. Peter Anvin" , Linux Kernel Mailing List Subject: Re: Linux 2.6.36-rc3 References: <4C7ADEBD.3070906@kernel.org> In-Reply-To: <4C7ADEBD.3070906@kernel.org> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3003 Lines: 70 On 08/29/2010 03:27 PM, Yinghai Lu wrote: > On 08/29/2010 12:24 PM, Torsten Kaiser wrote: >> On Sun, Aug 29, 2010 at 7:25 PM, Linus Torvalds >> wrote: >>> You all know the drill by now: another week, another -rc. >> >> I'm still seeing the regression from -rc1 that the start of the early >> serial output only contains garbage. >> >> I'm blaming commit 8fee13a48e4879fba57725f6d9513df4bfa8e9f3 (x86, >> setup: enable early console output from the decompressor), because if >> I'm disabling the new serial_putchar() in >> arch/x86/boot/compressed/misc.c by putting "return;" in its first >> line, the output returns to normal. >> >> Here the different outputs from the serial console: >> Start of output from 2.6.35: >> [ 0.000000] Linux version 2.6.35 (root@treogen) (gcc version 4.4.4 >> (Gentoo 4.4.4-r1 p1.0, pie-0.4.5) ) #1 SMP Mon Aug 2 19:54:57 CEST >> 2010 >> [ 0.000000] Command line: fastboot earlyprintk=serial,ttyS0,115200 >> console=ttyS0,115200 console=tty1 crypt_root=/dev/md3 radeon.modeset=1 >> video=1280x1024 >> [ 0.000000] BIOS-provided physical RAM map: >> [ 0.000000] BIOS-e820: 0000000000000000 - 000000000009fc00 (usable) >> [ 0.000000] BIOS-e820: 000000000009fc00 - 00000000000a0000 (reserved) >> [ 0.000000] BIOS-e820: 00000000000e4000 - 0000000000100000 (reserved) >> >> Start of output from 2.6.36-rc1..3: >> {binary garbage}00000000 - 000000000009fc00 (usable) >> [ 0.000000] BIOS-e820: 000000000009fc00 - 00000000000a0000 (reserved) >> [ 0.000000] BIOS-e820: 00000000000e4000 - 0000000000100000 (reserved) >> >> Start of output with disabled serial_putchar(): >> [ 0.000000] Linux version 2.6.36-rc3 (root@treogen) (gcc version >> 4.4.4 (Gentoo 4.4.4-r1 p1.0, pie-0.4.5) ) #1 SMP Sun Aug 29 19:03:00 >> CEST 2010 >> [ 0.000000] Command line: fastboot earlyprintk=serial,ttyS0,115200 >> console=ttyS0,115200 console=tty1 crypt_root=/dev/md3 radeon.modeset=1 >> video=1280x1024 >> [ 0.000000] BIOS-provided physical RAM map: >> [ 0.000000] BIOS-e820: 0000000000000000 - 000000000009fc00 (usable) >> [ 0.000000] BIOS-e820: 000000000009fc00 - 00000000000a0000 (reserved) >> [ 0.000000] BIOS-e820: 00000000000e4000 - 0000000000100000 (reserved) >> >> I can't see anything wrong with this commit, but it looks to me, as if >> the newly added decompressor output gets corrupted somewhere. Could it >> be my nondefault baud rate at 115200? >> > > please check if following work... sorry. should be debug fastboot console=tty1 console=uart8250,io,0x3f8,115200 crypt_root=/dev/md3 radeon.modeset=1 video=1280x1024 and fastboot console=tty1 console=uart8250,io,0x3f8,115200 crypt_root=/dev/md3 radeon.modeset=1 video=1280x1024 Thanks Yinghai Lu -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/