From: Yinghai Lu <yinghai@kernel.org>
To: Torsten Kaiser <just.for.lkml@googlemail.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
"H. Peter Anvin" <hpa@zytor.com>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: Linux 2.6.36-rc3
Date: Sun, 29 Aug 2010 15:36:47 -0700 [thread overview]
Message-ID: <4C7AE0FF.6040104@kernel.org> (raw)
In-Reply-To: <4C7ADEBD.3070906@kernel.org>
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
>> <torvalds@linux-foundation.org> 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
next prev parent reply other threads:[~2010-08-29 22:37 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-08-29 17:25 Linux 2.6.36-rc3 Linus Torvalds
2010-08-29 19:24 ` Chris Ball
2010-08-29 19:24 ` Torsten Kaiser
2010-08-29 22:27 ` Yinghai Lu
2010-08-29 22:36 ` Yinghai Lu [this message]
2010-08-29 22:53 ` Yinghai Lu
2010-08-30 4:50 ` Torsten Kaiser
2010-08-30 1:12 ` [PATCH] x86, setup: fix earlyprintk=serial,ttyS0,115200 Yinghai Lu
2010-08-30 1:13 ` [PATCH] x86, setup: fix earlyprintk=serial,0x3f8,115200 Yinghai Lu
2010-09-08 21:28 ` H. Peter Anvin
2010-09-09 7:23 ` Yinghai Lu
2010-09-21 19:58 ` [tip:x86/urgent] x86, setup: Fix earlyprintk=serial,0x3f8,115200 tip-bot for Yinghai Lu
2010-09-21 19:58 ` [tip:x86/urgent] x86, setup: Fix earlyprintk=serial,ttyS0,115200 tip-bot for Yinghai Lu
2010-09-22 15:12 ` Early console confusion Bjorn Helgaas
2010-09-22 15:56 ` H. Peter Anvin
2010-09-22 16:44 ` Bjorn Helgaas
2010-09-22 16:53 ` H. Peter Anvin
2010-09-22 18:21 ` Bjorn Helgaas
2010-09-22 18:26 ` H. Peter Anvin
2010-08-29 22:40 ` Linux 2.6.36-rc3 Jean-Denis Girard
2010-08-30 5:23 ` Borislav Petkov
2010-08-30 8:00 ` Jean-Denis Girard
2010-08-30 8:47 ` Miguel Calleja
2010-08-30 17:00 ` Suresh Jayaraman
2010-08-30 17:00 ` Suresh Jayaraman
[not found] ` <4C7BE3AE.8020204-l3A5Bk7waGM@public.gmane.org>
2010-08-30 17:14 ` Shirish Pargaonkar
2010-08-30 17:14 ` Shirish Pargaonkar
2010-08-30 17:25 ` Randy Dunlap
[not found] ` <20100830102527.17d5e1f1.randy.dunlap-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
2010-08-30 21:27 ` Steve French
2010-08-30 21:27 ` Steve French
2010-08-30 19:28 ` Piotr Hosowicz
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