linux-kernel - Re: [PATCH 2/2] [MTD] Call bdi_init() and bdi

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Message-ID: <20100427111759.GA13859@logfs.org>
Date:	Tue, 27 Apr 2010 13:17:59 +0200
From:	Jörn Engel <joern@...fs.org>
To:	Paolo Minazzi <paolo.minazzi@...il.com>
Cc:	Jens Axboe <jens.axboe@...cle.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	David Woodhouse <dwmw2@...radead.org>,
	linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org,
	Christoph Hellwig <hch@...radead.org>
Subject: Re: [PATCH 2/2] [MTD] Call bdi_init() and bdi_register()

On Tue, 27 April 2010 11:01:04 +0200, Paolo Minazzi wrote:
> 
> I have tried this patch.
> I have enabled LOGFS, but not mounted partition with it.
> /dev/mtdblock1 is my romfs root partition and it is OK.
> 
> The problem is that init cannot mount my /dev/mtdblock1 romfs root.
> 
> This is the fault :
> Platform: Cirrus Logic EDB9315A Board (ARM920T) Rev A
> Copyright (C) 2000, 2001, 2002, Red Hat, Inc.
>        |----------------------------------------------
> Raw file loaded 0x00080000-0x001dce6b, assumed entry at
> 0x00080000-----------------------------------------------------------
> RedBoot> exec -s 0x00b00000 -r 0x00a00000 -c "root=/dev/mtdblock1
> console=ttyAM console=tty1"--------------------------------
> ENTRY=0xc0008000-------------------------------------------------------------------------------------------------------------
> LENGTH=0x00300000------------------------------------------------------------------------------------------------------------
> BASE_ADDR=0x00080000---------------------------------------------------------------------------------------------------------
> Using base address 0x00080000 and length
> 0x00300000--------------------------------------------------------------------------
> Uncompressing Linux... done, booting the kernel.
> Linux version 2.6.34-rc5 (root@...kstar) (gcc version 3.4.3) #18 Tue
> Apr 27 10:55:55 CEST 2010
> CPU: ARM920T [41129200] revision 0 (ARMv4T), cr=c0007177
> CPU: VIVT data cache, VIVT instruction cache
> Machine: Cirrus Logic EDB9315A Evaluation Board
> Memory policy: ECC disabled, Data cache writeback
> Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 32512
> Kernel command line: root=/dev/mtdblock1 console=ttyAM console=tty1

If you add "rootfstype=romfs" to the command line, does the problem
still exist?

Jörn

-- 
And spam is a useful source of entropy for /dev/random too!
-- Jasmine Strong
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