linux-kernel - Re: 2.6.18-rc4 jffs2 problems

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Message-Id: <20060807234010.f9a281ed.akpm@osdl.org>
Date:	Mon, 7 Aug 2006 23:40:10 -0700
From:	Andrew Morton <akpm@...l.org>
To:	Richard Purdie <rpurdie@...ys.net>
Cc:	linux-mtd <linux-mtd@...ts.infradead.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: 2.6.18-rc4 jffs2 problems

On Mon, 07 Aug 2006 19:41:50 +0100
Richard Purdie <rpurdie@...ys.net> wrote:

> I previous reported problems with jffs2 on the Zaurus. I tested
> 2.6.18-rc4 and nothing has changed - I see the following when booting,
> both with filesystems that work with 2.6.17 and freshly reflashed
> systems:
> 
> Linux version 2.6.18-rc4-.dev-snapshot-20060807 (richard@tim) (gcc version 3.4.3) #1 PREEMPT Mon Aug 7 17:47:07 BST 2006
> CPU: XScale-PXA250 [69052904] revision 4 (ARMv5TE), cr=0000397f
> Machine: SHARP Poodle
> [...]
> Sharp SL series flash device: 800000 at 0
> Using static partision definition
> Creating 1 MTD partitions on "sharpsl-flash":
> 0x00120000-0x007f0000 : "Boot PROM Filesystem"
> NAND device: Manufacturer ID: 0x98, Chip ID: 0x76 (Toshiba NAND 64MiB 3,3V 8-bit)
> Scanning device for bad blocks
> Creating 3 MTD partitions on "sharpsl-nand":
> 0x00000000-0x00700000 : "System Area"
> 0x00700000-0x01d00000 : "Root Filesystem"
> 0x01d00000-0x04000000 : "Home Filesystem"
> [...]
> Empty flash at 0x0054bc5c ends at 0x0054be00
> VFS: Mounted root (jffs2 filesystem) readonly.
> Freeing init memory: 100K
> JFFS2 error: (472) jffs2_get_inode_nodes: short read at 0x074e84: 68 instead of 380.
> JFFS2 error: (472) jffs2_do_read_inode_internal: cannot read nodes for ino 153, returned error is -5
> 
> The empty flash warning is probably due to a slightly corrupted image
> due to a reboot. The last two messages appear on freshly flashed images
> on both this and other Zaurus devices (all using nand/sharpsl.c).
> 
> Experience shows I can lock the device up with filesystem corruption if
> I use the device :-(.
> 
> Does anyone know what the problem is or have an idea of where I should
> start debugging this?
> 

Nope, but please be sure to take a block-level copy of the filesystem so
that you and others can reproduce the problem.

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