This is the mail archive of the ecos-discuss@sources.redhat.com mailing list for the eCos project.

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]
Other format:	[Raw text]

Re: Another problem with JFFS2

From: Jonathan Larmour <jifl at eCosCentric dot com>
To: knud at festus dot hrz dot uni-oldenburg dot de
Cc: ecos-discuss at sources dot redhat dot com
Date: Wed, 16 Jul 2003 02:09:02 +0100
Subject: Re: [ECOS] Another problem with JFFS2
References: <3F12FA9B.7080601@festus.hrz.uni-oldenburg.de> <20030715102705.6ec402f5.jani@iv.ro>

Jani Monoses wrote:

...

I found that the JFFS2 filesystem writes wrong erased block markers to the flash. I think it is a compiler problem in erase.c. The values (JFFS2_MAGIC_BITMASK, JFFS2_NODETYPE_CLEANMARKER,..) will not be copied to the marker structure. In the assembly you can see that the marker structure starts at fp-54 but the magic bitmask will be written to fp-68.

I use the gcc 3.2.2 ( xscale platform).

If you think it's a compiler problem have you tried 3.3 ? 3.2.2 is known to miscompile at least the arm linux kernel...

Also there's the linux-mtd list where JFFS2 is discussed, and someone's more likely to have come across this there. http://www.linux-mtd.infradead.org/

Jifl
--
eCosCentric    http://www.eCosCentric.com/    The eCos and RedBoot experts
--[ "You can complain because roses have thorns, or you ]--
--[  can rejoice because thorns have roses." -Lincoln   ]-- Opinions==mine


--
Before posting, please read the FAQ: http://sources.redhat.com/fom/ecos
and search the list archive: http://sources.redhat.com/ml/ecos-discuss

References:
- Another problem with JFFS2
  - From: Knud Wöhler
- Re: Another problem with JFFS2
  - From: Jani Monoses

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]