DiskOnChip & JFFS1/2

DiskOnChip & JFFS1/2

[Carl Przybylek]

Im trying to setup a JFFS1/2 filesytem on the 48MB DiskOnChip.  Seems
Ive run into a few problems that I cant find  answers to.

1).  If I download the the latest cvs source of the mtd and patch it in
with the 2.4.19 kernel the jffs2 support will not compile.  background.c
tells me that recalc_sigpending passed 1 argument but takes 0.  JFFS2
support compiles fine from the unpatched source.

2).  Using the support from the 2.4.19 kernel I got the kernel to
reconize the diskonchip but I get the following error when trying to
create a JFFS2 filesystem:
ECC needs a full sector write ( addr 400 size 4c ).
What the heck does that mean?  I cant find much expect a message post
saying disk on chip does not support jffs filesystems.

Any help would be greatly appreciated.
Carl Przybylek

Re: DiskOnChip & JFFS1/2

[David Woodhouse]

carlp@bioace.net said:
>  1).  If I download the the latest cvs source of the mtd and patch it
> in with the 2.4.19 kernel the jffs2 support will not compile.
> background.c tells me that recalc_sigpending passed 1 argument but
> takes 0.  JFFS2 support compiles fine from the unpatched source.

Get include/linux/mtd/compatmac.h too.

> 2).  Using the support from the 2.4.19 kernel I got the kernel to
> reconize the diskonchip but I get the following error when trying to
> create a JFFS2 filesystem: ECC needs a full sector write ( addr 400
> size 4c ). What the heck does that mean?  I cant find much expect a
> message post saying disk on chip does not support jffs filesystems. 

You need the latest CVS code and it should mostly work. 

--
dwmw2

Re: DiskOnChip & JFFS1/2

[Carl Przybylek]

seems the jffs2 directory was left out of the patchin.sh file
if you run into this just add
ln -sf $TOPDIR/fs/jffs2/*.[ch] fs/jffs2
ln -sf $TOPDIR/fs/jffs2/*akefile fs/jffs2
ln -sf $TOPDIR/include/linux/jffs2*.h include/linux

to the file to fix it.
Thanks for the help
Carl Przybylek


David Woodhouse wrote:

> sunil.r.atri@intel.com said:
> >  Why does the compatmac.h redefine recalc_sigpending if background.c
> > just calls it as is
>
> > //background.c
> > recalc_sigpending(current);
>
> It doesn't. You're looking at an old version of background.c.
>
> --
> dwmw2