mkfs.jffs2 buggy?

[Holger Schurig]

> > 0x6574
>
> 'At'
>
> > 0x665f
>
> 'b_'
>
> > 0x6873
>
> 'hs'
>
> > 0x3030
>
> '00'
>
> > 0x3030
>
> '00'
>
> Hmm, is that interesting or merely a coincidence?

I think this is a conincidence.


From my flash-tester I had in every sector a text like this:

bdi>mdb 0x00a00000
00a00000 : 74 65 73 74 5f 66 6c 61  test_fla
00a00008 : 73 68 3a 20 30 30 61 30  sh: 00a0
00a00010 : 30 30 30 30 ff ff ff ff  0000....
00a00018 : ff ff ff ff ff ff ff ff  ........

bdi>mdb 0x00a00000
00a40000 : 74 65 73 74 5f 66 6c 61  test_fla
00a40008 : 73 68 3a 20 30 30 61 34  sh: 00a4
00a40010 : 30 30 30 30 ff ff ff ff  0000....
00a40018 : ff ff ff ff ff ff ff ff  ........


I used this to make sure that each sector get's address indeed, and that no 
overwrapping happens, e.g. by bad soldered address lines.

However, the found characters can't be from those sectors, so it looks very 
much like a conincidence. My memory area looks, in the flash, currently like 
this:

          00000 40000 80000 c0000
00000000:  used  used  used  used
00100000:  test  jffs  jffs  jffs
00200000:  jffs  jffs  jffs  jffs
00300000:  jffs  jffs  jffs  jffs
00400000:  jffs  jffs  jffs  jffs
00500000:  jffs  jffs  jffs  jffs
00600000:  jffs  jffs  jffs  jffs
00700000:  jffs  jffs  jffs  jffs
00800000:  jffs  jffs  jffs  jffs
00900000:  jffs  jffs  jffs  test
00a00000:  test  test  test  test
00b00000:  test  test  test  test
00c00000:  test  test  test  test
00d00000:  test  test  test  test
00e00000:  test  test  test  test
00f00000:  test  test  test  test
01000000:  test  test  test  test
01100000:  test  test  test  test
01200000:  test  test  test  test
01300000:  test  test  test  test
01400000:  test  test  test  test
01500000:  test  test  test  test
01600000:  test  test  test  test
01700000:  test  test  test  test
01800000:  test  test  test  test
01900000:  test  test  test  test
01a00000:  test  test  test  test
01b00000:  test  test  test  test
01c00000:  test  test  test  test
01d00000:  test  test  test  test
01e00000:  test  test  test  test
01f00000:  test  test  test  test

test:  means that a valid test mark like above has been found
jffs:  means that in the first byte I found 0x85 and in the second 0x19
free:  the whole page contained \xFF
used:  the page contained other stuff