Using NOR dataflash with jffs2 [SOLVED]

kolotsey · **Joined:** Tue Nov 27, 2007 10:30 pm **Posts:** 3

Hi!
I have a problem when trying to read newly created files from dataflash.

My jffs2 filesystem divided into partitions and mounts whithout any error.
I can read any existing file from mounted filesystem without problems.
But when I try to write a file to dataflash, I get this error:

Code:

cp /bin/busybox /mnt/jffs/busybox
Node totlen on flash (0xffffffff)! = Totlen from node ref (0x00000044)
Node totlen on flash (0xffffffff)! = Totlen from node ref (0x0000000c)
Node totlen on flash (0xffffffff)! = Totlen from node ref (0x0000000c)
Node CRC ffffffff! = Calculated CRC f09e7845 for node at 004d0dfc

Then when I try to read this (created by me) file, I get IO error:

Code:

cat / mnt / jffs / busybox> / dev / null
Node CRC ffffffff! = Calculated CRC f09e7845 for node at 004d1334
Node CRC ffffffff! = Calculated CRC f09e7845 for node at 004d1334
cat: read error: Input / output error

So, I could read existing files from jffs, but I could't create and read new files.
I look for a solution of this problem in this forum and in the Internet, but did not find it.
I tried to use another dataflash, but it does not help.

My system configuration:
AT91RM9200,
linux 2.6.23

Code:

cat /proc/mtd
dev:    size   erasesize  name
mtd0: 00260000 00010000 "images"
mtd1: 005a0000 00010000 "jffs"

Code:

mount |grep jffs
/dev/mtdblock1 on /mnt/jffs type jffs2 (rw)

Thanks in advance

kolotsey · **Joined:** Tue Nov 27, 2007 10:30 pm **Posts:** 3

And I discover that this error always occurs when I tries to create files larger than 4096 bytes. Smaller files are reads and writes without errors.

Code:

#ret=`cat /mnt/jffs/1`; echo -n $ret>>/mnt/jffs/1; ls -l /mnt/jffs/1; cat /mnt/jffs/1>/dev/null
-rw-r--r--    1 root     root            4 Jan  1 00:14 /mnt/jffs/1

...

# ret=`cat /mnt/jffs/1`; echo -n $ret>>/mnt/jffs/1; ls -l /mnt/jffs/1; cat /mnt/jffs/1>/dev/null
-rw-r--r--    1 root     root         2048 Jan  1 00:15 /mnt/jffs/1
# ret=`cat /mnt/jffs/1`; echo -n $ret>>/mnt/jffs/1; ls -l /mnt/jffs/1; cat /mnt/jffs/1>/dev/null
Node totlen on flash (0xffffffff) != totlen from node ref (0x00000048)
Node totlen on flash (0xffffffff) != totlen from node ref (0x00000048)
Node totlen on flash (0xffffffff) != totlen from node ref (0x00000048)
Node totlen on flash (0xffffffff) != totlen from node ref (0x00000048)
Node totlen on flash (0xffffffff) != totlen from node ref (0x00000058)
Node totlen on flash (0xffffffff) != totlen from node ref (0x00000058)
Node totlen on flash (0xffffffff) != totlen from node ref (0x00000058)
Node totlen on flash (0xffffffff) != totlen from node ref (0x00000058)
Node totlen on flash (0xffffffff) != totlen from node ref (0x0000005c)
Node totlen on flash (0xffffffff) != totlen from node ref (0x00000060)
Node totlen on flash (0xffffffff) != totlen from node ref (0x00000060)
-rw-r--r--    1 root     root         4096 Jan  1 00:15 /mnt/jffs/1
Node CRC ffffffff != calculated CRC f09e7845 for node at 0026122c
Node CRC ffffffff != calculated CRC f09e7845 for node at 0026122c
cat: read error: Input/output error

kolotsey · **Joined:** Tue Nov 27, 2007 10:30 pm **Posts:** 3

Solution is here:
http://lists.infradead.org/pipermail/li ... 18195.html
http://lists.infradead.org/pipermail/li ... 18196.html

Thanks for your replies

Using NOR dataflash with jffs2 [SOLVED]

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