CRC problems with JFFS2

    From time to time, when starting up from poweroff (deep standby) I see these messages appearing :



    JFFS2 notice: (27) check_node_data: wrong data CRC in data node at 0x00645000: read 0xd608c0ba, calculated 0xda5f595a


    The result is that enigma2 somethimes does not start properly (tuner config not correct or somethimes or bus error when starting enigma binary)


    After a warm reboot, the messages are gone. they only appear in first boot from a coldstart. Is this a software or hardware error causing this?


    Any idea what could cause this problem?

    already tried to flash the image/firmware again, using DREAMUP and the "Repair Bad Sector" Option? It sometimes can happen that a sector in the Nand flash goes bad ... if you flash with DREAMUP the bad sector will get marked as BAD again and never get used anymore.


    Anyway, I saw that message on my box already too a few times already. But never had any problems :winking_face:

    Theorie ist, wenn man alles weiß, aber nichts funktioniert.
    Praxis ist, wenn alles funktioniert aber niemand weiß warum.

    Thanks for your tip. I'll try it out.



    I also saw this message in dmesg :


    Bad eraseblock 719 at 0x059e0000
    Bad eraseblock 1693 at 0x0d3a0000
    Creating 7 MTD partitions on "NAND 256MiB 3,3V 8-bit":
    0x0000000000000000-0x0000000010000000 : "complete"
    0x0000000000000000-0x0000000000100000 : "loader"
    0x0000000000100000-0x0000000000400000 : "boot partition"
    0x0000000000400000-0x0000000004000000 : "root partition"
    0x0000000004000000-0x0000000008000000 : "home partition"
    0x0000000008000000-0x000000000f800000 : "unused partition"
    0x000000000f800000-0x0000000010000000 : "preset partition"


    The bad reaseblock is in the root partition. could it be related?


    (nand is allowed to have bad eraseblocks at shipping. so for the moment I do not think a return for repair is needed.)



    Is this forum also followed up by dream multimedia technicians itself?