[U-Boot] UBI and UBIFS on ARM64

[Heiko Schocher]

Hello Adam,

Am 07.09.2016 um 06:39 schrieb Heiko Schocher:
> Hello Adam,
>
> Am 06.09.2016 um 16:44 schrieb Adam Oleksy:
>> Dear U-Boot community,
>> I'm developing software for Xilinx ZynqMP platform, which is made in
>> 64-bit architecture. I would like to store every artifact needed to
>> boot up on the UBIFS partition. I faced problem, that u-boot does not
>> want to compile with enabled UBI/UBIFS support, due to lack of some
>> atomic operations on longs. So, I've written them (see
>> http://pastebin.com/ibp0Zt99). Please note, that I've written only
>> that functions, which are needed by UBI/UBIFS. Then UBIFS started work
>> on the target. Almost... because I've found that large files (~20MiB)
>> can't be read. I've enabled debug messages, but I don't know how to
>> interpret them (please see http://pastebin.com/gByDcdvw). Maybe you
>> are able to help me?
>> I've also checked how the UBIFS behaves in the Linux, and the result
>> is that everything works as expected. It means that I can write large
>> files to UBIFS, and read them back successfully.
>> Should you need any further information, please do not hesitate to contact me.
>
> Hard to say ... here an extract of your debug log:
>
> UBI DBG io (pid 1): read 509 bytes from PEB 1059:10040
> UBIFS error (ubi0:0 pid 0): ubifs_check_node: bad magic 0x61018ce, expected 0x6101831
>
> Here begin your problem ... for some reasons you do not read the
> correct magic number ... I tend to say some problem with your nand
> driver and/or io functions, maybe cache setup? Sorry, more I cannot say ...

I am quite sure now:
bad magic 0x61018ce, expected 0x6101831
                  ^^                  ^^

0xce = !0x31

You have read problems ...

bye,
Heiko

> UBIFS error (ubi0:0 pid 0): ubifs_check_node: bad node at LEB 417:9912
> Not a node, first 24 bytes:UBIFS error (ubi0:0 pid 0): ubifs_read_node: expected node type 1
> UBIFS DBG tnc: key (67, data, 4679)
> UBIFS error (ubi0:0 pid 0): do_readpage: cannot read page 4679 of inode 67, error -117
> Error reading file 'rfsw-image_ramdisk.itb'
> UBI DBG gen (pid 1): close device 0, volume 0, mode 1
>
> bye,
> Heiko

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