Hello Otto,
Am 22.05.2018 um 08:24 schrieb Richard Weinberger:
Otto,
Am Dienstag, 22. Mai 2018, 03:30:04 CEST schrieb Otto Blom:
Hi Richard !
To summarize the observations from the last few days.
* Linux 4.9 & U-boot 2018 behave the same when attempting to read from
a ubifs file system
* Whenever Linux 4.14 writes to a ubifs there is some form of
incompatibility introduced
causing assorted errors when the file system is read in Linux 4.9 or
U-boot. However
the files can still be read in Linux 4.14.
This lead me to suspect a problem with the OOB data. So I copied over
a 16MB textfile to
a freshly minted no-compression ubifs partition (running 4.14) and ran
a nanddump both from
Linux 4.9 and 4.14 and the contents are different - Bit errors are
present in the 4.9-dump..
This smells like a problem on MTD/NAND-Level.
Decompression might fail because bits changes but didn't get fixed by your
driver.
+1 from my side ...
bye,
Heiko
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