On Friday 01 June 2012 00:32:04 Jon Schneider wrote:
> I integrated yaffs2-HEAD-d43e901 into our Marvelised 2.6.22-18 Linux
> kernel some months back and it's proved very well behaved indeed on a 4Gb
> NAND.
>
> But I've just done some experiments and found some rough edges and was
> wondering if these are known about.

I thought these were fixed. Perhaps things regressed.

I'll add a test case or two.


Thanks

Charles



>
> # Let's have 254 and 255 character filenames
>
> x255=`perl -e 'print "x"x255'`
> x254=`perl -e 'print "x"x254'`
>
> To cause trouble mkdir and rmdir $x254 and $x255 .
>
> ~ motherboard # mkdir $x255
>
> Once I was able to repeat this mkdir with no error and actually end up
> with two identically named directories.
>
> motherboard # rmdir $x255
> rmdir: failed to remove
> `xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
>xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
>xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
>xxxxxxxxxxxxxxxxxxxxxxxxxxxxx': Directory not empty
>
> Sometimes then doing
> motherboard # mkdir $x254
>
> mkdir: cannot create directory
> `xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
>xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
>xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
>xxxxxxxxxxxxxxxxxxxxxxxxxxxx': Cannot allocate memory
>
> motherboard # mkdir $x255
> mkdir: cannot create directory
> `xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
>xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
>xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
>xxxxxxxxxxxxxxxxxxxxxxxxxxxxx': File exists
>
> ls -l   output is interesting
>
> motherboard # ls -l
> ls: cannot access
> xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
>xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
>xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
>xxxxxxxxxxxxxxxxxxxxxxxxxxx: No such file or directory
> total 0
> d????????? ? ? ? ?            ?
> xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
>xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
>xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
>xxxxxxxxxxxxxxxxxxxxxxxxxxx
>
> I am pretty sure staying away from the limit will avoid any problem but
> there is still surely a bug.
>
> Jon
>
>
>
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