On Tue, Mar 9, 2010 at 10:36 AM,  <[email protected]> wrote:
>
> Joonwoo Park:
>> > Here is my test script. What is the difference?
>> >
>> > sudo mount -o remount,udba=3Dnone .
>>
>> This was the difference.  Interesting.
>> I've mounted aufs with udba option so I didn't need to remount.
>> However if I remount after mount, opening file operation works.
>>
>> # mount | egrep 'aufs|ubifs'
>> ubi0:commonrw on /realroot/rw type ubifs (rw,relatime)
>> none on /mnt type aufs (rw,relatime,si=3D64e40203,udba=3Dnone)
>> # ls -al /mnt/file
>> -rw-r--r--    0 root     root         10240 Jan  4 19:02 /mnt/file
>> # wc -l /mnt/file
>> wc: /mnt/file: No such file or directory
>> # mount -o remount,udba=3Dnone /mnt
>> # wc -l /mnt/file
>>         0 /mnt/file
>
> That is really really strange and I could not reproduce the problem.
> I thought it might be related to some other fixes after 20090803 because
> it is so old, but I could not find any related fix.

Indeed.  I couldn't imagine you are not able to reproduce.  Strange.

>
> If you don't mind, I'd postpone diving into this problem.
> Also I'd ask you to upgrade your aufs version.
>

I see.  I'll upgrade aufs version and try again soon and let you know
how it goes.
Thanks a lot for all your effort for this problem.

Thanks!
Joonwoo

>
> J. R. Okajima
>

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