Re: overlayfs patches for ovl_copy_up & ovl_rename

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Jordi Pujol <jordipujolp@xxxxxxxxx> writes:

> A Dimecres 18 Maig 2011 10:42:53, Miklos Szeredi va escriure:
>>   Documentation/filesystems/directory-locking
>> 
>> for all the gory details.
>
> ok, i'll look this,
>
>> So, is there a minimal test case that I can try to replicate the bad
>> behavior?
>
> it's an occasional error, occurs when the system is occupied
> processing diverse tasks at the same time, for example when startpar
> is running in parallel the initialization of system daemons, this is
> detected because some changes done by the same daemon program are
> lost, (the case of consecutive sed instructions)

This file, which modifications are lost, is this on the upper
filesystem, the lower filesystem or both, before the modification?  And
after the modification?

>  or when doing a big
> upgrade of the system packages, some files are lost.

How are they lost?  They don't exist when they should?  What's the
contents of the upper and lower filesystems?

Thanks,
Miklos
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