Re: PUFFS and existing file that get ENOENT

[yamt%mwd.biglobe.ne.jp@localhost (YAMAMOTO Takashi)]

hi,

> Emmanuel Dreyfus <manu%netbsd.org@localhost> wrote:
> 
>> Hence I come to the conclusion that it may come from
>> sys/kern/vfs_lookup.c, but it is very unlikely that there is a bug there
>> that went unnoticed for other filesystems.
> 
> Further investigation shows that this ENOENT is returned by vget() call
> in puffs_cookie2vnode(). That suggests some kind of race condition, but
> that is not obvious. It means a vnode has been created on a lookup, then
> it gets recycled while looking up one of its child.

it should retry from puffs_cookie2pnode in that case.

YAMAMOTO Takashi

> 
> -- 
> Emmanuel Dreyfus
> http://hcpnet.free.fr/pubz
> manu%netbsd.org@localhost