Re: [linux-lvm] 2.6.22-rc4 XFS fails after hibernate/resume

["Rafael J. Wysocki" <rjw@xxxxxxx>]

On Wednesday, 27 June 2007 22:49, Pavel Machek wrote:
> Hi!
> 
> > FWIW, I'm on record stating that "sync" is not sufficient to quiesce an XFS
> > filesystem for a suspend/resume to work safely and have argued that the only
> 
> Hmm, so XFS writes to disk even when its threads are frozen?
> 
> > safe thing to do is freeze the filesystem before suspend and thaw it after
> > resume. This is why I originally asked you to test that with the other 
> > problem
> 
> Could you add that to the XFS threads if it is really required? They
> do know that they are being frozen for suspend.

Well, do you remember the workqueues?  They are still nonfreezable.

Greetings,
Rafael


-- 
"Premature optimization is the root of all evil." - Donald Knuth