Messages in this thread | | | Subject | Re: [PATCH] Freeze bdevs when freezing processes. | From | Nigel Cunningham <> | Date | Wed, 25 Oct 2006 08:17:11 +1000 |
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Hi.
On Tue, 2006-10-24 at 22:16 +0200, Rafael J. Wysocki wrote: > On Monday, 23 October 2006 06:12, Nigel Cunningham wrote: > > XFS can continue to submit I/O from a timer routine, even after > > freezeable kernel and userspace threads are frozen. This doesn't seem to > > be an issue for current swsusp code, but is definitely an issue for > > Suspend2, where the pages being written could be overwritten by > > Suspend2's atomic copy. > > > > We can address this issue by freezing bdevs after stopping userspace > > threads, and thawing them prior to thawing userspace. > > Okay, it turns out we'll probably need this, so a couple of comments follow.
Ack. Revised version will come when I find/make the time to do it :) Feel free to prod :>
Nigel
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