Re: Fix SWSUSP & !SWAP

Andrew Morton
2003-04-24T09:12:07Z

Pavel Machek <pavel@ucw.cz> wrote:
>
> No, ext3 will be "unclean" during resume (you can't really unmount it
> during suspend!) and r-o mounting of ext3 will replay journal and
> cause data corruption.

Sorry, I still don't get it. Go through the steps for me:

1) suspend writes pages to disk

2) machine is shutdown

3) restart, journal replay

4) resume reads pages from disk.

Where did the corruption happen?

Please bear in mind that I don't really know how swsusp works, so tell it to
me in nice simple steps.