> Hi.
>
> Stefan Seyfried wrote:
> > On Fri, 16 Oct 2009 01:54:10 -0700 (PDT)
> > Nick Davies wrote:
> >
> >> Dear all,
> >>
> >> I am trying to debug the suspend/hibernate on Wubi(The Ubuntu
> >> installer for Windows) these day. Since Ubuntu sits on top of NTFS
> >> partition with the help of ntfs-3g via FUSE, I think it should not
> >> pass the file system freezing stage, but in fact, the suspend works
> >> well on my machine. So I am curious that how can they achieve that?
> >> Just keep the FUSE alive to the end of the suspend? Any ideas are
> >> welcome.
> >
> > (Disclaimer: all below is AFAIK and it might be slightly wrong)
> > On swapon(), a block map of the file / partition is made by the kernel
> > and later I/O to the swap area are not going through the filesystem
> > layer. So FUSE is not involved in the suspend process at the stage of
> > image writing.
>
> It's exactly right.
Hi,
Thanks for all your quick response. That is to say, the suspend itself has no conflict with the FUSE when do the freezing?
To Nigel,
I've tried the TuxOnIce project, unfortunately I can't do suspend now. According to the dmesg log, it hangs at the freezing file system.
I check some codes of your patch. You've patched freeze_filesystems() to the fs/buffer.c file, so I guess there may be something wrong with the freeze order in that subroutine with my situation(OS sits on top of NTFS using ntfs-3g via FUSE). How your opinions?
Best regards,
Nick
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