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On Tuesday 14 November 2006 01:58, Stefan Seyfried wrote:
> On Mon, Nov 13, 2006 at 03:03:16PM -0700, Zan Lynx wrote:
> > I have not checked if this is true, but it is a possible explanation:
> >
> > Perhaps the filesystem is not properly unmounted during a suspend? That
>
> Of course not.
>
> > would mean GRUB is reading from a incoherent filesystem on resume.
>
> Exactly.
>
> > GRUB's filesystem drivers are not very fancy. It could be it does
> > something silly like check the journal before returning each block.
>
> GRUB must not write to the fs, so it probably plays back the journal in
> memory only and it does this for every file it reads (at least that's how
> it feels :-)
>
Ah, OK, that makes sense. I did not expect GRUB to be *that* sophisticated :)
> > Maybe its a journal size thing, you could try "sync" before suspend and
> > see if it helps.
>
> We already sync inside the kernel, it does not help here, though.
> Blockdev freezing might help.
>
is there patch applicable to vanilla kernel? After repairing reiser several
times (due to hard lockups during suspend-to-RAM) that sounds even more
interesting.
> > Another thing would be to create /boot as a separate partition.
>
> Yes, that's what i always advise: /boot on separate ext2 partition. Then
> GRUB resumes fast.
well, this is small system, using yet another partition looked like useless
waste :)
thank you for explanation
- -andrey
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