Re: Back to BFS+TOI issue

The second interesting thing we've discovered recently is: if
hibernation has done with CFS, thawing with BFS is OK. The issue is not
about decompression, *it's about compression*.

09.03.12 01:20, Oleksandr Natalenko написав(ла):
> Hi all.
> 
> I mailed Con Kolivas about TOI+BFS issue and he answered that won't fix
> it as BFS is written to get mainline hibernation work but not TOI. He is
> surprised that BFS+TOI works *somehow*.
> 
> The only quote about technical reason is:
> 
> "I suspect that something to do with the way the
> compression threads are woken up on resume is broken when run on BFS."
> 
> So the last hope is Nigel.
> 
> As BFS+TOI users community is large enough, I expect it to help solving
> the issue at least by providing debug info. We really need these
> 3rd-party patches work together.
> 
> For now, I discovered that LZO fails as well as LZF does, but with
> different error.
> 
> In case of LZF it fails at tuxonice_compress.c:257 (outlen != PAGE_SIZE).
> 
> In case of LZO it fails at tuxonice_compress.c:254 (ret), and also at
> tuxonice_io.c:645 (io_pageset == 1).
> 
> So crypto_comp_decompress call at tuxonice_compress.c:245 fails. Why —
> no idea. I cannot investigate it deeper because of lack of knowledge
> about kernel internals.
> 
> Nigel, help us if you can. Hope you HDDs are up and spinning .
> 
> Regards,
>   Oleksandr "post-factum" Natalenko, B.S.
>   http://pf.natalenko.name/
>

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