[Suspend2-devel] New crypto / compression api

[Nigel Cunningham]

Hi.

On Thu, 2005-06-23 at 06:31, Roland Hagemann wrote:
> Hi Nigel and the rest,
> 
> I just upgraded to 2.1.9.5 on 2.6.12 and I haven't been able to suspend
> so far. I suspect it's the changes in the compression area. So far I've
> been using lzf compression without any problems. Maybe I'm just missing
> someting obvious here...
> 
> This is what dmesg shows on boot:
> 
> Software Suspend Core.
> Software Suspend Compression Driver loading.
> Software Suspend Encryption Driver loading.
> Software Suspend userspace UI support loading.
> Software Suspend Swap Writer loading.
> Software Suspend 2.1.9.5: Swapwriter: Signature found.
> Software Suspend 2.1.9.5: Suspending enabled.
> 
> When I try to suspend it says
> 
> Software Suspend 2.1.9.5: Initiating a software suspend cycle.
> Software Suspend 2.1.9.5: Swapwriter: Signature found.
> Software Suspend 2.1.9.5: Suspending enabled.
> Suspend2: Failed to initialise the compression transform.
> Please include the following information in bug reports:
> - SUSPEND core   : 2.1.9.5
> - Kernel Version : 2.6.12
> - Compiler vers. : 3.3
> - Attempt number : 1
> - Pageset sizes  : 9848 (9848 low) and 81433 (81433 low).
> - Parameters     : 1 64 0 1 400 4
> - Calculations   : Image size: 91486. Ram to suspend: 1291.
> - Limits         : 130730 pages RAM. Initial boot: 128061.
> - Overall expected compression percentage: 0.
> - Compressor  enabled.
> - Encryptor  enabled.
> - Swapwriter active.
>   Swap available for image: 262620 pages.
> - Preemptive kernel.
> - Max extents used: 4
> - No I/O speed stats available.
> 
> One other thing i tried is
> echo lzf > /proc/software_suspend/compressor
> but then suspending resulted in an oops (I can provide a digicam photo
> if necessary). Also

Please

> echo 1 > /proc/software_suspend/disable_compression
> didn't help.

Perhaps I have a bug and you also need echo 1 >
/proc/software_suspend/disable_encryption?

> I do have lzf compression compiled in btw.
> CONFIG_CRYPTO_LZF=y

Looks right!

Regards,

Nigel

> Thanks for any help !
> Roland
> 
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