[Devel] Re: [PATCH 3/7] make CONFIG_CHECKPOINT dependonCONFIG_CHECKPOINT_SUPPORT

[Oren Laadan]

Hi Gordon,

Serge E. Hallyn wrote:
> Quoting Ralph-Gordon Paul (Ralph-Gordon.Paul at uni-duesseldorf.de):
>> Ah okay sorry, i used this version: http://git.ncl.cs.columbia.edu/?p=linux-cr.git;a=shortlog;h=refs/heads/ckpt-v15
>>
>> Is this the official place to download the up to date version ?

ckpt-v15 branch per-se is a snapshot of the patchset as it was released.

ckpt-v15-dev is the development branch that is based on ckpt-v15, and is
probably what you want to use.

the userspace utilities are in the matching v15-dev in 'user-cr.git'.

>>
>> -Gordon
> 
> Hi Gordon,
> 
> yes, and you were right about needing compat vdso.  Sorry about the
> inconvenience (since it was my patch).  I was just saying that since
> Oren has added the underlying code for moving vdso around, there is no
> reason why we shouldn't complete that support (with 1 line of code)
> allowing us to remove the dependency on CONFIG_COMPAT_VDSO.

True, no need to keep that dependency. Will remove.

Note, however, that we still don't handle the case where the contents of
the VDSO page(s) differ between checkpoint and restart time...  So it's
on the todo list to at least detect that the format changed.

That said, that will work in most cases, definitely on the same machine.

Oren.

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