[CRIU] [PATCH 4/5] [RFC] cr: implemented the support for the AArch64 architecture

[Christopher Covington]

On 02/05/2014 10:14 AM, Christopher Covington wrote:

> On 02/05/2014 01:14 AM, Alexander Kartashov wrote:

>> diff --git a/arch/aarch64/include/asm/types.h b/arch/aarch64/include/asm/types.h
>> new file mode 100644
>> index 0000000..777af66
>> --- /dev/null
>> +++ b/arch/aarch64/include/asm/types.h

>> +// Copied from the Linux kernel arch/arm64/include/asm/memory.h
>> +// FIXME: what about a 32bit task?
> 
> Last time I checked I was able to restore an A32 task with an A32 CRIU on an
> A64 kernel out of the box, but dump didn't work (maybe it was the
> GETREGS/GETREGSET issue). One possibility might be to just fix A32 CRIU dump
> on an A64 kernel and then say if you want to dump an A32 task, use an A32 CRIU.

Some follow up: A32 CRIU currently fails against an A64 kernel with kcmp not
supported, and in the long term it would probably be nicest to be able to
checkpoint all processes with the A64 CRIU for use cases like the
dump-kexec-restore rebootless kernel upgrade.

But that's long-term and I should get back to debugging the plain A64 stuff.
I'm currently getting:

Error (protobuf.c:606): Wrong object requested 0.

I also see this in A32. I'll git bisect with the last version that worked for
me on A32 and see if I can find the cause.

Christopher

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