[CRIU] CRIU aarch64 BUG

[Christopher Covington]

Hi Wentao,

Please keep the CRIU mailing list copied, in case there are people on
the list or reading the archives who face the same issue, and to include
others who may be able to help when I'm busy or don't know the answer.

On 12/01/2015 02:11 AM, Wentao Zhang wrote:
> And more, I have patched the VDSO kernel patch on my linux, it is the
> same. Doesn't work.

My patch depends on Laurent Dufour's work which was merged in 4.2. Based
on the kernel version you've provided below, you may need to pull in his
changes as well (f2abee, 83d3f0, 4abad2, 2ae416).

> 在 2015/12/1 13:39, Wentao Zhang 写道:
>> hi  Christopher,
>> My criu version is 1.7.2  and i have tried the latest version on
>> master branch which cloned from github, it is the same.
>>
>> root at linaro-developer:~# criu --version
>> Version: 1.7.2

Good.

>> Kernel version: 4.1.12:
>>    root at linaro-developer:~# uname -a
>>    Linux linaro-developer 4.1.12 #1 SMP PREEMPT Mon Nov 30 21:05:04
>> CST 2015 aarch64 aarch64 aarch64 GNU/Linux

No issues with this version come to mind, other than Laurent's
foundational work for the VDSO remap support not being present.

>> root at linaro-developer:~# getconf PAGE_SIZE
>> 4096

This is the least problematic value. The problem is probably unrelated
to PAGE_SIZE.

>> For the detailed log, you can view it from this link:
>>      https://github.com/xemul/criu/issues/90
>>
>> BTW: have you succeeded to run c/r for "simple loop" test on ARM64 arch?

Yes, I am able to checkpoint and restore it (and many other
applications) successfully, when the VDSO remap patch is applied.

Regards,
Christopher Covington

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