[CRIU] CRIU aarch64 BUG

[Christopher Covington]

On 12/02/2015 09:57 PM, Wentao Zhang wrote:
> Hi Christopher,
> 
>  thanks for your information.
>  which version of kernel do you use,  latest-stable?  , or do you have
> special config on ARM64.
> 
> Would you please send me your .config for your kernel ?

I'm afraid I've rebased and reconfigured in the mean time and lost the
exact info, but I think I checked against 4.4-rc something with the
arm64 defconfig plus the options documented on the wiki
https://criu.org/Installation#Configuring_the_kernel.

Christopher Covington

> 在 2015/12/3 1:50, Christopher Covington 写道:
>> 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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