[CRIU] OverlayFS Patch

[Gabriel Guimaraes]

On Tue, Aug 4, 2015 at 11:28 AM, Gabriel Guimaraes <guimaraesg at google.com>
wrote:

>
>
> On Tue, Aug 4, 2015 at 11:28 AM, Gabriel Guimaraes <guimaraesg at google.com>
> wrote:
>
>>
>>
>> On Tue, Aug 4, 2015 at 10:39 AM, Gabriel Guimaraes <guimaraesg at google.com
>> > wrote:
>>
>>> Hi Pavel,
>>>
>>> Filipe said I should create an open pull request, which is simpler:
>>>
>>> https://github.com/xemul/criu/pull/15
>>>
>>> If you still want me to break down the patch and send you via email I
>>> can also do that.
>>>
>>> Best,
>>> Gabriel
>>>
>>> On Tue, Aug 4, 2015 at 10:17 AM, Pavel Emelyanov <xemul at parallels.com>
>>> wrote:
>>>
>>>> On 08/03/2015 11:27 PM, Gabriel Guimaraes wrote:
>>>> > Hi Pavel,
>>>> >
>>>> > I believe Saied has already talked to you about this patch. It
>>>> enables the --overlayfs flag in CRIU which
>>>> > compensates for the OverlayFS bug in the Linux Kernel before version
>>>> 4.2 (more about the bug at
>>>> > http://criu.org/Docker). More detailed information can be found in
>>>> the patch itself.
>>>>
>>>> Great :) But I see 3 patches inside. Would you split the e-mails too?
>>>>
>>>> > We did not implement a very sophisticated error checking mechanism,
>>>> so an error such as "buffer too small"
>>>> > within __lookup_overlayfs will be printed but won't necessarily make
>>>> CRIU abort. If you'd like, we can
>>>> > change that, but in my opinion this would make the code a lot more
>>>> complicated with few gains, since it's
>>>> > already easy to debug what error happened as is.
>>>>
>>>> Sure, let's keep this simple all the more so this is a workaround that
>>>> will go away soon.
>>>>
>>>> -- Pavel
>>>>
>>>>
>>>
>>
>
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