[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 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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