Re: [CFT][PATCH] mnt: Implicitly add MNT_NODEV on remount when it was implicitly added by mount

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Am 30.11.2014 um 16:00 schrieb Andy Lutomirski:
> On Sun, Nov 30, 2014 at 6:58 AM, Richard Weinberger <richard@xxxxxx> wrote:
>> Eric,
>>
>> Am 30.11.2014 um 00:05 schrieb Eric W. Biederman:
>>>
>>> Now that remount is properly enforcing the rule that you can't remove
>>> nodev at least sandstorm.io is breaking when performing a remount.
>>>
>>> It turns out that there is an easy intuitive solution implicitly
>>> add nodev on remount when nodev was implicitly added on mount.
>>
>> Is this patch supposed to unbreak libvirt-lxc?
>> At least 1.2.9 is still broken.
>>
> 
> Either this patch or my variant of it fixes the libvirt-lxc breakage
> that I understand, but IIRC there was some other issue that none of us
> figured out at K-S.

Currently it fails here:
2014-11-25 22:36:45.295+0000: 1: debug : virFileMakePathHelper:2436 : path=/proc mode=0777
2014-11-25 22:36:45.295+0000: 1: debug : lxcContainerMountBasicFS:918 : Mount proc on /proc type=proc flags=e
2014-11-25 22:36:45.296+0000: 1: debug : lxcContainerMountBasicFS:873 : Processing /proc/sys -> /proc/sys
2014-11-25 22:36:45.296+0000: 1: debug : virFileMakePathHelper:2436 : path=/proc/sys mode=0777
2014-11-25 22:36:45.296+0000: 1: debug : lxcContainerMountBasicFS:918 : Mount /proc/sys on /proc/sys type=(null) flags=1000
2014-11-25 22:36:45.296+0000: 1: error : lxcContainerMountBasicFS:933 : Failed to re-mount /proc/sys on /proc/sys flags=1021: Operation not permitted

Thanks,
//richard
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