Re: [PATCH v6 0/2] rbind mounts for /dev and /sys

["Maxim Yu. Osipov" <mosipov@ilbers.de>]

Hi Cedric,

After applying these patches I've recognized that after
running ci_build.sh script, the number of mounts significantly increases.

On my PC it looks like that

$ mount | wc -l
34
isar$ ./scripts/ci_build.sh -q -f
...
$ mount | wc -l
100

If I revert these patches the number of mount points
stays the same after running ci_build.sh script.

This behavior significantly affects CI -
builds start to fail. This is a blocking point for CI and if we don't 
find a quick solution I will have to revert these patches in 'next'.

Thanks,
Maxim.

On 11/20/18 3:40 PM, Cedric Hombourger wrote:
> Some of the packages I have been rebuilding within Isar require /sys mounted.
> For instance, golang-google-grpc runs some package tests after it builds itself
> and reads properties from /sys/class/dmi.
> 
> The initial version of this patch series only added a mount of /sys. Henning
> then suggested that we follow Gentoo's guidelines for chroots. As such, this
> patch series is now mounting /dev and /sys as rbind mounts but leaves /proc
> as a regular procfs mount (like Gentoo does).
> 
> ChangeLog:
> 
> v6: remove unnecessary mkdir for /sys
> v5: cover letter added as suggested by Jan (private e-mail)
> v4: limit rbind mounts to /dev and /sys, leave /proc as a regular mount
> v3: rbind mounts for /dev, /proc and /sys, add explicit umount calls
> v2: create /sys directory
> v1: initial submission, simply mount /sys
> 
> Cedric Hombourger (2):
>    buildchroot+bootstrap: rbind mount for /dev
>    buildchroot: add sysfs mount since expected by some packages
> 
>   meta/classes/buildchroot.bbclass                    | 5 ++++-
>   meta/classes/image.bbclass                          | 3 ++-
>   meta/classes/isar-bootstrap-helper.bbclass          | 6 +++++-
>   meta/classes/isar-image.bbclass                     | 3 ++-
>   meta/recipes-core/isar-bootstrap/isar-bootstrap.inc | 8 ++++++--
>   5 files changed, 19 insertions(+), 6 deletions(-)
> 


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Maxim Osipov
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