Re: 4.9 Kernels Hit Psand Repos

I don't seem to be able to start vservers. I get the following error with a
newly built stretch vserver:

# vserver -v vsrvdev1 start
> The following problem(s) were encountered while verifying vshelper
> functionality:
> * The vshelper state-directory '/var/run/vshelper' does not exist; since
> it is created by 'make install', this indicates a serious problem with
> your util-vserver installation
>
> To fix this, you can:
> * disable vshelper entirely by executing
>   | touch "/etc/vservers/.defaults/apps/vshelper/disabled"
> * disable only this message by executing
>   | touch "/etc/vservers/.defaults/apps/vshelper/warning-disabled"
> * configure the util-vserver vshelper script, e.g. by adding
>   | kernel.vshelper = /usr/lib/x86_64-linux-gnu/util-vserver/vshelper
>   to /etc/sysctl.conf and rebooting the machine, or by executing
>   | echo "/usr/lib/x86_64-linux-gnu/util-vserver/vshelper"
> >/proc/sys/kernel/vshelper


If I disable vshelper, I get the following when I try to start the vserver:

# vserver -v vsrvdev1 start
> /proc/uptime can not be accessed. Usually, this is caused by
> procfs-security. Please read the FAQ for more details
> http://linux-vserver.org/Proc-Security
>
> Failed to start vserver 'vsrvdev1'


My kernel version is 4.9.78-vs2.3.9.6-beng-reptoline

I have all the util-vserver systemd packages installed:

# dpkg -l | grep util-vserver
> ii  libvserver0
>  0.30.216-pre3126-stretch0.1-1  amd64        dynamic libraries for
> util-vserver
> ii  util-vserver-systemd                          0.30.216-pre3126-1.3
>        amd64        utilities for managing Linux-VServer guests
> ii  util-vserver-systemd-build                    0.30.216-pre3126-1.3
>        amd64        tools which can be used to build vservers
> ii  util-vserver-systemd-build-dbgsym             0.30.216-pre3126-1.3
>        amd64        Debug symbols for util-vserver-systemd-build
> ii  util-vserver-systemd-core                     0.30.216-pre3126-1.3
>        amd64        core utilities of util-vserver-systemd
> ii  util-vserver-systemd-core-dbgsym              0.30.216-pre3126-1.3
>        amd64        Debug symbols for util-vserver-systemd-core
> ii  util-vserver-systemd-dbgsym                   0.30.216-pre3126-1.3
>        amd64        Debug symbols for util-vserver-systemd
> ii  util-vserver-systemd-legacy                   0.30.216-pre3126-1.3
>        amd64        legacy scripts for util-vserver-systemd
> ii  util-vserver-systemd-legacy-dbgsym            0.30.216-pre3126-1.3
>        amd64        Debug symbols for util-vserver-systemd-legacy
> ii  util-vserver-systemd-python                   0.30.216-pre3126-1.3
>        amd64        python-bindings for util-vserver-systemd
> ii  util-vserver-systemd-python-dbgsym            0.30.216-pre3126-1.3
>        amd64        Debug symbols for util-vserver-systemd-python
> ii  util-vserver-systemd-sysv                     0.30.216-pre3126-1.3
>        amd64        initscripts for util-vserver-systemd




On Mon, Feb 5, 2018 at 6:54 AM, Tor Rune Skoglund <[email protected]> wrote:

> Hi,
>
> did not notice any such issue --- on the 4.9.76 at least. Will be
> installing the 4.9.78 now on at least two test servers today, and will
> report to the ML if we see any issues like the one you mentioned.
>
> BR,
> Tor Rune Skoglund
>
> Den 05. feb. 2018 09:47, skrev Andrew Ruthven:
> > Hey,
> >
> > Has anyone noticed big I/O issues with this kernel?
> >
> > I ran it for a few days, and found that processes (even on the main
> > system) were often sitting in a D state, seemingly blocked on I/O. But
> > there didn't seem to be much I/O happening. Even ssh'ing in to any
> > vservers or physical host was incredibly slow.
> >
> > Cheers,
> > Andrew
> >
> > On Tue, 2018-01-30 at 22:50 +0000, Ben Green wrote:
> >> Hi all,
> >>
> >> I've just finished and uploaded Linux kernel 4.9.78 with patch
> >> vs2.3.9.6. They are installable directly from the psand.net
> >> repository, or via the metapackage:
> >>
> >> linux-image-vserver-4.9-beng
> >>
> >> For i386 and amd64 architectures, and there's a version I've
> >> compiled
> >> with gcc-8 which can be installed directly, or via the metapackage:
> >>
> >> linux-image-vserver-4.9-beng-reptoline
> >>
> >> That one is amd64 only of course. These images are only provided in
> >> the Debian Stretch distro repositories. Instruction (which need a
> >> bit
> >> of updating but should get you where you need to be) are at:
> >>
> >> https://www.psand.net/services/public-repository.html
> >>
> >> These kernels are minimally tested and as usual come with
> >> absolutely
> >> no guarantees whatsoever.
> >>
> >> Cheers,
> >> Ben
> >>
>
>