On Sun, Jul 21, 2019 at 04:24:08AM -0000, Rafael David Tinoco wrote:
> Somehow the lxd containers being used for autopkgtest are, likely,
> different. x64 seems to be running privileged containers for need_root
> tests, while armhf is not (orelse x64 selfpkgtests wouldn't pass either,
> like demonstrated in previous comment).

armhf is the only architecture that runs tests in containers.  All other
architectures run them in VMs.  (The only reason armhf doesn't use VMs is
because we can't deploy an armhf VM in openstack.)

> I'll suggest a hints-ubuntu test marking this as bad-test, but it seems
> that the environment is bad, and not the test.

Hard disagree.  If the test can detect that it's running in an unprivileged
container, it should skip any tests which require privileges.  If the tests
as a whole can't be run in an unprivileged container, then they should
declare Restrictions: isolation-machine instead of Restrictions:
isolation-container.

-- 
You received this bug notification because you are a member of Ubuntu
High Availability Team, which is subscribed to corosync in Ubuntu.
https://bugs.launchpad.net/bugs/1828228

Title:
  corosync fails to start in container (armhf) bump some limits

Status in Auto Package Testing:
  New
Status in corosync package in Ubuntu:
  In Progress
Status in corosync-qdevice package in Ubuntu:
  In Progress

Bug description:
  Currently pacemaker v2 fails to start in armhf containers (and by
  extension corosync too).

  I found that it is reproducible locally, and that I had to bump a few
  limits to get it going.

  Specifically I did:

  1) bump memlock limits
  2) bump rmem_max limits

  = 1) Bump memlock limits =

  I have no idea, which one of these finally worked, and/or is
  sufficient. A bit of a whack-a-mole.

  cat >>/etc/security/limits.conf <<EOF
  * soft memlock unlimited
  * hard memlock unlimited
  EOF

  lxc config set nice-mako limits.kernel.memlock 33554432

  mkdir -p /etc/systemd/system/snap.lxd.daemon.service.d/
  cat >/etc/systemd/system/snap.lxd.daemon.service.d/override.conf <<EOF
  [Service]
  LimitMEMLOCK=6553600000
  EOF
  systemctl daemon-reload
  systemctl restart snap.lxd.daemon.service

  
  = 2) Bump rmem_max values =

  Observed:
  # strace -s99999 -f /usr/sbin/corosync 2>&1 | grep sockop
  [pid   447] setsockopt(12, SOL_SOCKET, SO_RCVBUF, [8388608], 4) = 0
  [pid   447] getsockopt(12, SOL_SOCKET, SO_RCVBUF, [425984], [4]) = 0
  [pid   447] setsockopt(12, SOL_SOCKET, SO_RCVBUFFORCE, [8388608], 4) = -1 
EPERM (Operation not permitted)

  Bumped mem_max using:
  sudo sysctl -w net.core.wmem_max=8388608
  sudo sysctl -w net.core.rmem_max=8388608

  (Not sure if the desired sized depends on the machine/container I am
  running on)

  
  Can we check the values for above things on our armhf containers and/or bump 
them? or like can we mark pacemaker v2.0 autopkgtest as ignored on armhf?

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