On Mon, Apr 30, 2018, 12:41 Ryan Harper <1760...@bugs.launchpad.net>
wrote:

> On Mon, Apr 30, 2018 at 12:14 PM, Colin Ian King
> <1760...@bugs.launchpad.net> wrote:
> > The code actually polls /dev/zfs until it appears. The issue here is
> > that it does not appear after 10 seconds, and then it gives up.
>
> Yes, you're right.
>
> Would it make sense to have zfsutils know it's running in a container?
>

I think "running in a container" is too strong but making it smarter by
dropping the timeout and simply reporting an error could work if it doesn't
regress on the host. Which I don't expect it to. I haven't given up playing
with devtmpfs and we are on our way to getting quite close to properly
delegated devices by user namespace.


> >
> > --
> > You received this bug notification because you are subscribed to the bug
> > report.
> > https://bugs.launchpad.net/bugs/1760173
> >
> > Title:
> >   zfs, zpool commands hangs for 10 seconds without a /dev/zfs
> >
> > To manage notifications about this bug go to:
> >
> https://bugs.launchpad.net/ubuntu/+source/lxd/+bug/1760173/+subscriptions
>
> --
> You received this bug notification because you are a member of Ubuntu
> containers team, which is subscribed to lxd in Ubuntu.
> Matching subscriptions: lxd
> https://bugs.launchpad.net/bugs/1760173
>
> Title:
>   zfs, zpool commands hangs for 10 seconds without a /dev/zfs
>
> Status in lxd package in Ubuntu:
>   New
> Status in zfs-linux package in Ubuntu:
>   Triaged
>
> Bug description:
>   1. # lsb_release -rd
>   Description:  Ubuntu 16.04.4 LTS
>   Release:      16.04
>
>   2. # apt-cache policy zfsutils-linux
>   zfsutils-linux:
>     Installed: 0.6.5.6-0ubuntu19
>     Candidate: 0.6.5.6-0ubuntu19
>     Version table:
>    *** 0.6.5.6-0ubuntu19 500
>           500 http://archive.ubuntu.com/ubuntu xenial-updates/main amd64
> Packages
>           100 /var/lib/dpkg/status
>
>   3. When inside a lxd container with zfs storage, zfs list or zpool
>   status either return or report what's going on.
>
>   4. When inside a lxd container with zfs storage, zfs list or zpool
>   status appears to hang, no output for 10 seconds.
>
>   strace reveals that without a /dev/zfs the tools wait for it to appear
>   for 10 seconds but do not provide a command line switch to disable or
>   make it more verbose.
>
>   ProblemType: Bug
>   DistroRelease: Ubuntu 16.04
>   Package: zfsutils-linux 0.6.5.6-0ubuntu19
>   ProcVersionSignature: Ubuntu 4.13.0-36.40~16.04.1-generic 4.13.13
>   Uname: Linux 4.13.0-36-generic x86_64
>   ApportVersion: 2.20.1-0ubuntu2.15
>   Architecture: amd64
>   Date: Fri Mar 30 18:09:29 2018
>   ProcEnviron:
>    TERM=xterm-256color
>    PATH=(custom, no user)
>    LANG=C.UTF-8
>   SourcePackage: zfs-linux
>   UpgradeStatus: No upgrade log present (probably fresh install)
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/ubuntu/+source/lxd/+bug/1760173/+subscriptions
>

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https://bugs.launchpad.net/bugs/1760173

Title:
  zfs, zpool commands hangs for 10 seconds without a /dev/zfs

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/lxd/+bug/1760173/+subscriptions

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