Devuan bug report logs - #445
lxc-start and lxc-execute cause segfault started by non-root without libpam-cgfs

Package: lxc; Maintainer for lxc is (unknown); Source for lxc is src:lxc.

Reported by: Ryutaroh Matsumoto <ryutaroh@ict.e.titech.ac.jp>

Date: Sat, 9 May 2020 01:33:02 UTC

Severity: minor

Tags: debian

Found in version 1:3.1.0+really3.0.3-8

Done: Mark Hindley <mark@hindley.org.uk>

Full log

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Date: Sat, 9 May 2020 17:07:25 +0100
From: Mark Hindley <mark@hindley.org.uk>
To: Ryutaroh Matsumoto <ryutaroh@ict.e.titech.ac.jp>, 445@bugs.devuan.org
Subject: Re: bug#445: lxc-start and lxc-execute cause segfault started by
 non-root and completely unusable
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On Sat, May 09, 2020 at 10:16:05AM +0900, Ryutaroh Matsumoto wrote:
> Package: lxc
> Version: 1:3.1.0+really3.0.3-8
> Severity: grave
> Justification: renders package unusable

Thanks.
 
> On a Devuan Beowulf (running on qemu-kvm), as root I can use the lxc package
> with no problem. Thank you. As root, "lxc-start -F -n beowulf" works fine
> in the below qemu-kvm image.
> 
> But when lxc-execute or lxc-start is run by a non-root user, they always give
> segmentation fault and are completely unsable (screenshot attached).
> One of claimed advantages of lxc is to allow non-root users to use containers,
> but Devuan users cannot enjoy it...

Is this different behaviour than when running on a Debian host? Devuan doesn't
fork lxc and uses Debian's packages directly.

Does your unprivileged user have write access to cgroups? That appears to be a
common cause of this from a quick internet search.

Mark

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Devuan bug report logs - #445 lxc-start and lxc-execute cause segfault started by non-root without libpam-cgfs

Devuan bug report logs - #445
lxc-start and lxc-execute cause segfault started by non-root without libpam-cgfs