I bumped into this yesterday on bionic. The commit 1e04bb71da3ed829 [1] reports to fix it.
[1] https://github.com/lxc/lxc/commit/1e04bb71da3ed829761ae8c729c3d021a6a709df Hopefully there will be a 3.0.x update to bionic at some point. ** Also affects: lxc (Ubuntu Focal) Importance: Medium Status: Fix Committed ** Also affects: lxc (Ubuntu Eoan) Importance: Undecided Status: New ** Also affects: lxc (Ubuntu Bionic) Importance: Undecided Status: New ** Changed in: lxc (Ubuntu Focal) Status: Fix Committed => Fix Released ** Changed in: lxc (Ubuntu Eoan) Status: New => Fix Released ** Changed in: lxc (Ubuntu Bionic) Status: New => Confirmed -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to lxc in Ubuntu. https://bugs.launchpad.net/bugs/1825155 Title: lxc-start crashed with SIGSEGV in cgfsng_payload_create() Status in lxc package in Ubuntu: Fix Released Status in lxc source package in Bionic: Confirmed Status in lxc source package in Eoan: Fix Released Status in lxc source package in Focal: Fix Released Bug description: https://errors.ubuntu.com/problem/8e0f1b9682f08bab5dedd4100e42f59cfe2cc004 Steps to reproduce: 1) Prepare creating unprivileged containers as described here: https://linuxcontainers.org/lxc/getting-started/ 2) Create a new container (e.g. "lxc-create -n container -t download" and then "debian", "stretch" and "amd64"). 3) Start the created container in foreground using "lxc-start -n container -F" ProblemType: Crash DistroRelease: Ubuntu 18.10 Package: lxc-utils 3.0.3-0ubuntu1~18.10.1 ProcVersionSignature: Ubuntu 4.18.0-17.18-generic 4.18.20 Uname: Linux 4.18.0-17-generic x86_64 ApportVersion: 2.20.10-0ubuntu13.2 Architecture: amd64 CrashCounter: 1 CurrentDesktop: KDE Date: Wed Apr 17 12:03:37 2019 ExecutablePath: /usr/bin/lxc-start InstallationDate: Installed on 2019-04-15 (1 days ago) InstallationMedia: Kubuntu 18.10 "Cosmic Cuttlefish" - Release amd64 (20181017.2) ProcCmdline: BOOT_IMAGE=/vmlinuz-4.18.0-17-generic root=UUID=0739f905-33c9-4de3-9ba9-a63b8d69e5e5 ro quiet splash vt.handoff=1 SegvAnalysis: Segfault happened at: 0x7f6292c5dbbd: mov (%rax),%r15 PC (0x7f6292c5dbbd) ok source "(%rax)" (0x00000000) not located in a known VMA region (needed readable region)! destination "%r15" ok SegvReason: reading NULL VMA Signal: 11 SourcePackage: lxc StacktraceTop: ?? () from /usr/lib/x86_64-linux-gnu/liblxc.so.1 __lxc_start () from /usr/lib/x86_64-linux-gnu/liblxc.so.1 lxc_start () from /usr/lib/x86_64-linux-gnu/liblxc.so.1 ?? () from /usr/lib/x86_64-linux-gnu/liblxc.so.1 ?? () from /usr/lib/x86_64-linux-gnu/liblxc.so.1 Title: lxc-start crashed with SIGSEGV in __lxc_start() UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo defaults.conf: lxc.net.0.type = veth lxc.net.0.link = lxcbr0 lxc.net.0.flags = up lxc.net.0.hwaddr = 00:16:3e:xx:xx:xx mtime.conffile..etc.apport.crashdb.conf: 2019-04-17T11:58:15.556166 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/1825155/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
