[Bug 1870930] Re: systemctl crashed with SIGSEGV

[Launchpad Bug Tracker]

This bug was fixed in the package systemd - 245.4-4ubuntu3

---------------
systemd (245.4-4ubuntu3) focal; urgency=medium

  * dhcp: Allow setting request options again
    link_configure() may be called multiple times on a link causing request options
    set multiple times. (LP: #1870410)
    File: debian/patches/dhcp-Allow-setting-request-options-again.patch
    https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=4c48893eb04b01a2ec62d2d2823a79a9f5cb2b80
  * Don't try calling NULL callback in bus_wait_for_units_clear.
    This fixes a crash most frequently occurring in the Unity session
    (LP: #1870930)
    File: debian/patches/shared-Don-t-try-calling-NULL-callback-in-bus_wait_for_un.patch
    https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=b2ec1a3367cef401f8de745fecc9c385f020be78

 -- Balint Reczey <rbalint at ubuntu.com>  Wed, 22 Apr 2020 11:04:26 +0200

** Changed in: systemd (Ubuntu Focal)
       Status: Confirmed => Fix Released

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https://bugs.launchpad.net/bugs/1870930

Title:
  systemctl crashed with SIGSEGV

Status in systemd package in Ubuntu:
  Fix Released
Status in systemd source package in Focal:
  Fix Released

Bug description:
  Logged in to an updated focal, entered a few unrelated commands in
  gnome-terminal, and then the crash message showed up.

  ProblemType: Crash
  DistroRelease: Ubuntu 20.04
  Package: systemd 245.2-1ubuntu2
  ProcVersionSignature: Ubuntu 5.4.0-21.25-generic 5.4.27
  Uname: Linux 5.4.0-21-generic x86_64
  NonfreeKernelModules: nvidia_modeset nvidia
  ApportVersion: 2.20.11-0ubuntu22
  Architecture: amd64
  CurrentDesktop: Unity:Unity7:ubuntu
  Date: Sun Apr  5 16:26:11 2020
  Disassembly: => 0x0:	Cannot access memory at address 0x0
  ExecutablePath: /usr/bin/systemctl
  InstallationDate: Installed on 2019-11-10 (147 days ago)
  InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017)
  MachineType: Notebook P64_HJ,HK1
  ProcCmdline: systemctl --user start --wait unity-session.target
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-21-generic root=UUID=a8fd6652-86e7-4e1a-8259-809e0a4abd2b ro quiet splash
  SegvAnalysis:
   Segfault happened at: 0x0:	Cannot access memory at address 0x0
   PC (0x00000000) not located in a known VMA region (needed executable region)!
  SegvReason: executing NULL VMA
  Signal: 11
  SourcePackage: systemd
  StacktraceTop:
   ?? ()
   ?? ()
   ?? ()
   ?? ()
   ?? ()
  SystemdDelta:
   [EXTENDED]   /usr/lib/systemd/system/rc-local.service → /usr/lib/systemd/system/rc-local.service.d/debian.conf
   [EXTENDED]   /usr/lib/systemd/system/systemd-timesyncd.service → /usr/lib/systemd/system/systemd-timesyncd.service.d/disable-with-time-daemon.conf
   [EXTENDED]   /usr/lib/systemd/system/user at .service → /usr/lib/systemd/system/user at .service.d/timeout.conf
   
   3 overridden configuration files found.
  Title: systemctl crashed with SIGSEGV
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo
  dmi.bios.date: 07/06/2017
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 1.05.08
  dmi.board.asset.tag: Tag 12345
  dmi.board.name: P64_HJ,HK1
  dmi.board.vendor: Notebook
  dmi.board.version: Not Applicable
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: Notebook
  dmi.chassis.version: N/A
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1.05.08:bd07/06/2017:svnNotebook:pnP64_HJ,HK1:pvrNotApplicable:rvnNotebook:rnP64_HJ,HK1:rvrNotApplicable:cvnNotebook:ct10:cvrN/A:
  dmi.product.family: Not Applicable
  dmi.product.name: P64_HJ,HK1
  dmi.product.sku: Not Applicable
  dmi.product.version: Not Applicable
  dmi.sys.vendor: Notebook
  separator:

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