[Bug 1764521] Re: apt crashed with SIGSEGV

[Julian Andres Klode]

Have you run memory checks? If everything crashes, it might be a faulty
memory module.

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Title:
  apt crashed with SIGSEGV

Status in apt package in Ubuntu:
  New

Bug description:
  Apport is reporting this in conjunction with
  https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1764519

  dmesg said there were systemd errors. Tried to run `sudo systemctl
  status` but that sigfaulted. Tried to reboot, but that failed. Had to
  hard reboot.

  malachid at odin:~$ lsb_release -rd
  Description: Ubuntu Bionic Beaver (development branch)
  Release: 18.04

  malachid at odin:~$ apt-cache policy apt
  apt:
    Installed: 1.6~beta1
    Candidate: 1.6~beta1
    Version table:
   *** 1.6~beta1 500
          500 http://archive.ubuntu.com/ubuntu bionic/main amd64 Packages
          100 /var/lib/dpkg/status

  ProblemType: Crash
  DistroRelease: Ubuntu 18.04
  Package: apt 1.6~beta1
  ProcVersionSignature: Ubuntu 4.15.0-15.16-generic 4.15.15
  Uname: Linux 4.15.0-15-generic x86_64
  NonfreeKernelModules: nvidia_modeset nvidia
  ApportVersion: 2.20.9-0ubuntu4
  Architecture: amd64
  CrashCounter: 1
  Date: Mon Apr 16 11:48:25 2018
  ExecutablePath: /usr/bin/apt
  ProcCmdline: apt install libdvdnav4 libdvdread4 libdvd-pkg
  ProcEnviron:
   LANG=en_US.UTF-8
   TERM=xterm-256color
   PATH=(custom, no user)
   SHELL=/bin/bash
  SegvAnalysis:
   Segfault happened at: 0x7f0342c2b76b:	cmp    %r14w,(%rax)
   PC (0x7f0342c2b76b) ok
   source "%r14w" ok
   destination "(%rax)" (0x7f02cba3c0cd) not located in a known VMA region (needed writable region)!
  SegvReason: writing unknown VMA
  Signal: 11
  SourcePackage: apt
  StacktraceTop:
   ?? () from /lib/x86_64-linux-gnu/liblzma.so.5
   ?? () from /lib/x86_64-linux-gnu/liblzma.so.5
   ?? () from /lib/x86_64-linux-gnu/liblzma.so.5
   ?? () from /lib/x86_64-linux-gnu/liblzma.so.5
   ?? () from /lib/x86_64-linux-gnu/liblzma.so.5
  Title: apt crashed with SIGSEGV
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups:

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