[Bug 1852903] Re: systemd Caught <SEGV>, dumped core

[Arie Skliarouk]

This started happening after automatic upgrade:

2019-11-14 06:57:49 startup packages remove
2019-11-14 06:57:49 status installed linux-image-4.15.0-1051-aws:amd64 4.15.0-1051.53
2019-11-14 06:57:50 remove linux-image-4.15.0-1051-aws:amd64 4.15.0-1051.53 <none>
2019-11-14 06:57:50 status half-configured linux-image-4.15.0-1051-aws:amd64 4.15.0-1051.53
2019-11-14 06:57:50 status half-installed linux-image-4.15.0-1051-aws:amd64 4.15.0-1051.53
2019-11-14 06:57:52 status config-files linux-image-4.15.0-1051-aws:amd64 4.15.0-1051.53
2019-11-14 06:57:52 status config-files linux-image-4.15.0-1051-aws:amd64 4.15.0-1051.53
2019-11-14 06:57:52 status installed linux-modules-4.15.0-1051-aws:amd64 4.15.0-1051.53
2019-11-14 06:57:52 remove linux-modules-4.15.0-1051-aws:amd64 4.15.0-1051.53 <none>
2019-11-14 06:57:52 status half-configured linux-modules-4.15.0-1051-aws:amd64 4.15.0-1051.53
2019-11-14 06:57:52 status half-installed linux-modules-4.15.0-1051-aws:amd64 4.15.0-1051.53
2019-11-14 06:57:52 status config-files linux-modules-4.15.0-1051-aws:amd64 4.15.0-1051.53
2019-11-14 06:57:52 status config-files linux-modules-4.15.0-1051-aws:amd64 4.15.0-1051.53
2019-11-14 06:57:52 startup packages configure
2019-11-14 06:57:54 startup packages remove
2019-11-14 06:57:54 status installed linux-headers-4.15.0-1051-aws:amd64 4.15.0-1051.53
2019-11-14 06:57:54 remove linux-headers-4.15.0-1051-aws:amd64 4.15.0-1051.53 <none>
2019-11-14 06:57:54 status half-configured linux-headers-4.15.0-1051-aws:amd64 4.15.0-1051.53
2019-11-14 06:57:54 status half-installed linux-headers-4.15.0-1051-aws:amd64 4.15.0-1051.53
2019-11-14 06:57:56 status config-files linux-headers-4.15.0-1051-aws:amd64 4.15.0-1051.53
2019-11-14 06:57:56 status config-files linux-headers-4.15.0-1051-aws:amd64 4.15.0-1051.53
2019-11-14 06:57:56 status config-files linux-headers-4.15.0-1051-aws:amd64 4.15.0-1051.53
2019-11-14 06:57:56 status not-installed linux-headers-4.15.0-1051-aws:amd64 <none>
2019-11-14 06:57:56 startup packages configure
2019-11-14 06:57:59 startup archives unpack
2019-11-14 06:57:59 upgrade linux-libc-dev:amd64 4.15.0-69.78 4.15.0-70.79
2019-11-14 06:57:59 status half-configured linux-libc-dev:amd64 4.15.0-69.78
2019-11-14 06:57:59 status unpacked linux-libc-dev:amd64 4.15.0-69.78
2019-11-14 06:57:59 status half-installed linux-libc-dev:amd64 4.15.0-69.78
2019-11-14 06:57:59 status half-installed linux-libc-dev:amd64 4.15.0-69.78
2019-11-14 06:57:59 status unpacked linux-libc-dev:amd64 4.15.0-70.79
2019-11-14 06:57:59 status unpacked linux-libc-dev:amd64 4.15.0-70.79
2019-11-14 06:57:59 startup packages configure
2019-11-14 06:57:59 configure linux-libc-dev:amd64 4.15.0-70.79 <none>
2019-11-14 06:57:59 status unpacked linux-libc-dev:amd64 4.15.0-70.79
2019-11-14 06:57:59 status half-configured linux-libc-dev:amd64 4.15.0-70.79
2019-11-14 06:57:59 status installed linux-libc-dev:amd64 4.15.0-70.79
2019-11-14 06:58:01 startup archives unpack
2019-11-14 06:58:02 upgrade qemu-guest-agent:amd64 1:2.11+dfsg-1ubuntu7.15 1:2.11+dfsg-1ubuntu7.20
2019-11-14 06:58:02 status half-configured qemu-guest-agent:amd64 1:2.11+dfsg-1ubuntu7.15
2019-11-14 06:58:02 status unpacked qemu-guest-agent:amd64 1:2.11+dfsg-1ubuntu7.15
2019-11-14 06:58:02 status half-installed qemu-guest-agent:amd64 1:2.11+dfsg-1ubuntu7.15
2019-11-14 06:58:02 status triggers-pending systemd:amd64 237-3ubuntu10.29
2019-11-14 06:58:02 status triggers-pending ureadahead:amd64 0.100.0-21
2019-11-14 06:58:02 status triggers-pending man-db:amd64 2.8.3-2ubuntu0.1
2019-11-14 06:58:02 status half-installed qemu-guest-agent:amd64 1:2.11+dfsg-1ubuntu7.15
2019-11-14 06:58:28 status unpacked qemu-guest-agent:amd64 1:2.11+dfsg-1ubuntu7.20
2019-11-14 06:58:28 status unpacked qemu-guest-agent:amd64 1:2.11+dfsg-1ubuntu7.20
2019-11-14 06:58:28 startup packages configure
2019-11-14 06:58:28 trigproc ureadahead:amd64 0.100.0-21 <none>
2019-11-14 06:58:28 status half-configured ureadahead:amd64 0.100.0-21
2019-11-14 06:58:28 status installed ureadahead:amd64 0.100.0-21
2019-11-14 06:58:28 configure qemu-guest-agent:amd64 1:2.11+dfsg-1ubuntu7.20 <none>
2019-11-14 06:58:28 status unpacked qemu-guest-agent:amd64 1:2.11+dfsg-1ubuntu7.20
2019-11-14 06:58:28 status unpacked qemu-guest-agent:amd64 1:2.11+dfsg-1ubuntu7.20
2019-11-14 06:58:28 status unpacked qemu-guest-agent:amd64 1:2.11+dfsg-1ubuntu7.20
2019-11-14 06:58:28 status half-configured qemu-guest-agent:amd64 1:2.11+dfsg-1ubuntu7.20
2019-11-14 07:00:58 trigproc systemd:amd64 237-3ubuntu10.29 <none>
2019-11-14 07:00:58 status half-configured systemd:amd64 237-3ubuntu10.29
2019-11-14 07:01:23 status installed systemd:amd64 237-3ubuntu10.29
2019-11-14 07:01:23 trigproc man-db:amd64 2.8.3-2ubuntu0.1 <none>
2019-11-14 07:01:23 status half-configured man-db:amd64 2.8.3-2ubuntu0.1
2019-11-14 07:01:24 status installed man-db:amd64 2.8.3-2ubuntu0.1

I tried to identify the culprit package downgrading the packages, to no
avail..

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https://bugs.launchpad.net/bugs/1852903

Title:
  systemd Caught <SEGV>, dumped core

Status in systemd package in Ubuntu:
  New

Bug description:
  Several days ago an ubuntu 18.04 in ec2 env updated systemd and udev to 237-3ubuntu10.31
  This caused systemd to segfault and stop receiving any systemctl command (they timeout).

  [  198.482652] systemd[1]: segfault at 50 ip 00005630ddd60200 sp 00007ffc9c3ea890 error 4 in systemd (deleted)[5630ddcc1000+14e000]
  [  278.664729] systemd-journald[451]: Failed to send WATCHDOG=1 notification message: Connection refused
  [  368.462136] systemd-journald[451]: Failed to send WATCHDOG=1 notification message: Transport endpoint is not connected
  [  458.496689] systemd-journald[451]: Failed to send WATCHDOG=1 notification message: Transport endpoint is not connected

  I downgraded to 237-3ubuntu10.29 to no avail.
  Then I downgraded to 237-3ubuntu10:
  apt install udev=237-3ubuntu10 systemd=237-3ubuntu10 systemd-sysv=237-3ubuntu10 libsystemd0:amd64=237-3ubuntu10 libudev1:amd64=237-3ubuntu10 libnss-systemd:amd64=237-3ubuntu10

  and that did not help either.
  The machine is unusable at the moment.

  Attaching coredump of systemd (version 237-3ubuntu10.31)

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