Bug#884454: systemd: systemd udev rule is not executed when removing - only when adding

[Hendrik Tews]

Package: systemd
Version: 235-3
Severity: important

Dear Maintainer,

on my system, systemd_wants udev rules get only executed when I
add devices, not when I remove them.

I have two udev rules

    ENV{PRODUCT}=="3/46d/101a/111", TAG+="systemd", ENV{SYSTEMD_WANTS}="aaa"
    ENV{PRODUCT}=="3/46d/101a/111", RUN+="/bin/bash -c '/bin/date +%%Y-%%m-%%d-%%H:%%M:%%S-RUN >> /tmp/log'"

The product ID belongs to my mouse. The aaa.service contains

    [Unit]
    Description=AAA

    [Service]
    Type=simple
    ExecStart=/bin/bash -c "/bin/date '+%%Y-%%m-%%d %%H:%%M:%%S AAA' >> /tmp/log"

When I unplug the mouse, I only see

    2017-12-15-11:40:54-RUN

in /tmp/log. When I plug the mouse, I see

    2017-12-15-11:41:22-RUN
    2017-12-15 11:41:22 AAA

as expected.

When removing the mouse, the only line in the syslog related to
aaa.service is

    Dec 15 11:40:54 cert systemd[1]: aaa.service: Collecting.


I report the problem here for SYSTEMD_WANTS, the same happens for
SYSTEMD_USER_WANTS. I would like to use the latter to run some
command in my X session when the mouse is added and removed.

Thanks for your attention,

Hendrik


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-- System Information:
Debian Release: buster/sid
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: amd64 (x86_64)
Foreign Architectures: armhf, arm64

Kernel: Linux 4.13.0-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages systemd depends on:
ii  adduser         3.116
ii  libacl1         2.2.52-3+b1
ii  libapparmor1    2.11.1-4
ii  libaudit1       1:2.8.1-2
ii  libblkid1       2.30.2-0.1
ii  libc6           2.25-3
ii  libcap2         1:2.25-1.2
ii  libcryptsetup4  2:1.7.5-1
ii  libgcrypt20     1.8.1-4
ii  libgpg-error0   1.27-5
ii  libidn11        1.33-2
ii  libip4tc0       1.6.1-2+b1
ii  libkmod2        24-1
ii  liblz4-1        0.0~r131-2+b1
ii  liblzma5        5.2.2-1.3
ii  libmount1       2.30.2-0.1
ii  libpam0g        1.1.8-3.6
ii  libseccomp2     2.3.1-2.1
ii  libselinux1     2.7-2
ii  libsystemd0     235-3
ii  mount           2.30.2-0.1
ii  procps          2:3.3.12-3
ii  util-linux      2.30.2-0.1

Versions of packages systemd recommends:
ii  dbus            1.12.2-1
ii  libpam-systemd  235-3

Versions of packages systemd suggests:
ii  policykit-1        0.105-18
pn  systemd-container  <none>

Versions of packages systemd is related to:
pn  dracut           <none>
ii  initramfs-tools  0.130
ii  udev             235-3

-- Configuration Files:
/etc/systemd/logind.conf changed:
[Login]
HandleLidSwitch=ignore

/etc/systemd/system.conf changed:
[Manager]
LogLevel=debug


-- no debconf information