Bug#986720: systemd: lvm links missing - udev fails parsing dmsetup splitnames

[Sam Eiderman]

Package: systemd
Version: 241-7~deb10u4
Severity: important

Dear Maintainer,

I'm using libguestfs, which creates a VM images from the packages in my  
debian buster docker.

Very rarely, libguestfs fails detecting one of the LVM volumes it's  
inspecting.

More information on mailing list here:

https://marc.info/?l=libguestfs&m=161762331515987&w=2

The problem is that systemd/udev fails collecting the output of "dmsetup  
splitnames".

This bug was also mentioned here:

https://github.com/systemd/systemd/issues/18190

After I build systemd v248 from source - the problem goes away.

Probably a backport is needed.

Sam

-- Package-specific info:

-- System Information:
Debian Release: 10.4
   APT prefers stable-updates
   APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 5.7.17-1rodete5-amd64 (SMP w/6 CPU cores)
Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE,  
TAINT_UNSIGNED_MODULE
Locale: LANG=C, LC_CTYPE=C.UTF-8 (charmap=UTF-8), LANGUAGE=C (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: unable to detect

Versions of packages systemd depends on:
ii  adduser          3.118
ii  libacl1          2.2.53-4
ii  libapparmor1     2.13.2-10
ii  libaudit1        1:2.8.4-3
ii  libblkid1        2.33.1-0.1
ii  libc6            2.28-10
ii  libcap2          1:2.25-2
ii  libcryptsetup12  2:2.1.0-5+deb10u2
ii  libgcrypt20      1.8.4-5
ii  libgnutls30      3.6.7-4+deb10u4
ii  libgpg-error0    1.35-1
ii  libidn11         1.33-2.2
ii  libip4tc0        1.8.2-4
ii  libkmod2         26-1
ii  liblz4-1         1.8.3-1
ii  liblzma5         5.2.4-1
ii  libmount1        2.33.1-0.1
ii  libpam0g         1.3.1-5
ii  libseccomp2      2.3.3-4
ii  libselinux1      2.8-1+b1
ii  libsystemd0      241-7~deb10u4
ii  mount            2.33.1-0.1
ii  util-linux       2.33.1-0.1

Versions of packages systemd recommends:
ii  dbus            1.12.20-0+deb10u1
ii  libpam-systemd  241-7~deb10u4

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

Versions of packages systemd is related to:
pn  dracut           <none>
ii  initramfs-tools  0.133+deb10u1
ii  udev             241-7~deb10u4

-- Configuration Files:
/etc/systemd/journald.conf changed [not included]
/etc/systemd/logind.conf changed [not included]
/etc/systemd/networkd.conf changed [not included]
/etc/systemd/resolved.conf changed [not included]
/etc/systemd/sleep.conf changed [not included]
/etc/systemd/system.conf changed [not included]
/etc/systemd/timesyncd.conf changed [not included]
/etc/systemd/user.conf changed [not included]

-- no debconf information