lvm2 deadlock

Hi,

Possible lvm2 command deadlock scenario:

crowsnest [12:15:47] /run/lvm # fuser //run/lock/lvm/*
/run/lock/lvm/P_global: 17231
/run/lock/lvm/V_lvm: 16087 17231

crowsnest [12:15:54] /run/lvm # ps axf | grep -E '16087|17231'
24437 pts/1    S+     0:00  |       \_ grep --colour=auto -E 16087|17231
16087 ?        S      0:00  |       |       \_ /sbin/lvcreate -kn -An -s 
-n fsck_cerberus /dev/lvm/backup_cerberus
17231 ?        S      0:00  |           \_ /sbin/lvs --noheadings 
--nameprefixes

crowsnest [12:17:40] /run/lvm # dmsetup udevcookies
Cookie       Semid      Value      Last semop time           Last change 
time
0xd4d2051    10         1          Thu May 30 02:34:05 2024  Thu May 30 
02:32:22 2024

This was almost 10 hours ago.

crowsnest [12:17:44] /run/lvm # dmsetup udevcomplete 0xd4d2051
DM_COOKIE_COMPLETED=0xd4d2051
crowsnest [12:18:43] /run/lvm # ps axf | grep -E '16087|17231'
27252 pts/1    S+     0:00  |       \_ grep --colour=auto -E 16087|17231
crowsnest [12:18:45] /run/lvm #

Allows progress again.

I do not know how to troubleshoot this.

Kernel version 6.4.12 (in process of upgrading to 6.9.3).

crowsnest [12:19:47] /run/lvm # udevadm --version
254

aka systemd-utils-254.10

lvm2-2.03.22

Kind regards,
Jaco