[lvm-devel] lvcreate hangs forever and udev work timeout

[Eric Ren]

Hi,

> Since the /dev/dm-x has been created, I don't understand what it waits
> udev to do?
> Just waits udev rules to create device symbol links?

Although the /dev/dm-26 is visible, but the device seems not ready in kernel.

[root at iZuf6dbyd7ede51sykedamZ ~]# dmsetup udevcookies
Cookie       Semid      Value      Last semop time           Last change time
0xd4d0b57    225214464  2          Fri Apr 12 17:33:14 2019  Fri Apr
12 17:33:14 2019

[root at iZuf6dbyd7ede51sykedamZ ~]# dmsetup info /dev/dm-26
Device dm-26 not found
Command failed.

[root at iZuf6dbyd7ede51sykedamZ ~]# ls -l /dev/dm-26
brw-rw---- 1 root disk 252, 26 4月  12 17:33 /dev/dm-26

Regards.