[lvm-devel] lvcreate hangs forever and udev work timeout
Zdenek Kabelac
zkabelac at redhat.com
Fri Apr 12 15:17:24 UTC 2019
Dne 12. 04. 19 v 17:03 Eric Ren napsal(a):
> Hi,
>
>> Although the /dev/dm-26 is visible, but the device seems not ready in kernel.
>
> Sorry, it's not:
>
> [root at iZuf6dbyd7ede51sykedamZ ~]# dmsetup info /dev/dm-26
> Device dm-26 not found
> Command failed.
>
> [root at iZuf6dbyd7ede51sykedamZ ~]# dmsetup info /dev/dm-25
> Name: vg0-21
> State: ACTIVE
> Read Ahead: 256
> Tables present: LIVE
> Open count: 0
> Event number: 0
> Major, minor: 252, 25
> Number of targets: 1
> UUID: LVM-PIFRRbKrhSqE5j6Q8jfk1qJJ1TNFPUI2SzDoe3z1azKH6HAOPsleizy3LozEMJus
>
> [root at iZuf6dbyd7ede51sykedamZ ~]# dmsetup status | grep vg0-22
> vg0-22: 0 20971520 thin 274432 20971519
>
> [root at iZuf6dbyd7ede51sykedamZ ~]# dmsetup info vg0-22
> Name: vg0-22
> State: ACTIVE
> Read Ahead: 256
> Tables present: LIVE
> Open count: 0
> Event number: 0
> Major, minor: 252, 26
> Number of targets: 1
> UUID: LVM-PIFRRbKrhSqE5j6Q8jfk1qJJ1TNFPUI2YMnwPdLNF3JggAzXGwaFujcPePyOAeqd
>
Hi
Hmm would it be possible that associated thin pool would be in some erroneous
condition - i.e. out-of-space - or processing some resize ?
This likely could result into some significant processing delay ?
Since you are using very ancient lvm2 (2.02.130) we have heavily improved
logic for such pools over the time...
Zdenek
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