[Xen-users] Xen shutdown fails to release DRBD device

[Valentin Vidic <Valentin.Vidic@xxxxxxxxx>]

Hi,

Any idea why would Xen occasionally fail to release the block
device on shutdown?

Aug 21 22:56:00 node1 root: /etc/xen/scripts/block-drbd: remove 
XENBUS_PATH=backend/vbd/6/51712
Aug 21 22:56:00 node1 kernel: [ 2222.278235] block drbd6: State change failed: 
Device is held open by someone
Aug 21 22:56:00 node1 kernel: [ 2222.278304] block drbd6:   state = { 
cs:Connected ro:Primary/Secondary ds:UpToDate/UpToDate r----- }
Aug 21 22:56:00 node1 kernel: [ 2222.278340] block drbd6:  wanted = { 
cs:Connected ro:Secondary/Secondary ds:UpToDate/UpToDate r----- }
Aug 21 22:56:00 node1 root: /etc/xen/scripts/block-drbd: Writing 
backend/vbd/6/51712/hotplug-error /etc/xen/scripts/block-drbd failed; error 
detected. backend/vbd/6/51712/hotplug-status error to xenstore.
Aug 21 22:56:00 node1 root: /etc/xen/scripts/block-drbd: 
/etc/xen/scripts/block-drbd failed; error detected.

It seems like /etc/xen/scripts/block-drbd is called a bit too early just
sometimes. This is Xen 4.8.4 with DRBD 8.9.10 from Debian stretch.

-- 
Valentin

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