Bug 1298363

Summary:	docker: Backport device maper deferred device deletion fix in 1.9
Product:	Red Hat Enterprise Linux 7	Reporter:	Vivek Goyal <vgoyal>
Component:	docker	Assignee:	Daniel Walsh <dwalsh>
Status:	CLOSED ERRATA	QA Contact:	atomic-bugs <atomic-bugs>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	7.3	CC:	lsm5, lsu, vgoyal
Target Milestone:	rc	Keywords:	Extras
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2016-03-31 23:23:14 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Vivek Goyal 2016-01-13 22:26:58 UTC

Description of problem:

Device mapper graphdriver deferred device deletion feature has a bug which I 
recently fixed upstream and will show up in 1.10. As we will be enabling deferred device deletion by default in 1.9, I think it is important to backport that fix in 1.9.

https://github.com/docker/docker/pull/19241

Version-Release number of selected component (if applicable):

1.9.1

How reproducible:


Steps to Reproduce:
1.
2.
3.

Actual results:


Expected results:


Additional info:

Comment 1 Daniel Walsh 2016-01-13 22:29:07 UTC

Could you open a pull request on the rhel7-1.9 branch.

Comment 2 Vivek Goyal 2016-01-13 22:30:48 UTC

Ok, will do

Comment 4 Daniel Walsh 2016-02-22 20:09:28 UTC

Did this ever happen, or not fixed until docker-1.10

Comment 5 Daniel Walsh 2016-02-22 20:10:08 UTC

Did this ever happen, or not fixed until docker-1.10

Comment 6 Vivek Goyal 2016-02-22 20:12:41 UTC

I think it got pulled into rhel 1.9.

https://github.com/projectatomic/docker/pull/65

Comment 7 Daniel Walsh 2016-02-23 13:49:31 UTC

Fixed in docker-1.9

Comment 9 Luwen Su 2016-03-18 08:36:09 UTC

I can only verify this by watching the log and the patch witin 
docker-1.9.1-23.el7.x86_64,

Starting docker daemon with
#docker daemon --storage-opt dm.use_deferred_removal=true --selinux-enabled --storage-opt dm.use_deferred_deletion=true -D

Trigger defer remove:
#docker run -ti --rm rhel7 /bin/bash
#docker run -ti -v /:/host rhel7 bash

exit the first container will trigger:
Deferred Deleted Device Count: 1

and after exit the second later, it will be to zero later

Comment 11 errata-xmlrpc 2016-03-31 23:23:14 UTC

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://rhn.redhat.com/errata/RHBA-2016-0536.html