Bug 1267743

Summary:	bind mounting /dev does not mount devpts
Product:	Red Hat Enterprise Linux 7	Reporter:	Brent Baude <bbaude>
Component:	docker	Assignee:	Lokesh Mandvekar <lsm5>
Status:	CLOSED CURRENTRELEASE	QA Contact:	atomic-bugs <atomic-bugs>
Severity:	high	Docs Contact:
Priority:	unspecified
Version:	7.2	CC:	lsm5, mpatel
Target Milestone:	rc	Keywords:	Extras
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	docker-1.8.2-5.el7	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:
Clones:	1267975 (view as bug list)		Environment:
Last Closed:	2015-11-17 22:54:07 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 Brent Baude 2015-09-30 20:20:24 UTC

With current docker versions, when you bind mount /dev from the host to /dev in the container (i.e. -v/dev:/dev), it does not also mount devpts.  Therefore, the host becomes unusable because the virtual ptys are no longer able to start.  This is a critical bug.

These patches remedy this bug:

  * https://github.com/docker/docker/pull/16639
  * https://github.com/opencontainers/runc/commit/c9d58506297ed6c86c9d8a91d861e4de3772e699

Lokesh built a scratch build and we confirmed the problem is corrected.

Comment 2 Lokesh Mandvekar 2015-11-17 22:54:07 UTC

This version has been shipped already.