Bug 439497

Summary:	autofs hang on startup
Product:	Red Hat Enterprise Linux 5	Reporter:	Ragnar Kjørstad <bugzilla>
Component:	autofs	Assignee:	Ian Kent <ikent>
Status:	CLOSED ERRATA	QA Contact:	Brock Organ <borgan>
Severity:	low	Docs Contact:
Priority:	low
Version:	5.1	CC:	ikent, istvan+rhbugs, jmoyer, jolim, mgahagan
Target Milestone:	rc
Target Release:	---
Hardware:	x86_64
OS:	Linux
URL:	http://www.mail-archive.com/autofs@linux.kernel.org/msg06460.html
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2009-01-20 21:45:40 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Ragnar Kjørstad 2008-03-28 19:53:20 UTC

From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.1.13) Gecko/20080325 Fedora/2.0.0.13-1.fc8 Firefox/2.0.0.13

Description of problem:
When I start /etc/init.d/autofs it hangs forever.

Version-Release number of selected component (if applicable):
autofs-5.0.1-0.rc2.55

How reproducible:
Always


Steps to Reproduce:
1. Boot a headless system with no keyboard or mouse and with / as tmpfs
2. Start /etc/init.d/autofs start


Actual Results:
Autofs hangs

Expected Results:
Autofs should have started and bash should have returned to the prompt.

Additional info:
I'm not sure if the fact that the system is headless or that / is tmpfs is relevant.

However, as reported in http://www.mail-archive.com/autofs@linux.kernel.org/msg06460.html, replacing /dev/random with a symlink to /dev/urandom fixes the problem.

Comment 1 Ian Kent 2008-03-29 04:50:59 UTC

I haven't checked into this yet, thanks for the reminder.

Comment 2 RHEL Program Management 2008-06-02 20:11:32 UTC

This request was evaluated by Red Hat Product Management for inclusion in a Red
Hat Enterprise Linux maintenance release.  Product Management has requested
further review of this request by Red Hat Engineering, for potential
inclusion in a Red Hat Enterprise Linux Update release for currently deployed
products.  This request is not yet committed for inclusion in an Update
release.

Comment 3 Istvan Marko 2008-06-11 21:53:17 UTC

I am running into this as well. I believe the hangs are caused by the
calls to seed_random() which in turn tries to read /dev/random and
that hangs on entropy starved systems. Changing Patch66:
autofs-5.0.1-rc3-random-selection.patch to use /dev/urandom instead of
/dev/random is the easy fix. /dev/random is an overkill for this
anyway.

Comment 8 errata-xmlrpc 2009-01-20 21:45:40 UTC

An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on therefore solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHBA-2009-0178.html