Bug 993562

Summary:	sysrq configuration not honoured
Product:	[Fedora] Fedora	Reporter:	Karel Volný <kvolny>
Component:	systemd	Assignee:	systemd-maint
Status:	CLOSED DUPLICATE	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	medium	Docs Contact:
Priority:	unspecified
Version:	19	CC:	johannbg, kdudka, lnykryn, msekleta, notting, plautrba, systemd-maint, vpavlin, zbyszek
Target Milestone:	---
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2013-09-12 19:39:30 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 Karel Volný 2013-08-06 07:50:17 UTC

Description of problem:
My machine just hanged on poweroff. As I had enabled sysrq before, I've tried to halt it via the magic key combos. Bad luck, the only thing I could do was sync.

Version-Release number of selected component (if applicable):
systemd-204-9.fc19.x86_64

How reproducible:
always

Steps to Reproduce:
1. # echo "kernel.sysrq = 1" > /etc/sysctl.d/sysrq.conf
2. reboot
3. $ cat /proc/sys/kernel/sysrq

Actual results:
16

Expected results:
1

Additional info:
https://fedoraproject.org/wiki/QA/Sysrq#How_do_I_enable_the_magic_SysRq_key.3F

Comment 1 Kamil Dudka 2013-08-14 14:04:40 UTC

You can use the following to work around the bug:

# cp /usr/lib/sysctl.d/50-default.conf /etc/sysctl.d/
# sed -i 's/kernel.sysrq = 16/kernel.sysrq = 1/' /etc/sysctl.d/50-default.conf

Comment 2 Karel Volný 2013-08-29 14:25:26 UTC

but there are multiple settings in that file, what if something changes in the future and the change will go unnoticed due to the local copy?

Comment 3 Lennart Poettering 2013-09-12 19:39:30 UTC


*** This bug has been marked as a duplicate of bug 1007150 ***