[FEATURE REQUEST] Enable SysRq by default
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Triaged
|
Wishlist
|
Unassigned | ||
Bionic |
Triaged
|
Wishlist
|
Unassigned |
Bug Description
I propose to change the following kernel build options:
CONFIG_
CONFIG_
Or write
kernel.sysrq = 1
to /etc/systl.
It will enable full SysRq, and the combination
alt+SysRq+R,F will force oom_killer to kill the process which is using the most memory. It helps greatly in cases of system freezes, especially when a browser tab uses too much memory.
And sometimes it causes swapping, and if the swapping device input/output is slow, it makes the system freeze for a long time due to processor scheduler being busy.
ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: linux-generic 4.13.0.16.17
ProcVersionSign
Uname: Linux 4.13.0-16-generic x86_64
ApportVersion: 2.20.7-0ubuntu3.1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/
/dev/snd/
/dev/snd/
CurrentDesktop: XFCE
Date: Tue Oct 31 15:38:32 2017
HibernationDevice: RESUME=
InstallationDate: Installed on 2017-08-28 (64 days ago)
InstallationMedia: Xubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412)
MachineType: ASUS All Series
ProcFB: 0 radeondrmfb
ProcKernelCmdLine: BOOT_IMAGE=
RelatedPackageV
linux-
linux-
linux-firmware 1.169
RfKill:
SourcePackage: linux
UpgradeStatus: Upgraded to artful on 2017-09-16 (44 days ago)
dmi.bios.date: 03/10/2016
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 0801
dmi.board.
dmi.board.name: AM1I-A
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: Rev X.0x
dmi.chassis.
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.
dmi.modalias: dmi:bvnAmerican
dmi.product.family: ASUS MB
dmi.product.name: All Series
dmi.product.
dmi.sys.vendor: ASUS
Changed in linux (Ubuntu): | |
importance: | Undecided → Wishlist |
Changed in linux (Ubuntu Bionic): | |
status: | Confirmed → Triaged |
tags: | added: bionic |
https:/ /bugs.launchpad .net/ubuntu/ +source/ linux/+ bug/194676