Created
February 5, 2021 17:42
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| # Oh come on! It's 2020! Stop freezing on OOM, you *clumsy penguin* ! | |
| kernel.sysrq = 244 | |
| # = 128+64+32+16 +4 | |
| # 256+128+64+32+16+8+4+2+1 | |
| # ^ ^ ^ ^ ^ ^ ^ ^ ^ | |
| # | | | | | | | | | | |
| # | | | | | | | | | 0 - disable every SysRq function. | |
| # | | | | | | | | `- 1 - enable every SysRq function. | |
| # | | | | | | | `--- 2 - enable control of console logging level | |
| # | | | | | | `----- 4 - enable control of keyboard (SAK, unraw) | |
| # | | | | | `------ 8 - enable debugging dumps of processes etc. | |
| # | | | | `-------- 16 - enable sync command | |
| # | | | `----------- 32 - enable remount read-only | |
| # | | `------------- 64 - enable process signals (term, kill, oom-kill) | |
| # | `----------------- 128 - allow reboot/poweroff | |
| # `--------------------- 256 - allow nicing of all RT tasks | |
| # of course, arch default is... 16. | |
| # which breaks the well-known Alt-SysRq-REISUB spell; I find that disgraceful. | |
| # HINT: use SysRq+F to unleash the reaper | |
| # | |
| # thanks to this guy --> https://superuser.com/a/1402025/58037 |
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Ubuntu 22.04 default:
176 = 128 + 32 + 16.