How System Requests Work and How to Add Your Own SysReq (snee.la)

submitted 5 months ago by ABasilPlant@lemmy.world to c/linux@lemmy.ml

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I needed to add a custom System Request (Sys Req or SysRq) to a linux kernel some time ago. While doing so, I dug deep into how it works and I thought I’d make a quick post about it. Here is a good SuperUser answer about what a SysRq is. You may also know about SysRq via REISUB. This post has three parts: how to raise a SysRq, how SysRq works (looking into kernel code), and how to add your own SysRq.

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[-] WarmApplePieShrek@lemmy.dbzer0.com 3 points 5 months ago

No one knows what SysRq was meant for.

this post was submitted on 11 Jun 2024

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