[Talk Proposal] - Learning from Linux and building my own Kernel - Implementing Demand Paging and Copy On Write (COW)

[Ayushmaan Bora]

Hello Linux Kernel Meetup Group Bangalore,

This is Ayushmaan from Xeneva and I'm submitting a talk proposal on behalf of my partner Manas Kamal Choudhury.

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Proposed Talk Title : Implementing Demand Paging and COW: Lessons from tinkering around the Linux Kernel and implementing them in my own Kernel from scratch ‘Aurora’.

 Abstract :

 In operating system design, efficiency often comes down to a simple philosophy:

Never do today what you can put off until tomorrow. In this talk, I will share my experience that I’ve gained by tinkering with the Linux Kernel and implementing things such as - Demand Paging and Lazy Loading within Aurora, a custom kernel I am building from scratch for XenevaOS.

I will walk through how Aurora manages large executables by mapping them incrementally into virtual memory, using processor traps as the trigger to allocate physical frames only when accessed. A key focus will be the architectural challenge of tracking page metadata. I’ll discuss why I moved beyond simple virtual page marking to implement a dedicated physical page database - drawing direct inspiration from how the Linux kernel utilizes struct page for its 4KiB frames.

 By comparing my implementation of Copy-On-Write (COW) and file-backed page tracking in Aurora with established Linux paradigms, I aim to provide a "ground-up" perspective on memory management. This session is for anyone interested in how theoretical OS concepts translate into functional code and the practical trade-offs involved in building a memory subsystem from the floor up.

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 Preferred length of the talk 10+5Mins (Lightning Talk)

Topics Manas intends to cover : 

-Demand paging

-Lazy loading

-Copy-On-Write

-Inspirations from Linux to write Aurora's kernel

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A Short Bio of Manas - Manas Kamal Choudhury is a kernel enthusiast and passionate low-level programmer. He has been learning OSDev and tinkering with Linux since he was in 6th grade. In 2020, he started building his own kernel and is currently the lead developer and Co-Founder of XenevaOS, an independent operating system he is building from the ground up, featuring a custom-written kernel named 'Aurora'. His work includes but not limited to exploring the intricacies of memory management, hardware abstraction, and system-level optimization.

Our GitHub Repository - https://github.com/manaskamal/XenevaOS 

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Both Manas and I are keen on attending this event to connect with like-minded Kernel Enthusiasts from whom we can learn more! Thank you for considering.

Thanks & Regards

Ayushmaan Bora

Xeneva

[AKHILESH PATIL]

+++1

Sent from my iPhone

On 27-Mar-2026, at 11:30 PM, Ayushmaan Bora <bora.a...@gmail.com> wrote:



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[Uddhav Phatak]

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