#Linux kernel
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- Linux Kernel: Learning Along a Single Program Execution
- Linux context switching — context_switch, switch_mm, and switch_to
- task_struct and the process lifecycle
- The Linux scheduler: from runnable tasks to CPU time
- Signals and ptrace: From Asynchronous Notifications to Controlled Stops
- Virtual Memory: Understanding Page Tables, Page Faults, and TLB from a Single Memory Access Instruction
- VMA and Maple Tree: How Address Ranges Are Established, Changed, and Accessed Concurrently
- Physical Memory Management: Constraints on Allocation from Continuous Blocks
- Slab and kmalloc: Object Reuse, Space Retention, and Lifecycle
- Page Reclaim and Swap: How to Free Memory Without Losing Needed Data
- VFS: From Pathname to Open File
- Page Cache and I/O: Caching, Writeback, and Persistence
- Filesystem Implementation: Layout, Journaling, COW, and Recovery
- VFS Advanced: Lock Ownership, Persistent Updates, and Data Passing
- ZFS: Storage Pools, Transaction Groups, and Synchronous Write Recovery
- NFS: Consistency, State, and Recovery of Remote Files
- Temporary and Pseudo Filesystems: Data, Interfaces, and Resource Boundaries
- Interrupt Subsystem
- Clocks and Timers
- Time Management: Time Scales, Corrections, and Reading
- Locking Mechanisms and Memory Ordering
- RCU: Publication, Grace Periods, and Reclamation
- Synchronization Debugging: Dependencies, Races, and Stalls
- Network Protocol Stack Overview
- TCP/IP Protocol Stack
- Netfilter and BPF/XDP
- Virtual Networks, Routing, and Queues
- RDMA: Queues, Memory Registration, and Completion Semantics
- Block Device Layer
- NVMe and Storage
- eBPF Fundamentals
- eBPF Program Types
- Tracing and Debugging
- LSM and Access Control
- Kernel Hardening
- Crypto API and Storage Encryption
- Device Model
- PCIe and USB Driver Models
- DRM and Graphics
- IOMMU and DMA API
- Kbuild and Modules
- Debugging and Testing
- Live Patching
- Namespaces
- cgroup
- KVM Architecture
- KVM Memory and Device Virtualization
- QEMU and KVM Collaboration
- cpufreq and cpuidle
- Suspend and Wake-up