How Tech - Systems Programming
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| Platform |  | Pricing | Freemium | Publishes | Daily |
|---|---|---|---|---|---|
| Issues | 110 | Founded | a year ago | Last Issue | 10 days ago |
| Active | |||||
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howtech.substack.comLatest Issues
Developing Kernel Drivers for Specific-Purpose Memory: Inside mempool_t
Every kmalloc() call is a promise the kernel might not keep.
Every kmalloc() call is a promise the kernel might not keep. Under memory pressure, GFP_ATOMIC allocations skip reclaim entirely — no writeback, no swap, no waiting — because the...
The Kernel Watches Itself: Inside Soft Lockup, Hard Lockup, and Hung Task Detection
A userspace watchdog answers a simple question: Is my application still running? It cannot answer a far more important one: Is the kernel itself still making forward progress? Once the scheduler stalls or a CPU stops servicing interrupts, u...
Implementing a Minimal Monolithic Kernel Module for Device Access
Part I — Article
Part I — Article
Building Kernel Modules that Safely Interact with User-Space through IOCTLs
Part I — Article
Part I — Article
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Authors
The writers behind this newsletter.
Over two decades work experience at Silicon Valley, USA, CANADA and INDIA. Seasoned Principal Engineer with experience in developing complex, high-performance software solutions with a focus on low level system and distributed systems.
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