AI Infrastructure & Distributed Storage Researcher

Recent Posts

• Preventing Segfaults in Shared Memory IPC: Using Semaphores to Signal Data Readiness

  Aug 23, 2026clinuxipcsystemsprogramming

  mmap() succeeding doesn't mean the data behind it is valid. A close look at the race where a reader touches shared memory before the writer is done, and how a semaphore closes it.

• Safe Length-Based Data Sharing in C

  Aug 22, 2026csystemsprogrammingmemorysecurity

  Don't ask where the '\0' is. Ask how many bytes are valid. A progressive look at why strcpy() fails on shared data, and how length-delimited buffers fix it.

• Saving the state of an interactive container

  Sep 27, 2024

  Sometimes we need to start a Docker container in an interactive shell for testing, but an interrupt destroys everything. Here is how to save its state.

• Install OpenCV 4.5 on Ubuntu 22.04

  Sep 27, 2024

  OpenCV installation can be tricky on Linux. A correct process for building OpenCV 4.5 from source, for both Python and C++.

• Real-time Disk Size Expanding in a Linux virtual machine

  Jul 5, 2024

  I was compiling the Linux kernel in a VM with a full 20GB logical volume. Here is how to expand the disk without losing your data, step by step.

• CAFE BABE, if you know, you know. JVM enthusiast.

  Dec 30, 2023javalinuxprogrammingreverse

  Each program has a magic word in its machine code that defines its identity. For Java class files, it's CAFE BABE, and the story behind it is great.

• How your program's functions are handled in memory?

  Dec 29, 2023linuxcx86memory

  Because I always forget how the kernel handles a program's functions in the call stack, I wrote it down. Function prologue, %rbp, %rsp, and calling conventions.

• What the heck is locality of reference, and why will I waste brain cells bytes to know it?

  Sep 25, 2023softwareengineeringcpusoftwaredevelopment

  Locality of Reference is a critical Computer Science topic that helps improve your software's performance, if you're aware of it.

• How the heck a C program is compiled from human comprehensible language to 0's and 1's

  Feb 28, 2023

  You may have wondered how programming language lexemes are turned into a series of 0's and 1's, aka binary files. Let's discover that together, step by step.

• Why the heck the _state variable in task_struct structure is 4 bytes

  Feb 28, 2023

  The Linux process state needs six flags, so why is it stored in an unsigned integer with 2^32 possible values? The answer is in READ_ONCE/WRITE_ONCE.

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