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@kernellogger@fosstodon.org
2025-04-23 16:13:42

'"[…] Suppose you compile an #eBPF program on #kernel version 5.3, but it fails to run on 5.4.
Why? Because each kernel version ships with its own kernel headers, which define structs and memory layouts. […]
So if a certain struct field […] sits at a different offset in another OS or ke…

Why Does My eBPF Program Work on One Kernel but Fail on Another?
How to Build Truly Portable eBPF Programs

@fell@ma.fellr.net
2025-05-23 17:56:11

Linux is when your computer doesn't boot, you think it's a kernel bug, you spend half the day troubleshooting, you identify an actual hardware defect, you go out and buy new hardware, and then you find out it actually was a kernel bug all along.
#linux #kernel

@kernellogger@fosstodon.org
2025-04-11 05:12:47

'"[…] I had always assumed the shell used the shebang as a hint, but that’s incorrect! This functionality is actually handled directly by the #Linux #Kernel. […]"'

Demystifying the #! (shebang): Kernel Adventures
Clarifying the shebang (#!) mechanism: A step-by-step look using strace and kernel code shows how Linux handles script execution directly, revealing the shell isn't involved initially.

@kernellogger@fosstodon.org
2025-04-20 09:27:42

With the release of #Linux 6.13.12[1] the 6.13.y #LinuxKernel series is now considered end-of-life and "everyone should move to the 6.14.y #kernel branch"[2].
[1] in parallel with 6.14.3 and …