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printk is a C function from the Linux kernel interface that prints messages to the kernel log. [1] It accepts a string parameter called the format string , which specifies a method for rendering an arbitrary number of varied data type parameter(s) into a string. [ 1 ]
The Linux kernel printk function supports a number of ways to display kernel structures using the generic % p specification, by appending additional format characters. [23] For example, % pI4 prints an IPv4 address in dotted-decimal form. This allows static format string checking (of the % p portion) at the expense of full compatibility with ...
PREEMPT_RT was a set of patches for the Linux kernel which implement both hard and soft real-time computing capabilities. [1] On September 20, 2024, PREEMPT_RT was fully merged and enabled in mainline Linux on the supported architectures x86, x86_64, RISC-V and ARM64. [2]
Even after the system has fully booted, the kernel may occasionally produce further diagnostic messages. Common examples of when this might happen are when I/O devices encounter errors, or USB devices are hot-plugged. dmesg provides a mechanism to review these messages at a later time.
The Linux kernel is a free and open source, [11]: 4 Unix-like kernel that is used in many computer systems worldwide. The kernel was created by Linus Torvalds in 1991 and was soon adopted as the kernel for the GNU operating system (OS) which was created to be a free replacement for Unix.
In operating systems, a giant lock, also known as a big-lock or kernel-lock, is a lock that may be used in the kernel to provide concurrency control required by symmetric multiprocessing (SMP) systems.
A Samsung Galaxy A02s booted into recovery mode. The Android recovery mode is a mode of Android used for installing updates and wipe data. [1] [2] It consists of a Linux kernel with ramdisk on a separate partition from the main Android system.
The following pages discuss essentially the same topic of format string and its implementations: fwprintf, printf, scanf, vwprintf, printk, swprintf, wprintf. I propose to cleanup these pages by removing the material that fails WP:NOTMANUAL and by merging the remains into Format string . 1exec1 ( talk ) 21:35, 8 October 2011 (UTC) [ reply ]