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To avoid any data loss return values of fsync() should be checked because when performing I/O operations that are buffered by the library or the kernel, errors may not be reported at the time of using the write() system call or the fflush() call, since the data may not be written to non-volatile storage but only be written to the memory page cache.
On Linux, a kernel panic causes keyboard LEDs to blink as a visual indication of a critical condition. [14] As of Linux 6.10, drm_panic was merged allowing DRM drivers to support drawing a panic screen to inform the user that a panic occurred. This allows a panic screen to appear even when a display server was running when the panic occurred.
This article documents the version history of the Linux kernel.. Each major version – identified by the first two numbers of a release version – is designated one of the following levels of support:
A kernel is a component of a computer operating system. [1] A comparison of system kernels can provide insight into the design and architectural choices made by the developers of particular operating systems.
The kerneloops software can collect and submit kernel oopses to a repository such as the www.kerneloops.org website, [7] which provides statistics and public access to reported oopses. A simplified crash screen was introduced in Linux 6.10, similar to the Blue Screen of Death on Windows. [8]
systemd tracks processes using the Linux kernel's cgroups subsystem instead of using process identifiers (PIDs); thus, daemons cannot "escape" systemd, not even by double-forking. systemd not only uses cgroups, but also augments them with systemd-nspawn and machinectl , two utility programs that facilitate the creation and management of Linux ...
The Linux kernel also exposes the nomerges sysfs parameter as a scheduler-agnostic configuration, making it possible for the block layer's requests merging logic to be disabled either entirely, or only for more complex merging attempts. [2]
F2FS (Flash-Friendly File System) is a flash file system initially developed by Samsung Electronics for the Linux kernel. [ 5 ] The motive for F2FS was to build a file system that, from the start, takes into account the characteristics of NAND flash memory -based storage devices (such as solid-state disks , eMMC , and SD cards), which are ...