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Checkpoint/Restore In Userspace (CRIU) (pronounced kree-oo, /kriu/), is a software tool for the Linux operating system. Using this tool, it is possible to freeze a running application (or part of it) and checkpoint it to persistent storage as a collection of files.
After recompiling a kernel binary image from source code, a kernel panic while booting the resulting kernel is a common problem if the kernel was not correctly configured, compiled or installed. [8] Add-on hardware or malfunctioning RAM could also be sources of fatal kernel errors during start up, due to incompatibility with the OS or a missing ...
In the event of a kernel crash, kdump preserves system consistency by booting another Linux kernel, which is known as the dump-capture kernel, and using it to export and save a memory dump. As a result, the system boots into a clean and reliable environment instead of relying on an already crashed kernel that may cause various issues, such as ...
The feature is controlled both by a compile-time option in the kernel configuration, CONFIG_MAGIC_SYSRQ, and a sysctl kernel parameter, kernel.sysrq. On newer kernels (since 2.6.12 [ 7 ] ), it is possible to have more fine-grained control over how the magic SysRq key can be used. [ 8 ]
The original version of Squashfs used gzip compression, although Linux kernel 2.6.34 added support for LZMA [11] and LZO compression, [12] Linux kernel 2.6.38 added support for LZMA2 compression (which is used by xz), [13] Linux kernel 3.19 added support for LZ4 compression, [14] and Linux kernel 4.14 added support for Zstandard compression.
Linux kernel 5.10, released in December 2020, included the new on-disk format XFS v5. This was a hard break, since the deprecated XFS v4 can not be converted to XFS v5. Data on partitions formatted with XFS v4 has to be backed up to another partition or media in order to restore it after formatting the old partition with XFS v5, which ...
Related: Keith Urban Honors Wife Nicole Kidman for Her Support amid Past 'Addictions' and Rehab: 'She Chose Love' “She hears it as a love song and it finished and she just looks at me, she goes ...
As the Linux kernel matured, the size of the kernels generated by users grew beyond the limits imposed by some architectures, where the space available to store the compressed kernel code is limited. The bzImage (big zImage) format was developed to overcome this limitation by splitting the kernel over non-contiguous memory regions. [citation ...