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A loadable kernel module (LKM) is an executable library that extends the capabilities of a running kernel, or so-called base kernel, of an operating system. LKMs are typically used to add support for new hardware (as device drivers ) and/or filesystems , or for adding system calls .
All device drivers, file systems, etc still run in kernel mode, just like in a monolithic kernel (see hybrid kernel). And how exactly are Windows's loadable kernel drivers different from LKM? The fact that Windows doesn't call them "kernel modules" doesn't mean it doesn't have a similar concept.
lsmod is a command on Linux systems that lists each loadable kernel module that is loaded.. Example output from lsmod: . Module Size Used by af_packet 27392 2 8139too 30592 0 snd_cs46xx 96872 3 snd_pcm_oss 55808 1 snd_mixer_oss 21760 2 snd_pcm_oss ip6table_filter 7424 1 ip6_tables 19728 1 ip6table_filter ipv6 290404 22 xfs 568384 4 sis900 18052 5 libata 169920 1 pata_sis scsi_mod 158316 3 usb ...
A NetWare Loadable Module [1] [2] [3] (NLM) is a loadable kernel module (a binary code module) that can be loaded into Novell's NetWare operating system. NLMs can implement hardware drivers, server functions (e.g. clustering), applications (e.g. GroupWise ), system libraries or utilities.
In Windows Vista and later versions of Windows, the relocation of DLLs and executables is done by the kernel memory manager, which shares the relocated binaries across multiple processes. Images are always relocated from their preferred base addresses, achieving address space layout randomization (ASLR).
The term user space (or userland) refers to all code that runs outside the operating system's kernel. [2] User space usually refers to the various programs and libraries that the operating system uses to interact with the kernel: software that performs input/output, manipulates file system objects, application software, etc.
This category contains articles documenting various Linux kernel features. Most features in the Linux kernel can be compiled as loadable kernel modules, or can be statically linked into the kernel binary. For features that are bundled separately from the Linux kernel, please see Category:Third-party Linux kernel modules.
If the Linux kernel community had to exist somewhere physically, it would call the Linux Kernel Mailing List home. The LKML functions as the central place where Linux developers around the world share patches, argue about implementation details, and discuss other issues. [1] The official releases of the Linux kernel are indicated by an email to ...