0
Dynamic Kernel Module Support was created in 2003.
Wiki User
∙ 10y ago
Add your answer:
Earn +20 pts
Is it better to keep as many support modules in the kernel as possible?
It depends. Obviously the more you have in the kernel the less you will have for resident memory. This may improve performance if these modules are in use, or it might just take up memory if they are not active. With dynamic loadable modules the idea was to install the module in the resident kernel if it were required at run time rather than compiling them into the kernel. This way an admin can load and unload the modules at will, assuming they know when the modules will be in use.
How do you convert a C program into a Linux kernel module?
Quick Answer: You don't. Long Answer: It will need a fundamental change before you can have a module that does anything similar. Kernel modules don't have the same purpose as programs. Kernel Modules are meant for device support and similar things. More than likely you don't actually want to move the program to kernel space.
What command can you use to remove a loaded kernel module?
modprob
Give an example of modular monolithic kernel?
Modular monolithic kernel example is Linux.don't need to confuse on monolithic and modular kernel. if we need to divide a single module of kernel in separate module to make handle easy we can do at the configure time of kernel but these kernel module having only in kernel space.Monolithic Kernel- single binary file- all drivers include in kernel itself.Modular kernel- Multiple files for kernel- Drivers can be loaded or unloaded into kernel using modprob command, see man page of lsmod, modprob etc when- Almost all drivers are build and linked against kernelactual mean of modular kernel in linux :some part of the system core will be located in independent files called modules that can be added to the system at run time. Depending on the content of those modules as1. only loading drivers if a device is actually found2. only load a filesystem if it gets actually requested3. only load the code for a specific (scheduling/security/whatever) policy when it should be evaluatedThose modules are still running in the kernel space and not in user space, so the kernel architecture is still monolithic.
What is a kernel module explain the life cycle of Linux kernel module?
A kernel module is a piece of the kernel that is not built as part of the kernel. This is largely to keep the kernel from having to initialize and run components it does not need. By far the most common application of the loadable kernel modules is device drivers. If you have an nVidia card you likely won't need, for example, and Intel or AMD/ATI drivers loaded, but you *might* want Nouveau. This allows the kernel to be smaller and more memory efficient, while still providing all the needed services required for the hardware on your computer. The "life cycle" is usually something like, in the case of devce drivers. 1. The kernel catalogues all your hardware by probing all the buses. 2. Udev goes through everything the kernel has noticed and, through rulesets, determines what drivers to probe into the kernel and what permissions and nodes need to be created for device files in /dev. 3. The module should, by this point, have been loaded and run, initializing whatever hardware it supervises, and you use your computer. MOST device drivers don't get unloaded. They simply run for the whole time the system is up in case you need them, which in most cases you do. They can be unloaded, but often even after the hardware is disconnected, udev might notice, but still keep the driver loaded and simply adjust /dev to reflect the device removal. In cases of non-device drivers, it is often more like this: 1. The user or a program with sufficient privileges realizes they need some specific service not built into the kernel. The user will usually issue the command "modprobe" with the module they need then proceed with their work. Software make make some system calls or some API calls to get a module loaded into the kernel for it so it can work, this is often what occurs with userspace filesystems: They immediately request that the fuse driver get loaded. 2. Whatever the user or software need to do gets done. 3. Often the module stays loaded like device drivers, but a user may issue "rmmod" to unload the driver if they are concerned about memory consumption. Pretty much the only "common" time a module gets unloaded is if a new version of the module is installed. Thus you'd rmmod and modprobe the new module, but most times this use case won't even work (Most modules are updated as part of a kernel upgrade and therefore the kernel would reject the module as an "API mismatch.") For most hardware this isn't really much of an issue. For video drivers, usually proprietary ones, it is, and you'll have to reboot to get the use of the new driver, one of the only two cases where restarting Linux might be "necessary," the other being a kernel upgrade.
Which is the command that adds or removes modules from the Linux kernel?
modprobe module_name inserts a modulermmod module_name removes a module
Which module displays list of users on boot in Linux?
This isn't really a module. In Linux a module is something you load into the kernel or into an application to extend their capabilities. The X client that displays a user list for login purposes is called a "display manager."
When was Something Wild - module - created?
Something Wild - module - was created in 1996.
When was Apache Rampart module created?
Apache Rampart module was created in 2006.
Can you put kernel in a sentence?
In this case, you will need to recompile the kernel for dhcp support.Meanwhile, a nice solid 2.2.x kernel for us, yes indeed.Kernel panic once is does see more memory?His dense and friendly comments have guided many programmers on the linuxkernel mailing list.I am trying to find the tell all instructions for recompiling a new kernel for rh5.2 ( mandrake 5.3 ).The 2.0.x kernel module doesn't support file transfers and there is no module available for the 2.4.x kernels.Kernel config.For two years, we have both been taking apricot kernels daily.Compile a new kernel for your rescue disk w / nfs included.They were running a 2.0.x kernel with smp enabled on thing; which was never a good idea.Kernel 2.4.x need a newer version of the modutils package.Meat mains include interesting offerings such as minced lamb with parsley, pinekernels & onions or whole quail seasoned with coriander.You shouldn't have to actually configure the kernel with joystick support tho, you just need that header file.The 2.6.x kernels have no special device for handling ipsec packets.Kernel patch to allow the existing bridge code to work inside iptables.So you will need to get into rebuilding the kernel and ( probably ) adding extra bits of software.We use a gaussian kernel with a covariance matrix equal to that of the original data set, , ie.Kernel 2.6.x, better support for wireless extensions and support for wpa.Keep in mind that many of these things are still changing in the form of patches and in the newer 2.1.x kernels.Kernel level midi input means that from midi trigger to audio output will be even faster than before.
What UNIX file that contains instructions for performing a specific task such as reading data from and writing data to a hard drive?
kernel module
Does c and c plus plus support static or dynamic binding?
Yes and no. Static vs dynamic binding is not a C or C++ language issue; it is a linker issue. If you link with a .lib file that contains stubs for run-time loading, then the called routine will not be loaded until it is invoked, and it will not be made a part of the load module.
