user space

(redirected from Userspace)

user space

(1) The memory allocated to applications in a computer that uses an operating system like Linux. Such operating systems keep their kernel in one area of memory (kernel space) with user applications in another. The system prevents the user's applications in user space from accessing any instructions in kernel space.

Programs in user space are typically swapped to and from disk when other programs take precedent (see virtual memory); however, all or most of the kernel resides in physical memory at all times.

(2) A designated part of a website that is set up for users to download files or contribute material.
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The attack allows malicious userspace processes to read kernel memory and malicious code in guests to read hypervisor memory.
Communication between the PRU and userspace programs is carried out by a privileged userspace process; a functional diagram outlining the implementation is given in Figure 4.
In NGI s redundant and distributed architecture, 6WINDGate provides fast userspace services directly on the network edge (i.
A discussion of processes in userspace follows, and buffer function and structure are elucidated along with a description of multiprocess files and interprocess communication.
The vulnerability, described byLookout Mobile Securityas a failure to restrict kernel address space mapped to userspace via /dev/exynos-mem, is present in devices that use Samsung's 4210 and 4412 Exynos processors.
The client applications exist in three main versions: the standalone application, the core module of the operating system and Filesystem in Userspace (FUSE).
15] IEEE 1394 userspace library, disponible en: http://sourceforge.
The nProbe and fprobe were lacking far behind ipt_netflow even when the PF_RING sockets were used because these tools do the packet analysis in userspace which requires time-consuming context switches.
Userspace auto-tuning for TCP ow control in computational grids, Computer Communications, 27(14) 1346-1374.
MINIX4RT defines several Userspace Data Structures to operate on RT-Semaphores as described in the following sections.
And with new support for userspace processes, developers can instrument code written in high level languages such as Python, database applications, and more.
net - File system in Userspace, Accessed on: 2009-04-10