For example, on Linux systems, a web browser’s Flash plugin can be a particularly notorious resource hog, and Flash applications can easily occupy much of a system’s CPU and memory due to poor all-around impl
you might need to upgrade lsof. In addition, if you perform a distribution update to both the kernel and lsof, the updated lsof might not work until you reboot with the new kernel. 注意:lsof高度依赖于内核信息。
which can be used to boot a Linux kernel from the context of another kernel, bypass BIOS, and preserve the contents of the first kernel's memory that would otherwise be lost.
In Chapter 3, we discussed some of the top-level disk devices that the kernel makes available. In this chapter, we’ll discuss in detail how to work with disks on a Linux system. You’ll learn how to partition disks, create and maintain the filesystems that go inside disk partitions, ...
A kernel panic often lives up to its name, causing panic for the admin. But the good news is that all is not lost; there are steps you can take.So, first...
This behaviour can be modified bysetting the flag LOAD_EXEC in the file /etc/default/kexecto false. Note: After changing the flag, shutdown and boot the system for the change to take effect. How does Linux Kdump work? Kdump is a kernel crash dumping mechanism that allows you to save th...
Two other utilities for Linux, similar to top, offer an enhanced set of views and features: atop and htop. Most of the extra features are available from other utilities. For example, htop has many of abilities of the lsof command described in the next section. ...
Kernel Panic is probably one of the most fatal errors in Unix systems (like macOS) that makes the entire OS standstill. The error is often compared to a screen of death in other operating systems. Although it might seem like a complicated situation, you can try to fix the Kernel error on...
kernel.sysrq = 1 And as above run the command sysctl-p/etc/sysctl.conf to enable it in the current session. Common use of SysRq A common idiom to perform a safe reboot of a Linux computer which has otherwise locked up, is “Raising Elephants Is So Utterly Boring”, “Reboot Even If...
KDUMP in Clustered Systems Testing KDUMP Vmcore Capture Time Controlling which events trigger a Kernel Panic Background / Overview kexecis a fastboot mechanism that allows to boot a Linux kernel from the context of an already running kernel without going through the BIOS. Since BIOS checks at star...