This tag is for questions about the internals of the Linux kernel itself - particularly about writing code that runs within the context of the kernel (like kernel modules or drivers).
ip link shows this: [root@0-25-90-68-79-4a log]# ip link 1: lo: <LOOPBACK,UP,LOWER_UP&…
linux networking linux-kernel virtual-machine ifconfigCan anyone explain me, What is IOCTL? What is it used for? How can I use it? Why can't I …
linux linux-kernel driver linux-device-driver ioctlI'm trying to set iptable rules, and I got following error message when I use iptable : iptables v1.4.14: can't initialize …
linux-kernel debian iptablesI know all the discussions about why one should not read/write files from kernel, instead how to use /proc …
c file-io linux-kernel kernel-moduleI've googled around and found most people advocating the use of kmalloc, as you're guaranteed to get contiguous physical blocks …
c linux-kernel kmalloc vmallocWhat is the difference between them? I know that u-boot needs a kernel in uImage format. The system I use …
linux-kernel embedded-linux u-bootI'm outside gdb's target executable and I don't even have a stack that corresponds to that target. I want to …
linux assembly gdb x86 linux-kernelCan anyone explain what the target "oldconfig" does exactly in the Linux kernel makefile? I see it referenced in some …
linux makefile linux-kernelIn Linux, supposing a thread's pid is [pid], from the directory /proc/[pid] we can get many useful information. For …
linux linux-kernel scheduled-tasks scheduling schedulerI have RedHat Enterprise Linux Server 7, and I downloaded the linux kernel version 4.12.10 which I am trying to compile but …
module linux-kernel openssl redhat