Tags

eep hungry keep foolish
arm64

stack memory corruption trigger spinlock lockup

栈内存被写坏触发了系统死锁

pagecache data corrupted

pagecache页面数据被写坏

synchronous abort

内存硬件错误触发的系统异常

arm64 FIQ

arm64架构FIQ中断

拷贝大文件时系统异常

dts cma配置不当引起的panic

内核浮点支持

arm64 arch specific

wireless

wpa/wpa2 四步握手过程

wireless dictionary brutal hacking

kpatch

实时补丁框架

A rough patch for live patching

live patching

实时补丁框架

A rough patch for live patching

x86

kvm protect guest memory

kvm保护虚拟机内存

x86 nmi

kernel space processing

Linux x86 ORC 栈回溯

The Linux x86 ORC Stack Unwinder

sched

sched domain & group

调度域和调度组

完全公平调度

CFS

Per-Entity Load Tracking

调度实体负载跟踪

kvm

kvm gpa to hva

内存虚拟化之地址转换

kvm protect guest memory

kvm保护虚拟机内存

Virtualization Overview

虚拟化概述

cpu

CPU Isolation

CPU隔离

内存屏障

memory barriers

CPU Topology

cpu 拓扑

debug

拷贝大文件时系统异常

dts cma配置不当引起的panic

Kprobes

内核探针

kprobes

Kprobes

内核探针

atomic

riscv原子指令

riscv atomic instructions

原子实现

不同架构原子实现

nmi

x86 nmi

kernel space processing

trace

perf introduction

perf原理与应用

ftrace原理与实现

Ftrace Principle and Implementation

real time

Preempt-RT 优先级继承

Priority Inheritance

内核实时性

preempt-rt

riscv

riscv PMP内存保护机制

riscv pmp momery mechanism

riscv mmu 介绍

riscv mmu instroduction

riscv plic中断控制器

riscv plic

riscv原子指令

riscv atomic instructions

riscv异常处理流程

riscv kernel handle exception

opensbi 启动流程

fw_base.S 和 sbi_init代码分析

riscv相关组件编译

qemu启动riscv镜像

riscv内核启动

riscv内核启动早期代码走读

fs

文件系统扩展属性

fs xattr

time

系统时间慢于世界时间

System time is slower than real-world time

mips

系统时间慢于世界时间

System time is slower than real-world time

qemu

opensbi 启动流程

fw_base.S 和 sbi_init代码分析

riscv相关组件编译

qemu启动riscv镜像

network

网络协议栈知识点

kernel network protocol

memory

kvm gpa to hva

内存虚拟化之地址转换

malloc trigger oom

malloc分配大块内存触发oom

stack memory corruption trigger spinlock lockup

栈内存被写坏触发了系统死锁

kvm protect guest memory

kvm保护虚拟机内存

pagecache data corrupted

pagecache页面数据被写坏

slub calculate order

创建kmem cache时计算page order

synchronous abort

内存硬件错误触发的系统异常

内存屏障

memory barriers

拷贝大文件时系统异常

dts cma配置不当引起的panic

git

git常用命令

Common Git Commands

cache

高速缓存的别名和同名问题

cache alias and homonyms

mmu

riscv mmu 介绍

riscv mmu instroduction

iommu

iommu概述

kernel iommu

housekeeping

CPU Isolation

CPU隔离

fiq

arm64 FIQ

arm64架构FIQ中断

irq

arm64 FIQ

arm64架构FIQ中断

perf

perf introduction

perf原理与应用

slub

slub calculate order

创建kmem cache时计算page order

lock

stack memory corruption trigger spinlock lockup

栈内存被写坏触发了系统死锁

spinlock lockup suspected on cpu

一次喂cpld狗触发的死锁

security

kvm protect guest memory

kvm保护虚拟机内存

tty

async serial port recv data delayed

异步串口收包延迟问题

ebpf

using ebpf in embeded env

嵌入式环境使用ebpf

x86_64

kvm gpa to hva

内存虚拟化之地址转换

dma

dma & cma

dma misc knowledge points