Tags

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

wpa/wpa2 四步握手过程

wireless dictionary brutal hacking

实时补丁框架

A rough patch for live patching

实时补丁框架

A rough patch for live patching

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 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 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

e2000q cpufreq

phytium e2000q cpu 调频

CPU Isolation

CPU隔离

内存屏障

memory barriers

CPU Topology

cpu 拓扑

kfuzztest introduction

kfuzztest 原理与实践

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

内核探针

riscv原子指令

riscv atomic instructions

原子实现

不同架构原子实现

x86 nmi

kernel space processing

trace pagecache

跟踪pagecache处理流程

perf introduction

perf原理与应用

ftrace原理与实现

Ftrace Principle and Implementation

Preempt-RT 优先级继承

Priority Inheritance

内核实时性

preempt-rt

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

IOMAP的契约

EROFS iomap iter test

EROFS iomap 迭代数值的实测验证

EROFS graft iomap

EROFS 嫁接 iomap

EROFS trace read funcgraph

EROFS 跟踪读调用路径

EROFS Super Block

EROFS 超级块

EROFS flatdev and multidev mapping

EROFS 扁平块设备与多设备地址映射

EROFS trace mount blobdev

EROFS 跟踪blobdev多设备mount流程

EROFS dev subject

EROFS 设备专题

EROFS chunk-based file addresing

EROFS chunk-based 文件寻址

EROFS addressing the image file

EROFS 寻址镜像文件

EROFS on-disk layout

EROFS 磁盘镜像布局

EROFS two blobdevs vm test

EROFS 双blobdev虚拟机测试

EROFS Business Scenario

EROFS 业务场景

EROFS metabox

EROFS 元数据压缩

EROFS zip accel

EROFS 硬件解压加速

EROFS trace dedupe ishare reading-path

EROFS 跟踪 dedupe 与 ishare 读路径

EROFS 48-bit block address

EROFS 48比特块地址

EROFS trace fragment/ztailpacking reading-path

EROFS 跟踪 fragment/ztailpacking 读路径

EROFS dedupe

EROFS 去重

EROFS fragment and ztailpacking

EROFS multdev and device table

EROFS 多设备和设备表

EROFS xattr

EROFS 扩展属性

EROFS trace read funcgraph

EROFS 跟踪读调用路径

EROFS page cache sharing

EROFS 页缓存共享

EROFS FSDAX

EROFS 文件系统直接访问持久内存

EROFS file-backed image

EROFS 文件后端

EROFS core struct

EROFS 核心结构体

EROFS practise and contribute

EROFS 动手实践

EROFS advanced features

EROFS 高级特性

EROFS back-end decompression

EROFS 后端解压

EROFS compressed reading-path

EROFS 压缩读路径

EROFS uncompressed reading-path

EROFS 非压缩读路径

EROFS mount and metabuf

EROFS 挂载与元数据原语

EROFS on-disk format

EROFS 镜像格式

EROFS Prerequisites

EROFS 前置知识

EROFS Overview

EROFS 概览

Universal principles for file system design

文件系统设计普适原则

xfs introduction

xfs 文件系统介绍

overlayfs usage

嵌入式 overlayfs 玩法

文件系统扩展属性

fs xattr

系统时间慢于世界时间

System time is slower than real-world time

系统时间慢于世界时间

System time is slower than real-world time

QEMU two-stage startup scheme

QEMU 两段式启动方案

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

网络协议栈知识点

kernel network protocol

slab location migration

slab 位置迁移

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常用命令

Common Git Commands

高速缓存的别名和同名问题

cache alias and homonyms

riscv mmu 介绍

riscv mmu instroduction

iommu概述

kernel iommu

CPU Isolation

CPU隔离

arm64 FIQ

arm64架构FIQ中断

arm64 FIQ

arm64架构FIQ中断

perf introduction

perf原理与应用

slub calculate order

创建kmem cache时计算page order

userspace rcu

urcu

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

kvm protect guest memory

kvm保护虚拟机内存

async serial port recv data delayed

异步串口收包延迟问题

using ebpf in embeded env

嵌入式环境使用ebpf

kvm gpa to hva

内存虚拟化之地址转换

dma & cma

dma misc knowledge points

trace pagecache

跟踪pagecache处理流程

Universal principles for file system design

文件系统设计普适原则

codebuddy webGUI

codebuddy webGUI 使用

xfs introduction

xfs 文件系统介绍

Zram Can't change algorithm for initialized device

zram切换算法失败问题

EROFS iomap iter test

EROFS iomap 迭代数值的实测验证

EROFS graft iomap

EROFS 嫁接 iomap

EROFS trace read funcgraph

EROFS 跟踪读调用路径

EROFS Super Block

EROFS 超级块

EROFS flatdev and multidev mapping

EROFS 扁平块设备与多设备地址映射

EROFS trace mount blobdev

EROFS 跟踪blobdev多设备mount流程

EROFS dev subject

EROFS 设备专题

EROFS chunk-based file addresing

EROFS chunk-based 文件寻址

EROFS addressing the image file

EROFS 寻址镜像文件

EROFS on-disk layout

EROFS 磁盘镜像布局

EROFS two blobdevs vm test

EROFS 双blobdev虚拟机测试

EROFS Business Scenario

EROFS 业务场景

EROFS metabox

EROFS 元数据压缩

EROFS zip accel

EROFS 硬件解压加速

EROFS trace dedupe ishare reading-path

EROFS 跟踪 dedupe 与 ishare 读路径

EROFS 48-bit block address

EROFS 48比特块地址

EROFS trace fragment/ztailpacking reading-path

EROFS 跟踪 fragment/ztailpacking 读路径

EROFS dedupe

EROFS 去重

EROFS fragment and ztailpacking

EROFS multdev and device table

EROFS 多设备和设备表

EROFS xattr

EROFS 扩展属性

EROFS trace read funcgraph

EROFS 跟踪读调用路径

EROFS page cache sharing

EROFS 页缓存共享

EROFS FSDAX

EROFS 文件系统直接访问持久内存

EROFS file-backed image

EROFS 文件后端

EROFS core struct

EROFS 核心结构体

EROFS practise and contribute

EROFS 动手实践

EROFS advanced features

EROFS 高级特性

EROFS back-end decompression

EROFS 后端解压

EROFS compressed reading-path

EROFS 压缩读路径

EROFS uncompressed reading-path

EROFS 非压缩读路径

EROFS mount and metabuf

EROFS 挂载与元数据原语

EROFS on-disk format

EROFS 镜像格式

EROFS Prerequisites

EROFS 前置知识

EROFS Overview

EROFS 概览