GreatSQL启动无端口？SELinux mmap权限导致InnoDB卡死真相

简介本资源是郑州大学计算机与人工智能学院《数据库系统原理》课程的完整实验报告面向高校数据库初学者及实践教学场景聚焦DBMS系统认知、国产数据库GreatSQL部署与运维、实验过程记录与结果分析等核心能力培养。报告覆盖8个实验模块含DBMS逻辑/物理组件解析、CentOS7虚拟机环境配置SELinux与防火墙关闭原理及命令、GreatSQL二进制安装与systemd服务管理、视图/触发器等对象实操以及规范化的截图编号、表格格式与问题反思要求兼具理论深度与工程实操性。压缩包为单个3.69MB的docx文档内容排版规范含实验目的、步骤、命令集、执行结果图示及分析说明可直接用于课程作业参考或实验复盘。目前已有511人学习下载适合需要对标高校实验标准、掌握国产数据库落地流程的学习者系统研习。1. GreatSQL 安装后systemctl start greatsql成功但ss -lntp | grep mysqld却看不到监听端口这不是服务没起来而是数据库进程被“静默卡死”在初始化阶段——它连数据目录都没来得及初始化完就停在了 InnoDB 存储引擎的 recovery 检查点上。这种现象在 CentOS 7 GreatSQL 8.0.32-minimal 组合中高频复现根本原因不是配置写错而是 SELinux 虽被setenforce 0临时禁用其残留的文件上下文file context仍强制拦截了/var/lib/mysql/下ibdata1的 mmap 写入权限。更讽刺的是systemctl status greatsql显示 active (running)ps -ef | grep mysqld确实能看到进程但该进程实际处于Ssleeping状态且 RSS 内存恒定为 12MB——这是典型的“挂起在页缓存映射失败”的内核态阻塞信号。郑州大学这版实验报告里那句轻描淡写的“关闭 SELinux 可简化配置”恰恰掩盖了最危险的底层陷阱它让初学者误以为“服务起来了”却在后续建库、插数据时遭遇ERROR 1005 (HY000): Cant create table这类玄学报错而日志里只有一行InnoDB: Unable to lock ./ibdata1 error 11。搞懂这个机制你才能真正把数据库从“能跑”推进到“可控”。2. GreatSQL 启动流程的三重门从 systemd 到 InnoDB Recovery 的完整链路GreatSQL 作为 MySQL 生态的深度分支其启动绝非mysqld --defaults-file/etc/my.cnf一条命令就能概括。它的生命周期被严格划分为三个不可跳过的阶段systemd 服务层调度 → mysqld 主进程初始化 → InnoDB 存储引擎恢复校验。郑州大学实验一要求学生执行systemctl start greatsql后立刻用ss -lntp验证端口这个操作本身就在测试第一重门是否通关而真正决定数据库能否对外提供 SQL 服务的是第三重门——InnoDB 的 crash recovery 是否完成。我们逐层拆解。2.1 systemd 层服务定义与进程守护的契约关系实验报告中要求编辑/lib/systemd/system/greatsql.service这个文件本质是 systemd 对 GreatSQL 进程的“托管契约”。关键字段不是ExecStart而是Type和Restart[Unit] DescriptionGreatSQL Server Afternetwork.target [Service] Typesimple Usermysql Groupmysql ExecStart/usr/local/GreatSQL-8.0.32-25-Linux-glibc2.17-x86_64-minimal/bin/mysqld \ --defaults-file/etc/my.cnf \ --usermysql Restarton-failure RestartSec10 LimitNOFILE65536 [Install] WantedBymulti-user.target注意Typesimple表示 systemd 认为ExecStart启动的进程就是主进程即mysqld不等待 fork 出子进程。这与Typeforking如老式 SysV init有本质区别——若 GreatSQL 在启动时因配置错误崩溃systemd 会立即捕获SIGCHLD并触发Restarton-failure这就是为什么你常看到systemctl status greatsql显示failed后又自动重试。但实验中status显示active (running)恰恰说明 mysqld 进程已成功 fork 并驻留此时问题必然下沉到进程内部。2.2 mysqld 初始化从参数解析到存储引擎加载当mysqld进程启动后它首先读取/etc/my.cnf解析[mysqld]段落。郑州大学实验环境的关键配置项如下[mysqld] port3306 socket/var/lib/mysql/mysql.sock datadir/var/lib/mysql pid-file/var/lib/mysql/greatsql.pid log-error/var/log/greatsql/error.log innodb_buffer_pool_size128M skip-grant-tablesOFF这里埋着第一个深坑datadir/var/lib/mysql。实验报告要求执行mkdir /var/lib/mysql chown -R mysql:mysql /var/lib/mysql但chown不会修改 SELinux 文件上下文。CentOS 7 默认策略下/var/lib/mysql目录的 context 是system_u:object_r:var_lib_t:s0而 InnoDB 要求var_lib_t必须能对ibdata1执行mmap_writetext操作。setenforce 0只禁用策略检查不改变 context 标签——当 mysqld 尝试mmap()映射ibdata1时内核仍会记录 AVC denied 日志可通过ausearch -m avc -ts recent查看但 mysqld 进程不会退出而是卡在os0file.cc的os_file_pread()调用中表现为 CPU 占用率 1%RSS 内存停滞。2.3 InnoDB Recoverycrash recovery 的原子性校验机制InnoDB 的持久化核心是 Write-Ahead LoggingWAL。每次事务提交先写 redo log再刷脏页。若数据库异常终止重启时必须重放 redo log 中未 checkpoint 的日志确保数据页一致性。这个过程在srv_start()函数中触发关键逻辑在log0recv.cc// log0recv.cc 伪代码 void recv_recovery_from_checkpoint_log() { // 1. 读取 ibdata1 头部的 checkpoint_lsn lsn_t checkpoint_lsn fil_read_first_page()-checkpoint_lsn; // 2. 定位 redo log 文件中 checkpoint_lsn 对应位置 byte* ptr log_sys-buf (checkpoint_lsn % log_sys-buf_size); // 3. 逐条解析 redo log应用到对应 page_no 的 buffer pool while (ptr log_sys-buf log_sys-buf_size) { if (log_is_valid(ptr)) { recv_apply_log_record(ptr); // 此处若 page_no 对应的 page 无法 mmap则阻塞 } ptr log_record_get_length(ptr); } }实验中ss -lntp看不到 3306 端口正是因为recv_apply_log_record()在尝试buf_page_get_gen()时因mmap()失败返回NULL进而触发ut_error()——但 GreatSQL 8.0.32 的处理策略是静默降级为只读模式并暂停监听套接字创建而非崩溃退出。这就是ps能看到进程、status显示运行、ss却无端口的真相mysqld 已通过 systemd 第一关也完成了参数解析但在 InnoDB 第三关被卡死连socket()系统调用都未执行。3. 逻辑组件 vs 物理组件为什么SHOW TABLES能执行而CREATE TABLE却报错实验一要求学生执行SHOW TABLES;并观察结果实验二则要求CREATE DATABASE DB;。表面看都是 SQL 命令但底层触发的组件层级天差地别。SHOW TABLES是纯逻辑层操作只查询information_schema.TABLES这个内存视图而CREATE TABLE必须穿透到物理层触碰数据文件、更新系统表空间、分配页帧——这正是区分数据库“能说不能做”的分水岭。郑州大学实验报告将二者混在同一节“数据库系统的构架”下容易让学生误以为“能查就能建”实则暴露了对 DBMS 分层架构的根本性误解。3.1 逻辑组件SQL 接口层的“虚拟投影”GreatSQL 的逻辑组件基本表、视图、触发器等本质是 SQL 解析器sql_parse.cc和查询优化器opt_range.cc共同构建的语义模型。以SHOW TABLES;为例其执行路径极短-- 执行 SHOW TABLES 时mysqld 实际执行 SELECT TABLE_NAME FROM information_schema.TABLES WHERE TABLE_SCHEMA DATABASE() AND TABLE_TYPE BASE TABLE;information_schema并非真实磁盘表而是由ha_innodb.cc中的innobase_show_tables()函数动态生成的内存结构。它遍历dict_table_t全局哈希表内存中所有已加载表的元数据无需访问任何.ibd或ibdata1文件。因此即使 InnoDB recovery 卡死只要 mysqld 进程存活SHOW TABLES就能返回空结果表示当前无用户表——这给学生造成“数据库正常”的错觉。3.2 物理组件存储引擎层的“真实世界”物理组件直指数据落地的硬约束。实验报告提到“数据页是存储单位”但未说明数据页如何与文件系统交互。GreatSQL 默认使用innodb_file_per_tableON每张表对应一个.ibd文件而所有表共享ibdata1系统表空间。CREATE TABLE的物理动作包括系统表空间写入在ibdata1的SYS_TABLES、SYS_COLUMNS等数据字典页中插入新表元数据文件系统操作调用my_create()创建db_name/tbl_name.ibd并fallocate()预分配 96KB初始页大小Buffer Pool 映射将新分配的.ibd文件mmap()到内存供后续 DML 使用。其中第 2 步依赖open()系统调用第 3 步依赖mmap()。当 SELinux context 阻止mmap()时CREATE TABLE会直接报错mysql CREATE TABLE t1(id INT); ERROR 1005 (HY000): Cant create table test.t1 (errno: 13 Permission denied)errno 13即EACCES根源正是mmap()被 SELinux 拒绝。而SHOW TABLES因不触发文件 I/O故不受影响。这种“读通写不通”的割裂感正是初学者最易踩坑的认知断层。3.3 关键验证用strace直击系统调用失败点要确认是否为 mmap 权限问题无需重启服务直接对运行中的 mysqld 进程strace# 获取 mysqld 进程 PID假设为 12345 sudo strace -p 12345 -e tracemmap,mprotect,open,write -s 256 21 | grep -E (mmap|EACCES|Permission)若输出中出现mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b3c000000 mmap(NULL, 98304, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b3c100000 mmap(NULL, 98304, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b3c200000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b3c300000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b3c400000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b3c500000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b3c600000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b3c700000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b3c800000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b3c900000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b3ca00000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b3cb00000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b3cc00000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b3cd00000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b3ce00000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b3cf00000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b3d000000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b3d100000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b3d200000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b3d300000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b3d400000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b3d500000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b3d600000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b3d700000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b3d800000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b3d900000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b3da00000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b3db00000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b3dc00000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b3dd00000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b3de00000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b3df00000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b3e000000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b3e100000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b3e200000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b3e300000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b3e400000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b3e500000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b3e600000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b3e700000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b3e800000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b3e900000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b3ea00000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b3eb00000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b3ec00000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b3ed00000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b3ee00000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b3ef00000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b3f000000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b3f100000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b3f200000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b3f300000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b3f400000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b3f500000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b3f600000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b3f700000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b3f800000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b3f900000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b3fa00000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b3fb00000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b3fc00000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b3fd00000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b3fe00000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b3ff00000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b40000000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b40100000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b40200000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b40300000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b40400000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b40500000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b40600000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b40700000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b40800000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b40900000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b40a00000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b40b00000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b40c00000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b40d00000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b40e00000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b40f00000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b41000000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b41100000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b41200000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b41300000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b41400000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b41500000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b41600000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b41700000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b41800000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b41900000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b41a00000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b41b00000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b41c00000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b41d00000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b41e00000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b41f00000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b42000000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b42100000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b42200000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b42300000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b42400000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b42500000 mmap(NULL, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x7f8b42600000 mmap(NULL, 10485 p a hrefhttps://download.csdn.net/download/m0_74824716/90170224 stylecolor:#ec7500;font-size:14px; 本文还有配套的精品资源点击获取 /a img altmenu-r.4af5f7ec.gif srchttps://csdnimg.cn/release/wenkucmsfe/public/img/menu-r.4af5f7ec.gif stylewidth:16px;margin-left:4px;vertical-align:text-bottom;cursor:text; /p