};/* Here we use the entry_hanlder to timestamp function entry */staticintentry_handler(structkretprobe_instance *ri,structpt_regs *regs){structmy_data*data;if(!current->mm)return1;/* Skip kernel threads */data = (structmy_data *)ri->data; data->entry_stamp =ktime_get();return0;...
debug #enable kernel debugging 启动中的所有debug信息都会打印到console上 quiet #disable all log messages 将kernel log level设置为KERN_WARNING,在启动中只非常严重的信息 loglevel #设置默认的console日志级别,如:loglevel=7 (0~7的数字分别为:KERN_EMERG,..,KERN_DEBUG) time #设置在每条kernel log信息前...
level = 0, .child_reaper = &init_task, .user_ns = &init_user_ns, .proc_inum = PROC_PID_INIT_INO, }; EXPORT_SYMBOL_GPL(init_pid_ns); last_pid 初始化为 0,所以初始 pid = 1,offset != 0,遍历次数为 2。不过因为是首次分配,找到第一个空闲的 pid 就会返回,不会真正遍历 2 次。这里...
userfaultfd初始化:我们可以接着初始化 N_THREADS 个(本exp中为8)页错误处理线程:首先8次调用 mmap(),每次map 3页内存;每次都使用userfaultfd监视第2个页—[1];接着开启8个页错误处理 handler—[2],每个线程都处理一个特定的页。 void create_pfh_thread(int id, int ufd, void *page) { struct pfh...
networking (except for the hardware device level) UNIX security model syscall support the BSD process model, including process IDs and signals FreeBSD kernel APIs many of the POSIX APIs kernel support for pthreads (POSIX threads) The BSD component is described in more detail in the chapter BSD...
a user profile. The experiment can be processed by theer_printutility or the Performance Analyzer. Akernel experiment can show function data, caller-callee data, instruction-level data, and a timeline, but not source-line data (because most Solaris OS modules do not contain line-number tables...
The design of a kernel-level thread package for dynamic, hard real-time environments is presented. A highly integrated design is used to ensure predictability. A system description language and real-time programming language are used to specify key properties of threads and thread groups. For a ...
- perf script: Fix memory 'threads' and 'cpus' leaks on exit - perf report: Free generated help strings for sort option - perf env: Fix memory leak of cpu_pmu_caps - perf test maps__merge_in: Fix memory leak of maps
User level:Level 7 29,264 points Posted on Feb 5, 2018 11:54 AM Shut down, then disconnect all external devices Reset the System Management Controller (SMC) https://support.apple.com/en-us/HT201295 repeat 2/3 times Reset the nonvolatile random-access memory (NVRAM) ...
Microsoft Windows Debugger (WinDbg) is a powerful Windows-based debugging tool that you can use to perform user-mode and kernel-mode debugging. WinDbg provides source-level debugging for the Windows kernel, kernel-mode drivers, and system services, as well as user-mode applications and drivers....