kernel thread vs user thread The most important difference is they use different memory, the kernel mode thread can access any kernel memory, while the user mode can only access the user memory. 相信世界是平的 谨记四个字“修身养性” 大江东去浪淘尽英雄,再牛B的人物最后也是一掊土 向善不是目的...
在Redhat的系统中,还有个经常看到的kernel启动参数——rhgb,rhgb表示redhat graphics boot,就是会看到图片来代替启动过程中显示的文本信息,这些信息在启动后用dmesg也可以看到 rhgb = redhat graphical boot – This is a GUI mode booting screen with most of the information hidden while the user sees a rotatin...
在bughunt.c中,如前所述,主要就是启动fuzz的线程。 在bughunt_thread.h的bughunt_thread函数中首先随机调用要fuzz的库调用。这里也可以看到本意可能是在进行库调用时随机用hooking.h提供的设置和取消hook的功能,但是实际上没有用到。 library_calls.h中有library_calls目录下要fuzz的所有库调用名,这里library_calls...
IoGetCurrentProcess Returns a pointer to the process of the current thread. PsGetCurrentProcess Returns a pointer to the process of the current thread. KeEnterCriticalRegion Temporarily disables the delivery of normal kernel APCs while a highest-level driver is running in the context of the user-mode...
The KERNEL_THREAD_PRIORITY_FLOOR_VIOLATION bug check has a value of 0x00000157. This indicates that an illegal operation was attempted on the priority floor of a particular thread.
The KERNEL_MODE_EXCEPTION_NOT_HANDLED bug check has a value of 0x0000008E. This bug check indicates that a kernel-mode application generated an exception that the error handler did not catch.
[ 1739.451891] rcu: INFO: rcu_sched self-detected stall on CPU [ 1739.452511] rcu: 7-...: (59616 ticks this GP) idle=d4ec/1/0x4000000000000000 softirq=18636/18636 fqs=5263 [ 1739.453498] rcu: (t=60008 jiffies g=67965 q=36939 ncpus=8) [ 1739.454053] rcu: rcu_sched kthread starved...
#ifdef CONFIG_THREAD_INFO_IN_TASK unsigned int cpu; /* current CPU */ #endif unsigned int wakee_flips; unsigned long wakee_flip_decay_ts; struct task_struct *last_wakee; int wake_cpu; #endif int on_rq; int prio, static_prio, normal_prio; ...
// file: arch/x86/kernel/cpu/common.cDEFINE_PER_CPU(unsignedlong,kernel_stack)=(unsignedlong)&init_thread_union-KERNEL_STACK_OFFSET+THREAD_SIZE; 宏DEFINE_PER_CPU内部将入参直接透传给了DEFINE_PER_CPU_SECTION宏,其定义如下: // file: include/linux/percpu-defs.h#define DEFINE_PER_CPU_SECTION(...
UADK 全称为 User Space Accelerator Development Kit, 是一套用户态硬件加速器开发工具集,旨在 SVA 技术下用户可以高效地利用鲲鹏硬件加速器能力,为用户提供基础的库和驱动支持,通俗地说就是给数据进行压缩解压缩、加解密等处理加速的软件库。UADK 作为通用的加速器用户态框架并不只是支持鲲鹏加速器,配合 UACCE 框架...