下表是linux2.6 在80x86 上的前31 个signals 及其相关说明 . 这些信号中有些是体系结构相关的(eg:SIGCHLD,SIGSTOP), 有些则专门了某些体系结构才存在的(eg:SIGSTKFLT) ( 可以参考中断处理 , 里面也列出了一些异常对应的signal). The first 31 signals in Linux/i386 上述signal 称为regular signal . 除此之...
Linux supports real-timesignals as originally definedinthe POSIX.1b real-timeextensions (and now includedinPOSIX.1-2001). Linux supports32real-timesignals, numbered from32(SIGRTMIN) to63(SIGRT-MAX). (Programs should always refer to real-timesignals using notation SIGRTMIN+n, since the range o...
(terminate)signals,unlikeSIGKILL,canprocessed.Normallyusedexititself,shellcommandkilldefaultsprocessdoesn'tstop,we'lltrySIGKILL.17)SIGCHLDparentprocessreceiveschildprocess.parentprocessdoeswaiting(wait)childprocess,childprocessterminates,alsooccupiestableentrykernelprocesstable,wherechildprocesszombieprocess.caseweshould...
将进程的PID写入到cgroup.procs中即可将目标PID进程绑定到该cgroup。进程与cgroup是多对多的关系,一个进程可以绑定到多个cgroup中,一个cgroup可以被多个进程绑定。在kernel中进程的数据结构task_struct与cgroup有关的是如下cgroups、cg_list两个成员: 1234567891011121314 struct task_struct {...#ifdef CONFIG_CGROUPS ...
list_add_tail(&q->list,&signals->list); 6. 填充q,如下 if ((unsigned long)info == 0) { q->info.si_signo = sig; q->info.si_errno = 0; q->info.si_code = SI_USER; q->info._sifields._kill._pid =current->pid; q->info._sifields._kill._uid =current->uid; ...
在进程描述符task_struct里面，其中一项是Signal_Strct，在Signal_Strct这里面有一项list_head的描述符，...
list_add_tail(&q->list,&signals->list); 6. 填充q,如下 if ((unsigned long)info == 0) { q->info.si_signo = sig; q->info.si_errno = 0; q->info.si_code = SI_USER; q->info._sifields._kill._pid =current->pid; q->info._sifields._kill._uid =current->uid; ...
list_add_tail(&q->list,&signals->list); 6. 填充q,如下 if ((unsigned long)info == 0) { q->info.si_signo = sig; q->info.si_errno = 0; q->info.si_code = SI_USER; q->info._sifields._kill._pid =current->pid; q->info._sifields._kill._uid =current->uid; ...
INIT_LIST_HEAD(&p->thread_group); if (clone_flags & CLONE_THREAD) { //线程处理部分,group_leader都是第一个线程。同时挂入队列 current->signal->nr_threads++; atomic_inc(¤t->signal->live); atomic_inc(¤t->signal->sigcnt); ...
*freelist; /* first free object */ union { void *s_mem; /* slab: first object */ unsigned long counters; /* SLUB */ struct { /* SLUB */ unsigned inuse:16; unsigned objects:15; unsigned frozen:1; }; }; }; struct { /* Tail pages of compound page */ unsigned long compound...