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最新推荐文章于 2025-12-20 15:12:19 发布

转载最新推荐文章于 2025-12-20 15:12:19 发布 · 427 阅读

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原文链接：https://www.cnblogs.com/gcb-1991/p/6922694.html

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本文详细解读了操作系统中各种信号（SIGHUP到SIGXFSZ）的含义、编号和描述，涵盖了核心信号类型及其在编程中的应用，如进程控制、内存管理等。

部署运行你感兴趣的模型镜像

                    
                        
                    
                    Signal NameNumberDescription
SIGHUP1Hangup (POSIX)
SIGINT2Terminal interrupt (ANSI)
SIGQUIT3Terminal quit (POSIX)
SIGILL4Illegal instruction (ANSI)
SIGTRAP5Trace trap (POSIX)
SIGIOT6IOT Trap (4.2 BSD)
SIGBUS7BUS error (4.2 BSD)
SIGFPE8Floating point exception (ANSI)
SIGKILL9Kill(can't be caught or ignored) (POSIX)
SIGUSR110User defined signal 1 (POSIX)
SIGSEGV11Invalid memory segment access (ANSI)
SIGUSR212User defined signal 2 (POSIX)
SIGPIPE13Write on a pipe with no reader, Broken pipe (POSIX)
SIGALRM14Alarm clock (POSIX)
SIGTERM15Termination (ANSI)
SIGSTKFLT16Stack fault
SIGCHLD17Child process has stopped or exited, changed (POSIX)
SIGCONT18Continue executing, if stopped (POSIX)
SIGSTOP19Stop executing(can't be caught or ignored) (POSIX)
SIGTSTP20Terminal stop signal (POSIX)
SIGTTIN21Background process trying to read, from TTY (POSIX)
SIGTTOU22Background process trying to write, to TTY (POSIX)
SIGURG23Urgent condition on socket (4.2 BSD)
SIGXCPU24CPU limit exceeded (4.2 BSD)
SIGXFSZ25File size limit exceeded (4.2 BSD)
SIGVTALRM26Virtual alarm clock (4.2 BSD)
SIGPROF27Profiling alarm clock (4.2 BSD)
SIGWINCH28Window size change (4.3 BSD, Sun)
SIGIO29I/O now possible (4.2 BSD)
SIGPWR30Power failure restart (System V)



                

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Signal Name	Number	Description
SIGHUP	1	Hangup (POSIX)
SIGINT	2	Terminal interrupt (ANSI)
SIGQUIT	3	Terminal quit (POSIX)
SIGILL	4	Illegal instruction (ANSI)
SIGTRAP	5	Trace trap (POSIX)
SIGIOT	6	IOT Trap (4.2 BSD)
SIGBUS	7	BUS error (4.2 BSD)
SIGFPE	8	Floating point exception (ANSI)
SIGKILL	9	Kill(can't be caught or ignored) (POSIX)
SIGUSR1	10	User defined signal 1 (POSIX)
SIGSEGV	11	Invalid memory segment access (ANSI)
SIGUSR2	12	User defined signal 2 (POSIX)
SIGPIPE	13	Write on a pipe with no reader, Broken pipe (POSIX)
SIGALRM	14	Alarm clock (POSIX)
SIGTERM	15	Termination (ANSI)
SIGSTKFLT	16	Stack fault
SIGCHLD	17	Child process has stopped or exited, changed (POSIX)
SIGCONT	18	Continue executing, if stopped (POSIX)
SIGSTOP	19	Stop executing(can't be caught or ignored) (POSIX)
SIGTSTP	20	Terminal stop signal (POSIX)
SIGTTIN	21	Background process trying to read, from TTY (POSIX)
SIGTTOU	22	Background process trying to write, to TTY (POSIX)
SIGURG	23	Urgent condition on socket (4.2 BSD)
SIGXCPU	24	CPU limit exceeded (4.2 BSD)
SIGXFSZ	25	File size limit exceeded (4.2 BSD)
SIGVTALRM	26	Virtual alarm clock (4.2 BSD)
SIGPROF	27	Profiling alarm clock (4.2 BSD)
SIGWINCH	28	Window size change (4.3 BSD, Sun)
SIGIO	29	I/O now possible (4.2 BSD)
SIGPWR	30	Power failure restart (System V)