Signal Name Signal 說明
SIGHUP
1
Hans up
SIGINT
2
Interrupts
SIGQUIT
3
Quits
SIGILL
4
Illegal instruction
SIGTRAP
5
Trace trap
SIGABRT
6
Used by abort
SIGEMT
7
EMT instruction
SIGFPE
8
Floatin-point exception
SIGKILL
9
Kill (cannot be cauht or ignored)
SIGBUS
10
Bus error
SIGSEGV
11
Sementation violation
SIGSYS
12
Bad arument to system call
SIGPIPE
13
Writes on a pipe with no one to read it
SIGALRM
14
Alarm clock
SIGBBTERM
15
Software termination
SIGUSR1
16
User-defined signal 1
SIGUSR2
17
User-defined signal 2
SIGCHLD
18
Child status change alias (POSIX)
SIGPWR
19
Power-fail restart
SIGWINCH
20
Window size change
SIGURG
21
Urgent socket condition
SIGPOLL/SIGIO
22
Pollable event occurred or Socket I/O possible
SIGSTOP
23
Stop (cannot be caught or ignored)
SIGTS0TP
24
User stop requested from TTY
SIGCONT
25
Stopped process has been continued
SIGTTIN
26
Background TTY read attempted
SIGTTOU
27
Background TTY write attempted
SIGVTALRM
28
Virtual timer expired
SIGPROF
29
Profiling timer expired
SIGXCPU
30
Exceeded CPU limit
SIGXFSZ
31
Exceeded file size limit
SIGWAITING
32
Process' LWPs are blocked
SIGLWP
33
Special signal used by thread library
SIGFREEZE
34
Special signal used by CPR
SIGTHAW
35
Special signal used by CPR
SIGCANCEL
36
Thread cancellation signal used by libthread
SIGLOST
37
Resource lost
SIGRTMIN
38
Hihest priority real-time signal
SIGRTMAX
45
Lowest priority real-time signal
Web Page Copyright: 亞洲大學資訊電機學院 連耀南 yaonanlien@asia.edu.tw  signal3.htm,  Wed Jan 24 23:42:45 CST 2024