| Name | Number | Default
Action |
Description |
|---|---|---|---|
| SIGHUP | 1 | Exit | Hangup (ref termio(7I)) |
| SIGINT | 2 | Exit | Interrupt (ref termio(7I)) |
| SIGQUIT | 3 | Core | Quit (ref termio(7I)) |
| SIGILL | 4 | Core | Illegal Instruction |
| SIGTRAP | 5 | Core | Trace or breakpoint trap |
| SIGABRT | 6 | Core | Abort |
| SIGEMT | 7 | Core | Emulation trap |
| SIGFPE | 8 | Core | Arithmetic exception |
| SIGKILL | 9 | Exit | Kill |
| SIGBUS | 10 | Core | Bus error--a misaligned address error |
| SIGSEGV | 11 | Core | Segmentation fault, an address reference boundary error |
| SIGSYS | 12 | Core | Bad system call |
| SIGPIPE | 13 | Exit | Broken pipe |
| SIGALRM | 14 | Exit | Alarm clock |
| SIGTERM | 15 | Exit | Terminated |
| SIGUSR1 | 16 | Exit | User defined signal 1 |
| SIGUSR2 | 17 | Exit | User defined signal 2 |
| SIGCHLD | 18 | Ignore | Child process status changed |
| SIGPWR | 19 | Ignore | Power fail or restart |
| SIGWINCH | 20 | Ignore | Window size change |
| SIGURG | 21 | Ignore | Urgent socket condition |
| SIGPOLL | 22 | Exit | Pollable event (ref streamio(7I)) |
| SIGSTOP | 23 | Stop | Stop (cannot be caught or ignored) |
| SIGTSTP | 24 | Stop | Stop (job control, e.g., CTRL-z)) |
| SIGCONT | 25 | Ignore | Continued |
| SIGTTIN | 26 | Stop | Stopped--tty input (ref termio(7I)) |
| SIGTTOU | 27 | Stop | Stopped--tty output (ref termio(7I)) |
| SIGVTALRM | 28 | Exit | Virtual timer expired |
| SIGPROF | 29 | Exit | Profiling timer expired |
| SIGXCPU | 30 | Core | CPU time limit exceeded (ref getrlimit(2)) |
| SIGXFSZ | 31 | Core | File size limit exceeded (ref getrlimit(2)) |
| SIGWAITING | 32 | Ignore | Concurrency signal used by threads library |
| SIGLWP | 33 | Ignore | Inter-LWP signal used by threads library |
| SIGFREEZE | 34 | Ignore | Checkpoint suspend |
| SIGTHAW | 35 | Ignore | Checkpoint resume |
| SIGCANCEL | 36 | Ignore | Cancellation signal used by threads library |
| SIGLOST | 37 | Ignore | Resource lost |
| SIGRTMIN | 38 | Exit | Highest priority real-time signal |
| SIGRTMAX | 45 | Exit | Lowest priority real-time signal |
From Issue #73 Table of Contents