Link

Signal

Table of contents

SignalPortable numberDefault actionDescription
SIGABRT6Core dumpProcess abort signal
SIGALRM14TerminateAlarm clock
SIGBUSN/ACore dumpAccess to an undefined portion of a memory object
SIGCHLDN/AIgnoreChild process terminated, stopped, or continued
SIGCONTN/AContinueContinue executing, if stopped
SIGFPE8Core dumpErroneous arithmetic operation
SIGHUP1TerminateHangup
SIGILL4Core dumpIllegal instruction
SIGINT2TerminateTerminal interrupt signal
SIGKILL9TerminateKill (cannot be caught or ignored)
SIGPIPE13TerminateWrite on a pipe with no one to read it
SIGPOLLN/ATerminatePollable event
SIGPROFN/ATerminateProfiling timer expired
SIGQUIT3Core dumpTerminal quit signal
SIGSEGV11Core dumpInvalid memory reference
SIGSTOPN/AStopStop executing (cannot be caught or ignored)
SIGSYSN/ACore dumpBad system call
SIGTERM15TerminateTermination signal
SIGTRAP5Core dumpTrace/breakpoint trap
SIGTSTPN/AStopTerminal stop signal
SIGTTINN/AStopBackground process attempting read
SIGTTOUN/AStopBackground process attempting write
SIGUSR1N/ATerminateUser-defined signal 1
SIGUSR2N/ATerminateUser-defined signal 2
SIGURGN/AIgnoreOut-of-band data is available at a socket
SIGVTALRMN/ATerminateVirtual timer expired
SIGXCPUN/ACore dumpCPU time limit exceeded
SIGXFSZN/ACore dumpFile size limit exceeded
SIGWINCHN/AIgnoreTerminal window size changed