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core dump analysis : __kernel_vsyscall ()
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SKILL(1) Linux User's Manual SKILL(1) , NAME
skill, snice - report process status SYNOPSIS
skill [signal to send] [options] process selection criteria snice [new priority] [options] process selection criteria DESCRIPTION
The default signal for skill is TERM. Use -l or -L to list available signals. Particularly useful signals include HUP, INT, KILL, STOP, CONT, and 0. Alternate signals may be specified in three ways: -9 -SIGKILL -KILL. The default priority for snice is +4. (snice +4 ...) Priority numbers range from +20 (slowest) to -20 (fastest). Negative priority num- bers are restricted to administrative users. GENERAL OPTIONS
-f fast mode This is not currently useful. -i interactive use You will be asked to approve each action. -v verbose output Display information about selected processes. -w warnings enabled This is not currently useful. -n no action This only displays the process ID. PROCESS SELECTION OPTIONS
Selection criteria can be: terminal, user, pid, command. The options below may be used to ensure correct interpretation. -t The next argument is a terminal (tty or pty). -u The next argument is a username. -p The next argument is a process ID number. -c The next argument is a command name. SIGNALS
The signals listed below are available for use with skill. When known, numbers and default behavior are shown. Name Num Action Description () () ALRM 14 exit HUP 1 exit INT 2 exit KILL 9 exit this signal may not be blocked PIPE 13 exit POLL exit PROF exit TERM 15 exit USR1 exit USR2 exit VTALRM exit STKFLT exit i386, m68k, arm and ppc hardware only UNUSED exit i386, m68k, arm and ppc hardware only TSTP stop context-dependent behavior may appear random TTIN stop context-dependent behavior may appear random TTOU stop context-dependent behavior may appear random STOP stop this signal may not be blocked CONT restart continue if stopped, otherwise ignore PWR ignore may exit on some systems WINCH ignore CHLD ignore URG ignore ABRT 6 core FPE 8 core ILL 4 core QUIT 3 core SEGV 11 core TRAP 5 core SYS core may not be implemented EMT core may not be implemented BUS core core dump may fail XCPU core core dump may fail XFSZ core core dump may fail EXAMPLES
Command Description snice netscape crack +7 Slow down netscape and crack skill -KILL -v pts/* Kill users on new-style PTY devices skill -STOP torvalds davem tytso Stop 3 users snice -17 root bash Give priority to root's shell SEE ALSO
top(1) kill(1) renice(1) nice(1) STANDARDS
No standards apply. AUTHOR
Albert Cahalan <acahalan@cs.uml.edu> wrote skill and snice in 1999 as a replacement for a non-free version. Michael K. Johnson <john- sonm@redhat.com> is the current maintainer of the procps collection. Please send bug reports to <procps-list@redhat.com> ()
