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# stap sig_by_pid.stp 
Collecting data... Type Ctrl-C to exit and display results
^C
Collecting data... Type Ctrl-C to exit and display results
SPID     SENDER           RPID  RECEIVER         SIGNAME          COUNT
0        swapper          25273 Xvnc             SIGALRM          1576
25273    Xvnc             25273 Xvnc             SIGALRM          17
29219    firefox-bin      25273 Xvnc             SIGALRM          12
0        swapper          2442  automount        SIGALRM          12
26754    xterm            26756 bash             SIGWINCH         9
0        swapper          2199  syslogd          SIGALRM          6
25345    metacity         25273 Xvnc             SIGALRM          3
2791     wclientd         2791  wclientd         SIGUSR1          2
30385    ifconfig         30384 sh               SIGCHLD          1
30384    sh               2802  wcstatusd        SIGCHLD          1
30387    mii-tool         30386 sh               SIGCHLD          1
30386    sh               2802  wcstatusd        SIGCHLD          1
30388    lspci            2802  wcstatusd        SIGCHLD          1
30389    sh               2802  wcstatusd        SIGCHLD          1
30391    ifconfig         25273 Xvnc             SIGALRM          1
30391    ifconfig         30390 sh               SIGCHLD          1
30390    sh               2802  wcstatusd        SIGCHLD          1
30393    mii-tool         30392 sh               SIGCHLD          1
30392    sh               2802  wcstatusd        SIGCHLD          1