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Hello, I have written the following dtrace script to trace who is killing an application process: #!/usr/sbin/dtrace -s #pragma D option quiet proc:::signal-send /args[1]->pr_pid == $1/ { printf("%20s %20s %12s %12s %12s\n", "SENDER", "RECIPIENT", "SEND PID", "REC PID", "SIGNAL"); printf("%20s %20s %12d %12d %12d\n", execname, stringof(args[1]->pr_fname), pid, args[1]->pr_pid, args[2]); } When I interrupt (Ctrl+C) the dtrace script the application process got terminated and the following trace appears in the output of the dtrace script: r...@hkctmd01 # /tmp/signal.d 18080 SENDER RECIPIENT SEND PID REC PID SIGNAL sched p_ctmag 0 18080 18 SENDER RECIPIENT SEND PID REC PID SIGNAL sched p_ctmag 0 18080 18 SENDER RECIPIENT SEND PID REC PID SIGNAL sched p_ctmag 0 18080 18 ^C SENDER RECIPIENT SEND PID REC PID SIGNAL sshd p_ctmag 24510 27861 2 Questions is: - Why the application process got terminated when I kill the dtrace script: - Why the dtrace script trace also signal sent to process 27861 even if I have filtered for proc 18080? Thanks in advance! --
 Andrea Cucciarre' - System engineer Systems Technology Service Centre Solaris and Networking Global Services Delivery Phone: +39 0264152047 Email: andrea.cuccia...@oracle.com |
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