Instead of adding a CP SIGNAL SHUTDOWN option to prevent shutdown (contrary to the signal name), it'd be better to extend the CP SIGNAL command to send other types of signals for other purposes, something like the linux 'kill' command. kill sounds like it started out as a stone cold killer but was reformed to deliver many other useful, non-fatal signals. Something like CP SIGNAL QUIT or SIGNAL STOP
'kill -l' lists these types of special-purpose signals 1) SIGHUP 2) SIGINT 3) SIGQUIT 4) SIGILL 5) SIGTRAP 6) SIGABRT 7) SIGBUS 8) SIGFPE 9) SIGKILL 10) SIGUSR1 11) SIGSEGV 12) SIGUSR2 13) SIGPIPE 14) SIGALRM 15) SIGTERM 17) SIGCHLD 18) SIGCONT 19) SIGSTOP 20) SIGTSTP 21) SIGTTIN 22) SIGTTOU 23) SIGURG 24) SIGXCPU 25) SIGXFSZ 26) SIGVTALRM 27) SIGPROF 28) SIGWINCH 29) SIGIO 30) SIGPWR 31) SIGSYS 33) SIGRTMIN 34) SIGRTMIN+1 35) SIGRTMIN+2 36) SIGRTMIN+3 37) SIGRTMIN+4 38) SIGRTMIN+5 39) SIGRTMIN+6 40) SIGRTMIN+7 41) SIGRTMIN+8 42) SIGRTMIN+9 43) SIGRTMIN+10 44) SIGRTMIN+11 45) SIGRTMIN+12 46) SIGRTMIN+13 47) SIGRTMIN+14 48) SIGRTMIN+15 49) SIGRTMAX-15 50) SIGRTMAX-14 51) SIGRTMAX-13 52) SIGRTMAX-12 53) SIGRTMAX-11 54) SIGRTMAX-10 55) SIGRTMAX-9 56) SIGRTMAX-8 57) SIGRTMAX-7 58) SIGRTMAX-6 59) SIGRTMAX-5 60) SIGRTMAX-4 61) SIGRTMAX-3 62) SIGRTMAX-2 63) SIGRTMAX-1 64) SIGRTMAX -------------------------------------------------------- This e-mail, including any attachments, may be confidential, privileged or otherwise legally protected. It is intended only for the addressee. If you received this e-mail in error or from someone who was not authorized to send it to you, do not disseminate, copy or otherwise use this e-mail or its attachments. Please notify the sender immediately by reply e-mail and delete the e-mail from your system. -----Original Message----- From: The IBM z/VM Operating System [mailto:[EMAIL PROTECTED] On Behalf Of Berry van Sleeuwen Sent: Thursday, March 13, 2008 6:21 PM To: IBMVM@LISTSERV.UARK.EDU Subject: Re: Using WakeUp to cycle a zLinux instance <snip> I had a discussion with IBM on that some time ago. I'd liked to see an option in signal to prevent the shutdown of guests when they do not shutdown within the timeout period. But IBM did not follow me on that. When a forced user in not acceptable (databases or jobs cancelled while processing) they advised not to use SIGNAL. This is true for zLinux but also for guest VM, VSE and SFS (all of them can trap the signal.) <snip>
