Date: Sat, 24 Apr 1999 17:56:29 -0700 (PDT) From: Mike Meyer <mwm@phone.net> To: stable@FreeBSD.ORG Subject: Re: loading new kernel Message-ID: <Pine.BSF.4.05.9904241752251.32471-100000@guru.phone.net> In-Reply-To: <Pine.BSF.4.05.9904241731420.43910-100000@kosmos.vi.dyn.ml.org>
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This doesn't really belong here, but the right people read the list. There have been systems that could do this. The ones I know about all had multiple processors. Multics did the trick by migrating everything off of one processor, shutting it down, and bringing it up running the new kernel. Do that for each processor, and when you're done you've done a kernel upgrade. Tandems NonStop systems had multiple processors so it could have a CPU failure without stopping, and they also allowed OS upgrades to be installed without stopping (nuts, they allowed CPU upgrades to be installed without stopping), though I'm not sure of the details for that one. In other words, it's not a ridiculous idea. It does tend to be expensive to implement, though. <mike On Sat, 24 Apr 1999, Allan wrote: > Date: Sat, 24 Apr 1999 17:42:23 -0700 (PDT) > From: Allan <kosmos@blarg.net> > To: Jim Cassata <jim@web-ex.com> > Cc: stable@FreeBSD.ORG > Subject: Re: loading new kernel > > The more I think about this, the more ridiculous it sounds. > Of course, it would be a real neat trick if it could be done - kind of > like changing your sneakers while jogging.. > > On Sat, 24 Apr 1999, Jim Cassata wrote: > > > hehehe, I had an employee who kept askin the powers that be if it could be > > implemented, and last I heard there was talk of implementing this, > > possibly in 4.0 > > > > > On Fri, 23 Apr 1999, Allan wrote: > > > > > Does anyone know if it is possible to load and use a newly-built kernel > > > without shutting down the machine and restarting? > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-stable" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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