On 22 Mar 2006, at 10:39, Arjan van de Ven wrote: >> The intent is to allow remote management tools to trigger a clean >> shutdown of the virtual machine. That requires us to notify to >> userspace, and this function does that by exec'ing one of the standard >> userspace programs. Given the trigger is received by the kernel in the >> first instance I don't know a better way of doing this. And if this is >> the best way, I don't think there is generic code in the kernel which >> does the same thing. > > > well this isn't really different from the normal ctrl-alt-delete right? > I would strongly suggest to follow the normal ctrl-alt-del path.. that > follows the normal convention sysadmins are used to. > It's not "/sbin/poweroff" fwiw... at least not hardcoded. Following the > normal ctrl-alt-del codepath gets all the policy out of this kind of > thing as well.. Hmm... that will work okay for reboot, where SIGINT to init is probably a better strategy than what we do now. But we'd still need something special for halt/shutdown. We followed the same principle for this as sparc64/kernel/power.c. -- Keir
