On Monday 14 January 2002 20:24, Bob Miller wrote: > Patrick R. Wade wrote: > > On Mon, Jan 07, 2002 at 05:07:51PM -0800, Bob Miller wrote: > > >I have a TigerMP, the cheaper one. There were no Linux problems. > > >When I installed Mandrake 8,1, it just worked. When I moved my > > > RedHat 6.1 disk onto it, I simply built an SMP kernel and was > > > running. > > > > > >Oh, okay, there is one problem. An SMP kernel doesn't power down > > > the system when you halt it. You have to press and hold down the > > > power button. > > > > Does the SysRq thing work for poweroff? I was having trouble with > > the ACPI BIOS on my laptop not always powering off correctly after > > shutdown -h, but alt-sysrq-o did the trick. > > No, it does not. Too bad.
You may need to wait for the CPU hot plug patch to stabilize. With that in, you'll be able to take one CPU off line before shutting down, and, hopefully, enable the lone running CPU to safely power off.
