Re: [PATCH v2] powerpc/kexec: Fix orphaned offline CPUs across kexec

2010-07-29 Thread Simon Horman
On Fri, Jul 30, 2010 at 01:15:14PM +1000, Michael Neuling wrote: > (adding kexec list to CC) > > In message <4c521fd2.4050...@ozlabs.org> you wrote: > > Michael Neuling wrote: > > > In message <4c511216.30...@ozlabs.org> you wrote: > > >> When CPU hotplug is used, some CPUs may be offline at the t

Re: [PATCH v2] powerpc/kexec: Fix orphaned offline CPUs across kexec

2010-07-29 Thread Michael Neuling
(adding kexec list to CC) In message <4c521fd2.4050...@ozlabs.org> you wrote: > Michael Neuling wrote: > > In message <4c511216.30...@ozlabs.org> you wrote: > >> When CPU hotplug is used, some CPUs may be offline at the time a kexec is > >> performed. The subsequent kernel may expect these CPUs t

Re: [PATCH v2] powerpc/kexec: Fix orphaned offline CPUs across kexec

2010-07-29 Thread Matt Evans
Michael Neuling wrote: > In message <4c511216.30...@ozlabs.org> you wrote: >> When CPU hotplug is used, some CPUs may be offline at the time a kexec is >> performed. The subsequent kernel may expect these CPUs to be already running > , >> and will declare them stuck. On pseries, there's also a so

Re: [PATCH v2] powerpc/kexec: Fix orphaned offline CPUs across kexec

2010-07-29 Thread Michael Neuling
In message <4c511216.30...@ozlabs.org> you wrote: > When CPU hotplug is used, some CPUs may be offline at the time a kexec is > performed. The subsequent kernel may expect these CPUs to be already running , > and will declare them stuck. On pseries, there's also a soft-offline (cede) > state th

[PATCH v2] powerpc/kexec: Fix orphaned offline CPUs across kexec

2010-07-28 Thread Matt Evans
When CPU hotplug is used, some CPUs may be offline at the time a kexec is performed. The subsequent kernel may expect these CPUs to be already running, and will declare them stuck. On pseries, there's also a soft-offline (cede) state that CPUs may be in; this can also cause problems as the kexece