On Fri, 2008-11-28 at 20:51 +0100, Arnd Bergmann wrote: > plain text document attachment > (0003-powerpc-mpic-don-t-reset-affinity-for-secondary-MPI.patch) > Kexec/kdump currently fails on the IBM QS2x blades when the kexec happens > on a CPU other than the initial boot CPU. It turns out that this is the > result of mpic_init trying to set affinity of each interrupt vector to the > current boot CPU. > > As far as I can tell, the same problem is likely to exist on any > secondary MPIC, because they have to deliver interrupts to the first > output all the time. There are two potential solutions for this: either > not set up affinity at all for secondary MPICs, or assume that a single > CPU output is connected to the upstream interrupt controller and hardcode > affinity to that per architecture. > > This patch implements the second approach, defaulting to the first output. > Currently, all known secondary MPICs are routed to their upstream port > using the first destination, so we hardcode that. > > Signed-off-by: Arnd Bergmann <[EMAIL PROTECTED]>
Acked-by: Benjamin Herrenschmidt <[EMAIL PROTECTED]> _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
