[PATCH] ppc64-soft-reset-fixes

[Andrew Morton]

David Wilder <dwilder at us.ibm.com> wrote:
>
>  - For the crash scenario, when a CPU hangs with interrupts disabled and 
>  the other CPUs panic or user invoked kdump boot using sysrq-c. In this 
>  case, the hung CPU can not be stopped and causes the kdump boot not 
>  successful. This case can be treated as complete system hang and asks 
>  the user to activate soft-reset if all secondary CPUs are not stopped.

It breaks `make allmodconfig':

arch/powerpc/kernel/built-in.o(.toc+0x2a00): In function `PPC64_CACHES':
: undefined reference to `kexec_crash_image'