During kdump we run the crash handlers first then stop all other CPUs. We really want to stop all CPUs as close to the fail as possible and also have a very controlled environment for running the crash handlers, so it makes sense to reverse the order.
Signed-off-by: Anton Blanchard <an...@samba.org> --- Index: powerpc.git/arch/powerpc/kernel/crash.c =================================================================== --- powerpc.git.orig/arch/powerpc/kernel/crash.c 2010-07-15 20:49:39.941991306 +1000 +++ powerpc.git/arch/powerpc/kernel/crash.c 2010-08-03 16:36:08.451991018 +1000 @@ -402,6 +402,18 @@ void default_machine_crash_shutdown(stru */ hard_irq_disable(); + /* + * Make a note of crashing cpu. Will be used in machine_kexec + * such that another IPI will not be sent. + */ + crashing_cpu = smp_processor_id(); + crash_save_cpu(regs, crashing_cpu); + crash_kexec_prepare_cpus(crashing_cpu); + cpu_set(crashing_cpu, cpus_in_crash); +#if defined(CONFIG_PPC_STD_MMU_64) && defined(CONFIG_SMP) + crash_kexec_wait_realmode(crashing_cpu); +#endif + for_each_irq(i) { struct irq_desc *desc = irq_to_desc(i); @@ -438,18 +450,8 @@ void default_machine_crash_shutdown(stru crash_shutdown_cpu = -1; __debugger_fault_handler = old_handler; - /* - * Make a note of crashing cpu. Will be used in machine_kexec - * such that another IPI will not be sent. - */ - crashing_cpu = smp_processor_id(); - crash_save_cpu(regs, crashing_cpu); - crash_kexec_prepare_cpus(crashing_cpu); - cpu_set(crashing_cpu, cpus_in_crash); crash_kexec_stop_spus(); -#if defined(CONFIG_PPC_STD_MMU_64) && defined(CONFIG_SMP) - crash_kexec_wait_realmode(crashing_cpu); -#endif + if (ppc_md.kexec_cpu_down) ppc_md.kexec_cpu_down(1, 0); } _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev