Hi Christian, hi Hari,

Le 04/04/2024 à 19:44, Christian Zigotzky a écrit :

Shall we use CONFIG_CRASH_DUMP to get int crashing_cpu = -1;?

Further information: 
https://lists.ozlabs.org/pipermail/linuxppc-dev/2024-March/269985.html 
<https://lists.ozlabs.org/pipermail/linuxppc-dev/2024-March/269985.html>

Looking at problematic commit 5c4233cc0920 ("powerpc/kdump: Split 
KEXEC_CORE and CRASH_DUMP dependency"), my feeling is that the change 
should be as follows.

Hari, can you confirm ?

diff --git a/arch/powerpc/platforms/85xx/smp.c 

b/arch/powerpc/platforms/85xx/smp.c
index 40aa58206888..3209fc92ac19 100644

--- a/arch/powerpc/platforms/85xx/smp.c
+++ b/arch/powerpc/platforms/85xx/smp.c

@@ -362,7 +362,7 @@ struct smp_ops_t smp_85xx_ops = {
  #endif
  };

-#ifdef CONFIG_KEXEC_CORE
+#ifdef CONFIG_CRASH_DUMP
  #ifdef CONFIG_PPC32
  atomic_t kexec_down_cpus = ATOMIC_INIT(0);

@@ -465,7 +465,7 @@ static void mpc85xx_smp_machine_kexec(struct kimage 

*image)

  	default_machine_kexec(image);
  }
-#endif /* CONFIG_KEXEC_CORE */
+#endif /* CONFIG_CRASH_DUMP */

  static void smp_85xx_setup_cpu(int cpu_nr)
  {