Le 25/09/2018 à 03:29, Michael Ellerman a écrit :

Christophe Leroy [off-list ref] writes:

quoted

diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
index 6ab66a88db14..4567eeb6524e 100644
--- a/arch/powerpc/kernel/traps.c
+++ b/arch/powerpc/kernel/traps.c

@@ -2090,8 +2082,9 @@ void SPEFloatingPointRoundException(struct pt_regs *regs)
   */
  void unrecoverable_exception(struct pt_regs *regs)
  {
-	printk(KERN_EMERG "Unrecoverable exception %lx at %lx\n",
-	       regs->trap, regs->nip);
+	pr_emerg("Unrecoverable exception %lx at %lx (msr=%lx)\n",
+		 regs->trap, regs->nip, regs->msr);
+	debugger(regs);
  	die("Unrecoverable exception", regs, SIGABRT);

die() already calls debugger() if the trap is != 0x100.

I don't think we want to call it twice?

Oh, good spot. So nonrecoverable_exception() is calling it twice.

I'll fix the patch. Thanks.

Christophe