[S390] kernel: show last breaking-event-address on oops

[safe/jmp/linux-2.6] / arch / s390 / kernel / entry64.S

diff --git a/arch/s390/kernel/entry64.S b/arch/s390/kernel/entry64.S
index efde6e1..cd959c0 100644 (file)
--- a/arch/s390/kernel/entry64.S
+++ b/arch/s390/kernel/entry64.S
@@ -475,6 +475,7 @@ pgm_check_handler:
 pgm_no_vtime:
 #endif
        lg      %r9,__LC_THREAD_INFO    # load pointer to thread_info struct
+       mvc     SP_ARGS(8,%r15),__LC_LAST_BREAK
        TRACE_IRQS_OFF
        lgf     %r3,__LC_PGM_ILC        # load program interruption code
        lghi    %r8,0x7f
@@ -847,6 +848,7 @@ stack_overflow:
        je      0f
        la      %r1,__LC_SAVE_AREA+32
 0:     mvc     SP_R12(32,%r15),0(%r1)  # move %r12-%r15 to stack
+       mvc     SP_ARGS(8,%r15),__LC_LAST_BREAK
        xc      __SF_BACKCHAIN(8,%r15),__SF_BACKCHAIN(%r15) # clear back chain
        la      %r2,SP_PTREGS(%r15)     # load pt_regs
        jg      kernel_stack_overflow