x86: improve early fault/irq printout

Impact: add a stack dump to early IRQs/faults

Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S
index 9f14107..84d05a4 100644 (file)
--- a/arch/x86/kernel/head_32.S
+++ b/arch/x86/kernel/head_32.S
@@ -577,6 +577,9 @@ ignore_int:
        pushl 40(%esp)
        pushl $int_msg
        call printk
+
+       call dump_stack
+
        addl $(5*4),%esp
        popl %ds
        popl %es
@@ -652,7 +655,7 @@ early_recursion_flag:
        .long 0
 
 int_msg:
-       .asciz "Unknown interrupt or fault at EIP %p %p %p\n"
+       .asciz "Unknown interrupt or fault at: %p %p %p\n"
 
 fault_msg:
 /* fault info: */