If we take an alignment exception which we cannot fix, the oops
currently prints:
Unable to handle kernel paging request for unknown fault
Lets print something more useful:
Unable to handle kernel paging request for unaligned access at address
0xc0000000f77bba8f
Signed-off-by: Anton Blanchard <an...@samba.org>
---
arch/powerpc/mm/fault.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/arch/powerpc/mm/fault.c b/arch/powerpc/mm/fault.c
index b396868..661ba0a 100644
--- a/arch/powerpc/mm/fault.c
+++ b/arch/powerpc/mm/fault.c
@@ -528,6 +528,10 @@ void bad_page_fault(struct pt_regs *regs, unsigned long
address, int sig)
printk(KERN_ALERT "Unable to handle kernel paging request for "
"instruction fetch\n");
break;
+ case 0x600:
+ printk(KERN_ALERT "Unable to handle kernel paging request for "
+ "unaligned access at address 0x%08lx\n", regs->dar);
+ break;
default:
printk(KERN_ALERT "Unable to handle kernel paging request for "
"unknown fault\n");
--
2.1.4
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