Commit eab861a7 authored Jul 02, 2015 by Anton Blanchard Committed by Michael Ellerman Jul 06, 2015

powerpc: Add plain English description for alignment exception oopses



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 <anton@samba.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

parent 8c00d5c9

arch/powerpc/mm/fault.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -529,6 +529,10 @@ 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");