Commit bf941d6c authored by David S. Miller's avatar David S. Miller
Browse files

[SPARC64]: Log faulting vaddr when bogus kernel PC detected. 



Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 6c0f402f

arch/sparc64/mm/fault.c

+3 −2
Original line number Diff line number Diff line
@@ -91,12 +91,13 @@ static void __kprobes unhandled_fault(unsigned long address, 
	die_if_kernel("Oops", regs);

}



static void bad_kernel_pc(struct pt_regs *regs)

static void bad_kernel_pc(struct pt_regs *regs, unsigned long vaddr)

{

	unsigned long *ksp;



	printk(KERN_CRIT "OOPS: Bogus kernel PC [%016lx] in fault handler\n",

	       regs->tpc);

	printk(KERN_CRIT "OOPS: Fault was to vaddr[%lx]\n", vaddr);

	__asm__("mov %%sp, %0" : "=r" (ksp));

	show_stack(current, ksp);

	unhandled_fault(regs->tpc, current, regs);
@@ -280,7 +281,7 @@ asmlinkage void __kprobes do_sparc64_fault(struct pt_regs *regs) 
		    (tpc >= MODULES_VADDR && tpc < MODULES_END)) {

			/* Valid, no problems... */

		} else {

			bad_kernel_pc(regs);

			bad_kernel_pc(regs, address);

			return;

		}

	}