[SPARC64]: Log faulting vaddr when bogus kernel PC detected. (bf941d6c) · Commits · 戴 / test

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;
		}
		}