Commit 94a1b192 authored by Helge Deller's avatar Helge Deller
Browse files

parisc: Show kernel unaligned memory accesses 



Warn if some kernel function triggers unaligned memory accesses.

Signed-off-by: default avatarHelge Deller <deller@gmx.de>
parent 73cb4a2d

arch/parisc/kernel/unaligned.c

+7 −0
Original line number Diff line number Diff line
@@ -399,6 +399,13 @@ void handle_unaligned(struct pt_regs *regs) 


		if (!unaligned_enabled)

			goto force_sigbus;

	} else {

		static DEFINE_RATELIMIT_STATE(kernel_ratelimit, 5 * HZ, 5);

		if (!(current->thread.flags & PARISC_UAC_NOPRINT) &&

			__ratelimit(&kernel_ratelimit))

			pr_warn("Kernel: unaligned access to " RFMT " in %pS "

					"(iir " RFMT ")\n",

				regs->ior, (void *)regs->iaoq[0], regs->iir);

	}



	/* handle modification - OK, it's ugly, see the instruction manual */