From 27cc64c7cc9e41788e53655c717aeca2f55f2041 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Wed, 21 Jun 2006 22:31:08 -0700 Subject: [PATCH] [SPARC64]: Rate limited kernel unaligned trap logging, ala IA64. Signed-off-by: David S. Miller --- arch/sparc64/kernel/unaligned.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/arch/sparc64/kernel/unaligned.c b/arch/sparc64/kernel/unaligned.c index 001e8518331f..bb2d68577855 100644 --- a/arch/sparc64/kernel/unaligned.c +++ b/arch/sparc64/kernel/unaligned.c @@ -279,12 +279,21 @@ static void kernel_mna_trap_fault(void) asmlinkage void kernel_unaligned_trap(struct pt_regs *regs, unsigned int insn) { + static unsigned long count, last_time; enum direction dir = decode_direction(insn); int size = decode_access_size(insn); current_thread_info()->kern_una_regs = regs; current_thread_info()->kern_una_insn = insn; + if (jiffies - last_time > 5 * HZ) + count = 0; + if (count < 5) { + last_time = jiffies; + count++; + printk("Kernel unaligned access at TPC[%lx]\n", regs->tpc); + } + if (!ok_for_kernel(insn) || dir == both) { printk("Unsupported unaligned load/store trap for kernel " "at <%016lx>.\n", regs->tpc); -- 2.30.2