From af93ebc0b3ed8cdf93a6ed4bc1fab548f8059d0a Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Fri, 19 Oct 2007 20:35:02 +0200 Subject: [PATCH] x86: remove page_fault_trace Old debugging code that is not really needed anymore. If someone wants it it would be better replaced with a systemtap script or kprobe. This avoids a potential cache miss during page fault processing. [ mingo: arch/x86 adaptation ] Signed-off-by: Andi Kleen Signed-off-by: Ingo Molnar Signed-off-by: Thomas Gleixner --- arch/x86/mm/fault_64.c | 12 ------------ 1 file changed, 12 deletions(-) diff --git a/arch/x86/mm/fault_64.c b/arch/x86/mm/fault_64.c index 5e0e54906c48..af79cf60866c 100644 --- a/arch/x86/mm/fault_64.c +++ b/arch/x86/mm/fault_64.c @@ -285,7 +285,6 @@ static int vmalloc_fault(unsigned long address) return 0; } -static int page_fault_trace; int show_unhandled_signals = 1; /* @@ -354,10 +353,6 @@ asmlinkage void __kprobes do_page_fault(struct pt_regs *regs, if (likely(regs->eflags & X86_EFLAGS_IF)) local_irq_enable(); - if (unlikely(page_fault_trace)) - printk("pagefault rip:%lx rsp:%lx cs:%lu ss:%lu address %lx error %lx\n", - regs->rip,regs->rsp,regs->cs,regs->ss,address,error_code); - if (unlikely(error_code & PF_RSVD)) pgtable_bad(address, regs, error_code); @@ -621,10 +616,3 @@ void vmalloc_sync_all(void) BUILD_BUG_ON(!(((MODULES_END - 1) & PGDIR_MASK) == (__START_KERNEL & PGDIR_MASK))); } - -static int __init enable_pagefaulttrace(char *str) -{ - page_fault_trace = 1; - return 1; -} -__setup("pagefaulttrace", enable_pagefaulttrace); -- 2.39.5