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authorAndi Kleen <ak@suse.de>2007-10-19 20:35:02 +0200
committerThomas Gleixner <tglx@linutronix.de>2007-10-19 20:35:02 +0200
commitaf93ebc0b3ed8cdf93a6ed4bc1fab548f8059d0a (patch)
treed283cf44902a0ca14f1fe956765a2ba7391d6e09 /arch/x86/mm
parent096708dcf71de6ab5f839ae68ee42275673dc178 (diff)
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 <ak@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/mm')
-rw-r--r--arch/x86/mm/fault_64.c12
1 files changed, 0 insertions, 12 deletions
diff --git a/arch/x86/mm/fault_64.c b/arch/x86/mm/fault_64.c
index 5e0e54906c4..af79cf60866 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);