diff options
Diffstat (limited to 'arch/sparc64/mm/fault.c')
| -rw-r--r-- | arch/sparc64/mm/fault.c | 23 |
1 files changed, 19 insertions, 4 deletions
diff --git a/arch/sparc64/mm/fault.c b/arch/sparc64/mm/fault.c index 0dd118c8e..dc28ac339 100644 --- a/arch/sparc64/mm/fault.c +++ b/arch/sparc64/mm/fault.c @@ -1,4 +1,4 @@ -/* $Id: fault.c,v 1.4 1997/03/11 17:37:07 jj Exp $ +/* $Id: fault.c,v 1.8 1997/05/18 04:16:52 davem Exp $ * arch/sparc64/mm/fault.c: Page fault handlers for the 64-bit Sparc. * * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu) @@ -134,8 +134,11 @@ asmlinkage int lookup_fault(unsigned long pc, unsigned long ret_pc, return 0; } +/* #define FAULT_TRACER */ + asmlinkage void do_sparc64_fault(struct pt_regs *regs, int text_fault, int write, - unsigned long address) + unsigned long address, unsigned long tag, + unsigned long sfsr) { struct vm_area_struct *vma; struct task_struct *tsk = current; @@ -143,7 +146,19 @@ asmlinkage void do_sparc64_fault(struct pt_regs *regs, int text_fault, int write unsigned long fixup; unsigned long g2; int from_user = !(regs->tstate & TSTATE_PRIV); - +#ifdef FAULT_TRACER + static unsigned long last_addr = 0; + static int rcnt = 0; + + printk("do_sparc64_fault(PC[%016lx],t[%d],w[%d],addr[%016lx]tag[%016lx]" + "sfar[%016lx])\n", regs->tpc, text_fault, write, address, tag, sfsr); + if(address == last_addr && rcnt++ > 5) { + printk("Wheee lotsa bogus faults, something wrong, spinning\n"); + while(1) + barrier(); + } + last_addr = address; +#endif lock_kernel (); down(&mm->mmap_sem); vma = find_vma(mm, address); @@ -168,7 +183,7 @@ good_area: if(!(vma->vm_flags & (VM_READ | VM_EXEC))) goto bad_area; } - handle_mm_fault(vma, address, write); + handle_mm_fault(current, vma, address, write); up(&mm->mmap_sem); goto out; /* |