From 441c7416b55d3d48b4aaafc5bdd804092387d877 Mon Sep 17 00:00:00 2001 From: Jeremy Fitzhardinge Date: Fri, 6 Mar 2009 09:56:59 -0800 Subject: xen/privcmd: print SIGBUS faults Print more detail about privcmd mapping faults for debugging. [ Impact: debug ] Signed-off-by: Jeremy Fitzhardinge --- drivers/xen/xenfs/privcmd.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers/xen/xenfs') diff --git a/drivers/xen/xenfs/privcmd.c b/drivers/xen/xenfs/privcmd.c index c7192f314f8..6b602f50536 100644 --- a/drivers/xen/xenfs/privcmd.c +++ b/drivers/xen/xenfs/privcmd.c @@ -403,6 +403,10 @@ static long privcmd_ioctl(struct file *file, #ifndef HAVE_ARCH_PRIVCMD_MMAP static int privcmd_fault(struct vm_area_struct *vma, struct vm_fault *vmf) { + printk(KERN_DEBUG "privcmd_fault: vma=%p %lx-%lx, pgoff=%lx, uv=%p\n", + vma, vma->vm_start, vma->vm_end, + vmf->pgoff, vmf->virtual_address); + return VM_FAULT_SIGBUS; } -- cgit v1.2.3-70-g09d2