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| author | Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> | 2009-03-06 18:56:59 +0100 |
|---|---|---|
| committer | Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> | 2010-10-21 01:22:31 +0200 |
| commit | 441c7416b55d3d48b4aaafc5bdd804092387d877 (patch) | |
| tree | 628131f9abe21d7b9534a6185f57ab263579cacc | |
| parent | xen/xenfs: set_page_dirty is supposed to return true if it dirties (diff) | |
| download | linux-441c7416b55d3d48b4aaafc5bdd804092387d877.tar.xz linux-441c7416b55d3d48b4aaafc5bdd804092387d877.zip | |
xen/privcmd: print SIGBUS faults
Print more detail about privcmd mapping faults for debugging.
[ Impact: debug ]
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
| -rw-r--r-- | drivers/xen/xenfs/privcmd.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/xen/xenfs/privcmd.c b/drivers/xen/xenfs/privcmd.c index c7192f314f86..6b602f505363 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; } |