UEFI RT Time Test1 causes kernel to try to execute NX-protected page on Dell Inc. OptiPlex 790/0D28YY, BIOS A18 09/24/2013

[Greg Land]

I am working on troubleshooting a problem I have filed a bug report on.
https://bugs.launchpad.net/fwts/+bug/1635347

I was hoping to get some advice on how to proceed with this.  Is there
anything else that would be useful for the bug report?  If anyone has
advice on how dig out some more information about this I would appreciate
it. Is there a utility I could run that would help trace the problem to the
uefi_runtime module, kernel, or firmware itself.  UEFI is an area where I
have very limited experience.

I am running the stack traces currently and am a little confused about
where the efi object gets introduced.  Maybe I am just missing it but
grepping around has not helped locate the definition. Sorry if this is
something elementary I am missing but this must be a global (or namespace)
that I am unable to locate in the source?

static long efi_runtime_get_time(unsigned long arg)
  {
      struct efi_gettime __user *gettime_user;
      struct efi_gettime  gettime;
      efi_status_t status;
      efi_time_cap_t cap;
      efi_time_t efi_time;

      gettime_user = (struct efi_gettime __user *)arg;
      if (copy_from_user(&gettime, gettime_user, sizeof(gettime)))
          return -EFAULT;

      status = *efi.get_time*(gettime.time ? &efi_time : NULL,
                    gettime.capabilities ? &cap : NULL);
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