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

[Alex Hung]

Hi Greg,

I noticed you run fwts 16.03.00.  Please give the latest version 16.09.00 a
try.

You can install it from stable PPA:
https://wiki.ubuntu.com/FirmwareTestSuite#PPA

On Thu, Oct 20, 2016 at 10:41 AM, Greg Land <landjgregory at gmail.com> wrote:

> 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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>


-- 
Cheers,
Alex Hung
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