On Tue, Jan 06, 2015 at 08:00:41PM +0100, Borislav Petkov wrote:
> I'll redo the whole games tomorrow.
Ok I can't reproduce today either. Let's ascribe it to this particular
test box being funny or something in 3.19-rcs.
We can look at it if it happens again.
Thanks.
--
Regards/Gruss,
Bori
On Tue, Jan 06, 2015 at 10:43:57AM -0800, Andy Lutomirski wrote:
> Sure, but the code would be simpler if we shoved that value in the
> EFLAGS slot.
There probably is some reason for that but it's not like we can change
it :-)
> Hmm. I added and pushed a test for fork, but that didn't turn
> any
On Jan 6, 2015 7:34 AM, "Borislav Petkov" wrote:
>
> On Mon, Jan 05, 2015 at 12:31:15PM -0800, Andy Lutomirski wrote:
> > Do you have context tracking on?
>
> Yap, it is enabled for whatever reason:
> CONFIG_CONTEXT_TRACKING=y
> CONFIG_CONTEXT_TRACKING_FORCE=y
> CONFIG_HAVE_CONTEXT_TRACKING=y
I'l
On Mon, Jan 05, 2015 at 12:31:15PM -0800, Andy Lutomirski wrote:
> Do you have context tracking on?
Yap, it is enabled for whatever reason:
CONFIG_CONTEXT_TRACKING=y
CONFIG_CONTEXT_TRACKING_FORCE=y
CONFIG_HAVE_CONTEXT_TRACKING=y
> I assume that's in the historical tree?
Yeah.
> > [ 180.059170]
On Mon, Jan 5, 2015 at 4:59 AM, Borislav Petkov wrote:
> On Fri, Nov 07, 2014 at 03:58:17PM -0800, Andy Lutomirski wrote:
>> The int_ret_from_sys_call and syscall tracing code disagrees with
>> the sysret path as to the value of RCX.
>>
>> The Intel SDM, the AMD APM, and my laptop all agree that s
On Fri, Nov 07, 2014 at 03:58:17PM -0800, Andy Lutomirski wrote:
> The int_ret_from_sys_call and syscall tracing code disagrees with
> the sysret path as to the value of RCX.
>
> The Intel SDM, the AMD APM, and my laptop all agree that sysret
> returns with RCX == RIP. The syscall tracing code do
The int_ret_from_sys_call and syscall tracing code disagrees with
the sysret path as to the value of RCX.
The Intel SDM, the AMD APM, and my laptop all agree that sysret
returns with RCX == RIP. The syscall tracing code does not respect
this property.
For example, this program:
int main()
{
