Messages in this thread | | | From | Andy Lutomirski <> | Date | Wed, 15 Jun 2016 11:12:37 -0700 | Subject | Re: [x86] 5ac0c41bf3: WARNING: CPU: 0 PID: 0 at arch/x86/mm/extable.c:50 ex_handler_rdmsr_unsafe |
| |
On Wed, Jun 15, 2016 at 11:07 AM, Borislav Petkov <bp@alien8.de> wrote: > On Wed, Jun 15, 2016 at 10:55:34AM -0700, Andy Lutomirski wrote: >> Isn't it this one? > > Yes, it is. > >> I'm not. If %pF points at some silly helper, we still want the frames below it. > > Why silly helper? It points to the rIP where the *MSR instruction is. > Can't get more precise than that.
A hypothetical helper.
void do_thing(unsigned long msr) { rdmsr(...); }
void actual_problem(void) { do_thing(0xbaadc0de); }
I want to see actual_problem in the log.
--Andy
| |