Missing CR3 switch ?
- Date: Fri, 8 Feb 2019 08:18:50 +0000
- From: "Abraham, Santosh" <santosh.abraham@xxxxxxx>
- Subject: Missing CR3 switch ?
I am trying to track down a strange application segfault error 15 bug - which is resisting any attempts to be explained by an application bug.
Hypothetically, if for some reason - the KPTI code failed to switch to the user CR3 while returning back, the kernel would presumably kill the application in the first instruction that it executed in user-space. In this case, would there be any other helpful messages in the kernel syslog other than segfault error 15, or is a completely different error message dumped ?