On 03/01/2018 10:24 AM, Brian Gerst wrote: > One thing that I am not certain about is whether debug exception can > happen even if the IF flag is cleared. If it can, debug exception should > be handled like NMI as the state of the CR3 can be indeterminate if the > exception happens in the entry/exit code. It can happen with IF cleared. I ran into it during PTI development more than once. That's why the debug fault code uses paranoid_entry on 64-bit just like the NMI code. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>
