On 07/21/2018 03:49 PM, M. Vefa Bicakci wrote: > diff --git a/arch/x86/entry/entry_64.S b/arch/x86/entry/entry_64.S > index c7449f377a77..96e8ff34129e 100644 > --- a/arch/x86/entry/entry_64.S > +++ b/arch/x86/entry/entry_64.S > @@ -1129,7 +1129,7 @@ ENTRY(xen_failsafe_callback) > addq $0x30, %rsp > UNWIND_HINT_IRET_REGS > pushq $-1 /* orig_ax = -1 => not a system call */ > - PUSH_AND_CLEAR_REGS > + PUSH_AND_CLEAR_REGS clear_rbx=0 Do we need this at all? We are returning from the hypervisor here. -boris > ENCODE_FRAME_POINTER > jmp error_exit > END(xen_failsafe_callback)
