On Wed, Jul 19, 2023, Sean Christopherson wrote: > On Mon, Jul 17, 2023, Weijiang Yang wrote: > > diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c > > index e2c549f147a5..7d9cfb7e2fe8 100644 > > --- a/arch/x86/kvm/x86.c > > +++ b/arch/x86/kvm/x86.c > > @@ -11212,6 +11212,31 @@ static void kvm_put_guest_fpu(struct kvm_vcpu > > *vcpu) > > ������� trace_kvm_fpu(0); > > �} Huh. After a bit of debugging, the mangling is due to mutt's default for send_charset being "us-ascii:iso-8859-1:utf-8" and selecting iso-8859-1 instead of utf-8 as the encoding despite the original mail being utf-8. In this case, mutt ran afoul of nbsp (u+00a0). AFAICT, the solution is to essentially tell mutt to never try to use iso-8859-1 for sending mail set send_charset="us-ascii:utf-8"
